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Aniak Waste Heat Recovery Report & Concept Design 1990
ANIA 00/ C,2 en ANIAK 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 11, 1990 Y & ANIAK WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 11, 1990 TABLE OF CONTENTS 1.0 EXECUTIVE SUMMARY 1 2.0 INTRODUCTION 2 3.0 DESCRIPTION OF SITE VISIT 3 40 POWER PLANT DESCRIPTION 5 5.0 POTENTIAL WASTE HEAT USER BUILDING DESCRIPTIONS 9 6.0 RIGHT-OF-WAY/EASEMENT 28 70 CONCEPT DESIGN 29 8.0 ECONOMIC DATA 56 9.0 FAILURE ANALYSIS 58 10.0 CONCLUSIONS AND RECOMMENDATIONS 68 APPENDICES 1 Calculations 2. Contact Names 3. Cost Estimates 4, Raw Data D> WY LIST OF FIGURES AND TABLES Power Plant Photographs Aniak Power Generation - 1989 Kuspuk School District Building Photographs Kuspuk School! District Building Oil Use Apartment Complex Photographs Apartment Complex Fuel Oil Use Office Bullding Photographs Office Bullding Fuel Oil Use Elementary School Gym Photographs Elementary School Classroom Building Photographs Special Education Building Photographs Pre-school Building Photographs School Buildings’ Fuel Oil Use Figure 1 - Legend Figure 2 - System Schematic Figure 3 - System Site Plan Figure 4 - Power Plant Floor Plan Figure 5 - Power Plant Cooling Schematic Figure 6 - Kuspuk School Dist. Bullding Floor Plan Figure 7 - Kuspuk School Dist. Bullding Boller Schematic Figure 8 - Apartment Complex Floor Plan Figure 9 - Apartment Complex Boller Schematic Figure 10 - Office Building Floor Plan Figure 11 - Office Building Boller Schematic Figure 12 - Elem. School Gym Floor Plan Figure 13 - Elem. School Gym Furnace Arrangement Figure 14 - Elem. School Classroom Building Floor Plan Figure 15 - Elem. School Classroom Building Furnace Arrangement Figure 16 - Special Ed. Building Floor Plan Figure 17 - Special Ed. Building Boller Schematic Figure 18 - Pre-school Building Floor Plan Figure 19 - Pre-school Building Furnace Arrangement Figure 20 - Arctic Pipe Trench Cross Section Graph 1 * Graph 2 ANIAK WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 11, 1990 1.0 ANIAK WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 11, 1990 EXECUTIVE SUMMARY A potential for waste heat recovery exists in the community of Aniak. Aniak is located on the south bank of the Kuskokwim River. The community is located 325 air miles west of Anchorage. The heat energy could be recovered from the diesel engine-generator sets operated by Aniak Power and Light and circulated to user buildings in the community. The following possible waste heat user buildings have been identified: the Kuspuk School District Bullding, an Apartment Complex and Office Buliding owned by Aniak properties, and four buildings on the elementary school campus. These four buildings are the Gym, the Classroom building, the Special Ed. building, and the Pre-school building. It appears as If the most economical system will provide heat to the Apartment building, the Office bullding, the Elementary School Gym, and the Special Education 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 men- tioned buildings, the following are the estimated results: Estimated Project Cost $519 A00 Total Fuel Oil Savings 18,900 gallons Total Annual Dollar Savings $21,100 Page 1 ANIAK WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 11, 1990 2.0 INTRODUCTION 2.1 2.2 2.3 Objective Tne objective of the field investigation and report is to ascertain the viability of waste heat recovery and use in the community of Aniak. 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 vistt 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 bulldings 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 Aniak is a community of approximately 500 persons located on the bank of the Kuskokwim River at the head of the Aniak Slough, 59 miles southwest of Russian Mission. The community Is located 325 air miles west of Anchorage. Most of the terrain is gently rolling on a river plain. See Figure 3 in Section 7 for a partial com- munity site plan. Page 2 2.4 ANIAK WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 11, 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 3 ANIAK WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 11, 1990 3.0 DESCRIPTION OF SITE VISIT 3.1 Field Notes Contact names are included as part of the Appendix at the end of this report. They include both fleld contacts and contacts made by phone. 3.2 Field Contacts The following people were contacted In the field: Bob McHenry, Superintendent Kuspuk Schoo! District Steve Hill, Facilities Manager Kuspuk School District Arte Bemandel, Owner of Aniak Light and Power Carl Morgan, Manager for Aniak Properties Aniak Properties (in Anchorage) Terry Hoefferle, Aniak City Manager Page 4 ANIAK WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 11, 1990 4.0 POWER PLANT DESCRIPTION 41 4.2 43 Narrative Description The power plant is privately owned by Arte Bemandel of Aniak who also operates the plant. His home is located adjacent to the power plant. The power plant building is located on the comer of Boundary Avenue and Fourth Street on the north side of the runway. The building Is a forty-foot square steel structure with Insulated metal panels and a concrete slab-on-grade foundation. It was bullt in 1981. The building is heated through the use of mixing dampers which mix return air and air from the radiators and release It Into the buliding Interior. The bullding Is in good condition. Power Is currently produced through the use of two Caterpillar 