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Nome Waste Heat Recovery Report & Concept Design 1990
Alaska Energy Authority LIBRARY COPY NOME WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN Prepared for Alaska Energy Authority 701 East Tudor Road Anchorage, Alaska 99519 Prepared by Fryer/Pressley Engineering, Inc. 560 East 34th Avenue, Suite 300 Anchorage, Alaska 99503 MAY 1, 1990 sa TABLE OF CONTENTS 1.0 EXECUTIVE SUMMARY 2.0 INTRODUCTION 3.0 DESCRIPTION OF SITE VISIT 40 POWER PLANT DESCRIPTION 5.0 POTENTIAL WASTE HEAT USER BUILDING DESCRIPTIONS 6.0 RIGHT-OF-WAY/EASEMENT 7.0 CONCEPT DESIGN 8.0 ECONOMIC DATA 9.0 FAILURE ANALYSIS 10.0 CONCLUSIONS AND RECOMMENDATIONS APPENDICES 1 Calculations a Contact Names 3. Cost Estimates 4. Raw Data 10 47 87 100 Nom oor NOME WASTE HEAT RECOVERY . REPORT AND CONCEPT DESIGN MAY 1, 1990 LIST OF FIGURES AND TABLES Nome Power Generation - 1989 Nome Historical Power Production Hospital Photographs Hospital Warehouse Photographs Health Services Photographs Hospital Complex Fuel Use Recreation Center Photographs Recreation Center Fuel Use Apartments Photographs Apartments Fue! Use Elementary School Photographs Elementary School Fuel Use Professional Building Photographs Professional Building Fuel Use Lutheran Church Photographs Lutheran Church Fuel Oil Use Police/Fire Station Photographs Police/Fire Station Fuel Use Public Works Garage Photographs Public Works Garage Fuel Use Hanson Trading Company Photographs Hanson Trading Company Fuel Use Bonanza Auto Photographs Bonanza Auto Fuel Use Figure 1 - Legend Figure 2 - System Schematic Figure 3 - Community Plan Figure 4 - Site Plan Detail Figure 5 - Power Plant Cooling Schematic Figure 6 - Hospital Building Floor Plan Figure 7 - Hospital Building Boiler Schematic Figure 8 - Hospital Warehouse Floor Plan Figure 9 - Hospital Warehouse Boiler Schematic Figure 10 - Community Services Floor Plan Figure 11 - Community Services Boiler Schematic Figure 12 - Recreation Center Floor Plan Figure 13 - Recreation Center Boller Schematic Page iii NOME WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN 12 14 16 7 21 23 24 26 27 32 33 35 38 39 4) SAFRLSSSSaES 59 61 62 MAY 1, 1990 Figure 14 - Apartment Floor Plan Figure 15 - Apartment Boiler Schematic Figure 16 - Elementary School Floor Plan Figure 17 - Elementary School Boiler Schematic Figure 18 - Professional Building Floor Plan Figure 19 - Professional Building Boller Schematic Figure 20 - Lutheran Church Floor Plan Figure 21 - Lutheran Church Boiler Schematic Figure 22 - Police/Fire Station Floor Plan Figure 23 - Police/Fire Station Boller Schematic Figure 24 - Public Works Garage Floor Plan Figure 25 - Public Works Garage Boiler Schematic Figure 26 - Hanson Trading Company Floor Plan Figure 27 - Hanson Trading Company Boiler Schematic Figure 28 - Bonanza Auto Floor Plan Figure 29 - Bonanza Auto Boiler Schematic Figure 30 - Valve Box and Service Connection Figure 31 - Trench Section Figure 32 - Expansion Loop Details Graph 1 Graph 2 NOME WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN GEARS 68 69 70 71 72 73 74 75 76 77 78 79 80 81 101 102 MAY 1, 1990 NOME WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN : MAY 1, 1990 1.0 SUMMARY A potential for waste heat recovery exists in the community of Nome. Heat energy could be recovered from diesel engine-generator sets operated by the Nome Joint Utility System (NJUS) and circulated to user buildings in the community. A number of potential waste heat users have been identified. These potential users include, but are not limited to the Norton Sound Hospital and its satellite buildings, the Nome Recreational Center, a number of multi-unit residential housing units, the Nome Elementary School and a number of smaller commercial and publicly owned buildings located along Bering Street. During the course of the this project a proposition was investigated to extend the cogeneration system now in operation at the Beltz School to the Anvil Mountain Correctional Facility and the Highway Maintenance Facllities operated by the DOT/PF was raised. Analysis indicated that vir- tually all of the heat energy from the existing cogeneration plant Is used by the high school so that additional connection would not be economically justifiable. The electric generation picture for the community of Nome, as well as mining companies operating in the region, Is currently in a state of flux: ° The electric generation plant now serving the City of Nome is located between the airport and downtown Nome on the flood plain of the Snake River. The exist- ing plant was constructed in the early 1950's and is nearing the end of its useful life. Generation equipment located within this plant is scheduled to be replaced with more energy efficient equipment over the next few years. ° In 1985 a 2.6 megawatt General Motors EMD generation machine and support- ing plant was installed at Belmont Point. On December 25, 1989 the Belmont Point facility was destroyed by fire. ° In 1986 a 600 kilowatt Mitsubishi generator was install at the Beltz School complex located about 2 miles north of Nome. That plant was configured as a total energy, or cogeneration, plant and continues to operate today. ° The Alaska Gold Company (AGCo) currently operates four 1.0 megawatt Caterpillar units and two 0.981 megawatt Fairbanks Morse units at its property lo- cated near downtown Nome. This facility furnishes electric power required for two large dredges used in placer mining operations near Nome. These mining operations are seasonal with activity suspended during the winter months. Page 1 NOME WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 1, 1990 e The NJUS is now in negotiations with AGCo to locate the replacement of the Bel- mont Point plant on the AGCo site. Furthermore, if these negotiations are suc- cessful the NJUS could end up operating not only the AGCo plant, but could also install new generation equipment as it was acquired on the AGCo property. These arrangements could result with the gradual relocation of the NJUS genera- tion plant from its current Snake River location to the AGCo generation site. Because the planning for the generation scheme for the city of Nome is unsettled assumptions have been made conceming the character of future electric generation plant facilities. Our work has been undertaken assuming the NJUS would be successful in its negotiations with AGCo and would assume the responsibility for operation of generation equipment now operated by AGCo. Furthermore, we assumed the AGCo facilities would be expanded, over time, with the installation of at least an additional 5 megawatts of generation capacity. It appears as if the most advantageous system will provide heat to the Hospital, the hospital warehouse, and to the Community Health Services Building. A summary of the construction cost estimates along with design and SIA costs is included in the Cost Estimate Appendix. If the system is installed connecting the above mentioned buildings, the following are the estimated results: Estimated Project Cost $821,900 Total Fuel Oil Savings 77 675 gallons Total Annual Dollar Savings $103,300 Page 2 NOME WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 1, 1990 2.0 INTRODUCTION 2.1 2.2 2.3 Objective The objective of the field investigation and report Is to ascertain the viability of waste heat recovery and use in the community of Nome. It has been established that there is a potential source and use for the heat energy, and that the com- munity is interested in pursuing the matter. Methodology The approach for investigation and analysis has been as follows: 1 Pre-site visit information gathering: this has consisted of contact with the community officials, owners/operators of potential user buildings, and contact with the local utility. The site visit was coordinated with the local building owners/operators. 2: Field Investigation: a visit was made to the community to view the site. Photographs of the potential user buildings were taken as well as of the electrical generation buildings and equipment. Sketches were made of the equipment and piping connections. The project was discussed with local interested parties. 3. Office Analysis: additional information was collected regarding weather and historical electrical energy production. This was used in a model to predict the system performance and the amount of energy recovered. 4, Report Preparation: a draft version report was prepared for the expected audience - users and agencies with an interest. Community Description Tne City of Nome is located on the Northern shore of the Norton Sound in the Bering Sea about 540 air miles northwest of Anchorage. About 4,400 people live in Nome and the vicinity year round. During the warm months of the year an additional 1,000 move to the area to participate in the mining, construction, tourism and other seasonal activities. Page 3 2.4 NOME WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN . MAY 1, 1990 Applicable Codes and Regulations The most recently State of Alaska-adopted editions (1985 for all except as noted) of the following codes and regulations have been used in the preparation of the concept design. These are listed below: Uniform Plumbing Code (UPC - 1979) Uniform Mechanical Code (UMC) Uniform Building Code (UBC) Uniform Fire Code (UFC) National Electrical Code (NEC - 1987) National Fire Protection Association (NFPA) Codes Page 4 NOME WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 1, 1990 3.0 DESCRIPTION OF SITE VISIT 3.1 3.2 Field Notes Contact names are included as part of the Appendix at the end of this report. They include both field contacts and contacts made by phone. Field Contacts The following people were contacted in the field or prior to the field trip: Joe Murphy, General Manager of the Nome Joint Utility System Steve Wilson, Power Plant Foreman, Nome Joint Utility System. Paul Merkouris, member of the Board of Directors of Nome Joint Utility Sys- tem and Maintenance Superintendent of the Beltz School. Dr. Donald Darling, Superintendent, Nome Public Schools. Myron Michels, Superintendent, Anvil Mountain Correctional Center. Frank Richardson, Road Superintendent, DOT/PF. George Peratrovich, Director of Community Health Services, Norton Sound Health Corporation. Gary Butcher, Alaska Gold Company. Dick Wagner, Maintenance Superintendent, City of Nome Cussy Reardon, City Clerk, City of Nome. Sharon Waluk, Trustee of the Lutheran Church. Jerry Finke, General Manager, Hanson’s Store. Randy and Kathy Pomerantz, Managers for Augdahl Apartments Dianne Rabb, Director of Hospital Services - N.S.H.C. Bob Shum, Manager of Bonanza Auto Page 5 NOME WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 1, 1990 4.0 POWER PLANT DESCRIPTION 41 4.2 Narrative Description The electrical utility for Nome is the Nome Joint Utility System (NJUS) which is also involved in other municipal utilities. The NJUS power plant is located adjacent to the Snake River to the west of the main part of town, between the town and the airport. The power plant building is a metal skin structure with a slab on grade foundation in fair condition and was originally constructed in the 1950's. Above the existing power plant, on a small rise, are four 840,000 gallon fuel oil tanks. None of the tanks are heated. The NJUS uses number 2 fuel oil exclusively for the engines. The fuel in the tanks is used for NJUS and for the schools in the area. A truck loading rack located adjacent to the power plant building is used to transport the fuel to the school buildings. There are six engine generator sets currently in use at the power plant. Normally, 2 or 3 sets will run at any given time. The engine generator sets are listed later. Two separate systems currently make use of engine Jacket waste heat recovery. The first Is the 600 KW generator located at Beltz high school. The power genera- ted there Is fed back into the power grid and the heat rejected to the jacket water Is recovered and used at the school. The second use for waste heat is in the Snake River plant which uses heat recovered from the jacket water to heat the city circulating water loop. Both of these factors are corrected for in the waste heat recovery model. The power generated at Beltz has been subtracted from the total power generated, and the energy needed to heat the city water is also subtracted from the heat energy available. If or when the generators are relocated, the city water will continue to need to be heated. This can be accomplished near the Alaska Gold power plant. At the Recreation Center is a large water storage tank for the city. Water heating could occur at or near this location. Alaska Gold Operations Tne NJUS provides power to most users in the area with a few notable excep- tions. Alaska Gold Corp. and West Gold Corp. both generate their own electricity during their summer operations (May through October) although West Gold purchases power from NJUS during the winter months. Page 6 43 4.4 NOME WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 1, 1990 Tne Alaska Gold operation is of specific interest for two independent reasons. The first is that the NJUS may relocate their power production to the Alaska Gold site or even the Alaska Gold power plant, and Alaska Gold may start buying power from NJUS. Tne Alaska Gold power plant is located on the north edge of town. The plant currently has a total of six generators available for use. Two of the old generators are located in a power plant built in the 1930’s. The other four generators are lo- cated in a metal skin and steel structure built in 1975. Both buildings have slab on grade foundations and are in fair to good condition. No current use is made of waste heat in the Alaska Gold power plant. ALASKA GOLD CORPORATION EQUIPMENT 4 Caterpillar 3512, 1,000 KW 2 Fairbanks Morse Type TGZO 33D 16, 981 KW NOME JOINT UTILITY SYSTEM EQUIPMENT 1 General Motors EMD 20645F4B, 2,800 KW 1 General Motors EMD 126454, 1,500 KW 1 Fairbanks Morse 38TD 8-1/8, 1.000 KW 3 Cooper Bessemer JS6T, 600 KW 1 Cooper Bessemer LS8T, 1,200 KW ] Mitsubishi 512A2-ETA, 600 KW (Beltz School) Floor Plan and Schematics See the Figure 5 for a simple schematic of the expected waste heat recovery sys- tem (located in Section 7). Figures 3 and 4 in the same section show the loca- tions of the power plants. Available Load Information Refer to the attached Table 1 indicating the monthly total power production for 1989. Table 2 shows the historical yearly power production and peak load. The Table also shows the percent increase in production over the previous year. Figures for other years are also available from NJUS. Page 7 TABLE 1 NOME POWER GENERATION 1989 PRODUCTION} HOURS/ | AVG. LOAD KWH MONTH JAN 2,780,400 3737 FEB 2,311,376 672 3440 MAR 2,552,008 744 3430 APR 2,472,098 720 3433 MAY 2,408,259 744 3237 JUNE 1,790,328 720 2487 JULY 1,938,466 744 2605 AUG 1,972,068 744 2651 SEP 1,931,887 720 2683 OCT 2,121,805 744 2852 NOV 2,239,354 720 3110 DEC 2,941,340 744 3953 ANNUAL 27,459,389 8760 3135 FIGURES INCLUDE REMOTE GENERATOR (BELTZ) Page 8 TABLE 2 NOME HISTORICAL POWER GENERATION PRODUCTION] INCREASE FRO! ean AVG. LOAD KWH PREV. YR. 1984 20,595,100 2351 1985 21,818,000 2491 1986 22,492,400 2568 1987 22,748,544 2597 1988 24,056,200 2746 1989 27,459,389 3135 AVERAGE 2648 Page 9 NOME WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN j MAY 1, 1990 5.0 POTENTIAL WASTE HEAT USER BUILDING DESCRIPTIONS 5.1 5.2 General During the site visit, all buildings within a reasonable distance of the power plant, and with a significant heating load were considered. The buildings were visited and information about them gathered. The information is presented below. Photographs accompany each building description. Plans and schematics can be found in Section 7. The Norton Sound Health Corporation Hospital General The Norton Sound Health Corporation Hospital is located between Bering Street and Division Streets and between East Sixth and Fifth avenues just on the north side of town. The hospital is composed of a number of additions. The original building is more than 30 years old. Since its initial construction, a number of addi- tions have been made including a modern Eldercare facility (1987) which has been added to the building along with extensive renovations. The facility is, for the most part, a single story frame building. Portions of the hospital make use of slab on grade foundations while others, such as the Elder- care have a pile foundation. The service area of the original building consists of a two story space with some of the shops, storage and laundry in a partial base- ment; overhead are administrative offices. The Hospital building has a total of approximately 56,000 square feet. Heating Energy Use The entire hospital is served from a single boiler room located on the north side of the complex. Three steam boilers are used, each rated at approximately 2,A00,000 Btu/Hr. Two of the boilers are used at any one time, the third is used as back-up. A fourth steam boiler is used for process steam loads such as the laundry, the kitchen, and sterilizers. The majority of space heating in the hospital is through the use of hydronic ter- minal units. About 15% of the existing units are steam type. The remaining ter- minal units are served from shell-and-tube heat exchangers located adjacent to Page 10 NOME WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 1, 1990 the steam boilers which are used to heat the hydronic heating fluid. Domestic hot water is currently produced using a shell-and-tube heat exchanger with steam input. See Table 3 for all of the health care facilities fuel oll use informa- tion. The annual consumption is based on estimates from the Norton Sound Health Corporation. Accurate historical records were evidently not readily avail- able. Page 11 PHOTO 1: HOSPITAL Building Exterior PHOTO 2: HOSPITAL Bollers Page 12 5.3 NOME WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 1, 1990 Hospital Warehouse General The warehouse building is actually used for a combination of shipping and receiving, and for storage. The structure is approximately 3200 square feet and Is of frame construction with a slab on grade foundation (with thermosiphons). Ac- tual age in not known. Heating Energy Use The building is heated through the use of a single hydronic boiler rated at 191 MBH. Domestic hot water is produced using heating fluid from the boller. Refer to Table 3 for fuel oil use figures. Page 13 PHOTO 3: HOSPITAL WAREHOUSE Building Exterior saRSt PHOTO 4: HOSPITAL WAREHOUSE } Boiler Page 14 5.4 NOME WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 1, 1990 Community Health Services General This building is a wood frame structure on wood piles of approximately 10,500 square feet. It is used for various health-related activities in the community. The building is in good condition. Heating Energy Use The building is heated through the use of two hydronic boilers each rated at 292 MBH. Domestic hot water is produced using an oil-fired water heater. refer to Table 3 for fuel use figures. Page 15 PHOTO 5: COMMUNITY HEALTH SERVICES Building Exterior PHOTO 6: COMMUNITY HEALTH SERVICES Boilers Page 16 TABLE 3 BUILDING: MAIN HOSPITAL BLDG. YEARLY FUEL USE: 86,700 REDUCTION FOR STEAM. HTG 25% HEATING NET HEATING |TOTAL USE DEGREE DAYS USE (GALLONS) |(GALLONS) JAN 1823.6 1806 8361 10168 FEB 1711.1 1806 7845 9652 MAR 1772.0 1806 8125 9931 APR 1406.5 1806 6449 8255 MAY 893.1 1806 4095 5901 JUNE 568.6 1806 2607 4413 JULY 433.6 1806 1988 3794 AUG 464.5 1806 2130 3936 SEP 671.5 1806 3079 