3508s. In addition there are two Caterpillar D353’s used for backup. Any or all of the generators can operate in parallel. The utility uses number 2 fuel oil throughout the year. The power plant provides power for virtually all of the community. Current power costs are $.4595/KWH. Floor Plan and Schematics See the Figures 4 and 5 for a simple floor plan and schematic of the system (located in Section 7). Photographs See the attached copies of the original color photographs of the proposed plant site. Page 5 44 ANIAK WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 11, 1990 Available Load Information Refer to the attached Table 1 Indicating historical power production. This infor- mation Is from Aniak Light and Power for the year 1989. Figures for other years are also included as part of the Appendix. Page 6 PHOTO 1; POWER PLANT Building Exterior PHOTO 2: POWER PLANT SITE Caterpillar Generators Page 7 TABLE 1 ANIAK LIGHT AND POWER GENERATION 1989 KWH MONTH JAN 211,535 294 FEB 170,500 245 MAR 163,280 219 APR 157,740 720 219 MAY 146,450 744 197 JUNE 122,560 720 170 JULY 136,380 744 183 AUG 161,045 744 216 SEP 146,350 720 203 OCT 183,375 744 246 NOV 191,921 720 267 DEC 207,440 279 ANNUAL 1,998,576 228 Page 8 ANIAK WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 11, 1990 5.0 POTENTIAL WASTE HEAT USER BUILDING DESCRIPTIONS 5.1 5.2 General During the site visit, all bulldings within a reasonable distance of the power plant, and with a significant heating load were considered. The bulldings were visited and information about them gathered. The information is presented below. It should be noted that no fuel oll records are avallable for any of the buildings dis- cussed. All fuel use figures used are based on discussions with maintenance per- sonnel and on building size and use. Photographs accompany each bullding description. Plans and schematics can be found in Section 7. Kuspuk School District Building General This particular building serves a variety of purposes. The majority of the building houses offices for Schoo! District Administration. On the first floor of the two-story structure is a media center (library) for the entire school district. The building was completed and occupied in 1987. It Is a two-story structure of wood and steel construction with concrete footings and a crawlspace. It measures ap- proximately 74 feet by 78 feet with an estimated conditioned floor area of 11,000 square feet. The bullding is in excellent condition. Heating Energy Use A single boller rated at 247 MBH output provides heating for the entire bullding through terminal heating units such as finned tube. Domestic hot water is produced using a shel-and-tube heat exchanger and water from the boiler. in addition, a fumace Is used for heating ventilation air in conjunction with an air- to-air heat exchanger. The furnace Is rated at 200 MBH output. Refer to Table 2 for the yearly fuel oil use for the building. The yearly figures were provided estimated by the school district’s Facilities Manager. Page 9 PHOTO 3: KUSPUK SCH. DIST. BLDG. Building Exterior PHOTO 4: KUSPUK SCH. DIST. BLDG. Boiler System Page 10 JAN FEB APR MAY JUNE JULY AUG SEP OCT NOV DEC TABLE 2 BUILDING: YEARLY FUEL USE: REDUCTION FOR DHW: HEATING DOM. WATER DEGREE DAYS|HEATING GALLONS 2020 1669 1639 1165 684 356 279 369 601 1128 1510 2054 KUSPUK SCH. DIST. BLDG. 6,000 0% NET HEATING USE (GALLONS) 899 743 730 519 304 158 124 164 268 502 672 915 oO ooooo0qco0o0oco0o°o 13,472 Page 11 6,000 TOTAL USE (GALLONS) 899 743 730 519 304 158 124 164 268 502 672 915 6,000 5.3 Apartment Complex General The Apartment Complex bullding is located east of the power plant along Boundary Avenue. It ls a wood structure with a crawl space. Some areas of the building are two stories in height. The bullding dimensions are approximately 190 feet by 35 feet for a conditioned area of 11,000 square feet. The age of the building is not known. It is in good condition. Heating Energy Use Two boilers provide heating for the building. An oil-fired water heater provides The two boilers are identical Bumham boilers with 183 MBH rated output. The ter- minal units are finned tube. Refer to Table 3 for the yearly fuel oll use for the building. The figures for fuel oll use were provided by Aniak properties on a yearly basis for both the Apartment Complex and the Office Bullding (described later). Monthly figures of fuel use are estimated based on the local degree days. Page 12 PHOTO 5: APARTMENT COMPLEX Building Exterior PHOTO 6: APARTMENT COMPLEX Boiler System Page 13 JAN FEB APR MAY JUNE JULY AUG SEP OCT NOV DEC TABLE 3 BUILDING: YEARLY FUEL USE: REDUCTION FOR DHW: HEATING DOM. WATER DEGREE DAYS/HEATING GALLON: 2020 122 1669 122 1639 122 1165 122 684 122 356 122 279 122 369 122 601 122 1128 122 1510 122 2054 122 13,472 1,467 APARTMENT COMPLEX 11,000 10% NET HEATING |TOTAL USE USE (GALLONS) |(GALLONS) 1429 1551 1181 1303 1160 1282 825 947 484 606 252 374 197 320 261 383 425 548 798 920 1068 1190 1453 1576 9,533] 11,000 Page 14 5.4 ANIAK WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 11, 1990 Office Building General The Office building is also owned by Aniak Properties and is a wood building on piles with an enclosed skirt designed as a general office building. The building measures approximately 38 feet by 44 feet for a conditioned space of 1700 square feet. Completion date Is unknown. The building Is in good condition. Heating Eneroy Use The Office Bullding Is heated through the use of a single hydronic boiler which serves terminal heating units such as finned tube. The boiler is rated at 108 MBH output. Table 4 shows the estimated fuel use. Page 15 PHOTO 7: OFFICE BUILDING Building Exterior PHOTO 8: OFFICE BUILDING Boiler System Page 16 TABLE 4 BUILDING: OFFICE BUILDING YEARLY FUEL USE: 2,000 REDUCTION FOR DHW: 0% MONTH |HEATING DOM. WATER |NET HEATING |TOTAL USE DEGREE DAYS|HEATING USE (GALLONS) (GALLONS) iALLON JAN 2020 0 300 FEB 1669 0 248 MAR 1639 0 243 APR 1165 0 173 MAY 684 0 101 JUNE 356 0 53 JULY 279 0 41 AUG 369 0 55 SEP 601 0 89 OCT 1128 0 167 NOV 1510 0 224 DEC 2054 0 305 13,472 He) 2,000 Page 17 5.5 ANIAK WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 11, 1990 Elementary School Gym General The Gym Is a wood and steel structure with a slab-on-grade foundation. The roof and skin are composed of insulated metal panels. The building is used as a gymnasium/muttipurpose room. The majority of the floor area is the Gym. Small restrooms/locker rooms are adjacent with a fan room above. The approximate dimensions are 83 feet by 70 feet for an estimated conditioned area 6870 square feet. Estimated completion date of the Gym Is 1973 with major remodeling In 1982. The building Is in good condition. Heating Energy Use The Gym portion of the bullding Is heated by two forced air furnaces located at the celling of the Gym. The locker rooms and entries are heated by two forced air furnaces located In the fan room above the locker rooms. These furnaces are tated at 75 MBH each. The rating of the Gym furnaces are not known. Domestic water is heated through the use of an oll-fired water heater in the fan room area. Yearly fuel use Is estimated based on bullding size and conversations with the School District’s Facilities Manager. Monthly use Is calculated based on local degree days. The building is not heated or used during the summer months. The fuel use is shown In Table 5 which follows the descriptions of all of the school buildings. Page 18 PHOTO 9: ELEM, SCHOOL GYM Exterior Elevation PHOTO 10: ELEM. SCHOOL GYM Furnace System 5.6 ANIAK WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 11, 1990 Elementary School Classroom Building General The school Is a wood and steel structure with a slab-on-grade foundation. The building was built during various periods. Its original construction dates back to 1930 when the original BIA school was bullt. Additions were made in 1955 and 1979. The original BIA structure Is connected to the rest of the buliding with an enclosed corridor and now serves as a cafeteria and kitchen. Only that portion of the building has a basement. The approximate dimensions are 57 feet by 124 feet (main building) and 30 feet by 55 feet (BIA portion) for a total current floor area of approximately 8700 square feet. Heating Energy Use The building is heated by two fueFoll fired furnaces in one mechanical room and by another single furnace in a separate mechanical room. The rating of the two furnaces Is not known. the single furnace Is rated at 200 MBH output. Domestic hot water Is produced using an oll-fired water heater located In the mechanical room with the two fumaces. The estimates of fuel oil use are based on building size and conversation with School District officials. The estimated use follows in Table 5. Page 20 PHOTO 11: CLASSROOM BUILDING Building Exterior PHOTO 12: CLASSROOM BUILDING Existing Furnace System Page 21 5.7 ANIAK WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 11, 1990 Special Education Bullding General The building Is a wood structure with a slab-on-grade foundation. The bullding age Is not known. It Is used as special purpose classrooms. The approximate dimensions are 24 feet by 97 feet for a total current floor area of approximately 2300 square feet. Heating Energy Use The building is heated by a single oll-fired hydronic boller rated at 108 MBH. Domestic hot water Is produced using a shell-and-tube heat exchanger in the boiler. The estimates of fuel oil use are based on building size and conversation with School District officials. The estimated use follows in Table 5. Page 22 PHOTO 13: SPECIAL ED. BUILDING Building Exterior PHOTO 14: SPECIAL ED. BUILDING Existing Boiler System Page 23 5.8 ANIAK WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 11, 1990 Pre-school Bullding General The building is a wood structure with a wooden timber foundation. The building was bullt in approximately 1979. The approximate dimensions are 40 feet by 48 feet for a total current floor area of approximately 1900 square feet. Heating Energy Use The bullding Is heated by a single fuel-oll fired furnace rated at 85 MBH. Domes- tic hot water is produced using an oll-fired water heater located in the mechani- cal room with the furnace. The estimates of fuel oll use are based on building size and conversation with School District officials. The estimated use follows in Table 5. Page 24 PHOTO 15: PRE-SCHOOL BUILDING Building Exterior PHOTO 16: PRE-SCHOOL BUILDING Existing Furnace System Sh Gah Taka Page 25 TABLE 5 SCHOOL BUILDINGS FUEL OIL USE BUILDING: ELEM. SCHOOL GYM YEARLY FUEL USE: 9,000 REDUCTION FOR DHW: 10% JAN FEB 6 668 MAR 1639 APR 1165 MAY 684 JUNE 0 JULY 0 AUG 0 SEP 601 OCT 1128 NOV 1510 DEC 2054 390 981 1334 HEATING DOM. WATER |NETHEATING |TOTAL USE DEGREE DAYS eae USE (GALLONS) |(GALLONS) 8 $888 008 GREER 12,469 8,100 , BUILDING: ELEM. CLASSROOM BLDG. YEARLY FUEL USE: 10,000 REDUCTION FOR DHW: 10% Page 26 TABLE 5 (continued) SCHOOL BUILDING FUEL OIL