4885 OCT 1142.3 1806 5237 7044 NOV 1450.8 1806 6652 8458 DEC 1844.4 1806 8457 10263 14,182 21,675 65,025 86,700 BUILDING: NSHC WAREHOUSE YEARLY FUEL USE: 3,200 REDUCTION FOR DHW: 0% ooooooooo°ceo 14,182 3,200 3,200 Page 17 BUILDING: COMM. HEALTH SERVICES YEARLY FUEL USE: 10,500 REDUCTION FOR DHW: 10% TH | HEATING DOM. WATER |NETHEATING |TOTAL USE DEGREE DAYS}HEATING USE (GALLONS) |(GALLONS) GALLONS 88 1303 FEB 88 1228 MAR 88 1268 APR 88 1025 MAY 88 683 JUNE 88 466 JULY 88 376 AUG 88 397 SEP 88 535 OCT 88 849 NOV 88 1054 DEC 88 1316 50 10,500 Page 18 5.5 NOME WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 1, 1990 Nome Recreation Center General Tne Nome Recreation Center is a 28,000 square foot complex that houses a gym- nasium, racquetball courts, bowling alley, a kitchen, office space, storage and other support spaces. It is located North of 6th Avenue some 400 feet East of the Alaska Gold Company’s power house. Heating Energy Use The complex is supported by two mechanical rooms. On the west side of the building is a mechanical space containing two hydronic boilers. On the east side of the building is a small boiler room that contains one boiler rated at 417 MBH. Domestic hot water is produced using oil-fired water heaters. Refer to Table 4 for fuel oil use estimates. These figures are based on average consumption over three years as reported by the City of Nome. Page 19 PHOTO 7: RECREATION CENTER Building Exterior & Water Tank PHOTO 8: RECREATION CENTER Boiler Room No. 2 Page 20 TABLE 4 BUILDING: REC. CENTER YEARLY FUEL USE: 13,919 REDUCTION FOR DHW: 15% MONTH |HEATING DOM. WATER |NETHEATING |TOTAL USE DEGREE DAYS/HEATING USE (GALLONS) |(GALLONS) iALLONS JAN 1695 FEB 1601 MAR 1652 APR 1347 MAY 919 JUNE 648 JULY 536 AUG 561 SEP 734 OCT 1127 NOV 1384 DEC 1713 13,919 Page 21 5.6 NOME WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 1, 1990 Apartment Buildings General The buildings are sometimes referred to as the Augdahl Apartments after their owner, Roger Augdahl. There are two separate buildings, each consisting of two modules. Each module contains four 1000 square foot apartments. Each of the buildings then qualifies as an 8-plex for a total of 16 apartments between the two buildings. The construction Is wood frame on a pile foundation. Construction was complete in 1986 and the buildings are in good condition. Heating Energy Use Each of the bulldings is heated through the use of two hydronic boilers each tated at 264 MBH. Domestic hot water Is produced using an oll-fired water heater. Fuel use is shown in Table 5 based on figures provided by the apartment managers. Detailed historical records were not available. Page 22 PHOTO 9: APARTMENTS Building Exterior PHOTO 10: APARTMENTS Boilers TABLE 5 BUILDING: APARTMENTS YEARLY FUEL USE: 8,400 REDUCTION FOR DHW: 10% NTH | HEATING DOM. WATER |NETHEATING |TOTAL USE DEGREE DAYS) HEATING USE (GALLONS) |(GALLONS) LLON: JAN 1042 FEB 982 MAR 1015 APR 820 MAY 546 JUNE 373 JULY 301 AUG 318 SEP 428 OCT 679 NOV 843 DEC 1053 8,400 Page 24 5.7 NOME WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 1, 1990 Nome Elementary School General Tne Nome Elementary School is a modern 62,000 square foot facility constructed in 1988. The construction is steel with a pile foundation. The school consists mostly of classroom and associated space but it also includes a gymnasium, a library, and a commons area. . Heating Energy Use Tne school boiler room Is located at the northwest corner of the building. It con- tains two hydronic boilers rated at 1108 MBH each that provide space heat through an ethylene glycol system. Domestic hot water is produced through the use of oil-fired water heaters. Table 6 shows the fuel oil use estimates based on information provided from the Nome Public Schools. Detailed historical records were not immediately available. Page 25 PHOTO 11: ELEMENTARY SCHOOL Building Exterior PHOTO 12: ELEMENTARY SCHOOL Boilers Page 26 TABLE 6 BUILDING: ELEM. SCHOOL YEARLY FUEL USE: 83,918 REDUCTION FOR DHW: 10% MONTH |HEATING DOM. WATER |NETHEATING |TOTAL USE DEGREE DAYS/HEATING USE (GALLONS) |(GALLONS) jALLONS JAN 9712 10411 FEB 9112 9812 MAR 9437 10136 APR 7490 8190 MAY 4756 5456 JUNE 3028 3727 JULY 2309 3008 AUG 2474 3173 SEP 3576 4275 OCT 6083 6783 NOV 7726 8426 DEC 9822 10522 75,526 83,918 Page 27 5.8 NOME WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 1, 1990 Nome Professional Building General Tne Nome Professional Building is a 6,800 square foot office building located be- tween 4th and 5th on the west side of Bering street. A dental clinic Is located on the lower floor along with one apartment. Four more apartments are located on the second floor. Tne construction is wood frame with a pile foundation. The building is in good condition. Heating Energy Use Heat is currently provided by a single hydronic boiler rated at 683 MBH. Domes- tic hot water is produced through the use of an oil-fired water heater. Fuel use estimates are shown in Table 7 based on information from other reports. Page 28 PHOTO 13: PROFESSIONAL BUILDING Building Exterior ® = g a $ o & 5 & = Q ° = 3 3 Page 29 TABLE 7 BUILDING: PROF. BLDG. YEARLY FUEL USE: 5,500 REDUCTION FOR DHW: 10% MONTH |HEATING DOM. WATER |NETHEATING |TOTAL USE DEGREE DAYS/HEATING USE (GALLONS) (GALLONS) ALLONS JAN 1823.6 46 636 682 FEB 1711.1 46 597 643 MAR 1772.0 46 618 664 APR 1406.5 46 491 537 MAY 893.1 46 312 358 JUNE 568.6 46 198 244 JULY 433.6 46 151 197 AUG 464.5 46 162 208 SEP 671.5 46 234 280 OCT 1142.3 46 399 445 NOV 1450.8 46 506 552 DEC 1844.4 46 644 690 14,182 550 4,950 5,500 Page 30 NOME WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 1, 1990 5.9 Lutheran Church General Tne Lutheran Church is located just south of the hospital at the corner of Bering Street and 5th Avenue, is a 10,300 square foot, wood frame building complex. It has a slab on grade foundation and is in fair condition. Heating Energy Use Tne church is heated with a old cast iron boiler which should be replaced in the not too distant future. Once the old, bulky boiler is replaced there will be ade- quate space within the boiler room to accommodate a new heat exchanger of the size required. Estimates of fuel oil use can be found in Table 8 based on infor- mation provided by a church trustee. Detailed records were not available. Page 31 PHOTO 15: LUTHERAN CHURCH Building Exterior PHOTO 16: LUTHERAN CHURCH Building Exterior Page 32 TABLE 8 BUILDING: LUTHERAN CHURCH YEARLY FUEL USE: 11,500 REDUCTION FOR DHW: 10% HEATING DOM. WATER |NETHEATING |TOTAL USE DEGREE DAYS/HEATING USE (GALLONS) |(GALLONS) (GALLONS 96 1331 1427 1249 1345 1293 1389 1026 1122 652 748 415 511 316 412 339 435 490 586 834 929 1059 1155 1346 1442 10,350 11,500 Page 33 5.10 NOME WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 1, 1990 Police/Fire Station The Nome Fire/Police Station is located on the West side of Bering street, be- tween 4th and third streets. The Police/Fire station is 5800 square feet and is of wood frame construction with a slab on grade foundation. The building Is in fair condition. Heating Energy Use The building Is served by a single hydronic boller rated at 336 MBH. Domestic water is produced using heating fluid from the boiler. Estimates of fuel oil use are shown in Table 9. The figures for this building, as for the Public Works Garage were estimated based on combined average use over 4 years, and then divided up based on building area. Since both buildings draw from a single tank and the fuel is not metered, there are no separate records. Page 34 PHOTO 17: POLICE/FIRE STATION Building Exterior PHOTO 18: POLICE/FIRE STATION Boiler Page 35 TABLE 9 BUILDING: POLICE/FIRE STATION YEARLY FUEL USE: 7,920 REDUCTION FOR DHW: 0% MONTH |HEATING DOM. WATER |NETHEATING {TOTAL USE DEGREE DAYS/HEATING USE (GALLONS) |(GALLONS) GALLONS JAN 0 1018 1018 FEB 0 956 956 MAR 0 990 990 APR ) 785 785 MAY 0 499 499 JUNE 0 318 318 JULY 0 242 242 AUG 0 259 259 SEP 0 375 375 OCT 0 638 638 NOV 0 810 810 DEC 0 1030 1030 0 7,920 7,920 Page 36 NOME WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 1, 1990 5.11 Public Works Garage General The garage Is used for storage and maintenance of Public Works vehicles. The building is approximately 5000 square feet and is built with a metal skin and steel structure and a slab on grade foundation. The building Is in good condition. Heating Energy Use The building is heated through the use of a single hydronic boller rated at 292 MBH. Domestic hot water is produced using an oil-fired water heater. Fuel use estimates are shown in Table 10. Page 37 PHOTO 19: PUBLIC WORKS GARAGE Building Exterior PHOTO 20: PUBLIC WORKS GARAGE Boiler MONTH |HEATING DOM. WATER |NETHEATING |TOTAL USE DEGREE DAYS| HEATING USE (GALLONS) |(GALLONS) (GALLONS JAN FEB APR MAY JUNE JULY AUG SEP OCT NOV DEC TABLE 10 BUILDING: YEARLY FUEL USE: REDUCTION FOR DHW: 1823.6 1711.1 1772.0 1406.5 893.1 568.6 433.6 464.5 671.5 1142.3 1450.8 1844.4 14,182 PUBLIC WORKS GARAGE Page 39 6,830 10% 847 799 825 5.12 NOME WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 1, 1990 Hanson’s Store General Hanson’s Store is actually a complex consisting of 3 elements; a) a 9,600 sq.ft. warehouse, b) 1,800 sq.ft. apartment unit and c) 7,800 sq.ft. of retail sales space. The facilities are under new management and have been undergoing renova- tion over the past six months. For this reason historic fuel records for the facility are of little or no value to this study. Heating Energy Use Currently, the facility is heated with two hydronic boilers one rated at 326 MBH and another at 542 MBH. Domestic hot water is produced from the heating fluid from the boilers. The store’s general manager reports that the store has recently renovated the refrigeration system so as to capture waste heat produced by the compressors. Based upon conversations with the general manager and inves- tigation on-site, future fuel consumption is estimated at 5,500 gallons per year. Page 40 PHOTO 21: HANSON’S STORE Building Exterior PHOTO 22: HANSON’S STORE Boilers Page 41 JAN FEB APR MAY JUNE JULY AUG SEP OCT NOV DEC TABLE 11 BUILDING: HANSON'S STORE YEARLY FUEL USE: 5,500 REDUCTION FOR DHW: 0% HEATING DOM. WATER |NETHEATING |TOTAL USE DEGREE DAYS/HEATING USE (GALLONS) |(GALLONS) GALLONS 1823.6 0 707 707 1711.1 0 664 664 1772.0 0 687 687 1406.5 0 545 545 893.1 0 346 346 568.6 0 221 221 433.6 0 168 168 464.5 0 180 180 671.5 0 260 260 1142.3 0 443 443 1450.8 0 563 563 1844.4 0 715 715 14,182 0 5,500 5,500 Page 42 5.13 NOME WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 1, 1990 Bonanza Auto General Bonanza Auto is a wood frame building housing auto repair, auto rental agency, retail space, service station, and warehouse space. The building is 7.200 square feet in area. The building is in fair condition. Heating Energy Use The facility is heated with a single hydronic boiler rated at 259 MBH. Fuel use is shown in Table 12 based on annual fuel use information for 1989 provided by Bonanza Auto. Page 43 aie ee a —_ — er . SS i 2 — wie iy as _— Soe < ? —_ PHOTO 23: BONANZA AUTO Building Exterior PHOTO 24: BONANZA AUTO Boiler Page 44 TABLE 12 BUILDING: BONANZA AUTO YEARLY FUEL USE: 13,375 REDUCTION FOR DHW: 0% MONTH |HEATING DOM. WATER |NETHEATING |TOTAL USE DEGREE DAYS|HEATING USE (GALLONS) |(GALLONS) GALLONS JAN 1823.6 0 1720 FEB 1711.1 0 1614 MAR 1772.0 0 1671 APR 1406.5 0 1326 MAY 893.1 0 842 JUNE 568.6 0 536 JULY 433.6 0 409 AUG 464.5 0 438 SEP 671.5 0 633 OCT 1142.3 0 1077 NOV 1450.8 0 1368 DEC 1844.4 0 1739 14,182 0 13,375 Page 45 NOME WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 1, 1990 6.0 RIGHT-OF-WAY/EASEMENT 6.1 Narrative Description The issue of right-of-ways and easements were not addressed as part of this report. Page 46 NOME WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 1, 1990 7.0 CONCEPT DESIGN 7.1 System Narrative In-keeping with the previous AEA recommendations, the current concept design includes one flat plate heat exchanger at the power plant connected to a com- mon header so that heat can be recovered from any running engine. The flow will be assisted through the use of a booster pump on the engine side of the sys- tem. The pump is located out of the direct header so that in the event of failure, the heat recovery loop can be bypassed. On the primary loop, a main circulation pump will be designed for the pressure drop of the furthest connected building. In addition, an air separator, and ex- pansion tank, and a glycol make-up system is required. The pump’s design flow rate will be for the connected load at a 20 degree temperature drop. See the appendix for pump sizing for the various concepts. The piping to each of the connected buildings will be through arctic pipe buried underground to protect it from damage from passage of vehicles. Two separate arctic pipes are envisioned, one for supply to the building, and one for return to the power plant. See the attached Figure 2 for the system schematic. The pipe is expected to be run in the roads, away from existing utilities (water and sewer that are also buried beneath the road surface. Expansion loops will be required approximately every 300 feet of trench. The loop will jog 10 feet to the side, travel 6 feet, and then jog back 10 feet to the original line of the pipe. Figures 30 through 32 show some of the proposed construction details. Balancing valves are used at the connection to existing piping for two reasons. The first is to allow balancing of the flow to the heat exchanger; the second is to provide a means of measuring the flow rate at that point in the piping. All connections to the user buildings will be using flat plate heat exchangers. This will limit problems associated with damage of distribution piping and intercon- nection of systems. In some cases, 3 chambered heat exchangers are used to al- low a single run of arctic pipe to heat more than one system. Two separate heat exchangers are also proposed for the Recreation Center connection since there are two separate boiler systems. Page 47 NOME WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 1, 1990 The fluid to be used in the buried distribution system Is assumed to be an inhibited glycol mixture, either ethylene or propylene glycol. From the number of problems experienced with some water-based distribution systems, use of water alone is not recommended for a heat transfer fluid. Page 48 BALANCE VALVE GATE VALVE 2-WAY CONTROL VALVE 3-WAY CONTROL VALVE CHECK VALVE STRAINER UNION CIRCULATING PUMP THERMOMETER AIR SEPARATOR LOW WATER CUTOFF FLOW ARROW PIPE DOWN PIPE UP NEW RETURN LINE NEW SUPPLY LINE EXISTING RETURN LINE EXISTING SUPPLY LINE NEW EQUIPMENT/VALVES IN THIS COLOR EXISTING EQUIPMENT/VALVES IN THIS COLOR SYSTEM SCHEMATIC USES ADDITIONAL COLORS TO DEFINE SYSTEMS F|P sywsor Lecenp FRYER/PRESSLEY ENGINEERING 560 EAST 34th AVENUE SUITE 300 ANCHORAGE, ALASKA 99603 (907)561—1666 Page 49 Os ebeg N.S.H.C. WAREHOUSE POWER PLANT A OU} i REC CENTER At OOF aie VASVTV ‘SDVaOHONY coses O06 ZLINS UNNFAY Tiwe Lsva 099 CONCEPT 1 p I O acy QILVWIHOS W3LSAS d a CONCEPT 3 HOSPITAL Sem Bs ae PROFESSIONAL LUTHERAN BUILDING t CHURCH ONINHANIDNA ADISSHNd/ MAAN PUBLIC WORKS FIRE/POLIC! GARAGE STATION (~ Bia a ee HANSON’S STORE BONANZA COMMUNITY APARTMENTS CONCEPT 2 CONCEPT 4 LEGEND GENERATOR SYSTEM DISTRIBUTION SYSTEM BUILDING SYSTEM ELEMENTARY SCHOOL 7.2 7.3 74 7.5 NOME WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 1, 1990 Site Plan/Routing The routing will be as shown on the attached plan (Figure 4). The concept 1 is for connection only to the Hospital, the Hospital Warehouse, and to the Community Heatth Services building. Concept 2 continues on and connects to the Recrea- tion Center and the Apartments. Concept 3 is connection also to the Elemen- tary School. Concept 4 then adds 6 smaller buildings on Bering Street. Pipe sizes and lengths for each Concept are shown in the Appendix at the end of the Raw Data section. Power Plant Plans/Schematics See the attached Figure 5 for the design concept for changes to the power plant. User Building Plan/Schematics See the attached Figures 6 through 29 for proposed changes to each of the potential user buildings. Arctic Pipe/Utilidor Section A cross section of the anticipated trench and arctic pipe configuration is shown in the Figure 30 through 32. Page 51 zs ebeg APPROX. 2-1/2 MILES TO ANVIL MT. CORRECTIONAL CENTER AND BELTZ SCHOOL dj INON €0966 VXSVIV ‘SDVHOHONV 0OG ZLINS dANFAY TIVE Leva 099 NV1d ALINANWOD IWILYVd § ; 3 DNINAANIONA AMTSSHUd/ aA Q) SNAKE RIVER POWER PLANT (6) PUBLIC WORKS GARAGE (2) BELMONT POINT POWER PLANT (7) LUTHERAN CHURCH G) BONANZA AUTO PROFESSIONAL BUILDING () HANSON TRADING CO. N.S.H.C. HOSPITAL COMMUNITY HEALTH SERVICES HOSPITAL WAREHOUSE ALASKA GOLD POWER PLANT COMMUNITY CENTER 8-PLEX APARTMENTS ELEMENTARY SCHOOL €s ebey €0966 VHSVIV ‘Z9VHOHONV 006 ZLINS UNNZAY Tire Leva 099 ONIMAANIDNG ATISSHYd/YaAN g ; 3 dj NV1d SLIS IWILdVd JSWON 40 ALIO HANSON TRADING CO. POLICE/FIRE STATION PUBLIC WORKS GARAGE LUTHERAN CHURCH PROFESSIONAL BUILDING I N.S.H.C. HOSPITAL COMMUNITY HEALTH SERVICES HOSPITAL WAREHOUSE ALASKA GOLD POWER PLANT COMMUNITY CENTER 8-PLEX APARTMENTS (13) ELEMENTARY SCHOOL PIPE SIZES CAN BE FOUND IN REPORT APPENDIX. ANCHORS AND EXPANSION LOOPS NOT SHOWN BUT OCCUR EVERY 300 FT. MANHOLES OCCUR AT EACH BUILDING CONNECTION. vs ebeg [ "LE BLADDER EXPANSION. TANK WW 1800 GPM @ i | SEE TEXT 20° HEAD. FOR PUMP 9 BHP, 10” | SIZING 15 HP MOTOR si { dj REMOTE RADIATORS LNV1d Y3MOd £0966 VHSVIV ‘ZSVHOHONY 006 ZLINS UNNZAY Nive Lsva 099 DNINAANIONA AISSHUd/YdAN JILVWSHOS INMNOO9 9991—199(206) OTHER GENERATOR SETS, TYPICAL YPICAL GENERATOR ET PIPING 10” PIPING ——7 GENERATOR ' | ' | ' | 1 ' ! ' ' ' ' ' 1 ' 1 ' I ' 1 | 1 ' | ' besos cee mame mek Ai} NOTE THAT PIPING SCHEMATIC IS BASED ON EXPECTED INSTALLATION - ~T0/FROM "ARCTIC PIPE PIPING RUN earl) AT CEILING > 2[- J JUL OLDEST PORTION SPACE FOR IN OF HOSPITA FUTURE EQUIPMENT BOILER ROOM SS NEWER ADDITION ELDERCARE TO HOSPITAL ADDITION —_———_| HOSPITAL FIP Fioor pian . ERYER/PRESSLEY ENGINEERING ANCHORAGE, ALASKA 99603 (907)561-1666 Page 55 ARCTIC PIPE RETURN SUPPLY NEW WORK | FLAT PLATE | HEAT EXCHANGER STEAM SUPPLY FROM BOILERS TUBE-IN—SHELL HEAT EXCHANGER, TYP: BUILDING SPACE HEAT SYSTEMS coal DOMESTIC -— WaTeR —~<t HX IN TANK NEW HEAT EXCHANGER TO CONDENSATE RECEIVER NORTON SOUND HOSPITAL FP pipinc piacram . FRYER/PRESSLEY ENGINEERING ANCHORAGE, ALASKA 996503 (907)561—1666 Page 56 Vf BOILER ROOM SPACE FOR TO/FROM = 5 —35-T FUTURE EQUIPMENT | ARCTIC PIPE > > PL N.S.H.C. WAREHOUSE F|P Floor pian . FERYER/PRESSLEY ENGINEERING ANCHORAGE, ALASKA 99503 (907)561-1666 Page 57 BOILER = i O NEW WORK a Te I 7 —<* Dt 4 > au 5 — 1-1/2" (TYP.) 1-1/2” (TYP.) 4 X Y = | CoD | CODD nn via 10/FROM | ARCTIC PIPE N.S.H.C. WAREHOUSE F|\P pipinc piacram E 7 FRYER/ PRESSLEY ENGINEERING ANCHORAGE, ALASKA 99603 (907)561-1666 Page 58 10 /FROM ARCTIC : PIPE __ _[f——— SPACE FOR FUTURE EQUIPMENT 5 4 AY PIPING HUNG BOILER ROOM UNDER STRUCTURE COMMUNITY HEALTH SERVICES F|P pire routine E|. FRYER/PRESSLEY ENGINEERING ANCHORAGE, ALASKA 99503 (907)561-1666 Page 59 1 | | at ————— oO: | DtiHap,e | ike <5 =o Pe ie | uu t— a4 phot—e-4 Se eel uw 4 = Sy THe u HH HH 4 @ 5 LE) a |-><b i) i HHH +> 5 ea HHP —— ——— COMMUNITY HEALTH SERVICES Tami F\P pipinc piacram CKD, BY . FRYER/PRESSLEY ENGINEERING |oae— Se ee Gace eorcei-s000 5/1/90 Page 60 SPACE FOR SPACE FOR FUTURE EQUIPMENT FUTURE es me | 43” ' ‘ i ——PIPING RUN UNDER STRUCTURE USING ARCTIC PIPE =a | | I 4a — iP! aaa en Mn. ie oa A BOILER ROOM #1 COMMUNITY RECREATION CENTER FIP pire routine E|. ERYER/PRESSLEY ENGINEERING | ANCHORAGE, ALASKA 99603 (907)561-1666 Page 61 TO/FROM ARCTIC PIPE oe 5 4 TO/FROM ARCTIC PIPE ARCTIC PIPE (3-CHAMBERS) HX #1 ~<t ~<@ 2 x =. i an i NEW WORK——= BOILER ROOM #2. ———+ jase ROOM #1 RECREATION CENTER FIP pipinc piacram FRYER/PRESSLEY ENGINEERING 560 EAST 34th AVENUE SUITE 300 ANCHORAGE, ALASKA 99503 (907)561-1666 Page 62 €9 e6eg 28 : Hs : 9 8 hy : a ms ‘U v td Nn ~ Cc ira x A Zz = Zz ca tr v i Q XdIdWOD LNAWLYV dV TO/FROM ARCTIC PIPE cr BOILER ROOM—— | PIPE HUNG UNDER STRUCTURE SPACE FOR FUTURE EQUIPMENT GLYCOL SUPPLY AND , RETURN BETWEEN \ | BUILDINGS IN ARCTIC PIPE. ——— BOILER ROOM HEAT EXCHANGER 3-CHAMBERED (LOCATED IN —! COMPLEX #1) ‘ <4 ST0/FROM <4 ARCTIC PIPE = NEW WORK COMPLEX #1 APARTMENT BUILDING — SHEET F|P pein piacram aie 18 FRYER/PRESSLEY ENGINEERING [ome-] ™ ANCHORAGE, ALASKA 60608” ”” (907)5e1-1006 5/1/90 32 Page 64 TO/FROM ARCTIC PIPE ms bo 2 BOILER ROOM oem SPACE FOR FUTURE EQUIPMENT ELEMENTARY SCHOOL F|P Foor pian . FRYER/PRESSLEY ENGINEERING ANCHORAGE, ALASKA 99503 (907)561-1666 Page 65 did OILOYV woud/OL a =} a MAN YaLVM LOH OLLSINOG Yd1108 Yd1l0d — oS oS ale oO n > oe < E Zz ud = id — ra ud = So Zz = < Gz oO =x ce Oo = Qo. a F/P E}. o 4 — ee fj [2] q O S —&] > fa] ca WY op) je Ce Ay NN - fe fx, : : gf Page 66 APARTMENTS (1) DOWN (4) ABOVE SPACE FOR FUTURE TN +—-—4 1T0/FROM ti atiGe- L—JIo— mn Te ti ———_ ARCTIC PIPE PIPING HUNG BOILER ROOM———=} BELOW STRUCTURE DENTAL CARE (1ST FLOOR ONLY) APARTMENTS ON 2ND FLOOR PROFESSIONAL BUILDING FP Floor pian . FRYER/PRESSLEY ENGINEERING ANCHORAGE, ALASKA 99603 (907)561-1666 Page 67 BOILER PROFESSIONAL BUILDING F|P pine piacram E|. FRYER/PRESSLEY ENGINEERING ANCHORAGE, ALASKA 99503 (907)561-1666 Page 68 SPACE FOR FUTURE EQUIPMENT BOILER ROOM PIPING RUN AT CEILING it TO/FROM ARCTIC PIPE LUTHERAN CHURCH FIP Foor pian . FRYER/PRESSLEY ENGINEERING ANCHORAGE, ALASKA (907)561-1666 Page 69 BOILER aoe | 1-1/2" (TYP.) 1-1/2" (TYP.) ESTIMATED ESTIMATED x Coy yyy TO/FROM ARCTIC PIPE LUTHERAN CHURCH ° F|P pine piacram . FRYER/PRESSLEY ENGINEERING ANCHORAGE, ALASKA 99603 (907)561—1666 Page 70 ARCTIC PIPE TO/FROM PUBLIC SPACE FOR WORKS GARAGE FUTURE EQUIPMENT iu BOILER ROOM TO/FROM ARCTIC PIPE POLICE/FIRE STATION F\P Foor pian . FRYER/PRESSLEY ENGINEERING ANCHORAGE, ALASKA 99603 (907)561-1666 Page 71 3—CHAMBERED HEAT EXCHANGER | CODY CON ARCTIC PIPE GARAGE HEAT EXCHANGER TO/FROM TO/FROM PUBLIC WORKS ODD NEW WORK — | POLICE/FIRE STATION PIPING DIAGRAM FRYER/PRESSLEY ENGINEERING 560 EAST 34th AVENUE SUITE 300 ANCHORAGE, ALASKA 99503 (907)561-1666 Page 72 OFFICE STORAGE Gon ARCTIC PIPE L++ {[~_ ~~? 