USE BUILDING: PRESCHOOL BUILDING YEARLY FUEL USE: 2,000 REDUCTION FOR DHW: 10% MONTH |HEATING DOM. WATER |NETHEATING |TOTAL USE AL O IN. JAN 2020 22 302 324 FEB 1669 22 246 268 MAR 1639 22 241 263 APR 1165 22 165 187 MAY 684 22 87 110 JUNE 0 0 0 0 JULY 0 0 0 0 AUG 0 0 0 0 SEP 601 22 74 96 OCT 1128 22 159 181 NOV 1510 22 220 242 DEC 2054 22 307 329 12,469 200 1,800 2,000 BUILDING: SPECIAL ED. BLDG. YEARLY FUEL USE: 2, ia REDUCTION FOR DHW: 2020 0 324 FEB 1669 0 268 268 MAR 1639 0 263 263 APR 1165 0 187 187 MAY 684 0 110 110 JUNE 0 0 0 0 JULY 0 0 0 0 AUG 0 0 0 0 SEP 601 0 96 96 OCT 1128 0 181 181 NOV 1510 0 242 242 DEC 2054 0 329 329 12,469 0 2,000 2,000 Page 27 ANIAK WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 11, 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 28 ANIAK WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 11, 1990 7.0 CONCEPT DESIGN 71 System Narrative The current concept design includes two two-section flat plate heat exchangers at the power pliant. This approach will minimize piping changes to the existing system and allow completely independent generator operation as is now the case. No new radiators are needed. The flow will be without any booster pump on the engine side of the system. Since the actual operating points of the engine-mounted pumps are not known it is assumed that there Is some al- lowance for a low pressure drop heat exchanger. 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 maximum heat available at a 20 degree temperature drop. 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 bullding, and one for return to the power plant. See the attached Figure 2 for the system schematic. 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. Precautions must be taken to prevent overcooling of the generator jacket water and to prevent bullding system boilers from heating the waste heat distribution system. Each of these Issues can be addressed with controls and valving. They can also be automated to some degree but the solutions must be carefully balanced with the need for system simplicity. Page 29 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 DWN BY: MD. FIP. sywaot Lecenp 7 BE FRYER/PRESSLEY ENGINEERING |oym— SoHE Ag ®rst po Page 30 | CONCEPT 4 POWER PLANT ied OFFICE BUILDING Too APARTMENT COMPLEX 4 | CONCEPT 1 GYM BUILDING Cm) --—-— SPECIAL ED. BUILDING Lore {+ —~q— CLASSROOM BUILDING GENERATOR SYSTEM | —————————____—— DISTRIBUTION SYSTEM $$ = ae BUILDING SYSTEM ————————— PRESCHOOL BUILDING | CONCEPT 3 | ANIAK WASTE HEAT RECOVERY F|P system scHematic . FRYER/PRESSLEY ENGINEERING ANCHORIGE ALASKA b0503 = (907)561-1666 5/10/90 Page 31 7.2 7.3 74 75 ANIAK WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 11, 1990 Site Plan/Routing The routing will be as shown on the attached plan. In this proposed order, the Apartment Complex and the Office Building were connected first, then the Elementary School Gym and the Special Ed. Building, then the Classroom Bullding and the Pre-school Building were added. The final concept connected all of the bulldings Including the Kuspuk School District Administration Buliding. The routing Is shown on Figure 3. Generator Room Plans/Schematics See the attached Figures 4 and 5 for the design concept for changes to the power plant. User Building Plan/Schematics See the attached Figures 6 through 19 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 20. Page 32 VASVIV ‘XDVEOHONY 0O€ ZLINS @NNZAY TIVE LEV 099 ONIMAANIONA AMTSSHNd/YaAd MVINV 40 ALIO PRESCHOOL BLDG. | | NV 1d 4LIS IWILY¥d MAIN CLASSROOM > BUILDING > o> KUSPUK SCHOOL DISTRICT ee ADMINISTRATION BUILDING gt} 7 SPECIAL <> EDUCATION OFFICE BLDG. GYM/CLASSROOM | | CLASSROOM BUILDING APARTMENT COMPLEX g 5 3 133MLS HLYNO4 ee ebey NIAK LIGHT IND POWER CO. RUNWAY <® REPRESENTS PIPE NUMBER AS USED IN PIPE SIZING. (CAN BE FOUND IN "ROUGH DATA” SECTION OF REPORT APPENDIX) TO/FROM ARCTIC PIPE FUTURE GENERATOR | | iM Te SWITCHGEAR SPACE FOR FUTURE EQUIPMENT TNS | | | | | | en ~— EXISTING GENERATOR, TYPICAL OF 3. ws POWER PLANT Dm BY F|P Foor pian wx . FRYER/PRESSLEY ENGINEERING [tae— SNCHDRAGE flasks 50603 (907)561-1686 5/10/90 Page 34 TO ARCTIC PIPE B{ Ee & ~~ EXISTING TYPICAL EACH GENERATOR EXISTING GENERATOR (TYPICAL OF 3) POWER PLANT a FIP system scHematic oD FF FRYER/PRESSLEY ENGINEERING [i ANCHORAGE ALASEA 69503” (o07)5e1-1608 5/10/90 Page 35 SPACE FOR FUTURE EQUIPMENT | EXISTING FURNACE EXISTING BOILER TO/FROM ARCTIC PIPE SCHOOL DISTRICT BUILDING FIP secono FLooR PLAN . FRYER/PRESSLEY ENGINEERING 7 560 EAST 34th AVENUE SUITE 300 5/10/90 ANCHORAGE, ALASKA 9965603 (907)561—1666 Page 36 Le ebeg AIR SEPARATOR d|i VASVIY ‘ZOVEOHONY 006 ZLINS ZNNFAY Tive Lsvi 099 ONIMAANIONG AWISSHUd/UAAMA QILVWSHOS YF1I08 ONIGTINE “NINGV “LSIQ TOOHOS YNdSNY DOMESTIC WATER BOILER HEAT EXCHANGER g ; 3 EXISTING FURNACE IS , AIL 2-STAGE THERMOSTAT HEAT EXCHANGER SPACE FOR \ ROOM FUTURE EQUIPMENT TO/FROM X eh ARCTIC PIPE S—— ee APARTMENT COMPLEX FIP floor Pan . ERYER/PRESSLEY ENGINEERING ANCHORAGE, ALASKA 99503 (907)561-1666 Page 38 d31108 0 (907)561-1666 ddld OILOUV OL ? < bd 6 ddid pt OILONV Wwous 7 Oo Ss ~ I fx S Oo Z, fx Fa = WY ~” ea jaa A, PI - ma ky, 560 EAST 34th AVENUE SUITE 300 ANCHORAGE, ALASKA 99603 APARTMENT COMPLEX BOILER SCHEMATIC FIP Page 39 PIPING HUNG UNDER STRUCTURE TO/FROM ——— ARCTIC PIPE BOILER ROOM SPACE FOR FUTURE EQUIPMENT OFFICE BUILDING FIP Floor Plan . ERYER/PRESSLEY ENGINEERING ANCHORAGE, ALASKA 99503 (907)561-1666 Page 40 HEAT EXCHANGER BOILER OFFICE BUILDING FIP soer scHematic . FRYER/PRESSLEY ENGINEERING ANCHORAGE, ALASKA 99503 (907)561—1666 Page 41 i | ><} + FROM ARCTIC PIPE | (Q_Spe<—— fo acne pire DWN BY: MD. CKD BY: VW DATE: 5/10/90 MECHANICAL ROOM OVERHEAD 10/FROM ARCTIC PIPE NEW COIL EXISTING FURNACE AT HIGH CEILING (TYP. OF 2) FURNACE (TYP. OF 2) MD CKD BY: V DATE: 5/10/90 MULTIPURPOSE BUILDING FP Ftoor Pian . FRYER/PRESSLEY ENGINEERING ANCHORAGE, ALASKA 99603 (907)561-1666 Page 42 ey ebty di Tre Lsva 099 VASVIV ‘ZDVAOHONV ONIMFINIONA AWISSHNd/ MAMA * LNSWSONVEYV SOVNYNS WAD IOOHOS AYVLNAWS13 g : 3 NEW WORK =o NEW DUCT TRANSITION, APPROX. 16” X 16” TO 24” X 24” EXISTING OIL—FIRED FURNACE (TYP. OF 4) (Ue es 2-STAGE THERMOSTAT ©) NEW CONTROL VALVE TO/FROM ARCTIC PIPE REMOVE EXISTNG FILTER HEATING COI (TYP. OF 5) BASEMENT LEVEL GROUND LEVEL ANCHORAGE, ALASKA 99503 a l EXISTING FURNACE WITH NEW HYDRONIC TO/FROM ARCTIC PIPE ELEMENTARY SCHOOL CLASSROOM BLDG. F|P Floor Pian . ERYER/PRESSLEY ENGINEERING (907)561-1666 =F 2-1/2: DYN BY: MD CKD BY: U DATE: 5/10/90 Page 44 ne 2-STAGE ae Se THERMOSTAT NEW CONTROL | VALVE TO/FROM ARCTIC PIPE NEW DUCT TRANSITION, NEW WORK i J APPROX. 16” X 16” TO 24” X 24” REVOVE EXISTING FILTER 1. EXISTING OIL-FIRED FURNACE (TYP. OF 3) ©) ELEMENTARY SCHOOL CLASSROOM BLDG. DWN BY F|P Furnace ARRANGEMENT cep 5 . FRYER/PRESSLEY ENGINEERING [tae— Stance ALASKA po60s * ” (oo7)se1-1000 5/10/90 Page 45 BOILER ROOM \ SPACE FOR A. FUTURE EQUIPMENT r TO/FROM EXISTING foes BOILER | ARCTIC PIPE SPECIAL EDUCATION BUILDING FIP Floor Pan . FRYER/PRESSLEY ENGINEERING ANCHORAGE, ALASKA 99603 (907)561-1666 Page 46 YOM MIN Sennen eee YSONVHOXA LV3SH ddld OILOYV OL jt | > GC Adid OWOYVY WON $-- ><} > o| I (907)561-1666 Y31108 Oo Zz — o & e3) vad eH oO Z ea fa | YW Wn & a a > fi or Fu ! i : © = a — 5 a Zz S — <x CS =) (=) Lu = = 5 Ld a. n iS) _— <x = uJ x GS n a ui a S ao YOLVYVdAS HIV FIP Page 47 EXISTING FURNACE lll FURNACE ROOM NEW COIL TO/FROM ARCTIC PIPE — DWN BY: MD. CKD BY: TV DATE: 5/10/90 PRESCHOOL FIP Froor pian . FRYER/PRESSLEY ENGINEERING ANCHORAGE, ALASKA 99503 (907)561—1666 ‘Page 48 NEW FILTER NEW HYDRONIC COIL SERVED BY WASTE HEAT RECOVERY SYSTEM. PRE-SCHOOL BUILDING FP typical FURNACE MODIFICATION SCHEMATIC . ERYER/PRESSLEY ENGINEERING ANCHORAGE, ALASKA 99503 (907)561-1666 5/10/90 Page 49 IN sre ter |o| | SUPPLY AND RETURN PIPING. ARCTIC PIPE FIP cross section FRYER/PRESSLEY ENGINEERING 560 EAST 34th AVENUE SUITE 300 ANCHORAGE, ALASKA 99603 (907)561-1666 Page 50 BACKFILL, COMPACT TO 95% 6” MIN. BEDDING. BEDDING, COMPACT TO 95% 6” MIN. BEDDING. 76 ANIAK WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 11, 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 minli- 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 51 ANIAK WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 11, 1990 Circulation Pumps: The primary loop circulation pump shall be a base- mounted centrifugal pump capable of 140 GPM at 106 feet of head. 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 52 ANIAK WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 11, 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. 16020- 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. tt also covers which area of the Specifications will define the requirements for equipment or installations which must be coordinated with other building trades. 16021- 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 tem 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 53 ANIAK WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 11, 1990 16032- 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. 16111- CONDUIT All types of raceways and their associated appurtenances will be covered in this Section of Division 16. Galvanized rigid steel conduit, PvVC-coated galvanized rigid steel condult, Intermediate metallic con- duit, electrical metallic tubing, flexible metal condult and liquid-tight flexible Condult will be specified. Fittings, couplings, grounding and where each type of raceway may be used will be specified. 16120- 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. 16131- PULL BOXES AND JUNCTION BOXES The 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. 16147- DEVICE PLATES AND COVERS Surface mounted boxes shall be galvanized steel plates. Weatherproof Installations will have gasketed metal plates. Page 54 16155- 16161- 16164- 16170- 16190- ANIAK WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 11, 1990 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 circu breakers or motor circult protectors and that are UL listed for the application, will be acceptable. Combination starters utilizing fuses will not be allowed. GROUNDING This Section expands on the National Electrical Code requirements. BRANCH CIRCUIT PANELBOARDS Branch circult breakers required to connect new equipment to existing panelboards will be specified in this Section. All circult breakers will be bolt-on molded case circult breakers of the rating and configuration necessary to serve general branch circuits and other defined loads. 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. 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 55 ANIAK WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 11, 1990 8.0 ECONOMIC DATA 8.1 8.2 Current Fuel Oil Costs Fuel oll purchases are made in bulk during the summer months when fuel is barged in. The fuel can be purchased from suppliers such as Pacific Alaska Fuel Services. In 1989, prices were $1.12/gallon for Aniak Properties and $1.166/gallon for the Kuspuk School District. 