10/FRoM POLICE /FIRE STATION SPACE FOR ROOM BOILER ROO FUTURE EQUIPMENT PUBLIC WORKS GARAGE FP Foor pian . FRYER/PRESSLEY ENGINEERING ANCHORAGE, ALASKA 99503 (907)561—1666 Page 73 BOILER 4+ i O 2” (TYP.) ] | > + (907)561—1666 La cre ce ce ee ee ee eo PUBLIC WORKS GARAGE F|P prince viacram . FRYER/PRESSLEY ENGINEERING ANCHORAGE, ALASKA 99503 TO/FROM ARCTIC PIPE TO POLICE/FIRE STATION Page 74 DWN BY: MD CKD BY: WV DATE: 5/1/90 BOILERS ~ V-— SPACE FOR | FUTURE EQUIPMENT BOILER ROOM————+} wu ci t | STORAGE ' ' ' 1} tj ! GROCERY : fq 1 ' 1 i Lit to PIPING HUNG { | UNDER STRUCTURE ————"4 i ' ‘ Lj CLOTHING 1 oj 4 | 1 | ti 1 t ENTRANCE id HANSON TRADING CO. FP Floor pian . FERYER/PRESSLEY ENGINEERING ANCHORAGE, ALASKA 99503 (907)561—1666 Page 75 NEW WORK 5 | ANCHORAGE, ALASKA 99503 HANSON TRADING COMPANY F|P pipinc oiacram E|. FRYER/PRESSLEY ENGINEERING (907)561—1666 4 4” (TYP.) x X y 4 4 TO/FROM | ARCTIC PIPE Page 76 + 7 TO/FROM | ARCTIC PIPE | | t - I = SPACE FOR STORAGE FUTURE EQUIPMENT RETAIL BONANZA AUTO F|P Floor pian . ERYER/PRESSLEY. ENGINEERING ANCHORAGE, ALASKA 99603 (907)561-1666 Page 77 BOILER TO/FROM ARCTIC PIPE DYN BY: BONANZA AUTO nN F|P pipinc piacram Con E|. FRYER/PRESSLEY ENGINEERING |i ANCHORAGE, ALASKA 99503 (907)561-1606 5/1/90 Page 78 CONCRETE RING MARKER tape CONTINUOUS OVER PIPING COMPACT TO 95% 36”6 CMP CONCRETE RING SCHEDULE 40 SERVICE LINES INSULATION 36”0 CMP CONCRETE RING SECTION A-A FIP. vacve 80x & SERVICE CONNECTION FRYER/PRESSLEY ENGINEERING 560 EAST 34th SUITE 300 ANCHORAGE, ALASKA 99503 (907)561-1666 Page 79 MARKER TAPE ROADWAY SURFACE CONTINUOUS OVER PIPING 8’ BACKFILL W/ EXCAVATED MATERIAL COMPACT TO 90% SAND BEDDING COMPACT TO 95% RIGID INSULATION BACKFILL; COMPACT TO 95% PERMAFROST inn F P tRENcH SECTION . FRYER/PRESSLEY ENGINEERING 660 EAST 34th AVENUE SUITE 300 ANCHORAGE, ALASKA 99503 (907)561-1666 Page 80 SHOULDER er HEATING PIPES NLRER 1/2 CULVERT SECTION HEATING PIPES STEEL PIPE/ CULVERT SUPPORT RIGID INSULATION SECTION B-B et SECTION A—A F'|P exeansion Loop DETAILS FRYER/PRESSLEY ENGINEERING 560 EAST 34th AVENUE SUITE 300 ANCHORAGE, ALASKA 99503 (907)561-1666 Page 81 76 NOME WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN. MAY 1, 1990 Outline Specifications The outline specifications for the major components of the system are shown below. 15010 GENERAL CONDITIONS The system shall be balanced by the Contractor to the flow specified in the construction documents. 15050 BASIC MATERIALS AND METHODS Valves: Valves for isolation use shall be gate type rated for 150 psig. Piping: Piping inside buildings shall be type "L" copper or steel schedule 40 with dielectric unions at connection points of dissimilar metals. 15120 ARCTIC PIPE Arctic Pipe: Carrier pipe shall be schedule 40 steel. Insulation shall be foamed polyurethane with no voids. Thickness of insulation to be mini- mum of 2 inches. Jacket pipe shall be steel or high density polyethylene. Arctic pipe system shall include kits or fittings for take-off connections to main loop that provide water-tight seal. 15250 MECHANICAL INSULATION Piping insulation: Pipe insulation shall be fiberglas with an all-service jacket. Minimum insulation thickness shall be 1-1/2 inches. 15750 HEAT TRANSFER Heat Exchangers: Heat exchangers shall be plate and frame type with minimum 20 gage stainless steel plates, painted steel frame with head and end support, top carrying bar, and bottom guiding bar. Ports shall be international pipe thread. Capacity shall be as specified. Accept- able manufacturers are Bell & Gossett, APV, Tranter, and Alfa Laval. Page 82 NOME WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 1, 1990 Circulation Pumps: The primary loop circulation pump shall be a base- mounted centrifugal pump. All pumps shall be compatible with a glycol heating fluid. 15900 CONTROLS Sequence of Operation: All of the pumps shall be manually switched. 16010- GENERAL This Section of the Division 16 Specifications will include the following sub- headings with appropriate explanations of the requirements covered in each. GENERAL AND SPECIAL CONDITIONS Refers the Contractor to the Project Specifications’ General and Special Conditions. DRAWINGS Explains the nature of the Drawings and how the information depicted on the Drawings should be used and interpreted when viewed in the context of the entire set of Contract Documents. DEFINITIONS Defines some of the major terms used in writing the Specifications. SUBMITTALS AND APPROVALS Defines the acceptable information considered to constitute the material submittals required for verifying the actual equipment and materials proposed for use in the Project's electrical systems. Page 83 16020- 16021- NOME WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 1, 1990 PRODUCT DELIVERY, STORAGE AND HANDLING Directs caution In the storage and handling of materials to ameliorate thelr possible damage prior to their installation. JOB CONDITIONS Advises the Contractor to visit the site to acquaint himself with the actual conditions at this Project's location. PRODUCTS Establishes general criteria and standards of quality for the Project which apply to all of the materials proposed for the Project. This sub-section also requires all electrical materials to be labeled for their intended use and environment by UL. CLEANING The Contractor is required to clean all surfaces of equipment and remove debris and unused materials In this sub-section. WORK INCLUDED This area of the Division 16 Specification lays out the generalized descrip- tions of the electrical systems and work required in this Project. It also covers which area of the Specifications will define the requirements for equipment or installations which must be coordinated with other building trades. WORK NOT INCLUDED This Section deals with those items which will definitely be provided within other areas of the Project's various disciplines. An example of such an item would be the motors provided on a fan unit (obviously specified in Division 15) which is specified complete with a motor starter, disconnect or other accessories normally found in Division 16. Page 84 16032- 16111- 16120- 16131- 16147- NOME WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 1, 1990 MANUALS AND AS-BUILT DRAWINGS Sub-paragraphs describing the required contents of the Operation and Maintenance Manuals, defining the periods of instruction for the Owner's designated personnel and the updating of information necessary to prepare record drawings of this Project’s final configuration are con- tained in this Section. CONDUIT All types of raceways and their associated appurtenances will be covered in this Section of Division 16. Galvanized rigid steel conduit, PVC-coated galvanized rigid steel conduit, intermediate metallic con- dult, electrical metallic tubing, flexible metal condult and liquid-tight flexible conduit will be specified. Fittings, couplings, grounding and where each type of raceway may be used will be specified. WIRES AND CABLES Building wires and cables for the distribution, feeders and branch circuits required for this Project are defined in this Section. This Section typically covers only wire with voltage ratings below 600 V. PULL BOXES AND JUNCTION BOXES Tne various types of pull boxes and junction boxes which will be allowed and/or required for Installing the systems defined within Division 16 are specified in this Section. DEVICE PLATES AND COVERS Surface mounted boxes shall be galvanized steel plates. Weatherproof installations will have gasketed metal plates. Page 85 NOME WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 1, 1990 16155- MOTOR STARTERS This Section will specify the motor contactors and controllers required by mechanical equipment. All controllers will be specified to have integral thermal overloads for motor overload protection. Combination starters utilizing circuit breakers or motor circuit protectors and that are UL listed for the application, will be acceptable. Combination starters utilizing fuses will not be allowed. 16161- GROUNDING This Section expands on the National Electrical Code requirements. 16164- BRANCH CIRCUIT PANELBOARDS Branch circult breakers required to connect new equipment to existing panelboards will be specified in this Section. All circuit breakers will be bolt-on molded case circult breakers of the rating and configuration necessary to serve general branch circuits and other defined loads. 16170- MOTOR AND CIRCUIT DISCONNECTS Unfused switches will be specified. Disconnects for motor applications will be required to be horsepower rated. Other disconnects will be specified to have ratings as necessary for the application. Enclosures will be NEMA 1 except where otherwise required. 16190- SUPPORTING DEVICES This Section will contain the requirements for hardware, anchors and fas- teners used to support raceways, equipment and any other electrical apparatus. Page 86 NOME WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 1, 1990 8.0 ECONOMIC DATA 8.1 8.2 Current Fuel Oil Costs Fuel oll is delivered by Bonanza Fuel in Nome. All of the buildings proposed for connection to the waste heat recovery system in this report (except the Elemen- tary School) buy their fuel from this company. The fuel oil supply company’s cur- rent rates are as follows: Amount (gallons) Cost per gallon 1-99 $1.59 100-250 $1.45 251-500 $1.41 500-999 $1.36 1000+ $1.33 Tne Nome Public Schools pay about $0.80/gallon and Bonanza Auto, since it Is also owned by the same parent owner as Bonanza fuel, pays less: about $1.10/gallon. Displaced Costs Due to Heat Recovery The calculations that model the waste heat system are shown in the Appendix at the end of this report. These calculations essentially make comparisons of the waste heat available to the waste heat demand of the connected buildings. These comparisons are made for each hour of an average day of each month of the year. Since it may not be economically feasible to connect all of the potential build- ings, the calculations were made in a logical order of building connections, that Is, the nearest building was modeled as being connected first. In this proposed order, connection starts at the Hospital and ends at the last building on Bering Street. Page 87 8.3 NOME WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 1, 1990 The results of the calculations based on the most recent fuel oll costs were as fol- lows: CONCEPT GALLONS = SSAVINGS ] 77475 $103,300 2 97 065 $129,100 3 172,600 $189,516 4 220,791 $250,500 Summary Cost Estimate The assumptions for the cost estimate was that bidding would take place in April of 1991. Prevailing local wages as defined by the Department of Labor were used. The cost estimate is presented with costs Identified for the total project, but broken out separately to show the component costs for the work at the power plant, for the arctic pipe, and for each of the connected buildings. Since there can be much more energy demand than is available with the con- nected buildings, the cost estimate is organized in an progressive alternate form. If heat recovery were to occur at the Snake River power plant Instead of at the Alaska Gold power plant, the additional estimated cost for arctic pipe and trenching would be $1,156,500. Energy Authority SIA (Supervision, Inspection, and Administration) and design costs are included in the figures shown below. CONCEPT = COST $821,900 $118,900 $2,341,300 $2,971 600 hOwWNnD-— Page 88 8.4 NOME WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 1, 1990 Estimated Component Life and Maintenance Costs The following estimates of maintenance cost were made based on the in- cremental cost of technician who is already on-site. Assumptions were made for each of the pieces of equipment regarding frequency of inspection and repair. The total yearly maintenance cost will depend on the scope of installation. The costs for all buildings connected Is shown. ttem Life (yrs) Maint, Cost (S/Y) Heat Exchangers 20 $126 (each, 13 total Circulation pumps 15 $400 (each, 3 total) Arctic Pipe 15 $5000 (total) Interior piping 15 $70 (each location, 13 total) Interior valves 16 $140 (each location, 13 total) Expansion Tank 15 $70 (each, 1 total) Air Separator 15 $35 (each, 1 total) Glycol 15 $500 (total TOTAL (base bid) $11,000/year Operating costs for electrical energy use are estimated in the appendix. For the two pumps at the power plant the electrical energy costs at $0.1675/KWH result in costs of $18,000 for Concept 1 up to $75,000 for Concept 4. Although it was not incorporated as part of this concept stage of design, the cost of electrical energy Is such that multiple speed pumps or even variable frequency drives will be economically feasible. These issues can be addressed in subsequent design stages. Page 89 NOME WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 1, 1990 9.0 FAILURE ANALYSIS 91 General The purpose of this section Is to analyze the reliability of the various components of the proposed waste heat recovery system. The analysis of the system will help guide the direction of the design to avoid systems with increased failure rates and repair costs and reduced waste heat recovery effectiveness. 9.2 Identification of Major Components The following components are those whose failure is likely in the normal course of operation and whose failure could affect the operation of the generator or waste heat recovery systems. A brief description of the component follows the identification. Circulation pump(s): This is the pump (centrifugal) that will be used to cir- culate fluid from the heat exchanger in the power plant to the user buildings through the arctic pipe. This discussion also applies to booster pumps (in-line type) that can be used in the user buildings to help overcome the additional pressure drop of the waste heat recovery system heat exchanger. A pump may also be used on the generator side of the system to help overcome the added pressure drop of the heat exchanger or the case where hydronic coils have been added to an all air system. Jacket Water Heat Exchanger: This component Is the device used to transfer heat from one liquid to another. In the design presented here, It Is a flat plate, or plate and frame type heat exchanger. The device consists of vertical plates separated by gaskets with the fluid of one system flowing in alternate plates heating (or cooling) the other fluid. There are no moving parts during operation. Stack Gas Heat Exchanger: This is a device similar in concept to the jacket water heat exchanger with the exception that the fluids being considered include both a liquid (the waste heat recovery transfer medium) and a gas - the exhaust gases from the engine. Although there are no moving parts, the heat exchanger surface is subject to very high temperatures from the exhaust gases (to 1400 degrees F). Radiator(s): These devices are part of the generation system rather than the waste heat recovery portion. They are used to provide cooling for the engines by transferring heat from the engine coolant to the atmosphere. In conjunction Page 90 9.3 NOME WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 1, 1990 with the waste heat recovery system, they would be used only when cooling Is required beyond the cooling that has occurred through the use of waste heat by the recovery system. Control Valve(s): Control valves are used to maintain a setpoint tem- perature at a specific location in a piping system. In the case of the generation system, they often are the self-contained type as manufactured by Amot. The valve operator movement is based on the expansion of wax in the valve case. Alternatives are an electrically operated valve to serve the same function. Exterior piping (arctic pipe): The arctic pipe is a pipe-within-a-pipe system used for transferring fluid between locations. The center pipe, or carrier pipe Is used for fluid transfer. The carrier pipe is insulated to reduce heat transfer. Outside the insulation is a second pipe called the jacket. This is used to protect the insulation. Interior piping/vaives: This portion of the system Is found at the power plant or at the user buildings. Its purpose is to transfer and control the fluid to the com- ponents of the system. Failure Mode and Impact For each of the components Identified above, the likely mode or modes of failure Is discussed. Tnese failure modes have been surmised based on conversations with equipment manufac- turers and based on engineering experience and judgment. In addition, the impact of failure on the generation and the waste heat recovery system is gaged as is the environmental effects. Recommended immediate actions by the system caretaker are also noted. Circulation pump(s) Failure Mode: The pump assembly can fail by the failure of Its in- dividual components. These include shaft seals, shaft bearings, motor, impeller, or casing. Impeller or casing failure is not expected to occur before the life of the com- ponent has been reached. This life is expected to