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 bulldings. 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 ls, the nearest bullding was modeled as being connected first. In this proposed order, the Apartment Complex and the Office Bullding were connected first, then the Elementary School Gym and the Special Ed. Bullding, then the Class- room Building and the Pre-school Building were added. The final concept con- nected all of the buildings including the Kuspuk Schoo! District Administration Building. The results of the calculations based on the most recent fuel oll costs were as fol- lows: 1 11533 $12,900 2 18,876 $21,500 3 20,205 $23,000 4 18047 $20,500 Page 56 8.3 8.4 ANIAK WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 11, 1990 Summary Cost Estimate The assumptions for the cost estimate was that bidding would take place in April of 1990. Prevalling 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 bulldings, the cost estimate Is organized In an progressive alternate form. Energy Authority SIA (Supervision, Inspection, and Administration) and design costs are included in the figures shown below. CONCEPT = =COST 1 $353,700 2 $519,400 3 $704,700 4 $897 600 Estimated Component Life and Maintenance Costs The following estimates of maintenance cost were made based on the In- cremental cost of technician who |s already on-site. Assumptions were made for each of the pieces of equipment regarding frequency of inspection and repair. The total yearly maintenance cost will depend on the scope of installation. The costs for all buildings connected Is shown. ttem Life (vrs) Maint. Cost ($/Yp Heat Exchangers 20 $126 (each, 6 total Circulation pumps 16 $112 (each, 1 total Arctic Pipe 15 $700 (total Interior piping 15 $70 (each location, 8 total) Interior valves 15 $140 (each location, 8 total) Expansion Tank 15 $70 (each, 1 total) Air Separator 15 $35 (each, 1 total) Glycol 15 $300 (total TOTAL (base bid) $3653/year Page 57 ANIAK WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 11, 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 bulldings 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 alr 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 58 9.3 ANIAK WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 11, 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. Altematives are an electrically operated vaive 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 bulldings. Its purpose Is to transfer and control the fluid to the com- ponents of the system. Fallure Mode and Impact For each of the components identified above, the likely mode or modes of failure is discussed. These 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) Fallure Mode: The pump assembly can fall by the fallure of its in- dividual components. These include shaft seals, shaft bearings, motor, impeller, or casing. Impeller or casing fallure 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 59 ANIAK WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 11, 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 fallures in their early stages would have litle effect on operation but could eventually reduce heat recovery to zero after complete fallure. 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 fallure), 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 Fallure Mode: Since there are no moving parts, the fallure 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 ls also unlikely to fall 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 falled 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 falled gaskets, the system could be In- capacitated. Page 60 ANIAK WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 11, 1990 Environmental Impact: A major loss of the fluid, 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 falled, 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 fallure. 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 ls 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 fallure 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: lf 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 fallure, 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 61 ANIAK WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 11, 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) Fallure 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: ‘ Fallure through leakage would drain the fluid and cause a low water shutdown of the generator. Fallure 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 failure occurred which Is not the highest probability failure. Required Immediate Actions: The radiator should be lsolated and an altemate radiator used for cooling until repairs can be made. Control Vaive(s) Fallure 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 fallure 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 62 ANIAK WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 11, 1990 Generator Operational Impact: Failure of the operators will normally result in loss of control. Often time these fallures 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 fallure 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 fallure Is discovered. If the fallure Ils 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) Fallure 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: Tne 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/vaives 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 fallures 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 63 ANIAK WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 11, 1990 Environmental Impact: Minor. Required Immediate Actions: Isolate the leaking valve, shut off pump if fluid loss Is significant. 9.4 Fallure Frequency and Cost Frequencies of fallure 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. Aone day weather delay Is Included for all winter repalr 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. QA Pwon-> sen > Circulation pump(s) Most common failure: Shaft seal, shaft bearings, or motor. Frequency of Occurence: 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 64 ANIAK WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 11, 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 fallure: Motor fallure Frequency of Occurence: 0.1 per year Repair Cost: $1800/occurrence Estimate of Down Time: 5 days Effects of System Life on Frequency: Increased probability. Page 65 ANIAK WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 11, 1990 Control Vaive(s) Most common failure: Electric operator (seal for Amot valve) Frequency of Occurrence: 0.33/year (0.1 for Amot vaive) Repair Cost: $1800/occurrence Estimate of Down Time: 3 days Effects of System Life on Frequency: Increasing likellhood 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/vaives Most common failure: 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 66 ANIAK WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 11, 1990 9.5 Design Decisions Impact on current concept design from the above fallure analysis Includes the recommenda- tion that stack gas heat exchangers not be used in a location where the operator Is a not a skilled maintenance person. This recommendation ls due to the sensitivity of the equipment to operator error and the delay that could be encountered in returning the system to service. Other recommendations 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 bullding connected the waste heat recovery system use a heat exchanger. In the event of a distribution piping failure, the bullding’s heating system would continue to operate without in- terruption. Page 67 ANIAK WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 11, 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 Aniak. 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 Aniak. The first graph entitled "Heat Avallable Vs. Heat Required" shows the relationship between these two quantities for each month of a year. The second highest line represents the heat available from the power plant in terms of equivalent gallons of fuel oll. This energy available is based on Concept | since there is some variation in energy avallability be- tween concepts. Each of the other three lines represent a construction option: the con- cept 1, the concept 3, and the concept 4. The graph shows that only Concept 1 re- quires less heat than is available. The other concepts shown require more heat than is available for most of the year. The second graph Is entitled “Fuel Oil Displaced” and shows the amount of recovered energy in equivalent gallons of fuel oll for each of the three construction options for the year. The graph shows a significant additional fuel oll displacement between Concepts land 3. It also shows that Concept 4 actually displaces less fuel oil than Concept 3. This ls due to the fact that nearly all heating energy is being used and there Is additional heat loss added to run arctic pipe to the Kuspuk School District Administration bullding. Page 68 ANIAK WASTE HEAT RECOVERY HEAT AVAILABLE VS. HEAT REQUIRED FUEL OIL EQUIVALENT (GALLONS) 7,000 6,000+ 5,0007 4,000 3,000 2,000 1,000 oO 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 —=&_ HEAT REQ. - 4 5/10/90 ANIAK WASTE HEAT RECOVERY FUEL OIL DISPLACED FUEL OIL EQUIVALENT (GALLONS) JAN FEB MAR APR MAY JUNE JULY AUG SEP OCT NOV DEC MONTH OF THE YEAR LEGEND MMM coNcePpT1 WA concepT3 EHH CONCEPT 4 5/10/90 ANIAK WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 11, 1990 APPENDIX V5 Calculations 2. Contact Names 3. Cost Estimates 4. Raw Data ANIAK WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 11, 1990 Calculations ANIAK WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 11, 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. Tne 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 oil use for each month of the “average” year. It is also assumed that the fuel oll use reported here Is only for heating energy that can be displaced by waste heat recovery. It would not include fuel oll 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 oll 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 avaliable 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. ANIAK WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 11, 1990 When calculating the energy demand for the bulldings based on their fuel oll use, It Is as- sumed that each gallon of fuel oll 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 available at the power plant on an hourly basis. The system heat loss Is subtracted from the gross amount, leaving the amount avaliable for bullding 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 avallable 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 avaliable, then all of the bulld- 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. ANIAK WASTE HEAT RECOVERY ESTIMATION PAGE 1 CONCEPT 1 WASTE HEAT UTILIZATION SIMULATION WORK SHEET. Location: ANIAK Date:February 9, 1998 Heat rate: 2248 Btu/kwh produced System loss: 183,868 Btu/hour (FOR