be 15 years. Generator Operational Impact: Since failure of a booster pump used on the gener- ator side of the system could result in a high-temperature shut-down of the engine, its use is not recommended. The likely reason for addition of a booster pump is to over- come additional pressure drop imposed by the system by new heat recovery equip- Page 91 NOME WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 1, 1990 ment. To avoid the need for the pump, the system should be designed to keep addi- tional pressure drop below the maximum rated pressure drop of the engine mounted pump. Waste Heat System Operational Impact: Where only a single circulation pump has been installed for heat transfer services, its failure could result in complete suspension of heat recovery. Shaft seal and shaft bearing failures in their early stages would have little effect on operation but could eventually reduce heat recovery to zero after complete failure. When duplex pumps have been installed, the heat recovery will be affected only until the standby pump can be put into service which can occur minutes after the failure is noted. Environmental Impact: Minor - a shaft seal failure could result in a slow fluid leak that could reach the ground outside. Required Immediate Actions: If no significant loss of fluid has occurred (due to shaft seal failure), replacement of the pump will restore the system to service. The pump should be isolated with the valves on either side of the pump, fluid checked and proper fluid level restored as needed, and the back-up pump (if installed) started. Jacket Water Heat Exchanger Failure Mode: Since there are no moving parts, the failure of this component can occur from failure of the gaskets, or failure on the frame or plates. Since the plates are generally of stainless steel, failure is unlikely during the rated life of the equipment - or approximately 20 years. The frame is also unlikely to fail during the 20 year life. The only probable failure during the life would be the gaskets, probably exhibited as a slow leak that worsens with time. Generator Operational Impact: If the gaskets failed serving the generator cooling system fluid, enough fluid could leak out to cause a low water shut-down of the engine. Waste Heat System Operational Impact: Similar to the scenarios above, if fluid from the waste heat system were to leak from failed gaskets, the system could be in- capacitated. Page 92° » NOME WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 1, 1990 Environmental Impact: A major loss of the fiuid, most likely an ethylene glycol mix- ture could have some environmental impacts. Ethylene glycol is toxic. The problem could be reduced by using propylene glycol which is potable. The problem that often results when using propylene glycol Is failure of operating or maintenance personnel to use compatible glycol for system make up. Required Immediate Actions: lf an engine side gasket has failed, the heat ex- changer should be bypassed and manual shut-off valves used on the leaking side. If the leak occurs on the waste heat side, isolation valves should be closed and the circulation pump shut off. Stack Gas Heat Exchanger Failure Mode: Three mechanisms can lead to this component failure. The first is through operational wear. This wear is caused by the passage of hot exhaust gases over the heat exchanger surface. The fallure through this mechanism determines the life of the equipment which Is approximately 5 years. Two other forms of failure can occur: the first is through thermal shock by passage of relatively cold fluid into the exchanger which has been heated to the exhaust gas temperature. Sudden contraction will destroy the heat exchanger. The second type of failure could occur if the heat exchanger is kept at too low of a temperature allowing sulfuric and hydrochloric acids to form from the exhaust gases. Resulting rapid corrosion would result In the heat exchanger failure. Generator Operational Impact: If the heat exchanger Is located away from the generator, its failure would probably not release glycol onto the engines surface. Since the flow path of the exhaust gases would not be any more restricted after failure, no significant backpressure Is expected to develop. If the stack gas heat exchanger is used to heat fluid after passing through the main jacket water heat exchanger, no loss of en- gine coolant will occur. However, to avoid pipe contamination, the generator should be shut down. If available or designed, a bypass device that allows exhaust gases to fol- low a path away from the heat exchanger would allow generator operation with a damaged or missing heat exchanger. Waste Heat System Operational Impact: The waste heat system would be disabled by a sudden stack gas heat exchanger failure. Environmental Impact: The loss of fluid to the environment could represent a problem as outlined in previous discussions. Page 93 NOME WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 1, 1990 Required Immediate Actions: After failure of the stack gas heat exchanger, the exchanger should be isolated with valves and a bypass mechanism used for the stack gases. Fluid should be added to make up for losses, and lost fluid collected where pos- sible. Radiator(s) Failure Mode: The main component of the radiators is the heat exchanger for cooling of the liquid. The heat exchanger is expected to last the life of the radiator or 15 years. The other modes of fallure are similar to for circulation pumps: shaft bearings or motors, or controls. The controls in this case are assumed to be variable speed controls for the fan motor. Generator Operational Impact: Failure through leakage would drain the fluid and cause a low water shutdown of the generator. Failure of the fan-related hardware would result in insufficient cooling and a high-temperature shut down. Waste Heat System Operational Impact: There would be no effect on the waste heat system until generator shut down. At that time of course, no more heat would be avail- able for recovery. Environmental Impact: The only environmental impact would be If a leakage fallure occurred which Is not the highest probabllity failure. Required Immediate Actions: The radiator should be Isolated and an altemate radiator used for cooling until repairs can be made. Control Valve(s) Failure Mode: The valve casing is expected to last the life of the valve or 20 years. The most likely failure before the life is reached is that of leaking seals or seats, or failure of the operating mechanism. The seal or seat failure will normally result in a low-loss leak of fluid until repaired. The control mechanisms that can be used in this instance include Amot type operators which use the expansion characteristics of wax to operate the valve or electric motor driven operators. Although Amot-type operators fail less fre- quently than electric motor operators, they have the disadvantages of less control (which means less heat recovery) and do not indicate current control position. Page 94 NOME WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 1, 1990 Generator Operational Impact: Failure of the operators will normally result in loss of control. Often time these failures can occur at a mixing condition which may not im- mediately cause a system failure. The extreme cases would result in overheating. Waste Heat System Operational Impact: As discussed above, a failure in a mixing mode may not cause complete failure, but it is possible. Environmental Impact: Minor - only small leaks normally develop through seal and seat failures. Required Immediate Actions: The valve should be isolated as soon as the seat or seal failure is discovered. If the failure is an electric operator, the valve could be manually positioned to an acceptable position until the operator can be replaced. When an Amot-type vaive Is used, manual bypass valves can be used. Exterior piping (arctic pipe) Failure Mode: The only failure mode likely to interfere with the system operation would be a fluid leak at a joint. Generator Operational Impact: None. Waste Heat System Operational Impact: A significant leak would shut down the sys- tem. Environmental Impact: The leaking fluid could drain the entire piping system. Required Immediate Actions: The pump would be turned off, the system drained as much as possible, and the leaking line isolated as close to the leak as possible. Interior piping/valves Failure Mode: Interior piping joints will normally last the length of the pipe life - about 20 years - unless physically damaged. The valves may suffer the same failures as men- tioned above for control valves. Generator Operational Impact: A fluid leak would generally be small but it is pos- sible that enough fluid would leak until a low water shut down occurred. Waste Heat System Operational Impact: Same as for Generation system effect. Page 95 NOME WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 1, 1990 Environmental Impact: Minor. Required Immediate Actions: Isolate the leaking valve, shut off pump ff fluid loss Is significant. 9.4 Failure Frequency and Cost Frequencies of failure have been estimated based on conversations with manufacturers and on engineering judgment. Assumptions made regarding the repair include: On-site operator's skill are that of a “caretaker.” Skilled preventive maintenance Is performed 3 times yearly. A one day weather delay is included for all winter repair trips. Travel to site for repair is via jet, and then charter. Skilled mechanics are mobilized from Anchorage, Fairbanks, or Juneau as ap- propriate. Costs are based on $43/hour labor costs. Travel time is 12 hours round trip. Travel cost is $600 round trip. Subsistence costs are $100 per day. Ohon> 32S Circulation pump(s) Most common failure: Shaft seal, shaft bearings, or motor. Frequency of Occurrence: 0.1 per year Repair Cost: $1900/occurrence Estimate of Down Time: 2 days after discovery Effects of System Life on Frequency: Increase in probability only. Page 96 NOME WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 1, 1990 Jacket Water Heat Exchanger Most common failure: Gasket failure. Frequency of Occurence: 0.1 per year Repair Cost: $1900/occurrence Estimate of Down Time: 9 days Effects of System Life on Frequency: Increasing probability. Stack Gas Heat Exchanger Most common failure: Operator error - damage to heat exchanger Frequency of Occurrence: _1 per year Repair Cost: $6600/occurrence Estimate of Down Time: 30 days Effects of System Life on Frequency: No effect due to frequent expected replacement Radiator(s) Most common failure: Motor failure Frequency of Occurrence: 0.1 per year Repair Cost: $1800/occurrence Estimate of Down Time: 5 days Effects of System Life on Frequency: Increased probabllity. Page 97 NOME WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 1, 1990 Control Vaive(s) Most common failure: Electric operator (seal for Amot valve) Frequency of Occurrence: 0.33/year (0.1 for Amot valve) Repair Cost: $1800/occurrence Estimate of Down Time: 3 days Effects of System Life on Frequency: Increasing likelinood due to wear Exterior piping (arctic pipe) Most common failure: Accidental damage Frequency of Occurrence: 0.1 per year Repair Cost: $1800/occurrence Estimate of Down Time: 21 days Effects of System Life on Frequency: None Interior piping/valves Most common fallure: Valve seat/seal failure Frequency of Occurence: 0.25 per year Repair Cost: $1800/occurrence Estimate of Down Time: 2 days Effects of System Life on Frequency: Increased likelinood due to wear Page 98 NOME WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 1, 1990 9.5 Design Decisions Impact on current concept design from the above failure analysis includes the recommenda- tion that stack gas heat exchangers not be used. NJUS has experienced problems with stack gas heat recovery units before. For the 600 KW generator engine operating at Beltz school, a turbocharger was irreparably damaged by the use of a stack gas heat recovery device. There is not a demonstrated record of dependable service for this equipment. This recommendation not to use stack gas heat exchangers is also due to the sensitivity of the equipment to operator error and the delay that could be encountered in returning the system to service. Other recom- mendations include design of duplex pumps so that damaged pumps will not halt service for any length of time. This type of approach can also be extended to spare parts stock so that some failures may be attended to during the preventive maintenance visits to reduce costs. To avoid compromising the reliability of the generation system, booster pumps of the generator side should be avoided. A way to avoid the need for the pumps is to design the heat ex- changer and piping system to be as low as possible and to be less than the maximum recom- mended external pressure drop as listed by the engine manufacturer. Although the failure rate of the electric motor operators on control valves is higher than for self- contained Amot-type valves, the additional control and heat recovery may provide incentive for their use. To keep an increased level of reliability of building heating systems, it is also recommended that any building connected the waste heat recovery system use a heat exchanger. In the event of Q distribution piping failure, the building’s heating system would continue to operate without in- terruption. Page 99 NOME WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 1, 1990 10.0 CONCLUSIONS AND RECOMMENDATIONS The final economics will be completed by the Alaska Energy Authority so a definitive conclusion is not made at this time conceming the feasibility of a waste heat installation at Nome. Some conclusions that can be made are that the project is technically feasible, that the people and agencies in the community seem quite enthusiastic about the project, and that if the economics prove acceptable, a waste heat system for the community can be recommended. Two graphs follow this page that illustrate the current waste heat situation in Nome. The first graph entitled "Heat Available Vs. Heat Required” shows the relationship between these two quantities for each month of a year. The highest line represents the heat available from the power plant in terms of equivalent gallons of fuel oil. Each of the other three lines represent a construction option: the concept 1, the concept 3, and the concept 4. The graph shows that the Concept 4 is the only concept which comes close to using all of the energy available. The second graph is entitled “Fuel Oil Displaced” and shows the amount of recovered energy in equivalent gallons of fuel oll for three of the construction options for the year. A similar shape as was shown in the previous graph Is displayed. Page 100 LoL ebeg NOME WASTE HEAT RECOVERY HEAT AVAILABLE VS. HEAT REQUIRED FUEL OIL EQUIVALENT (GALLONS) 60,000 50,000 Perens eec creer ccrctecrteecetecetneereseeneemnetneeenereeeeeseeeestey 3 40,000 [on tts wget evel Paraiso eal eel oct cell SU eee coal level ewes le Acalll msde 30,000, 20,000 Fa tte srsceceeceneeatneenstneeneenneinennenenneeiss coe leer 10,000; 5/01/90 Oo 1 1 JAN FEB MAR APR MAY JUNE JULY AUG SEP OCT NOV DEC MONTH OF THE YEAR LEGEND —— HEAT AVAILABLE —— HEAT REQ. - 1 —*— HEAT REQ. - 3 —S— HEAT REQ. - 4 ZOL e6eg NOME WASTE HEAT RECOVERY FUEL OIL DISPLACED FUEL OIL EQUIVALENT (GALLONS) 30,000 25,000 20,000 15,000 10,000 5,000 0 JAN FEB MAR APR MAY JUNE JULY AUG SEP OCT NOV DEC MONTH OF THE YEAR LEGEND Hl CONCEPT 1 CONCEPT 3 HHH CONCEPT 4 5/01/90 NOME WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 1, 1990 APPENDIX 1. Calculations 2. Contact Names 3. Cost Estimates 4, Raw Data NOME WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 1, 1990 Calculations NOME WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 1, 1990 WASTE HEAT RECOVERY CALCULATION METHOD Input Before the calculation of recovered waste heat can take place, the user must Input In- formation about power production, fuel use, and system heat loss. The information Is for each month of a year. The year is assumed to be either an average year or a represen- tative year. The power production information must include the amount of power produced for each month of a year and the amount of heat rejected to the jacket water for each KWH of power produced. The power production is from historical records and the heat rejection data is from the manufacturer of the engine/generators being used for power production. The fuel use data Is for each of the potential waste heat user buildings. It Is fuel oll use for each month of the “average” year. It Is also assumed that the fuel oil use reported here is only for heating energy that can be displaced by waste heat recovery. It would not include fuel oil used by a separate fuel oil-fired water heater. The information ideally should be based on historical information but can also be estimated on a monthly basis for yearly fuel oil use. The system heat loss is a number that represents the energy that is rejected to the jacket water, but Is lost or used before it can be used by the end user buildings. Examples of this system loss can include: heat loss of the generator cooling system piping, heat loss from the arctic pipe, and heat recovery in the power plant for space heating or fuel oll heating. This figure must be estimated based on available information. Assumptions The most important assumptions made in this model are the diumal variation of the heat demand, and the power production. The figures shown in the calculations represent a “typical* pattem for rural environments. The heating demand follows an approximate sine curve with minimum demand at solar noon, and maximum demand at solar mid- night. The diurnal variation for power plant production is less regular. The variation as- sumed has peaks in the moming (around 8:00) and near noon and at 6:00 pm. The lowest power production occurs near midnight. NOME WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 1, 1990 When calculating the energy demand for the buildings based on their fuel oil use, it is as- sumed that each gallon of fuel oil corresponds to 100,000 BTU. This represents ap- proximately a 71% efficient boiler or fumace. Actual efficiencies will vary. Calculations The heat available is calculated by dividing the monthly power production by the num- ber of days in the month - yielding the power production on an average day, then by multiplying that figure by the hourly power production variation for each hour. This is the power produced for each hour of the average day of the month. This figure is multiplied by the manufacturer's factor for heat rejected to the jacket water. The result is the gross heat avaliable at the power plant on an hourly basis. The system heat loss Is subtracted from the gross amount, leaving the amount available for building use. The heat required by the buildings is accomplished in a similar manner. The sum of all the buildings fuel use is multiplied by 100,000 BTU/gallon and adjusted to yield the hourly heat demand for the average day of the month. The heat recovered is just the smaller number of the heat available and the heat demand; if the heat available is larger than the heat demand, all of the heat available will be used. If the reverse is true and much more heat is available, then all of the build- ing heat demand requirements will be met. The number of gallons displaced also as- sumes that each 100,000 BTU corresponds to one gallon of fuel oll. NOME WASTE HEAT RECOVERY ESTIMATION PAGE 1 CONCEPT 1 WASTE HEAT UTILIZATION SIMULATION WORK SHEET. Location: NOME Date: May 1, 1998 Heat rate: 2706 Btu/kwh produced System loss: 1,424,008 Btu/hour (FOR ALL SYSTEMS CONNECTED) Total Gen.: 23,519,549 kwh/year Assumed diurnal heat Power plant monthly generation: demand variation: SeeeSseaeee Monthly JAN FEB MAR APR MAY JUN JUL AUG SEP ocT NOV DEC CHECKSUM Fraction:8.899683 6.07966 6.68989 8.68649 6.68378 6.07612 0.88241 8.68384 6.66352 0.07160 6.07659 6.18644 1 Winter Summer Hour Kwh: 2342646 1873616 2114248 2034338 1978499 1790328 1938466 1972868 1494127 1684845 1801594 2503580 23519549 Diurnal 6.0494 6.6494 1 variation 8.038 6.038 6.038 8.038 6.045 6.045 6.045 6.045 6.045 6.045 6.038 6.038 6.0477 6.6477 2 6.036 6.036 6.036 0.056 6.040 6.040 6.040 0.040 0.046 8.040 6.036 0.036 8.0460 6.0466 3 6.034 6.034 6.034 8.034 8.036 6.036 6.036 6.036 0.036 8.036 0.034 6.034 8.0443 6.0443 4 6.034 6.034 6.034 6.034 6.035 8.035 0.035 8.035 0.035 8.035 0.034 6.034 8.0428 6.6428 5 6.033 6.033 6.033 8.033 8.035 8.035 6.035 6.035 6.035 8.035 8.033 6.033 6.8414 6.6414 6 6.034 6.034 6.034 0.034 8.038 6.038 6.038 6.038 6.038 6.038 0.034 6.034 6.0481 6.0401 7 8.038 8.038 0.038 0.038 8.038 0.038 6.038 8.038 6.038 6.038 6.038 6.038 8.0398 6.0398 8 0.042 6.042 6.042 6.042 6.040 6.040 6.040 0.040 6.040 6.040 6.042 0.042 6.0381 6.0381 9 0.042 6.042 6.042 6.042 6.045 6.045 6.045 0.045 6.045 6.045 6.042 0.042 8.0374 6.0374 10 6.047 8.047 6.047 0.047 8.047 0.047 6.047 6.047 6.047 6.047 6.047 6.047 6.0376 6.0376 1 6.048 6.048 6.048 0.048 6.040 6.040 0.040 6.046 6.046 8.046 0.048 6.048 6.0367 6.0367 12 6.047 6.047 6.047 0.047 6.048 6.048 6.048 6.048 6.048 0.048 6.047 6.047 0.0367 6.0367 13 6.045 6.045 6.045 8.045 68.050 6.050 6.058 6.058 8.058 0.056 8.045 6.045 6.0376 6.0376 14 6.047 6.047 6.047 6.047 6.052 6.052 6.052 6.052 6.052 6.052 6.047 6.047 0.0374 6.0374 15 6.048 6.048 6.048 0.048 6.050 6.050 6.058 6.050 6.056 8.056 8.048 6.048 6.0381 6.0381 16 8.048 6.048 6.048 0.048 6.050 0.050 6.050 6.058 6.050 8.056 6.048 6.048 6.0398 6.0398 17 8.049 6.049 6.049 8.049 6.645 6.045 6.045 6.045 6.045 6.045 6.049 6.049 6.0481 6.0401 18 8.046 6.046 6.046 6.046 6.047 6.047 6.047 6.047 6.647 6.047 6.046 6.046 6.0414 6.0414 19 8.043 6.043 6.043 0.043 6.050 6.050 6.050 6.258 6.058 8.058 8.043 6.043 6.0428 6.6428 26° 6.038 6.038 6.038 6.038 6.045 6.045 6.045 6.045 6.045 8.045 8.038 6.038 6.0443 6.0443 21 6.038 6.038 6.038 6.038 6.041 6.041 6.041 6.041 6.041 6.641 6.038 6.038 0.0466 6.0460 22 6.041 6.041 0.041 0.041 6.041 6.041 6.041 6.041 6.041 0.641 6.041 6.041 6.0477 6.0477 23 6.045 6.045 6.045 6.045 6.041 6.041 6.041 6.041 6.041 6.041 6.045 6.045 8.0494 6.8494 24 8.040 6.040 0.040 6.040 6.043 6.043 6.043 6.043 6.043 6.043 6.040 6.048 Building use per month, gallons of fuel oil N.S.H.C. HOSPITAL 8361 7845 8125 6449 4095 2687 1988 2136 3879 5237 6652 8457 65,025 HOSPITAL WAREHOUSE 41 386 400 317 282 128 98 105 152 258 327 416 3,208 COMMUNITY HEALTH SERVICES 1215 1148 1181 937 595 379 289 3168 447 761 967 1229 9,458 RECREATION CENTER 6 6 6 8 6 6 6 6 6 6 6 6 6 APARTMENTS o 6 6 6 6 6 6 6 6 6 6 6 6 ELEMENTARY SCHOOL 0 6 8 8 6 6 6 6 8 6 6 8 6 NOME WASTE HEAT RECOVERY ESTIMATION PROFESSIONAL BUILDING LUTHERAN CHURCH POLICE/FIRE STATION PUBLIC WORKS GARAGE HANSON’S STORE BONANZA AUTO 1 2 9987 JAN 6477211. 6061358. 3 5645505. 4 5 6 e 8 9 aT] 1 12 13 14 15 16 17 18 19 26 ai 22 23 24 ZB wo msnanwewn = 5645505. 5437578. 5645505. 6477211. 7308918. 7368918. 8348551. 8556478. 8348551. 7932698. 8348551. 8556478. 8556478. 8764404. 8148624. 7516844. 6477211. 6477211. 7168991. 7932698. 6893065. 1. 7E+88 eooaoaas Boeoaas 9371 9766 FEB MAR Heat available per hour by month (BTU) PAGE 2 8 6 6 6 8 6 8 6 6 6 6 6 7703 = 4892 APR MAY 3114 2375 2545 JUN JUL AUG 4895296 5786895 5437376 6446336 5726718 6318393 6452682 4543667 5382215 4652382 7626627 4562762 5331585 5876251 5571854 4932194 5458127 5577424 3880592 4554857 4332572 6575604 4238187 4956275 4715126 4872268 4296574 4769915 4877282 3358133 3956972 4812762 6131182 4230107 4956275 4715126 4697372 4137669 4597861 4762246 3217518 3807586 4812762 6131182 4063816 4768619 4534563 4697372 4137669 4597861 4762246 3217518 3807506 3852858 5968971 4230187 4956275 4715126 5222861 4614384 4895296 5766895 5437376 5222061 4614384 5560485 6457516 6159626 5571854 4932194 5560485 6457516 6159626 6446336 5726718 6391972 7395791 7662439 6796128 6844528 6558269 7583447 7243002 5571854 4932194 6391972 7395791 7862439 6971625 6203432 6059377 7628481 6701314 7320818 6521242 6391972 7395791 7062439 7670618 6839052 6558269 7583447 7243002 7328818 6521242 6558269 7583447 7243082 7320818 6521242 6724566 7771182 7423564 6446336 5726718 6225674 7268136 6881877 6796128 6644528 5726782 6645171 6348189 7320818 6521242 4895296 5766895 5437376 6446336 5726718 4895296 5786895 5437376 5746758 5091098 5394188 6269861 5979864 5746758 5091698 6859377 7628481 6761314 5746756 5891698 5227891 6882285 5798581 6896543 5468988 1E+88 —2E+08 1E+O8 = 1E+88 Heat demand by hour by month (BTU) JAN 1622329. 1565461. 1589654. 1455945. 1405335. 1358768. 1317118. 1281138. 1251522. 1228813. 1213434. FEB MAR 1522263 1576682 1468983 1521415 1416538 1467177 1366142 1414979 1318654 1365794 1274959 1320537 1235876 1286051 1282117 1245891 1174328 1216308 1153819 1194238 1138598 1179292 APR MAY 1251386 794676. 12867444 766828. 1164408 739484. 1122974 713175. 1883939 688385. 1048821 665574. 1015898 645169. 988145. 627548. 965302. 613641. 947787. 681917. 935925. 594385. 1E+68 JUN 505858. 488119. 476718. 453971. 438191. 423671. 410682. 399465. 396231. 383158. 378355. 3678 SEP 6256 ocT 7946 = 16102 NOV DEC 5114821 5227353 3615363 4255915 4012762 6131182 5114821 5227353 3615363 4255915 4652382 78620027 5458127 5577424 3880592 4554857 5292661 7988872 6318393 6452682 4543667 5382215 5292881 7968872 6662586 6882674 4888896 5681158 6891525 9819928 5458127 5577424 3880592 4554857 6251438 9242139 6834553 6977789 4941511 5758629 6891525 9619928 7178659 7327781 5266741 6849572 5771715 8575505 7522766 7677852 5471976 6348515 6891525 9619928 7178659 7327781 5266741 6649572 6251436 9242139 7178659 7327781 5206741 6849572 6251438 9242139 6318393 6452682 4543667 5302215 6411334 9464358 66625068 6802674 4888896 5601158 5931628 8797717 7178659 7327781 5266741 6849572 5451986 8131683 6318393 6452602 4543667 5382215 4652382 7620627 5752466 4813207 4764329 4652382 76200627 5752468 4813287 4784329 5132096 7686668 5752466 4813287 4764329 5771715 8575505 6182531 4278437 5083272 4972191 7464449 5630181 5630181 5630181 5974287 1E+08 JUL 385804. 372281. 359089. 346237. 334201. 323127. 313220. 304666. 297623. 292223. 288565. 1E+68 AUG 413428. 398928. 384767. 371828. 358123. 346256. 335648. 326474. 318927. 313148. 369221. 1E+88 SEP 597469. 576526. 555973. 536193. 517555. 508405. 485063. 471816. 460989. 452545. 446882. 1E+68 ocT 1016256 988627. 945668. 912824. 880322. 851151. 825056. 882523. 783971. 769746. 766113. 1E+68 = 2E+08 NOV DEC 1298786 1641818 1245535 1583488 1261132 1527637 1158399 1472718 1118133 1421517 1681882 1374414 1647938 1332277 1619317 1295898 995754. 1265933 977686. 1242963 965458. 1227487 CONCEPT 1 meoeoaaas 77,675 ANNUAL 5.23E+1B NOME WASTE HEAT RECOVERY ESTIMATION 12 13 14 15 16 17 18 19 28 21 22 23 24 Ooyrnurun = RPRBFRSSTRBTFAS=ZSw 1205673. 1205673. 1213434. 1228813. 1251522. 1281138. 1317118. 1358768. 1405335. 1455945. 1589654. 1565462. 1622329. 32830374 1131387 1171749 1131387 1171749 1138596 1179293 1153019 1194238 1174328 1216368 1282117 1245891 1235871 1288051 1274959 1328537 1318654 1365794 1366142 1414979 1416538 1467177 1468984 1521415 1522263 1576682 3E+67 «© 3E+87 PAGE 3 929939. 929939. 935925. 947787. 965302. 988145. 1615898 1648021 1683939 1122974 1164408 1287445 1251306 3E+87 590583. 598583. 594385. 681917. 613041. 627548. 645169. 665574. 688385. 713175. 739484. 766828. 794676. 2E+87 Heat delivered by hour by month (BTU) JAN 1622329. 1565461. 1589654. 1455945. 1405335. 1358768. 1317118. 1281138. 1251522. 1228813. 1213434. 1205673. 1285673. 1213434. 1228813. 1251522. 1281138. 1317118. 1358768. 1405335. 1455945. 1589654. 1565462. 1622329. 32830374 FEB MAR 1522263 1576682 1468983 1521415 1416538 1467177 1366142 1414979 1318654 1365794 1274959 1328537 1235876 1286051 1282117 1245891 1174328 1216368 1153619 1194238 1138596 1179292 1131387 1171749 1131387 1171749 1138596 1179293 1153819 1194238 1174328 1216368 1282117 1245891 1235871 1288051 1274959 1320537 1318654 1365794 1366142 1414979 1416538 1467177 1468964 1521415 1522263 1576682 3E+O7 «= 5E+07 APR 1251386 1287444 1164406 1122974 1083939 1048821 1615898 988145. 965382. 947787. 935925. 929939. 929939. 935925. 947787. 965382. 988145. 18158968 1648821 1883939 1122974 1164486 1287445 1251306 3E+67 MAY 794676. 766828. 739484. 713175. 688385. 665574. 645169. 627548. 613841. 681917. 594385. 590583. 590583. 594385. 661917. 613041. 627548. 645169. 665574. 688385. 713175. 739484. 766828. 794676. 2E+67 FUEL OIL CONSUMPTION DISPLACED (GALLONS) JAN 9987 FEB MAR 9371 9786 APR 7783 MAY 4892 375935. 375935. 378355. 383158. 396231. 399465. 410682. 423671. 438191. 453971. 478718. 488119. 505858. 1E+87 JUN 585858. 488119. 476718. 453971. 438191. 423671. 416682. 399465. 396231. 383156. 378355. 375935. 375935. 378355. 383158. 396231. 399465. 418682. 423671. 438191. 453971. 478718. 488119. 505856. 286728. 286728. 288565. 292223. 297623. 304666. 313228. 323127. 334261. 346237. 359809. 372281. 385804. 7867363 JUL 385804. 372281. 3590809. 346237. 334281. 323127. 313228. 384666. 297623. 292223. 288565. 286726. 286728. 288565. 292223. 297623. 384666. 313226. 323127. 334201. 346237. 359009. 372281. 385804. 307243. 387243. 309221. 313148. 318927. 326474. 335648. 346256. 358123. 371826. 384787. 398928. 413426. 8366206 AUG 413428. 398928. 384787. 371628. 358123. 346256. 335646. 326474. 318927. 313146. 369221. 307243. 307243. 369221. 313148. 318927. 326474. 335646. 346256. 358123. 371828. 384787. 398928. 413428. 1E+87 7867363 8366286 JUN 3114 JUL 2375 AUG 2545 444623. 444823. 446882. 452545. 460969. 471816. 485063. 500405. 517555. 536193. 555973. 576526. 597469. 1E+87 SEP 597469. 576526. 555973. 536193. 517555. 586485. 485063. 471816. 468969. 452545. 446882. 444623. 444623. 446882. 452545. 460989. 471816. 485063. 508485. 517555. 536193. 555973. 576526. 597469. 1E+87 SEP 3678 755251. 755251. 768113. 769746. 783971. 862523. 825057. 851151. 880322. 912824. 945669. 988627. 1616258 2E+67 ocT 1816258 988627. 945668. 9126824. 880322. 851151. 825056. 882523. 783971. 769746. 768113. 755251. 755251. 766113. 769746. 783971. 882523. 825857. 851151. 880322. 912624. 945669. 988627. 1616256 2E+87 ocT 6256 959275. 959275. 965458. 977686. 995754. 1819317 1847938 1881682 1118133 1158466 1261132 1245535 12987868 3E+87 NOV 1298788 1245535 1261132 1158399 1118133 1881882 1647938 1819317 995754. 977686. 965458. 959275. 959275. 965458. 977686. 995754. 1819317 1847938 1881682 1118133 1158408 1261132 1245535 1296788 3E+87 NOV 7946 1219556 1219556 1227467 1242963 1265933 1295898 1332277 1374414 1421518 14727168 1527837 1583488 16410168 3E+67 DEC 1641816 1583488 1527837 1472716 1421517 1374414 1332277 1295898 1265933 1242963 1227487 1219556 1219556 1227467 1242963 1265933 1295898 1332277 1374414 1421518 1472716 1527837 1583488 1641616 3E+87 DEC 16162 CONCEPT 1 ANNUAL 7. 77E+69 ANNUAL 7. 77E+89 ANNUAL 77,675 NOME WASTE HEAT RECOVERY ESTIMATION PAGE 1 CONCEPT 2 WASTE HEAT UTILIZATION SIMULATION WORK SHEET. Location: NOME Date: May 1, 1998 Heat rate: 2706 Btu/kwh produced System loss: 1,528,008 Btu/hour (FOR ALL SYSTEMS CONNECTED) Total Gen.: 23,519,549 kwh/year Assumed diurnal heat Power plant monthly generation: demand variation: SS Monthly JAN FEB MAR APR MAY JUN JUL AUG SEP ocT NOV DEC CHECKSUM Fraction:8.699683 8.87966 6.88989 6.68649 6.88378 6.07612 6.68241 6.68384 6.86352 6.07168 6.07659 8.18644 1 Winte Summer Hour Kvh: 2342648 1873616 2114248 2034338 1970499 1798328 1938466 1972868 1494127 1684845 1881594 2583588 23519549 Diurnal 6.0494 6.0494 1 variation 8.038 6.038 6.038 6.038 6.045 6.045 6.045 6.045 6.045 6.045 6.038 6.038 6.0477 6.6477 2 0.036 6.036 6.036 0.036 6.046 6.040 6.040 6.046 6.040 6.040 6.036 6.036 6.0468 6.0468 3 6.034 6.034 6.034 6.034 6.036 6.036 6.036 6.036 6.036 6.036 6.034 6.034 6.0443 6.8443 4 6.034 6.034 6.034 8.034 6.035 6.035 6.035 6.035 6.035 6.035 6.034 8.034 6.0428 6.8428 5 6.033 6.033 6.033 6.033 6.035 6.035 6.035 6.035 6.035 6.035 6.033 06.033 6.0414 6.0414 6 6.034 6.034 6.034 6.034 6.038 6.038 6.038 6.038 6.038 6.038 8.034 6.034 6.0401 6.0461 7 0.038 0.038 0.038 0.038 6.038 6.038 6.038 6.038 0.038 0.038 6.038 0.038 6.0398 6.0398 8 0.042 6.042 6.042 6.042 6.040 6.040 6.046 6.040 6.040 6.046 6.042 6.642 6.6381 6.0381 9 8.042 6.042 6.042 6.042 6.045 6.045 6.045 6.045 6.045 6.045 6.042 6.042 8.0374 6.0374 16 6.047 0.047 6.047 6.047 6.047 0.047 6.047 6.047 6.047 6.047 6.047 8.047 6.0376 6.0376 1 0.048 6.048 6.048 6.048 6.040 6.040 6.040 0.046 6.040 6.040 6.048 6.048 6.0367 6.0367 12 0.047 6.047 6.047 6.047 6.048 6.048 6.048 6.048 6.048 6.048 6.047 6.047 6.0367 6.0367 13 0.045 6.045 6.045 6.045 6.056 6.050 6.050 6.056 8.050 6.050 6.045 6.845 6.0376 6.0378 14 6.047 6.047 6.047 6.047 6.052 6.052 6.052 6.052 6.052 6.052 6.047 6.847 8.0374 8.0374 15 6.048 6.048 6.048 6.048 6.056 6.050 6.050 6.056 6.050 6.050 0.048 6.648 6.0381 6.0381 16 6.048 6.048 6.048 6.048 6.056 6.050 6.050 6.056 6.050 6.050 6.048 6.648 0.0398 6.0398 17 6.049 6.049 6.049 6.049 6.045 6.045 6.045 6.045 6.045 6.045 6.049 6.849 6.0401 6.0481 18 6.046 6.046 6.046 6.046 6.047 6.047 6.047 6.047 6.047 6.047 0.046 6.046 6.0414 6.0414 19 6.043 6.043 6.043 6.043 6.050 6.056 6.056 6.050 6.050 6.058 8.043 6.043 8.0428 6.0428 28 . 6.038 6.058 6.038 6.038 6.045 6.045 6.045 6.045 6.045 6.045 6.038 6.038 6.0443 6.0443 21 6.038 6.058 6.038 6.038 6.041 6.041 6.041 6.041 6.041 6.041 6.038 6.038 6.0460 6.0460 22 6.041 6.041 6.041 6.041 6.041 6.041 6.041 6.041 6.041 6.041 6.041 6.841 6.0477 6.8477 23 8.045 6.045 6.045 6.045 6.041 6.041 6.041 6.041 6.041 6.041 8.045 6.045 6.0494 6.0494 24 8.046 6.040 6.040 6.046 6.043 6.043 6.043 6.043 6.043 6.043 6.040 6.040 Building use per month, gallons of fuel oil N.S.H.C. HOSPITAL 8361 7845 8125 6449 4095 2687 1988 2138 3079 5237 6652 8457 65,025 HOSPITAL WAREHOUSE 4i1 386 406 317 262 128 98 165 152 258 327 416 3,208 COMMUNITY HEALTH SERVICES 1215 1148 1181 937 595 379 289 316 447 761 967 1229 9,458 RECREATION CENTER 1521 1427 1478 1173 745 474 362 388 568 953 12168 1539 11,838 APARTMENTS 972 912 945 758 476 303 231 248 358 689 773 983 7,566 ELEMENTARY SCHOOL 8 6 6 6 6 6 6 8 6 6 8 6 8 NOME WASTE HEAT RECOVERY ESTIMATION PROFESSIONAL BUILDING LUTHERAN CHURCH >OLICE/FIRE STATION >UBLIC WORKS GARAGE HANSON’S STORE 30NANZA AUTO sv Sw uu ars ~ oynwurun = ve S a Le} nN s XN i) nD = =>FBwwmwnsawerun = PAGE 2 Baa esa Boeoaanaea Beeoaass Beno oa Beoeaansas Baaaaas Baeoaoaans sea eae aaa aanaes eo aaa ananes meeoaaaoe Beoeoaaanas 12488 «11718 «12129 9626 = 6113 3891 2968 = 3181 4596 = 7818 += 9929 12624 Heat available per hour by month (BTU) JAN 6381211. 5965358. 5549585. 5549505. 5341578. 5549505. 6381211. 7212918. 7212918. 8252551. 8460478. 8252551. 7836698. 8252551. 8460478. 8460478. FEB MAR APR MAY JUN JUL AUG SEP ocT NOV DEC 4799296 5618895 5341376 6350336 5630718 6222393 6356602 4447667 5286215 4556382 6924827 4466782 5235585 4980251 5475854 4836194 5362127 5481424 3784592 4458857 4236572 6479664 4134187 4866275 4619126 4776268 4280574 4673915 4781282 3254133 3866972 3916762 6835182 413417 4860275 4619126 4601372 4841669 4581861 4686246 3121518 3711588 3916762 6835182 3967816 4672619 4438563 4661372 4041669 4501861 4606246 3121518 3711588 3756858 5812971 41341B7 4860275 4619126 5126861 4518384 5818821 5131353 3519363 4159915 3916762 6835182 4799296 5618895 5341376 5126661 4518384 5618021 5131353 3519363 4159915 4556382 6924027 5464485 6361516 6063626 5475854 4836194 5362127 5481424 3784592 4458857 5196801 7812872 5464485 6361516 6863626 6350336 5638718 6222393 6356602 4447667 5206215 5196881 7812872 6295972 7299791 6966439 6788128 5948528 6566500 6706674 4712896 5505158 5995525 8923928 6462269 7487447 7147682 5475854 4836194 5362127 5481424 3784592 4458857 6155438 9146139 6295972 7299791 6966439 6875825 6187432 6738553 6881789 4845511 5654629 5995525 8923928 5963377 6924481 6605314 7224818 6425242 7682659 7231781 5118741 5953572 5675715 8479585 6295972 7299791 6966439 7574618 6743852 7426766 7581852 5375978 6252515 5995525 8923928 6462269 7487447 7147662 7224818 6425242 7682659 7231781 5116741 5953572 6155438 9146139 6462269 7487447 7147882 7224818 6425242 7682659 7231781 5118741 5953572 6155438 9146139 8668404. 8044624. 7420844. 6381211. 6381211. 7004991. 7836698. 6797065. 1. TE+88 6628566 7675162 7327564 6350336 5630718 6129674 7112136 6785877 6768128 5948528 5630782 6549171 6244189 7224818 6425242 4799296 5618895 5341376 6350336 5630718 4799296 5618895 5341376 5656756 4995098 5298188 6173861 5883864 5658758 4995098 5963377 6924481 6605314 5658758 4995898 5131891 5986205 5762581 6000543 5312988 1E+O8 = 2E+08 «=1E+08 «= EHO8 = 1E+08 Heat demand by hour by month (BTU) JAN 2027382. 1956239. 1886500. 1819384. 1756141. 1697958. 1645893. 1680942. 1563932. 1535555. 1516337. FEB MAR 1962228 1976284 1835542 19812268 1778106 1833442 1787138 1768214 1647796 1766756 1593188 1650195 1544344 1599682 1582166 1555915 1467448 1519947 1448813 1492367 1422781 1473696 APR MAY 1563686 993828. 1588875 958212. 1455084 924052. 1403317 891177. 1354536 860199. 1389652 831696. 1269566 886197. 1234829 784179. 1266283 766051. 1184395 752151. 1169572 742738. JUN 632069. 689914. 588171. 567245. 547527. 529384. 513154. 499139. 487681. 478753. 472762. 6222393 6356682 4447667 5206215 6315334 9368356 6566508 6766674 4712896 5585158 5835626 8761717 7882659 7231781 5118741 5953572 5355986 8035683 6222393 6356682 4447667 5286215 4556382 6924827 5534181 5656468 3917287 4688329 4556382 6924627 5534181 5656466 3917287 4668329 5836096 7590668 5534181 5656466 3917287 4668329 5675715 8479505 5878287 6666531 4182437 4987272 4876191 7368449 1E+68 = 1E+08 1E+68 1E+08 1E+68 2E+08 JUL 482134. 465233. 448648. 432686. 417646. 483807. 391427. 388736. 371935. 365186. 360616. AUG 516734. 498621. 480846. 463738. 447619. 432786. 419518. 408068. 398627. 391394. 386496. SEP 746593. 726422. 694746. 676623. 646732. 625382. 666131. 589577. 575948. 565497. 558426. OcT NOV 1269987 1612987 1225471 1556376 1181783 1500886 1139739 1447489 1186121 1397174 1663667 1356877 1831857 1369461 1662897 1273698 979713. 1244253 961936. 1221676 949898. 1206387 DEC 2050694 1978811 1968268 1848377 1776484 1717541 1664884 1619414 1581978 1553273 1533834 CONCEPT 2 97, B65 ANNUAL 5.15E+18 NOME WASTE HEAT RECOVERY ESTIMATION 12 13 14 15 16 17 18 19 21 22 23 24 oryrnuner wun = SPNRPAPD 2 @ eae wwe = @ FWUsPeooartrSurunsaw 1586639. 1586639. 1516338. 1535555. 1563932. 1600942. 1645893. 1697958. 1756141. 1819384. 1886500. 1956239. 2627382. 41825641 1413681 1464264 1413681 1464264 1422781 1473691 1448813 1492367 1467448 1519947 1582166 1555915 1544344 1599683 1593188 1650195 1647798 17667568 1787131 1768214 1778166 1833443 1835542 1961228 1982226 1976284 4E+87 = 4E+87 PAGE 3 1162891 737987. 1162891 737987. 1169572 742738. 1184395 752151. 1286283 766851. 1234829 784179. 1269561 866197. 1389652 831696. 1354537 860199. 1403317 891177. 1455084 924852. 1568875 958212. 1563686 993626. 3E+O7 © 2E+87 Heat delivered by hour by month (BTU) JAN 2027382. 1956239. 1886508. 1819384. 1756141. 1697958. 1645893. 1680942. 1563932. 1535555. 1516337. 1506639. 1506639. 1516338. 1535555. 1563932. 1688942. 1645895. 1697956. 1756141. 1819384. 1886508. 1956239. 2027382. 41825641 FEB MAR 1962226 1976284 1835542 1961226 1778166 1833442 1767138 1768214 1647796 1766758 1593188 1658195 1544344 1599682 1582166 1555915 1467448 1519947 1448813 1492367 1422781 1473698 1413681 1464264 1413681 1464264 1422781 1473691 1440813 1492367 14674468 1519947 1582166 1555915 1544344 1599683 1593188 1658195 1647796 1766758 1767131 1768214 1778186 1833443 1835542 19812268 1982228 1978284 4E+O7? «9 4E+07 APR MAY 1563686 993628. 1588875 958212. 1455684 924852. 1403317 891177. 1354536 866199. 1369652 831696. 1269568 886197. 1234829 784179. 1266283 766651. 1184395 752151. 1169572 742738. 1162891 737987. 1162891 737987. 1169572 742738. 1184395 752151. 1266283 766851. 1234829 784179. 1269581 886197. 1309652 831696. 1354537 868199. 1403317 891177. 1455084 924052. 1508875 958212. 1563686 993828. 3E+B7 «= 2E+87 FUEL OIL CONSUMPTION DISPLACED (GALLONS) JAN 12488 FEB MAR 1718 = 12129 APR MAY 9626 6113 469738. 469738. 472762. 478753. 487601. 499139. 513154. 529384. 547527. 567245. 588171. 689914. 632869. 1E+87 JUN 632069. 689914. 588171. 567245. 547527. 529384. 513154. 499139. 487601. 478753. 472762. 469738. 469738. 472762. 478753. 487601. 499139. 513154. 529384. 547527. 567245. 588171. 689914. 632069. 1E+87 JUN 3891 358309. 358389. 360616. 365186. 371935. 380736. 391427. 403807. 417646. 432687. 448648. 465233. 482134. 9756738 JUL 482134. 465233. 448648. 432686. 417646. 403887. 391427. 380736. 371935. 365186. 360616. 358309. 358309. 360616. 365186. 371935. 388736. 391427. 403807. 417646. 432687. 448648. 465233. 482134. 9756738 JUL 2968 384823. 384023. 386496. 391394. 398627. 408066. 419518. 432786. 447619. 463739. 480846. 498621. 516734. 1E+87 AUG 516734. 498621. 480846. 463738. 447619. 432786. 419518. 408068. 398627. 391394. 386496. 384823. 384623. 386496. 391394. 398627. 408060. 419518. 432786. 447619. 463739. 480846. 498621. 516734. 1E+87 AUG 3181 554848. 554848. 558426. 565497. 575948. 589577. 686132. 625382. 646733. 676623. 694748. 726422. 746593. 2E+87 SEP 746593. 726422. 694746. 676623. 646732. 6253082. 686131. 589577. 575948. 565497. 558426. 554848. 554848. 558426. 565497. 575948. 589577. 686132. 625382. 646733. 676623. 694746. 728422. 746593. 2E+87 SEP 4596 943822. 943822. 949898. 961936. 979713. 1882897 1831857 1863667 1166121 1139739 1181783 1225471 1269987 3E+O7 ocT 1269987 1225471 1181783 1139739 1168121 1663667 1631857 1662897 979713. 961936. 949898. 943822. 943822. 949898. 961936. 979713. 1662897 1631057 1863667 1106121 1139739 1181783 1225471 1269987 3E+O7 ocT 7818 1198671 1198671 1266387 1221676 1244253 1273698 1389461 1358877 1397174 1447489 1588886 1556378 1612967 3E+67 NOV 1612967 1556376 1560886 1447489 1397174 1356877 1389461 1273698 1244255 1221676 1266387 1198671 1198671 1266387 1221676 1244253 1273698 1389461 1358877 1397174 1447489 1568886 1556378 16129867 3E+87 9929 1524823 1524623 1533834 1553273 1581978 1619414 1664884 1717541 1776485 1848377 1988268 1978811 2858694 4E+67 DEC 2050694 1978811 1988268 1848377 1776404 1717541 1664884 1619414 1581978 1553273 1533834 1524823 1524823 1533834 1553273 1581978 1619414 1664884 1717541 1776485 1840377 1988268 1978811 2058694 4E+87 DEC 12624 CONCEPT 2 ANNUAL 9.71E+89 ANNUAL 9. 71E+89 ANNUAL 97,665 NOME WASTE HEAT RECOVERY ESTIMATION PAGE 1 CONCEPT 3 WASTE HEAT UTILIZATION SIMULATION WORK SHEET. Location: NOME Date: May 1, 1998 Heat rate: 2766 Btu/kwh produced System loss: 1,643,008 Btu/hour (FOR ALL SYSTEMS CONNECTED) Total Gen.: 23,519,549 kwh/year Assumed diurnal heat Power plant monthly generation: demand variation: ae Monthly JAN FEB MAR APR MAY JUN JUL AUG SEP OcT NOV DEC CHECKSUM Fraction:8.099603 8.87966 6.08989 0.88649 6.68378 6.67612 0.88241 6.68384 6.86352 6.07160 6.67659 6.10644 1 Winte Summer Hour Kvh: 2342648 1873616 2114248 2834338 1970499 1790328 1938466 1972668 1494127 1684845 1881594 2583580 23519549 Diurnal 6.8494 6.0494 1 variation 6.038 68.038 68.038 6.038 6.045 6.045 6.045 6.045 6.045 6.045 6.038 9.038 8.0477 6.6477 2 8.036 8.836 8.036 6.036 6.046 6.040 6.046 6.046 6.040 6.046 6.036 6.036 6.0468 6.6460 3 8.034 8.034 8.034 6.034 6.036 6.036 6.036 6.036 6.036 6.036 6.034 6.034 8.0443 6.0443 4 6.034 8.034 8.034 8.034 8.035 6.035 6.035 6.035 6.035 6.035 8.034 0.034 8.8428 6.6428 5 8.033 6.033 8.033 8.033 8.035 6.035 6.035 6.035 6.035 6.035 8.033 6.033 8.0414 6.8414 6 6.034 6.034 8.034 6.034 6.038 6.038 8.038 8.038 6.038 6.038 0.034 6.034 6.0481 6.0401 7 6.038 6.038 8.038 8.038 8.038 6.038 0.038 6.038 6.038 6.038 08.038 0.938 6.0398 6.0398 8 6.042 6.042 6.042 8.042 6.046 6.040 0.040 0.040 6.040 6.040 6.042 6.042 6.0381 6.0381 9 8.042 6.042 8.042 8.042 8.045 6.045 6.045 6.045 6.045 6.045 6.042 0.042 8.0374 6.0374 16 6.047 8.047 6.047 0.047 6.047 0.047 6.047 6.047 6.047 8.847 6.047 6.047 8.0378 6.0376 " 8.048 6.048 6.048 6.048 6.040 6.040 6.048 6.048 6.040 6.040 6.048 6.048 8.0367 6.0367 12 0.047 6.047 6.047 6.047 6.048 6.048 6.048 6.048 6.048 6.048 6.047 6.047 6.0367 6.0367 13 8.845 6.045 6.045 6.045 6.056 6.050 8.050 8.050 8.050 6.050 8.045 6.045 8.0370 6.0376 14 6.047 6.047 6.047 6.047 8.052 6.652 6.052 6.852 6.052 6.852 6.047 6.047 8.0374 6.0374 15 6.048 6.048 6.048 8.048 8.056 6.050 6.058 6.058 6.050 6.050 6.048 6.048 6.0381 6.0381 16 8.048 6.048 6.048 6.048 8.050 6.050 6.058 6.058 6.058 6.050 6.048 6.048 6.0398 6.0398 17 8.049 6.049 6.049 6.049 8.045 6.045 6.045 6.845 6.045 6.045 6.049 6.049 6.0401 6.6461 18 8.046 6.046 6.046 8.046 6.047 6.047 6.047 6.047 6.047 6.047 6.046 0.046 8.0414 6.6414 19 6.043 6.043 8.043 8.043 6.050 6.050 6.058 6.058 6.058 6.050 6.043 6.843 6.6428 6.6428 26 6.038 6.038 6.038 6.038 6.045 6.045 6.045 6.045 6.045 6.045 6.038 6.038 6.0443 6.0445 21 6.038 6.038 6.038 6.038 6.041 6.041 6.041 6.041 6.041 6.0641 6.038 6.038 6.0460 6.0468 22 6.041 6.041 8.041 6.041 6.041 6.041 6.041 6.041 6.041 6.041 6.041 6.641 6.0477 6.6477 23 6.045 6.045 6.045 6.045 6.041 6.041 6.041 6.041 6.041 6.041 6.045 6.845 6.0494 6.6494 24 6.048 6.040 6.046 6.046 6.043 6.043 6.043 6.043 6.043 6.043 6.040 6.046 Building use per month, gallons of fuel oil N.S.H.C. HOSPITAL 8361 7845 8125 6449 4095 2667 1988 2138 3879 5237 6652 8457 65,625 HOSPITAL WAREHOUSE 411 386 400 317 202 128 98 105 152 258 327 416 3,208 COMMUNITY HEALTH SERVICES 1215 1148 1181 937 595 379 289 316 447 761 967 1229 9,458 RECREATION CENTER 1521 1427 1478 1173 745 474 362 388 568 953 1216 1539 11,838 APARTMENTS 972 912 945 758 476 303 231 248 358 689 773 983 7,568 ELEMENTARY SCHOOL 9712 9112.8 9437 7498. = 4756 3628 2309 2474 3576 6083 7726 9822 15 525 NOME WASTE HEAT RECOVERY ESTIMATION PROFESSIONAL BUILDING LUTHERAN CHURCH POLICE/FIRE STATION PUBLIC WORKS GARAGE HANSON'S STORE BONANZA AUTO PAGE 2 22192 20822 21566 «617116 §=—_ 18869 6919 5277 5655 8172 13981 17655 22446 Heat available per hour by month (BTU) FEB MAR APR MAY JUN JUL AUG SEP ocT NOV DEC 4676296 5487895 5218376 6227336 5587718 6899393 6233602 4324667 5083215 4433382 6861627 4343782 5112585 4857251 5352854 4713194 5239127 5358424 3661592 4335857 4113572 6356604 4811187 4737275 4496126 4653268 4877574 4550915 4658282 3131133 3737972 3795762 5912182 4811187 4737275 4496126 4478372 3918669 4378861 4483246 2998518 3588566 3793762 5912182 3844818 4549619 4315563 4478372 3918669 4378861 4483246 2998518 3588506 3633858 5689971 4811187 4737275 4496126 5803861 4395384 4895021 5808353 3396363 4836915 3793762 5912182 4676296 5487895 5218376 5003661 4395384 4895621 5008353 3396363 4036915 4433382 6801627 5341485 6238516 5948626 5352854 4713194 5239127 5358424 3661592 4335857 5873001 7689872 5341485 6238516 5948626 6227336 5587718 6699393 6233662 4324667 5683215 5673001 7689872 6172972 7176791 6843439 6577128 5825528 6443588 6583674 4589896 5382158 5872525 8800928 6339269 7364447 7624882 5352854 4713194 5239127 5358424 3661592 4335857 6032438 9023139 6172972 7176791 6843439 6752825 5984432 6615553 6758769 4722511 5531629 5872525 8800928 5848377 6881481 6482314 7181818 6362242 6959659 7188781 4987741 5838572 5552715 8356505 6172972 7176791 6843439 7451618 6628052 7303766 7458852 5252976 6129515 5872525 8866928 6339269 7364447 7824882 7181818 6362242 6959659 7168781 4987741 5830572 6032436 9623139 6339269 7364447 7624882 7181818 6362242 6959659 7168781 4987741 5830572 6032436 9623139 6585566 7552182 7204564 6227336 5587718 6099393 6233602 4324667 5683215 6192334 9245358 6006674 6989136 6662877 6577128 5825528 6443586 6583674 4589896 5382158 5712628 8578717 5587782 6426171 6121189 7181818 6362242 6959659 7168781 4987741 5830572 5232986 7912883 4676296 5487895 5218376 6227336 5587718 6699393 6233682 4324667 5683215 4433382 6861627 4676296 5487895 5218376 5527756 4872898 5411181 5533466 3794287 4485329 4433382 6861627 5175188 6858861 5760064 5527758 4872698 5411181 5533468 3794287 4485329 4913096 7467666 5840377 6861481 6482314 5527756 4872698 5411181 5533468 3794287 4485329 5552715 8356505 5088891 5863285 5579581 5877543 5189988 5755287 5883531 4859437 4784272 4753191 7245449 1E+88 = 1E+88 1E+O8 1E+08 1E+88 1E+88 E08 1E+O8 1E+O8 1E+08 2E+08 JAN 1 6258211. 2 5842358. 3 5426505. 4 5426505. 5 5218578. 6 5426565. 7 6258211. 8 7089918. 9 7689918. 16 8129551. 11 8337478. 12 8129551. 13 7713698. 14 8129551. 15 8337478. 16 8337478. 17 8545404. 18 7921624. 19 7297844. 28 6258211. 21 6258211. 22 6881991. 23 7713698. 24 66740865. 1. 7E+68 Heat demand by hour by month (BTU) JAN FEB MAR APR MAY JUN JUL AUG SEP ocT NOV DEC 1 3684959. 2 3478595. 3 3354585. 4 3235239. 5 3122780. 6 3819383. 7 2926736. 8 2846883. 9 2788993. 18 2730532. 11 2696359. 3382416 3583269 2780392 3263847 3380469 2682952 3147493 3259957 2587287 3035515 3143978 2495239 2929998 3834691 2408583 2832918 2934133 2328695 2746057 2844178 2257306 2671858 2766499 2195651 2609311 2762546 2144893 2561965 2653588 2105974 2529983 2620308 2079618 1765684 1123958 857217. 1763715 1884553 827169. 1642978 1845889 797681. 1584526 1008679 769302. 1529447 973617. 742568. 1478767 941355. 717955. 1433438 912495. 695943. 1394282 887573. 676936. 1362856 867055. 661287. 1337335 851322. 649288. 1320599 840668. 641163. 918621. 886421. 854820. 824408. 795751. 769383. 745795. 725426. 768657. 695798. 687098. 1327493 2258135 2867956 3646219 1286968 2178981 2767428 3518469 1235295 2181381 2668763 3392988 1191347 2826543 2573817 3272268 1149935 1956899 2484349 3158522 1111838 1891282 2462627 3053861 1677743 1833298 2328385 2960234 1648389 1783228 2264794 2879386 1824875 1742085 2212438 2812823 1085493 1716396 2172293 2761784 992989. 1688991 2145187 2727221 CONCEPT 3 172,598 ANNUAL 5. B4E+18 NOME WASTE HEAT RECOVERY ESTIMATION 12 2679113. 13 2679113. 14 2696368. 15 2738532. 16 2788993. 17 2846803. 18 2926736. 19 3819303. 26 3122788. 21 3235239. 22 3354585. 23 3478595. 24 3684959. 72952805 PAGE 3 2513728 2663539 2066316 2513728 2603539 2066316 2529983 2620388 2679618 2561965 2653588 2105974 2689311 2762546 2144893 2671859 2766499 2195651 2746857 2844178 2257361 2832918 2934134 2328695 2929999 3834692 2488503 3035515 3143978 2495239 3147493 3259958 2587287 3263848 3380476 2682932 3382411 3583269 2780393 TE+67 «= 7E+87 «= 6E+07 1312152 835291. 1312152 835291. 1328599 848668. 1337335 851322. 1362056 867855. 1394282 887573. 1433431 912495. 1478767 941355. 1529447 973617. 1584526 1068679 1642978 1845889 1783715 1684553 1765664 1123958 4E+07 = 2E+07 Heat delivered by hour by month (BTU) JAN 1 3684959. 2 3478595. 3 3354585. 4 3235239. 5 3122788. 6 3819383. 7 2926736. 8 2846803. 9 2788993. 16 2730532. 11 2696359. 12 2679113. 13 2679113. 14 2696368. 15 2738532. 16 2788993. 17 2846803. 18 2926736. 19 3619383. 28 3122780. 21 3235239. 22 3354585. 23 3478595. 24 3684959. 72952005 FEB MAR APR 3382416 3503269 2780392 3263847 3388469 2682932 3147493 3259957 2587287 3035515 3143978 2495239 2929998 3034691 2488583 2832918 2934133 2328695 2746057 2844178 2257308 2671858 2766499 2195651 2689311 2762546 2144893 2561965 2653588 2105974 2529983 2620388 2679618 2513726 2603539 2066316 2513726 2603539 20666316 2529983 2620308 2079618 2561965 2653508 2185974 2689311 2762546 2144893 2671859 2766499 2195651 2746857 2844178 2257381 2832916 2934134 2328695 2929999 3034692 2488583 3035515 3143978 2495239 3147493 3259958 2587287 3263848 3380476 2682932 3382411 3503269 2780393 7E+87 7E+87 «6 E+87 MAY JUN 1765684 1123958 1783715 1684553 1642978 1645889 1584526 1608679 1529447 973617. 1478767 941355. 1433436 912495. 1394282 887573. 1362858 867855. 1337335 851322. 1328599 848668. 1312152 835291. 1312152 835291. 1328599 848668. 1337335 851322. 1362858 867655. 1394282 887573. 1433431 912495. 1478767 941355. 1529447 973617. 1584526 1688679 1642978 1845889 1703715 1884553 4E+67 «= 2E+87 FUEL OIL CONSUMPTION DISPLACED (GALLONS) JAN 22192 FEB MAR APR 20822 21566 = 17116 MAY JUN 16869 6919 637062. 637862. 641163. 649288. 661287. 676936. 695944. 717955. 742568. 769382. 797681. 827169. 857217. 2E+87 JUL 857217. 827169. 797681. 769382. 742568. 717955. 695943. 676936. 661287. 649288. 641163. 637662. 637662. 641163. 649288. 661287. 676936. 695944. 717955. 742568. 769302. 797681. 827169. 1765684 1123958 857217. 2E+87 JUL 5277 682695. 682695. 687698. 695798. 708657. 725426. 745795. 769383. 795751. 824488. 854820. 886421. 918621. 2E+87 AUG 918621. 886421. 854828. 824408. 795751. 769383. 745795. 725426. 768657. 695798. 687696. 682695. 682695. 687698. 695798. 768657. 725426. 745795. 769383. 795751. 824488. 854828. 886421. 918621. 2E+87 AUG 5655 986558. 986558. 992989. 1685493 1824875 1648369 1877743 1111838 1149935 1191347 1235295 1286968 1327493 3E+B7 SEP 1327493 1288968 1235295 1191347 1149935 1111838 1877743 1648369 1624875 1885495 992989. 986558. 986558. 992989. 1865493 1624675 1848389 1877743 1111836 1149935 1191347 1235295 1288968 1327493 3E+B7 SEP 8172 1678188 1678188 1688991 1718396 1742805 1783228 1833298 1891282 1956188 2626543 2181381 2178981 2258135 5E+O7 oct 2258135 2178981 2101301 2026543 1956899 1891282 1833298 1783228 17420085 1718396 1688991 1678188 1678188 1688991 1718396 1742605 1783228 1833298 1891282 1956188 2026543 2101381 2178981 2258135 5E+O7 13961 2131387 2769777 2131387 2789777 2145187 2727221 2172293 2761784 2212438 2812823 2264794 2879386 2328385 2960234 2402628 3853861 2484349 3158522 2573817 3272268 2668763 33929868 2767426 3518418 2867958 3646228 6E+87 = 7E+87 NOV DEC 2867958 3646219 2767428 3518469 2668763 3392988 2573817 3272268 2484349 3158522 2462827 3053861 2328385 2966234 2264794 2879386 2212438 2812823 2172293 2761784 2145187 2727221 2131387 2769777 2131387 2769777 2145187 2727221 2172293 2761784 2212438 2812823 2264794 2879386 2328385 2968234 2482628 3853861 2484349 3158522 2573817 3272268 2668763 3392988 2767426 3518416 2867956 3646226 6E+67 = 7E+87 NOV DEC 17655 22446 CONCEPT 3 ANNUAL 1, 73E+16 ANNUAL 1. 73E+18 ANNUAL. 172,598 NOME WASTE HEAT RECOVERY ESTIMATION PAGE 1 CONCEPT 4 WASTE HEAT UTILIZATION SIMULATION WORK SHEET. Location: NOME Date: May 1, 1998 Heat rate: 2788 Btu/kwh produced System loss: 1,748,006 Btu/hour (FOR ALL SYSTEMS CONNECTED) Total Gen.: 23,519,549 kwh/year Assumed diurnal heat Power plant monthly generation: demand variation: <<< saan Monthly JAN FEB MAR APR MAY JUN JUL AUG SEP ocT NOV DEC CHECKSUM Fraction:6.899683 0.07966 0.08989 6.68649 6.08378 6.67612 6.68241 6.08384 8.66352 6.07160 6.67659 6.18644 1 Winte Summer Hour Kwh: 2342648 1873616 2114248 2034338 1976499 1790328 1938466 1972668 1494127 1684045 1881594 2503586 23519549 Diurnal 6.0494 6.8494 1 variation 8.038 6.038 6.038 8.038 6.045 6.045 8.045 6.045 6.045 6.045 0.038 6.038 6.0477 6.0477 2 6.036 68.036 68.056 8.036 6.040 6.040 6.040 0.040 6.040 6.040 6.036 6.036 0.0468 6.0460 3 6.034 6.034 6.034 6.034 6.036 0.036 6.036 6.036 6.036 6.036 6.034 6.034 8.0443 6.0443 4 8.034 6.034 6.034 6.034 6.035 6.035 8.035 6.035 6.035 6.035 6.034 0.034 0.0428 6.0428 5 6.033 6.033 6.033 6.033 6.035 6.035 6.035 6.035 6.035 6.035 6.033 6.033 6.0414 6.0414 6 6.034 6.034 6.034 6.034 6.038 6.038 8.038 6.038 6.038 6.038 6.034 0.034 0.0401 6.0481 7 6.038 6.038 6.038 6.038 6.038 6.038 6.038 6.038 6.038 6.038 6.038 6.038 8.0398 8.0398 8 6.042 6.042 6.042 6.042 6.046 0.040 0.046 6.046 6.040 6.040 6.042 6.042 6.0381 6.0381 9 0.042 6.642 6.042 6.042 6.045 0.045 6.045 6.045 6.045 6.045 6.042 6.042 8.0374 6.8374 a) 6.047 6.047 0.047 6.047 6.047 6.047 8.047 6.047 6.047 6.047 6.047 8.047 6.0378 6.6376 1 8.048 6.648 6.048 6.048 6.046 0.046 6.040 6.040 6.046 6.046 6.048 6.048 6.0367 6.0367 12 0.047 6.047 6.047 6.047 6.048 6.048 6.048 6.048 6.648 6.048 6.047 6.047 0.0367 6.0367 13 6.045 6.045 6.045 8.045 6.056 0.050 6.050 6.050 6.056 6.050 6.045 6.045 6.0378 6.0370 14 6.047 6.047 6.047 6.047 6.052 6.052 6.052 6.052 6.052 6.052 6.047 6.047 8.0374 6.0374 15 6.048 6.048 6.048 6.048 6.656 6.050 6.050 6.056 6.050 6.050 6.048 6.048 6.0381 6.0381 16 6.048 6.048 6.048 6.048 6.056 6.050 6.050 6.056 6.056 6.058 6.048 6.048 6.6398 6.0398 17 8.049 6.049 6.049 6.049 6.045 6.045 6.045 6.045 6.045 6.045 6.049 6.049 6.0401 6.6401 18 6.046 6.046 6.046 6.046 6.047 6.047 6.047 6.047 6.047 6.047 6.046 6.046 0.0414 6.0414 19 0.043 6.043 6.043 0.043 6.056 6.056 6.050 8.050 6.056 6.058 6.043 6.643 6.0428 6.6428 26 . 8.838 6.038 6.038 6.038 6.045 6.045 6.045 6.045 6.045 6.045 6.038 6.638 6.0443 8.0443 21 8.038 6.038 6.038 6.038 6.641 6.041 6.041 6.041 6.041 6.041 6.038 6.038 6.0468 6.0460 22 0.041 6.041 6.041 6.041 6.041 6.041 6.041 6.041 6.041 6.041 6.041 6.041 6.8477 6.8477 23 6.045 6.045 6.045 6.045 6.041 6.041 6.041 6.041 6.041 6.041 6.045 6.845 8.0494 8.0494 24 0.045 6.040 6.040 8.040 6.043 6.043 6.043 0.043 6.043 06.043 6.040 6.040 Building use per month, gallons of fuel oil N.S.H.C. HOSPITAL 8361 7845 8125 6449 4095 2607 1988 2138 3879 5237 6652 8457 65,825 HOSPITAL WAREHOUSE 41 386 408 317 262 128 98 105 152 258 327 416 3,200 COMMUNITY HEALTH SERVICES 1215 1148 1181 937 595 379 289 318 447 761 967 1229 9,458 RECREATION CENTER 1521 1427 1478 1173 745 474 362 388 568 953 1218 1539 11,836 APARTMENTS 972 912 945 758 476 303 231 248 358 689 773 983 7,568 ELEMENTARY SCHOOL 9712 9112.8 9437 7498 = 4756 «= 3828 )=— 2389 2474 3576 6883 = 7726 = 9822, 75,525 NOME WASTE HEAT RECOVERY ESTIMATION PROFESSIONAL BUILDING 636 LUTHERAN CHURCH 1331 POLICE/FIRE STATION . 1618 PUBLIC WORKS GARAGE 798 HANSON'S STORE 707 BONANZA AUTO 1728 TOTAL 28394 PAGE 2 597.8 618 491 312 198 151 162 1249.8 = 1293 1826 652 415 316 339 956.8 998 785 499 318 242 259 742 768 618 387 246 188 201 664 687 545 346 221 168 188 1614 1671 1326 842 536 409 438 26644 27593 «21899 13987 8853 6751 7234 Heat available per hour by month (BTU) JAN 1 6161211. 2 5745358. 3 5329565. 4 5329585. 5 5121578. 6 5329585. 7 6161211. 8 6992918. 9 6992918. 16 8032551. 11 8240478. 12 8832551. 13 7616698. 14 8832551. 15 8240478. 16 8248478. 17 8448404. 18 7824624. 19 7280844. 26 6161211. 21 6161211. 22 6784991. 23 7616698. 24 6577665. 1. 7E+68 FEB MAR APR MAY JUN JUL AUG 4579296 5398895 5121376 6130336 5410718 6002393 6136682 4246762 5815585 4768251 5255854 4616194 5142127 5261424 3914187 4648275 4399126 4556268 3980574 4453915 4561282 3914187 4648275 4399126 4381372 3821669 4281861 4386246 3747816 4452619 4218563 4381372 3821669 4281861 4386246 39141B7 4648275 4399126 4986061 4298384 4798821 4911353 4579296 5390895 5121376 4986061 4298384 4798021 4911353 5244485 6141516 5843626 5255854 4616194 5142127 5261424 5244485 6141516 5843626 6138336 5410718 6802393 6136602 6075972 7679791 6746439 6486128 5728528 6346500 6486674 6242269 7267447 6927882 5255854 4616194 5142127 5261424 6875972 7679791 6746439 6655825 5887432 6518553 6661789 5743377 6704481 6385314 7064818 6205242 6862659 7611781 6875972 7879791 6746439 7354618 6523052 7286766 7361852 6242269 7267447 6927002 7664818 6205242 6862659 7611781 6242269 7267447 6927062 7664818 6205242 6862659 7011781 6488566 7455182 7187564 6130336 5418718 6662393 6136682 5989674 6892136 6565877 6488128 5728528 6346580 6486674 5418782 6329171 6824189 7664818 6205242 6862659 7611781 4579296 5396895 5121376 6130336 5418718 6682393 6136682 4579296 5398895 5121376 5438756 4775898 5314181 5436468 5078188 5953861 5663064 5430756 4775098 5314181 5436460 5743377 6704481 6385314 5438756 4775098 5314181 5436460 4911891 5766285 5482581 5780543 5892988 5658287 5786531 1E+O8 (1E+68 = 1E+08 = 1E+88 = EHS = 1E+O8 = 1E+O8 Heat demand by hour by month (BTU) JAN 1 4612437. 2 4450758. 3 4292691. 4 4139391. 5 3995504. 6 3863168. 7 3744671. 8 3642399. 9 3558197. 1B 3493634. 11 3449911. FEB MAR APR MAY JUN JUL AUG 4328160 4482319 3557363 2259189 1438117 1696668 1175128 4176446 4325281 3432667 2179921 1387767 1058219 1133929 4027558 4171616 3316294 2182268 1338236 1620494 1693585 3884269 4822618 3192524 2627418 1298626 984187. 1054601 3749258 3882798 3881558 1956944 1245763 949977. 1817943 3625814 3754129 2979439 1892898 1284483 918498. 984212. 3513877 3639033 2888094 1834089 1167555 898538. 954038. 3417988 3539647 2889217 1783998 1135668 866022. 927981. 3338896 3457820 2744276 1742757 1169414 846002. 986529. 3278312 3395078 2694481 1711135 1689284 830651. 890080. 3237284 3352589 2660768 1689728 1875652 828256. 878941. 234 399 506 644 498 834 1059 1346 375 638 818 1838 291 495 629 799 268 443 563 715 633 1677 1368 1739 10455 17787-22598 = 28719 SEP ocr NOV DEC 4227667 4986215 4336382 6764827 3564592 4238857 4016572 6259684 3034133 3640972 3696762 5815182 2981518 3491586 3696762 5815182 2981518 3491588 3536858 5592971 3299363 3939915 3696762 5815182 3299363 3939915 4336382 6704827 3564592 4238857 4976801 7592872 4227667 4986215 4976661 7592872 4492896 5285158 5775525 8783928 3564592 4238857 59354368 8926139 4625511 5434629 5775525 8763928 4898741 5733572 5455715 8259585 5155976 6832515 5775525 8783928 4898741 5733572 5935436 8926139 4898741 5733572 5935438 8926159 4227667 4986215 6695334 9148358 4492896 5285158 5615626 8481717 4898741 5733572 5135986 7815883 4227667 4986215 4336382 6764627 3697287 4388329 4336382 6764627 3697287 4388329 4816096 7378668 3697287 4388329 5455715 8259505 3962437 4687272 4656191 7148449 1E+88 «= 1E+88 «= TE+O8 = 2E +88 SEP ocT NOV DEC 1698352 2889392 3669611 4665231 1638826 2788111 3548981 4561762 1580397 2688716 3414747 4341219 1524172 2593666 3293261 4186771 1471198 2562924 3178785 4841236 1422441 2419987 3673452 3967326 1378831 2345794 2979225 3787533 1341173 2281727 2897859 3684891 1310169 2228988 2838868 3598925 1286396 2188535 2779582 3533622 1278297 2161146 2744717 3489399 CONCEPT 4 4,948 16,356 7,928 6,146 5,499 13,373 226 ,826 ANNUAL 4. 95E+1B NOME WASTE HEAT RECOVERY ESTIMATION 12 3427845. 13 3427845. 14 3449911. 15 3493634. 16 3558197. 17 3642408. 18 3744672. 19 3863108. 28 3995584. 21 4139392. 22 4292891. 23 44586758. 24 4612437. 93339967 PAGE 3 3216577 3331145 2643741 1678912 3216577 3331145 2643741 1678912 3237284 3352589 2660760 1689726 3278312 3395878 2694481 1711135 3338896 3457820 2744276 1742757 341798 3539647 2889217 1783998 3513877 3639034 2888095 1834696 3625014 3754129 2979448 1892898 3749256 3882798 3881558 1956944 3884278 4822619 3192524 2027418 4027558 4171811 3316295 2162268 4176446 4325262 3432667 2179921 4328168 4482326 3557363 2259118 9E+87 «= 9E+87 = 7E+B7 «— SE+87 Heat delivered by hour by month (BTU) JAN 1 4612437. 2 4456758. 3 4292691. 4 4139391. 5 3995504. 6 3863168. 7 3744671. 8 3642399. 9 3558197. 18 3493634. 11 3449911. 12 3427845. 13 3427845. 14 3449911. 15 3493634. 16 3558197. 17 3642408. 18 3744672. 19 3863168. 26 3995584. 21 4139392. 22 4292691. 23 4450758. 24 4612437. 93339967 FUEL OIL JAN 28394 FEB MAR APR 4328168 4482319 3557363 4176446 4325261 3432667 3914187 41716168 3316294 3884269 4622618 3192524 3747816 3882798 3681558 3625014 3754129 2979439 3513877 3639033 2888094 3417988 3539647 2889217 3338896 3457828 2744276 3278312 3395878 2694481 3237284 3352589 2668768 3216577 3331145 2643741 3216577 3331145 2643741 3237284 3352589 2660768 3278312 3395078 2694481 3338896 3457826 2744276 3417988 3539647 28869217 3513877 3639034 2888095 3625614 3754129 2979448 3749258 3882798 3681558 3884276 40622619 3192524 4027558 4171611 3318295 4176446 4325202 3432667 4328166 4482326 3557363 9E+B7 9E+87 = 7E+87 MAY 2259189 2179921 2162268 2627418 1956944 1892898 1834689 1783998 1742757 1719135 1689728 1678912 1678912 1689728 1711135 1742757 1783998 1834098 1892898 1956944 2027418 2162268 2179921 2259118 5E+87 CONSUMPTION DISPLACED (GALLONS) FEB 26609 MAR 27593 APR 21899 MAY 13987 1868772 815069. 1868772 815089. 1075652 820256. 1889284 830651. 1189414 846082. 1135668 866822. 1167555 890338. 1284483 918498. 1245763 949977. 1298626 984188. 1338236 1826494 1387787 1858219 1438117 1696668 3E+87 «=. 2E+87 JUN JUL 1438117 1696666 1387767 1658219 1338236 1626494 1298626 984187. 1245763 949977. 1264483 918498. 1167555 898338. 1135668 866822. 1169414 846882. 1689284 836651. 1875652 826256. 1868772 815069. 1868772 815809. 1875652 826256. 1089284 838651. 1189414 846862. 1135668 866822. 1167555 898338. 1284483 918498. 1245763 949977. 1298626 984188. 1338236 1026494 1387787 1858219 1438117 1696668 3E+O7 «= 2E+87 JUN JUL 8853 6751 873319. 873319. 878941. 896680. 986529. 927982. 954838. 984212. 1617943 1054681 1693585 1133929 1175126 2E+87 AUG 1175126 1133929 1693585 1854681 1617943 984212. 954038. 927981. 986529. 898688 . 878941. 873319. 873319. 878941. 898080. 986529. 927982. 954038. 984212. 1617943 1854681 1693585 1133929 1175126 2E+87 AUG 7234 1262172 2147322 2727161 3467680 1262172 2147322 2727161 3467080 1278297 2161146 2744717 3489399 1286396 2188535 2779562 3533622 1318169 22289868 2836868 3598925 1341173 2281727 2897859 3684691 1378831 2345794 2979225 3787533 1422441 2419987 3873453 3907326 1471191 2562924 3178785 4841237 1524172 2593868 3293261 4186771 1588397 2688717 3414747 4341219 1638821 2788111 3548982 4561782 1698353 2889393 3669612 4665232 3E+O7 «6 6E+87 = 7E+87 = SE+07 SEP oct NOV DEC 1698352 2889392 3669611 4665231 1638826 2788111 3546981 4561762 1588397 2688716 3414747 4341219 1524172 2593866 3293261 4186771 1471198 2582924 3178785 4641236 1422441 2419987 3673452 3967326 1378831 2345794 2979225 3787533 1341173 2281727 2897859 3684891 1318169 2228986 2838868 3598925 1286396 2188535 2779562 3533622 1276297 2161146 2744717 3489399 1262172 2147322 2727161 3467688 1262172 2147322 2727161 3467686 1276297 2161146 2744717 3489399 1286396 2188535 2779582 3533622 1316169 2228986 2836868 3598925 1341173 2281727 2897859 368489) 1378831 2345794 2979225 3787533 1422441 2419987 3873453 3987326 1471191 2562924 3178785 4641237 1524172 2593868 3293261 4186771 1588397 2688717 3414747 4341219 1638821 2788111 3548982 4581762 1698353 2889393 3669612 4665232 3E+O7 «= 6E+07 «= 7E+B7 «= SE+87 ‘SEP ocT NOV DEC 16455 17787 22598 28719 CONCEPT 4 ANNUAL 2.21E+18 ANNUAL 2.21E+18 ANNUAL 226,791 NOME WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 1, 1990 Contact Names The following people were contacted in the field: Joe Murphy, General Manager of the Nome Joint Utility System (443-5288) Steve Wilson, Power Plant Foreman, Nome Joint Utility System (443-5288) Paul Merkouris, member of the Board of Directors of Nome Joint Utility System and Main- tenance Superintendent of the Beltz School (443-2231) Dr. Donald Darling, Superintendent, Nome Public Schools. Myron Michels, Superintendent, Anvil Mountain Correctional Center (443-2241) Frank Richardson, Road Superintendent, DOT/PF (443-3444) George Peratrovich, Director of Community Health Services, Norton Sound Health Cor- poration (443-3311) Gary Butcher, Alaska Gold Company Dick Wagner, Maintenance Superintendent, City of Nome (443-5242) Cussy Reardon, City Clerk, City of Nome (443-5242) Sharon Waluk, Trustee of the Lutheran Church Jerry Finke, General Manager, Hanson’s Store Randy and Kathy Pomerantz, Managers for Augdahl Apartments (443-5901) Dianne Rabb, Director of Hospital Services - N.S.H.C. (443-3311) Bob Shum, Manager of Bonanza Auto (443-2221) NOME WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 1, 1990 Cost Estimates SIMPLE ECONOMIC SUMMARY COST SUMMARY CONCEPT 1 $647,156 $0 $174,732 $821,888 CONCEPT 2 $1,117,261 $0 $301,660} $1,418,921 CONCEPT 3 $1,843,539 $0 $497,756 | $2,341,295 CONCEPT 4 $2,339,820 $0 $631,751 | $2,971,571 FUEL OIL SAVINGS SUMMARY conceer NSS NS eens CONCEPT $1.100 $ SAVINGS CONCEPT 1 $103,308 CONCEPT 2 $129,096 CONCEPT 3 $189,516 CONCEPT 4 $250,548 SIMPLE PAYBACK SUMMARY CONCEPT COST SAVINGS SAVINGS PAYBACK CONCEPT 1 $821,888 77,675 CONCEPT 2 $1,418,921 97,065 $1 29, 096 1 ‘ 0 CONCEPT 3 $2,341,295 172,590 $189,516 12.4 CONCEPT 4 $2,971,571 220,791 $250,548 | — 11.9 HMS 9038 CONSTRUCTION COST STUDY WASTE HEAT RECOVERY SYSTEM NOME, ALASKA Cost Consultant Engineer HMS, Inc. FPE Consulting Engineers 4103 Minnesota Drive 560 East 34th Avenue Anchorage, Alaska 99503 Anchorage, Alaska 99503 (907) 561-1653 April 30, 1990 (907) 562-0420 FAX WASTE HEAT RECOVERY SYSTEM PAGE 1 NOME, ALASKA CONSTRUCTION COST STUDY APRIL 30, 1990 NOTES REGARDING THE PREPARATION OF THIS COST ESTIMATE This study has been prepared from thirty-two (32) 8 1/2"x11" sketches and narratives connecting thirteen (13) buildings. There are four (4) concepts and one (1) option for this study. The estimate is priced using A.S. Title 36 prevailing labor rates and current materials and equipment prices to reflect a competitively bid date of Spring 1991. This is a statement of probable construction cost only and excludes the following costs. . A/E fees - Administrative costs - Cost for any other remodel work 1 2 3 4 Cost of asbestos abatement, if found in existing pipes/equipment WASTE HEAT RECOVERY SYSTEM PAGE 2 NOME, ALASKA CONSTRUCTION COST STUDY APRIL 30, 1990 GENERAL COST SUMMARY NOTE: Concept 1-4 connected to Alaska Gold Power Plant. Option connected to Snake River Power Plant and should be added to all concepts. CONCEPTS #1 or #2 or #3 or #4 ADD (Bldg 7-10) (Bldg 7-12) (Bldg 7-13) (Bldg 1-13) OPTION 1. Arctic Pipes and Loops 283,130 548,935 1,020,313 1,306 ,913 1,156,540 2. Power Plant Modifications 95,735 97,635 99,035 100,035 0 3. Moditications to Hospital 50,615 50,615 50,615 50,615 0 4. Modifications to Warehouse 4,770 4,770 4,770 4,770 0 5. Modifications to Health Services 7,700 7,700 7,700 7,700 0 6. Modifications to Recreation Center 0 41,225 41,225 417225 0 7. Modifications to Apartments 0 12,110 12,110 27,0110 0 8. Modifications to Elementary School 0 0 23,205 23,205 0 9. Modifications to Professional Building 0 0 0 4,750 0 10. Modifications to Lutheran Church 0 0 0 5,250 0 11. Modifications to Police/Fire Station 0 0 0 10,345 0 12. Modifications to Public Works Garage 0 0 0 1,910 0 13. Modifications to Hanson's Store 0 0 0 22,441 0 14. Modifications to Bonanza Auto 0 0 0 6,620 0 SUBTOTAL 441,950 762,990 1,258,973 1,597,889 1,156,540 14. General Conditions, Overhead and Profit (28%) 123,746 213 ,637 3527512 447,408 323,831 15. Contingencies (10%) 56,570 97,662 161,149 204,530 148 ,037 16. Escalation to April 1991 Bid Date (4%) 24,890 42,972 70,905 89 ,993 65,136 ANTICIPATED CONSTRUCTION COST: 647,156 1,117,261 1,843,539 2,339,820 1,693,544 WASTE HEAT RECOVERY SYSTEM NOME, ALASKA CONSTRUCTION COST STUDY 1. SUPPLY AND RETURN ARCTIC PIP£S AND EXPANSION LOOPS CONCEPT NO. 1 (BUILDING 7 - 10) QUANTITY UNIT Supply and return arctic pipe and expansion loops comprising: 12" steel carrier pipe, 2" insulation Surround and 16" PVC jacket pi Ditto 10" SCP, 2" insulation a PVC JP (2) pe (2) ad nd 14" Ditto 8" SCP, 2" insulation and 12" PVC JP (2). 1,550 Ditto 6" SCP, 2" insulation and 10" PVC JP (2) 838 Ditto 5" SCP, 2" insulation and 9" Pvc JP (2) Ditto 4" SCP, 2" insulation and 8" PVC JP (2) LF LF LF LF UNIT RATE 128.50 97.00 79 .80 ESTIMATED COST 123,690 517537 PAGE 3 APRIL 30, 1990 WASTE HEAT RECOVERY SYSTEM NOME, ALASKA CONSTRUCTION COST STUDY 1. SUPPLY AND RETURN ARCTIC PIPES AND EXPANSION LOOPS QUANTITY UNIT UNIT RATE CONCEPT NO. 1 (BUILDING 7 — 10) Supply and return arctic pipe and expansion loops comprising: (Continued) 3" steel carrier pipe, 2" insulation surround and 7" PVC jacket pipe (2) 100 2 1/2" SCP, 2" insulation and 6 1/2" PVC JP (2) == 2" SCP, 2" ditto and 6" PVC JP (2) 160 16" arctic pipe bend/tee for 12" pipe and loop cad 14" ditto for 10" ditto oa 12" ditto for 8" ditto 46 10" ditto for 6" ditto 28 9" ditto for 5" ditto = LF LF LF EA EA ESTIMATED COST PAGE 4 APRIL 30, 1990 4,100 4,800 WASTE HEAT RECOVERY SYSTEM NOME, ALASKA CONSTRUCTION COST STUDY 1. SUPPLY AND RETURN ARCTIC PIPES AND EXPANSION LOOPS QUANTITY UNIT PAGE 5 APRIL 30, 1990 CONCEPT NO. 1 (BUILDING 7 - 10) 8" arctic pipe bend/tee tor 4" pipe and loop = 7" ditto for 3" ditto 2 6 1/2" ditto for 2 1/2" ditto -- 6" ditto for 2" ditto 2 Connect arctic pipes to buildings and manholes (4) 16 Excavate, backfill and dispose for arctic pipe trench (1) 1,220 Ditto expansion loop at 300'0" o/c (6) 104 Ditto 36" diameter x 48" deep manholes 4 48" wide x 4" thick rigid insulation under pipes 4,880 EA EA EA EA EA LF LF EA UNIT RATE ESTIMATED COST 340.00 0 285 .00 570 225.00 0 185.00 370 165.00 2,640 15.25 18,605 15.25 1,586 285 .00 1,140 2.10 10,248 WASTE HEAT RECOVERY SYSTEM NOME, ALASKA CONSTRUCTION COST STUDY 1. SUPPLY AND RETURN ARCTIC PIPES AND EXPANSION LOOPS QUANTITY UNIT UNIT RATE PAGE 6 APRIL 30, 1990 ESTIMATED COST CONCEPT NO. 1 (BUILDING 7 - 10) 48" wide x 4" thick rigid insulation at loops Ditto under manholes (4) 42" diameter half CMP steel culvert at 16" arctic pipe mounted on steel pipe frame at loops ( ) 36" ditto for 14" and 12" arctic pipe (8) 30" ditto for 10" and 8" arctic pipe 24" ditto for 7" and 6 1/2" arctic pipe (|) 416 100 36" diameter x 48" deep CMP manhole with 6" concrete base, 6" concrete top ring and heavy duty manhole cover SF LF LF LF LF 2.10 2.10 35 .00 32.50 29 .80 22.50 1850.00 874 210 6,760 WASTE HEAT RECOVERY SYSTEM NOME, ALASKA CONSTRUCTION COST STUDY 1. SUPPLY AND RETURN ARCTIC PIPES AND EXPANSION LOOPS QUANTITY UNIT UNIT RATE ESTIMATED COST PAGE 7 APRIL 30, 1990 CONCEPT NO. 2 (BUILDING 7 - 12) Supply and return arctic pipe and expansion loops comprising: 12" steel carrier pipe, 2" insulation surround and 16" PVC jacket pipe (2) Ditto 10" SCP, 2" PVC JP (2) Ditto 8" SCP, PVC JP (2) Ditto 6" SCP, Pvc JP (2) Ditto 5" SCP, PVC JP (2) Ditto 4" SCP, PVC JP (2) 2" 2" 2" insulation and 14" insulation insulation insulation insulation and 12" and 10" and 9" 1,550 838 LF LF LF LF 128.50 97.00 79.80 61.50 123,690 51,537 145 ,236 WASTE HEAT RECOVERY SYSTEM NOME, ALASKA CONSTRUCTION COST S'TUDY 1. SUPPLY AND RETURN ARCTIC PIPES AND EXPANSION LOOPS QUANTITY UNIT UNIT RATE ESTIMATED COST PAGE 8 APRIL 30, 1990 CONCEPT NO. 2 (BUILDING 7 - 12) Supply and return arctic pipe and expansion loops comprising: (Continued) 3" steel carrier pipe, 2" insulation surround and 7" PVC jacket pipe (2) 100 2 1/2" SCP, 2" insulation and 6 1/2" Pvc JP (2) — 2" SCP, 2" ditto and 6" PVC JP (2) 160 16" arctic pipe bend/tee for 12" pipe and loop = 14" ditto for 10" ditto -- 12" ditto for 8" ditto 46 10" ditto for 6" ditto 28 LF LF LF EA EA 4,100 4,800 Continued WASTE HEAT RECOVERY SYSTEM PAGE 9 NOME, ALASKA CONSTRUCTION COST STUDY APRIL 30, 1990 1. SUPPLY AND RETURN ARCTIC PIPES AND EXPANSION LOOPS QUANTITY UNIT UNIT RATE ESTIMATED COST CONCEPT NO. 2 (BUILDING 7 - 12) 8" arctic pipe bend/tee for 4" pipe and loop 18 EA 340.00 6,120 7" ditto for 3" ditto 2 EA 285.00 570 6 1/2" ditto for 2 1/2" ditto —— EA 225.00 0 6" ditto for 2" ditto 2 EA 185.00 370 Connect arctic pipes to buildings and manholes (6) 24 EA 165.00 3,960 Excavate, backfill and dispose for arctic pipe trench (1) 2,732 LF 15.225 41,663 Ditto expansion loop at 300'0" o/c (11) 234 LF 15.2125 3,569 Ditto 36" diameter x 48" deep manhole 6 EA 285.00 1,710 48" wide x 4" thick rigid insulation under pipes 10,928 SF: 2e10 22,949 WASTE HEAT RECOVERY SYSTEM NOME, ALASKA CONSTRUCTION COST STUDY 1. SUPPLY AND RETURN ARCTIC PIPES AND EXPANSION LOOPS QUANTITY UNIT UNIT RATE CONCEPT NO. 2 (BUILDING 7 - 12) 48" wide x 4" thick rigid insulation at loops Ditto under manholes (6) 42" 16" diameter half CMP steel culvert at arctic pipe mounted on steel pipe frame at loops ( ) 36" 30" 24" (=) 36" ditto for 14" and 12" arctic pipe (8) ditto for 10" and 8" arctic pipe (10) ditto for 7" and 6 1/2" arctic pipe diameter x 48" deep CMP manhole with 6" concrete base, 6" concrete top ring and heavy duty manhole cover 936 150 208 260 SF SF LF LF LF LF 2.10 2.10 35.00 32.50 29.80 22.50 1850.00 PAGE 10 APRIL 30, 1990 ESTIMATED COST 1,966 3i15 6,760 7,748 TOTAL ESTIMATED COST: WASTE HEAT RECOVERY SYSTEM PAGE 11 NOME, ALASKA CONSTRUCTION COST STUDY APRIL 30, 1990 1. SUPPLY AND RETURN ARCTIC PIPES AND EXPANSION LOOPS QUANTITY UNIT UNIT RATE ESTIMATED COST CONCEPT NO. 3 (BUILDING 7 - 13) Supply and return arctic pipe and expansion loops comprising: 12" steel carrier pipe, 2" insulation surround and 16" PVC jacket pipe (2) = LF 128.50 0 Ditto 10" SCP, 2" insulation and 14" Pvc JP (2) 1,018 LF 97.00 98,746 Ditto 8" SCP, 2" insulation and 12" PVC JP (2) 3,260 LF 79.80 260,148 Ditto 6" SCP, 2" insulation and 10" PVC JP (2) 4,936 LF 61.50 303,564 Ditto 5" SCP, 2" insulation and 9" PVC JP (2) 266 LF 57.00 15,162 Ditto 4" SCP, 2" insulation and 8" PVC JP (2) 226 LF 48.50 10,961 WASTE HEAT RECOVERY SYSTEM PAGE 12 NOME, ALASKA CONSTRUCTION COST STUDY APRIL 30, 1990 1. SUPPLY AND RETURN ARCTIC PIPES AND EXPANSION LOOPS QUANTITY UNIT UNIT RATE ESTIMATED COST CONCEPT NO. 3 (BUILDING 7 —- 13) Supply and return arctic pipe and expansion loops comprising: (Continued) 3" steel carrier pipe, 2" insulation surround and 7" PVC jacket pipe (2) 100 LF 41.00 4,100 2 1/2" SCP, 2" insulation and 6 1/2" PVC JP (2) a LF 38.50 0 2" SCP, 2" ditto and 6" PVC JP (2) 160 LF 30.00 4,800 16" arctic pipe bend/tee for 12" pipe and loop -- EA 985 .00 0 14" ditto for 10" ditto 26 EA 870.00 22,620 12" ditto for 8" ditto 82 EA 740.00 60,680 10" ditto for 6" ditto 134 EA 520.00 69,680 9" ditto for 5" ditto 8 EA 435.00 3,480 TOTAL ESTIMATED COST: = = ~~ ~—~———”—~—”————Continued ss SS—~S WASTE HEAT RECOVERY SYSTEM NOME, ALASKA CONSTRUCTION COST STUDY 1. SUPPLY AND RETURN ARCTIC PIPES AND EXPANSION LOOPS QUANTITY UNIT PAGE 13 APRIL 30, 1990 CONCEPT NO. 3 (BUILDING 7 - 13) 8" arctic pipe bend/tee for 4" pipe and loop 8 7" ditto for 3" ditto 2 6 1/2" ditto for 2 1/2" ditto -- 6" ditto for 2" ditto 2 Connect arctic pipes to buildings and manholes (7) 28 Excavate, backfill and dispose for arctic pipe trench (1) 4,580 Ditto expansion loop at 300'0" o/c (31) 403 Ditto 36" diameter x 48" deep manhole ik 48" wide x 4" thick rigid insulation under pipes 18,320 EA EA EA EA EA LF LF EA UNIT RATE ESTIMATED COST 340.00 2,720 285.00 570 225.00 0 185.00 370 165.00 4,620 15.25 69,845 15.25 6,146 285.00 1,995 2.10 38,472 WASTE HEAT RECOVERY SYSTEM PAGE 14 NOME, ALASKA CONSTRUCTION COST STUDY APRIL 30, 1990 1. SUPPLY AND RETURN ARCTIC PIPES AND EXPANSION LOOPS QUANTITY UNIT UNIT RATE ESTIMATED COST CONCEPT NO. 3 (BUILDING 7 - 13) 48" wide x 4" thick rigid insulation at loops 1,612 SF 2.10 3,385 Ditto under manholes (7) 175 SF 2.10 368 42" diameter half CMP steel culvert at 16" arctic pipe mounted on steel pipe frame at loops ( ) = LF 35.00 0 36" ditto for 14" and 12" arctic pipe (13) 338 LF 32.50 10,985 30" ditto for 10"-9" and 8" arctic pipe (18) 468 LF 29.80 13,946 24" ditto for 7" and 6 1/2" arctic pipe 0 LF 22.50 0 36" diameter x 48" deep CMP manhole with 6" concrete base, 6" concrete top ring and heavy duty manhole cover 7 EA 1850.00 12,950 WASTE HEAT RECOVERY SYS'TEM PAGE 15 NOME, ALASKA CONSTRUCTION COST STUDY APRIL 30, 1990 1. SUPPLY AND RETURN ARCTIC PIPES AND EXPANSION LOOPS QUANTITY UNIT UNIT RATE ESTIMATED COST CONCEPT NO. 4 (BUILDING 1 —- 13) Supply and return arctic pipe and expansion loops comprising: 12" steel carrier pipe, 2" insulation surround and 16" PVC jacket pipe (2) 0 LF 128.50 0 Ditto 10" SCP, 2" insulation and 14" PVC JP (2) 1,018 LF 97.00 98,746 Ditto 8" SCP, 2" insulation and 12" PVC JP (2) 3,912 LF 79 .80 312,178 Ditto 6" SCP, 2" insulation and 10" PVC JP (2) 4,258 LF 61.50 261,867 Ditto 5" SCP, 2" insulation and 9" PVC JP (2) 1,776 LF 57.00 101,232 Ditto 4" SCP, 2" insulation and 8" PVC JP (2) 1,098 LF 48.50 53,253 TOTAL ESTIMATED COST: Continued BSSS SSS SSS SSS S SSS SS SSS SSS SSS SSS SSS SSS SS SSS SSS SS SSS SSS SSS SSS SSS SSS SSS SSS SSS SSS SS SSS SS SS SSSSSSS=== WASTE HEAT RECOVERY SYSTEM PAGE 16 NOME, ALASKA CONSTRUCTION COST STUDY APRIL 30, 1990 1. SUPPLY AND RETURN ARCTIC PIPES AND EXPANSION LOOPS QUANTITY UNIT UNIT RATE ESTIMATED COST CONCEPT NO. 4 (BUILDING 1 — 13) Supply and return arctic pipe and expansion loops comprising: (Continued) 3" steel carrier pipe, 2" insulation surround and 7" PVC jacket pipe (2) 160 LF 41.00 6,560 2 1/2" scP, 2" insulation and 6 1/2" PVC JP (2) 778 LF 38.50 29,953) 2" SCP, 2" ditto and 6" PVC JP (2) 386 LF 30.00 11,580 16" arctic pipe bend/tee for 12" pipe and loop 0 EA 985.00 0 14" ditto for 10" ditto 26 EA 870.00 22,620 12" ditto for 8" ditto 98 EA 740.00 72,520 10" ditto for 6" ditto 110 EA 520.00 57,200 9" ditto for 5" ditto 50 EA 435.00 21,750 TOTAL ESTIMATED COST: = = = ~~~~—~—~—~—~”~—~—~—~—””———SContinuedssSs—t—=~CS SSSS SSS SS SS SSS SSS SSS SS SS SSS SS SSS SS SS SSS SSS SSS SS SSS SSS SS SSS SSS SS SSH SS SSH SSS SSS SSS SSS SSS SSS SSS HHSHH== WASTE HEAT RECOVERY SYSTEM PAGE 17 NOME, ALASKA CONSTRUCTION COST STUDY APRIL 30, 1990 1. SUPPLY AND RETURN ARCTIC PIPES AND EXPANSION LOOPS QUANTITY UNIT UNIT RATE ESTIMATED COST CONCEPT NO. 4 (BUILDING 1 - 13) 8" arctic pipe bend/tee for 4" pipe and loop 26 EA 340.00 8,840 7% ditto Eor 3° "ditto 2 EA 285.00 570 6 1/2" ditto for 2 1/2" ditto 26 EA 225.00 5,850 6" ditto for 2" ditto 12 EA 185.00 2,220 Connect arctic pipes to buildings and manholes (13) 52 EA 165.00 8,580 Excavate, backfill and dispose for arctic pipe trench (1) 6,160 LF 18/525 93,940 Ditto expansion loop at 300'0" o/c (41) 1,066 LF 15.25 16,257 Ditto 36" diameter x 48" deep manhole 13 EA 285.00 3,705 48" wide x 4" thick rigid insulation under pipes 24,640 SF 2.10 51,744 WASTE HEAT RECOVERY SYSTEM NOME, ALASKA CONSTRUCTION COST STUDY 1. SUPPLY AND RETURN ARCTIC PIPES AND EXPANSION LOOPS CONCEPT NO. 4 (BUILDING 1 — 13) 48" wide x 4" thick rigid insulation at loops Ditto under manholes (13) 42" diameter half CMP steel culvert at 16" arctic pipe mounted on steel pipe frame at loops ( ) QUANTITY UNIT 4,264 325 0 36" ditto for 14" and 12" arctic pipe (15) 390 30" ditto for 10"-9" and 8" arctic pipe (22) 572 24" ditto for 7"-6 1/2" and 6" arctic pipe (4) 104 36" diameter x 48" deep CMP manhole with 6" concrete base, 6" concrete top ring and heavy duty manhole cover UNIT RATE PAGE 18 APRIL 30, 1990 ESTIMATED COST SF SF LF LF LF LF 2.10 2.10 35.00 32.50 29.80 22.50 1850.00 8,954 683 12,675 17,046 WASTE HEAT RECOVERY SYSTEM PAGE 19 NOME, ALASKA CONSTRUCTION COST STUDY APRIL 30, 1990 1. SUPPLY AND RETURN ARCTIC PIPES AND EXPANSION LOOPS QUANTITY UNIT UNIT RATE ESTIMATED COST OPTION Delete arctic pipes from Alaska Gold Power Plant and add to Snake River Power Plant. Supply and return arctic pipes and expansion loops comprising: OMIT: 10" JCP, 2" insulation, 14" PVC JP complete with bends, tees, expansion loops, excavation, etc. 1,096 LF 135.50 (148,508) ADD: 10" steel carrier pipe, 2" insulation surround and 14" PVC jacket pipe (2) 10,310 LF 97.00 1,000,070 Ditto hung to river overpass (2) 450 LF 97.00 43,650 36" diameter CMP for above 225 LF 70.00 15,750 WASTE HEAT RECOVERY SYSTEM NOME, ALASKA CONSTRUCTION COST STUDY 1. SUPPLY AND RETURN ARCTIC PIPES AND EXPANSION LOOPS QUANTITY UNIT UNIT RATE PAGE 20 APRIL 30, 1990 ESTIMATED COST OPTION Supply and return arctic pipe and expansion loops comprising: (Continued) ADD: (Continued) 14" arctic pipe bend/tee for 10" pipe and loop 124 Connect arctic pipes to building and manholes 4 Excavate, backfill and dispose for arctic Pipe trench (1) 4,765 Ditto expansion loop at 300'0" o/c (15) 390 48" wide x 4" thick rigid insulation under pipes 19,060 EA EA LF LF SF 870.00 165.00 15.25 15.25 2.10 107,880 660 72,666 5,948 40 ,026 WASTE HEAT RECOVERY SYSTEM NOME, ALASKA CONSTRUCTION COST STUDY 1. SUPPLY AND RETURN ARCTIC PIPES AND EXPANSION LOOPS UNIT RATE PAGE 21 APRIL 30, 1990 ESTIMATED COST QUANTITY OPTION Supply and return arctic pipe and expansion loops comprising: (Continued) ADD: (Continued) 48" wide x 4" thick rigid insulation at loops 1,560 30" diameter half CMP steel culvert at 10" arctic pipe mounted on steel pipe frame at loops (15) 390 Saw cut and remove asphalt road pavement for pipe crossing and patch afterwards (2) : 350 SF LF SF 2.10 29.80 10.00 3,276 11,622 3,500 WASTE HEAT RECOVERY SYSTEM NOME, ALASKA CONSTRUCTION COST STUDY 2. POWER PLANT MODIFICATIONS QUANTITY UNIT UNIT RATE PAGE 22 APRIL 30, 1990 ESTIMATED COST CONCEPT NO. 1 Cut existing 10" pipes for new equipment 1800 GPM, 16,200 MBH, 20 gauge stainless steel plate heat exchanger 1800 GPM, 20' head, 15 HP circulation pump 470 GPM, 7.5 HP circulation pump 200 gallon bladder type expansion tank Air separator 10" insulated schedule 40 steel header 4" ditto at expansion tank 10" gate valves 2 EA 1 EA 1 EA 1 EA 1 EA 1 EA 180 LF 30 LF 6 EA 155.00 25600 .00 12870 .00 2950.00 2550.00 1370.00 87.50 42.00 2240.00 25,600 12,870 2,950 2,550 1,370 15,750 1,260 13,440 WASTE HEAT RECOVERY SYSTEM PAGE 23 NOME, ALASKA CONSTRUCTION COST STUDY APRIL 30, 1990 2. POWER PLANT MODIFICATIONS QUANTITY UNIT UNIT RATE ESTIMATED COST CONCEPT NO. 1 10" check valves 2 EA 2500.00 5,000 10" balance valve 1 EA 875.00 875 10" tees and elbows 18 EA 420.00 7,560 4" ditto 4 EA 125.00 500 Connections to equipment and existing pipes 12 EA 225.00 2,700 Electrical conduit, wiring and connections to pumps 2 LOTS 1500.00 3,000 WASTE HEAT RECOVERY SYSTEM NOME, ALASKA CONSTRUCTION COST STUDY 2. POWER PLANT MODIFICATIONS QUANTITY UNIT UNIT RATE ESTIMATED COST PAGE 24 APRIL 30, 1990 CONCEPT NO. 2 All as Concept 1 Omit 470 GPM, 7.5 HP pump Add 700 GPM, 20 HP pump 1 LOT 1 EA 1 EA 95,735 (2,950) 4,850 TOTAL ESTIMATED COST WASTE HEAT RECOVERY SYSTEM NOME, ALASKA CONSTRUCTION COST STUDY 2. POWER PLANT MODIFICATIONS QUANTITY UNIT UNIT RATE ESTIMATED COST PAGE 2£ APRIL 30, 199¢ CONCEPT NO. 3 All as Concept 1 Omit 470 GPM, 7.5 HP pump Add 1100 GPM, 40 HP pump 1 LOT 1 EA 1 EA OS 35) (2,950) 6,250 WASTE HEAT RECOVERY SYSTEM PAGE 26 NOME, ALASKA CONSTRUCTION COST STUDY APRIL 30, 1990 2. POWER PLANT MODIFICATIONS QUANTITY UNIT UNIT RATE ESTIMATED COST CONCEPT NO. 4 All as Concept 1 1 LOT 955735 Omit 470 GPM, 7.5 HP pump 1 EA (2,950) Add 1310 GPM, 60 HP pump 1 EA 7,250 WASTE HEAT RECOVERY SYSTEM PAGE 27 NOME, ALASKA CONSTRUCTION COST STUDY APRIL 30, 1990 3. MODIFICATIONS TO HOSPITAL QUANTITY UNIT UNIT RATE ESTIMATED COST CONCEPT NO. 1 - 4 Cut existing 4" pipes for new equipment 4 EA 95.00 380 400 GPM, 3,600 MBH, 20 gauge stainless steel plate heat exchanger 1 EA 13250.00 13,250 100 GPM shell and tube heat exchanger 1 EA 6250.00 6,250 700 GPM, 20 HP air circulating pump 1 EA 4850.00 4,850 4" insulated schedule 40 steel header 180 LF 42.00 7,560 4" gate valves 17 EA 485.00 . 8,245 4" balance valves 8 EA 250.00 750 4" three-way control valve 1 EA 870.00 870 4" tees and elbows 41 EA 120.00 4,920 Thermometers 4 EA 120.00 480 WASTE HEAT RECOVERY SYSTEM PAGE 28 NOME, ALASKA CONSTRUCTION COST STUDY APRIL 30, 1990 3. MODIFICATIONS TO HOSPITAL QUANTITY UNIT UNIT RATE ESTIMATED COST CONCEPT NO. 1 - 4 Connections to equipment and existing pipes 12 EA 130.00 1,560 Electrical conduit, wiring and connection to circulating pump 1 LOT 1,500 TOTAL ESTIMATED COST: 50,615 WASTE HEAT RECOVERY SYSTEM PAGE 29 NOME, ALASKA CONSTRUCTION COST STUDY APRIL 30, 1990 4. MODIFICATIONS TO WAREHOUSE QUANTITY UNIT UNIT RATE ESTIMATED COST CONCEPT NO. 1 - 4 Cut existing 1 1/2" pipes for new equipment 2 EA 50.00 100 20 GPM, 180 MBH, 20 gauge stainless steel plate heat exchanger 1 EA 2150.00 2,150 1 1/2" insulated schedule 40 steel header 40 LF 22.50 900 1 1/2" gate valves , 4 EA 125.00 500 1 1/2" balance valves 1 EA 100.00 100 1 1/2" tees and elbows 10 EA 60.00 600 Connections to equipment and existing pipes 6 EA 70.00 420 WASTE HEAT RECOVERY SYSTEM PAGE 30 NOME, ALASKA CONSTRUCTION COST STUDY APRIL 30, 1990 5. MODIFICATIONS TO HEALTH SERVICES QUANTITY UNIT UNIT RATE ESTIMATED COST CONCEPT NO. 1 - 4 Cut existing 3" pipes for new equipment 2 EA 75.00 150 50 GPM, 450 MBH, 20 gauge stainless steel plate heat exchanger 1 EA 3175.00 3175) 3" insulated schedule 40 steel header 60 LF 30.50 1,830 3" gate valves 4 EA 225.00 900 3" balance valves 1 EA 185.00 185 3" tees and elbows 10 EA 98.00 980 Connections to equipment and existing pipes 6 EA 80.00 480 WASTE HEAT RECOVERY SYSTEM NOME, ALASKA CONSTRUCTION COST STUDY 6. MODIFICATIONS TO RECREATION CENTER QUANTITY UNIT UNIT RATE PAGE 31 APRIL 30, 1990 ESTIMATED COST CONCEPT NO. 2 - 4 Cut existing 3"-5" pipes for new equipment 6 HX2 50 GPM, 450 MBH, 20 gauge stainless steel plate heat exchanger HX1 100 GPM, 910 MBH ditto 3" insulated schedule 40 steel in arctic pipe carrier 4" insulated schedule 40 header 5" ditto . 3" balance valves 5" ditto 3"-5" tees and elbows Connections to equipment and existing pipes 1 1 240 50 140 EA EA LF LF LF EA EA 65 .00 3175.00 6250.00 70.00 42.00 52.50 185 .00 295 .00 125.00 110.00 WASTE HEAT RECOVERY SYSTEM NOME, ALASKA CONSTRUCTION COST STUDY 7. MODIFICATIONS TO APARTMENTS QUANTITY UNIT UNIT RATE PAGE 32 APRIL 30, 1990 KSTIMATED COST CONCEPT NO. 2 - 4 Cut existing 2" pipes for new equipment 4 80 GPM, 720 MBH, 20 gauge stainless steel (3) chamber plate heat exchanger 1 2" insulated schedule 40 steel header 120 2" gate valves a 4 2" balance valves 2 2" tees and elbows 18 Connections to equipment and existing pipes 10 EA LF EA EA EA EA 50.00 5870.00 23.75 185.00 150.00 75.00 80.00 5,870 2,850 740 300 1,350 800 WASTE HEAT RECOVERY SYSTEM PAGE 33 NOME, ALASKA CONSTRUCTION COST STUDY APRIL 30, 1990 8. MODIFICATIONS TO ELEMENTARY SCHOOL QUANTITY UNIT UNI RATE ESTIMATED COST CONCEPT NO. 3 AND 4 Cut existing 6" pipes for new equipment 4 EA 110.00 440 400 GPM, 3,600 MBH, 20 gauge stainless steel plate heat exchanger 1 EA 14850.00 14,850 6" insulated schedule 40 steel header 20 LF 62.50 1,250 4" ditto 60 LF 42.00 2,520 4" balance valves 2 EA 185.00 370 4" three-way control valve 1 EA 875 .00 ; 875 4" tees and elbows 15 EA 120.00 1,800 Connections to equipment and existing pipes 10 EA 110.00 1,100 WASTE HEAT RECOVERY SYSTEM PAGE 34 NOME, ALASKA CONSTRUCTION COST STUDY APRIL 30, 1990 9. MODIFICATIONS TO PROFESSIONAL BUILDING QUANTITY UNIT UNI'l RATE ESTIMATED COST CONCEPT NO. 4 ONLY Cut existing 1 1/4" pipes for new equipment 2 EA 40.00 80 20 GPM, 180 MBH, 20 gauge stainless steel plate heat exchanger 1 EA 2150.00 2,150 1 1/2" insulated schedule 40 steel header 40 LF 22.50 900 1 1/2" gate valves 4 EA 125.00 500 1 1/2" balance valve 1 EA 100.00 100 1 1/2" tees and elbows 10 EA 60.00 600 Connections to equipment and existing pipes 6 EA 70.00 420 TOTAL ESTIMATED COST WASTE HEAT RECOVERY SYSTEM PAGE 35 NOME, ALASKA CONSTRUCTION COST STUDY APRIL 30, 1990 10. MODIFICATIONS TO LUTHERAN CHURCH QUANTITY UNIT UNIT RATE ESTIMATED COST CONCEPT NO. 4 ONLY Cut existing 1 1/2" pipes for new equipment 2 EA 40.00 80 30 GPM, 270 MBH, 20 gauge stainless steel plate heat exchanger 1 EA 2650.00 2,650 1 1/2" insulated schedule 40 steel header 40 LF 22.50 900 1 1/2" gate valves 4 EA 125.00 500 1 1/2" balance valves 1 EA 100.00 100 1 1/2" tees and elbows 10 EA 60.00 600 Connections to equipment and existing pipes 6 EA 70.00 420 WASTE HEAT RECOVERY SYSTEM PAGE 36 NOME, ALASKA CONSTRUCTION COST STUDY APRIL 30, 1990 11. MODIFICATIONS TO POLICE/FIRE STATION QUANTITY UNIT UNIT RATE ESTIMATED COST CONCEPT NO. 4 ONLY Cut existing 2" pipes for new equipment 2 EA 50.00 100 80 GPM, 720 MBH, 20 gauge stainless steel (3) chamber plate heat exchanger 1 EA 5870.00 5,870 2" insulated schedule 40 steel header 60 LF 23.75 1,425 2" gate valves 6 EA 185.00 1,110 2" balance valves 1 EA 150.00 150 2" tees and elbows 14 EA 75.00 1,050 Connections to equipment and existing pipes 8 EA 80.00 “640 WASTE HEAT RECOVERY SYSTEM PAGE 37 NOME, ALASKA CONSTRUCTION COST S'TUDY APRIL 30, 1990 12. MODIFICATIONS TO PUBLIC WORKS GARAGE QUANTITY UNIT UNIT RATE ESTIMATED COST CONCEPT NO. 4 ONLY Cut existing 2" pipes for new equipment 2 EA 65.00 130 2" insulated schedule 40 steel header 40 LF 23-75 950 2" gate valves 2 EA 185.00 370 2" balance valves 1 EA 150.00 150 2" tees and elbows 2 EA 75.00 150 Connections to existing pipes 2 EA 80.00 160 WASTE HEAT RECOVERY SYSTEM NOME, ALASKA CONSTRUCTION COST STUDY 13. MODIFICATIONS TO HANSON'S STORE QUANTITY UNIT UNIT RATE PAGE 38 APRIL 30, 1990 ESTIMATED COST CONCEPT NO. 4 ONLY Cut existing 4" pipes for new equipment 60 GPM, 540 MBH, 20 gauge stainless steel plate heat exchanger 4" insulated schedule 40 steel pipe in arctic pipe carrier 4" ditto inside building 4" gate valves 4" balance valves 4" tees and elbows Connections to equipment and existing pipes 140 40 10 6 EA LF LF EA EA EA EA 98.00 5150.00 85.00 42.00 390.00 185.00 120.00 95.00 5,150 11,900 1,680 1,560 185 1,200 570 WASTE HEAT RECOVERY SYSTEM PAGE 39 NOME, ALASKA CONSTRUCTION COST STUDY APRIL 30, 1990 14. MODIFICATIONS TO BONANZA AUTO QUANTITY UNIT UNIT RATE ESTIMATED COST CONCEPT NO. 4 ONLY Cut existing 2" pipes for new equipment 2 EA 50.00 100 40 GPM, 360 MBH, 20 gauge stainless steel plate heat exchanger 1 EA 2975.00 2,975 2" insulated schedule 40 steel header 60 LF 237515 1,425 2" gate valves 4 EA 185 .00 740 2" balance valves 1 EA 150.00 150 2" tees and elbows 10 EA 75.00 750 Connections to equipment and existing pipes 6 EA 80.00 480 NOME WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 1, 1990 Raw Data USER BUILDINGS Hospital Boiler: 3 ea, Cleaver Brooks CBH- 100-60, 200 MBH Boiler Supply Setpoint Temp.: N/A Actual Boiler Return/Supply Temp.: N/A Circ Pump(s): Armstrong 138629, 200 GPM @ 10’ Cire Pump(s) Pressure: Not available. Hosp. Warehouse Boiler(s): Sears 229-942380, 191 MBH Boiler Supply Setpoint Temp.: N/A Actual Boiler Return/Supply Temp.: 190 Circ Pump(s): CP-1 Grundfos UPS 20-42 Circ Pump(s) Pressure: Not available. Community Heatth Services Boller: 2 ea. Weil Mclain ABL 576-W-S, 292 MBH Boiler Supply Setpoint Temp.: N/A | Actual Boiler Return/Supply Temp.: N/A Circ Pump(s): Grundfos UMS 60-160 (2 ea.) & UPS 65-160 Circ Pump(s) Pressure: Not available. NOME WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 1, 1990 Recreation Center Boiler: 2 ea. Weil McLain (no nameplate) & 1 ea. Weil McLain BL-776-SW, 417 MBH Boiler Supply Setpoint Temp.: Not available. Actual Boiler Return/Supply Temp.: 170-185 Cire Pump(s): 2 ea. Grundfos UPS 50-160 & 1 ea. UMS 50-80 Cire Pump(s) Pressure: Not available. Apartments Boiler: 4 ea. Well McLain BL-476-W-S, 264 MBH Boiler Supply Setpoint Temp.: Not available. Actual Boiler Return/Supply Temp.: 160 Cire Pump(s): 1 ea. Grundfos UMS 50-40 Circ Pump(s) Pressure: Not available. NOME WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 1, 1990 Elementary School Boiler: 2 ea. Weill McLain, 1108 MBH Boiler Supply Setpoint Temp.: N/A Actual Boiler Return/Supply Temp.: N/A Cire Pump(s): Grundfos Cire Pump(s) Pressure: Not available. Professional Building Boller: 1 ea. Burnham PF-505, 683 MBH Boiler Supply Setpoint Temp.: N/A Actual Boiler Return/Supply Temp.: 160 Cire Pump(s): 2 ea. Grundfos UPS 15-42F Cire Pump(s) Pressure: Not available. Police/Fire Station Boiler: Well McLain 7BL-576-SW, 292 MBH Boiler Supply Setpoint Temp.: N/A Actual Boiler Return/Supply Temp.: 180 Cire Pump(s): 2 ea. Grundfos UPS 15-42F, UPS 43-75BF, UMS 40-40, UMS 50-40. Circ Pump(s) Pressure: Not available. NOME WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 1, 1990 Public Works Boller: Slant Fin 70-W-386, 336 MBH Boiler Supply Setpoint Temp.: N/A Actual Boiler Return/Supply Temp.: 180 Cire Pump(s): 1 ea. Grundfos UPS 50-160 Circ Pump(s) Pressure: Not available. Hanson’‘s Store Boiler: 1 ea. Hydrotherm Mutti-temp MO-840, 542 MBH & American Stan- dard PFA 35, 326 MBH Boiler Supply Setpoint Temp.: N/A Actual Boiler Return/Supply Temp.: 120 Cire Pump(s): 2 ea. Grundfos UMS 26-64F & B&G 100, J98 Circ Pump(s) Pressure: Not available. Bonanza Auto Boller: Slant Fin 78-280, 259 MBH Boiler Supply Setpoint Temp.: N/A Actual Boiler Return/Supply Temp.: 180 Cire Pump(s): Grundfos UMC 50-40 Circ Pump(s) Pressure: Not available. vos_NOME WACTE REAT FPE _consuttine eNciNceRS 560 E. 34th Avenue, Suite 300 SHEET NGS L ort Ane aaa eee CALCULATED BY___ Tw) oate_ 424) Gq FAX (907) 561-7028 CHECKED BY. DATE SCALE ENERWY ESTIMATION FOR WATER HEATING _ASsSOME : Latics aan eo Flow tate =. 350,000 gallons } day Hering Season = all months of the year Waher temperature cise = (0 °F 2 > mop bT= 500 (4pm) OT = 500 ( 350,000 gallons /doy) (Qo fol \ z4 hes) day bo rains. [Ac = \200 MBY PRODUCT 204.1 (WEBS) tne. Groton, Mass. 01471 yos__NWome WASTE HEAT FPE _ consuttine encineers 560 E. 34th Avenue, Suite 300 SHEETING: L i OF aeenne 7 setlees CALCULATED BY Tw pate 4)23)90 FAX (907) 561-7028 CHECKED BY DATE scate__WASTE WEAT Locos Begiening e€ Amok rales wn tn sab | there Is pssumed to be a constants Neat loss ceduciny qe available. waste heat, These losses all into. the Following. cahegories ; \ trade _ poset plant es assisting, ulspace heating 2. AY power plant - space heating , fel eating (ussurced = 0} 2, Detnbuhon. cystem ~ archic Pipe PART 1 - INSIDE PowERPLANT Assume Neat less not assisting in space heating is eguivalent to \oo’ of uningdl ated \o" Pipe , 100’ of uninlakka b" pipe, ond 52 cco B4s/he for She \ow Flow keet going throvgh the extensor remote radiators. From PASURAE Fundamentals (904) + b" sleel 2 337 BH F 34 metr 10" cheel > G04 BLL > bo mer Rahalor = 5o MBY \44 met PPRY 3 - DISTRIBUTION SYSTEM Assure a less of 30 “Bh/ A. foe euch. Fob of. pipe laid. PROQUCT 204.1 (WEBS) ne. Groton, Mass. 01471 HEAT EXCHANGER SCHEDULE Pec rie ee ee | gee eee il MBH Lit si 3) 4! POWER PLANT MAIN HX eo 16,200 X X X X HOSPITAL ALL HEAT 3,600 X X XK X WAREHOUSE SPACE HT. a 180 X X X X HEALTH SERVICES ALL HEAT 50 450 X X XK X RECREATION CENTER ROOM 1 100 900 xX X X RECREATION CENTER ROOM 2 50 450 xX X X APARTMENTS ALL HEAT 80 720 xX X X ELEMENTARY SCHOOL ALL HEAT 400 3,600 xX xX PROFESSIONAL BLDG. SPACE HT. 20 180 x LUTHERAN CHURCH SPACE HT. 30 270 Xx POLICE/FIRE STATION SPACE HT. 80 720 x PUBLIC WORKS GARAGE NONE - - x HANSON’S STORE SPACE HT. 60 540 x BONANZA AUTO SPACE HT. 40 360 x PIP) ta Z O _ SCOMOAINMNAWNE NN PRR RRR Re eR RFPOUMDNINAUNAPWN HE 500 460 60 40 1280 100 500 480 2100 420 3760 60 360 200 200 160 160 100 940 240 200 12 10 2-1 NDP wW RUD 0c TOTAL PIPING LENGTH ESTIMATION | SIZE FOR CONCEPT NO. LENGTH] i] 23 1 CODD, 1 CWNA, 1 PNMODMA, . RUNWOWNA, ttt NOWCWCOCHAA, — ARUNOWNA, SUMMARY 2-1/2 Y is BAW Ao oMmoUNNWNA i RMNOWNAN TOTAL LENGTHS FOR CONCEPTS SIZE 0 0 1420 760 0 0 100 0 160 2,440 0 0 1420 760 2340 620 100 0 160 5,400 0 940 3000 4520 240 200 100 0 160 9,160 0 940 3600 3920 1620 1020 160 700 360 12,320 oe eal ae or 1 7,8,9 470 2 7 through 12 700 3 7 through 13 1100 4 All 1310 Operating cost assumes $0.1675/KHW. PRESSURE DROP |PUMP SIZE OPERATING | BASE |_PIPE | BHP | _HP_| 25 23 «57 7.5 25 52 136 20 25 90 32.0 40 25 120 48.0 60 COST $6,196 $14,803 $34,741 $52,166