ALL SYSTEMS CONNECTED) Total Gen.: 1,998,576 kwh/year Assumed diurnal heat Power plant monthly generation: demand variation: Monthly JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC CHECKSUM Fraction:8.18584 8.68531 6.88169 8.87892 6.67327 6.86132 6.86823 6.68857 6.87322 6.89175 6.89682 8.18379 1 Winte Summer Hour Kwh: 211,535 178,508 163,288 157,748 146,458 122,568 136,388 161,845 146,358 183,375 191,921 267,448 1,998,576 Diurnal 6.8494 6.6494 1 variation 8.038 6.038 6.038 6.038 6.045 6.045 6.045 6.045 6.045 6.845 6.038 8.038 6.0477 6.6477 2 6.036 6.036 6.036 6.036 8.040 6.048 6.040 6.040 6.046 6.048 6.036 6.036 8.8468 6.6468 5 6.034 6.034 6.034 6.034 6.036 68.036 6.036 6.036 6.036 6.036 6.034 6.034 8.0443 6.8443 4 6.034 6.834 6.034 6.034 6.035 6.035 6.035 6.835 6.035 6.035 6.034 6.034 6.8428 6.6428 5 6.033 8.833 6.033 6.033 6.035 8.035 6.035 6.035 6.035 8.835 6.033 6.033 6.8414 6.0414 6 6.034 6.034 6.034 6.034 6.038 6.038 6.038 6.038 6.038 6.038 6.034 6.034 6.6401 6.6481 7 6.038 6.038 68.038 6.0538 8.038 68.838 6.038 6.038 6.838 6.838 6.038 6.038 8.9398 6.0398 8 8.042 8.042 6.042 6.042 6.040 6.0480 6.046 6.046 6.048 6.048 6.042 8.042 8.9381 6.0381 9 6.042 6.042 6.042 6.042 6.045 68.045 6.045 6.045 6.045 6.845 6.042 8.042 8.8374 6.0374 16 6.847 6.047 6.647 6.647 68.047 8.047 6.647 6.047 6.047 6.047 6.647 6.847 6.0378 6.8576 nN 6.848 6.048 6.048 6.048 6.046 8.048 8.040 6.040 6.046 6.048 8.648 6.848 6.0367 6.8367 12 6.047 6.047 6.047 6.047 6.048 68.048 6.048 6.048 6.048 6.048 6.047 6.047 8.0367 6.8367 13 6.045 6.045 6.045 6.045 6.058 8.058 6.650 6.058 6.058 8.858 6.045 6.045 6.8378 6.6376 14 6.047 6.047 6.647 6.047 6.052 6.652 6.052 6.852 6.852 6.852 6.647 6.847 8.8374 6.8374 15 6.048 6.048 6.648 6.048 6.056 6.058 8.056 6.058 6.058 6.656 6.648 6.048 8.0381 6.0381 16 6.648 6.048 6.048 6.048 6.050 6.050 8.050 8.058 8.058 8.058 6.048 8.848 6.8398 6.0398 17 6.049 6.049 6.849 6.049 6.845 6.045 6.045 6.045 6.645 6.045 6.849 6.049 6.0481 6.6401 18 6.046 6.046 6.046 6.046 6.047 6.047 6.047 8.047 6.047 6.047 8.046 6.846 8.0414 6.8414 19 6.043 6.043 6.043 6.043 6.058 8.058 6.058 6.056 6.058 6.058 6.643 8.643 6.0428 6.6428 26 6.038 6.838 68.038 8.038 8.045 6.045 68.045 6.045 6.045 6.045 6.038 8.638 6.0443 6.0443 21 Ee 6.038 6.038 6.038 6.038 6.041 6.041 6.041 6.041 6.641 6.041 8.838 6.638 8.0468 6.0468 22 6.041 6.041 6.041 6.041 6.041 6.041 6.041 6.041 6.041 6.041 6.041 8.841 6.8477 6.8477 23 6.045 6.045 6.045 6.045 6.041 6.041 6.041 8.041 6.041 6.041 6.045 6.845 6.0494 6.8494 24 6.046 6.046 6.046 6.046 6.043 6.043 6.043 6.043 6.043 8.045 8.040 6.048 Building use per month, gallons of fuel oil KUSPUK SCH. DIST. BLDG. 6 6 6 6 6 6 6 6 6 6 8 8 6 APT. COMPLEX 1429 1181 1168 825 484 252 197 261 425 798 1668 1453 9,533 OFFICE BLDG. 308 248 243 173 181 53 4 55 89 167 224 305 2,008 ELEM. SCH. GYM 6 6 6 6 6 6 6 6 6 6 6 6 6 ELEM. CLASSROOM 6 6 6 6 6 6 6 6 6 6 6 6 6 SPECIAL ED. BLDG. 6 8 8 6 6 6 6 6 4 6 6 6 6 ANIAK WASTE HEAT RECOVERY ESTIMATION PRESCHOOL BLDG. BUILDING 8 BUILDING 9 TOTAL 1728.84 JAN 1 498968. 2 377755. 3 346602. 4 346602. 5 331825. 6 346662. 7 498988. 8 471214. 9 471214. 18 549697. 11 564674. 12 549897. 13 517944, 14 549697. 15 564674. 16 564674. 17 586256. 18 533528. 19 486791. 28 498988. 21 468988. 22 455638. 23 517944. 24 440061. 1428.96 FEB 294086. 268976. 243866. 243866. 231311. 243866. 294886. 344305. 344305. 407086. 419635. 407086. 381976. 467888. 419635. 419635. 432198. 394525. 356868. 294086. 2940886. 331758. 381976. 319195. PAGE 2 1482.93 997.587 585.214 304.592 238.845 315.558 514.588 965.655 1292.33 MAR 273883. 249836. 225796. 225796. 213767. 225798. 273883. 321976. 321976. 382892. 394115. 382092. 358846. 382892. 394115. 394115. 406139. 378869. 333999. 273883. 273883. 389953. 358846. 297929. APR 258381. 235151. 211928. 211928. 208305. 211928. 258381. 304842, 304842. 362919. 374534. 362919. 339688. 362919. 374534. 374534. 386149. 351304. 316458. 258381. 258381. 293227. 339688. 281612. MAY 362278. 248358. 285222. 194438. 194438. 226798. 226798. 248358. 302278. 323846. 248358. 334629. 356197. 377765. 356197. 356197. 382278. 323846. 356197. 362278. 259142. 259142. 259142. 286718. JUN 223115. 177991. 141892. 132867. 132867. 159942. 159942. 177991. 223115. 241165. 177991. 258198. 268239. 286289. 268239. 268239. 223115. 241165. 268239. 223115. 187816. 187616. 187816. 205066. JUL 268918. 218697. 178528. 168485. 168485. 198612. 198612. 218697. 268918. 288994. 218697. 299837. 319122. 339287. 319122. 319122. 268916. 288994. 319122. 268916. 228746. 228748. 228748. 248825. AUG 358648. 291346. 243912. 232853. 232853. 267629. 267629. 291346. 350648. 374357. 291346. 386216. 489933. 433650. 409933. 409933. 358648. 374357. 489933. 358648. 303285. 303205. 383285. 326922. SEP 381946. 248063. 284957. 194188. 194188. 226518. 226518. 248663. 381946. 323499. 248863. 334276. 355829. 377382. 355829. 355829. 381946. 323499. 355829. 381946. 258846. 258848. 258848. 288393. 1E+B7 8175452 7643271 7234921 6844884 5011841 6072228 7964736 6837211 Heat demand by hour by month (BTU) JAN 1 280841. 2 278996. 3 261336. 4 252038. 5 243277. 6 235216. 7 228804. 8 221777. 9 216658. 16 212719. 11 210057. 12 268714. 13 208714. 14 216057. FEB 232126. 223996. 216005. 208328. 201878. 194415. 188455. 183388. 1798768. 175821. 173621. 172518. 172516. 173621. MAR 227899. 219918. 212671. 284526. 197416. 196875. 185823. 179969. 175809. 172619. 178459. 169368. 169368. 178459. APR 162052. 156371. 158797. 145432. 148376. 135725. 131564. 127971. 125612. 122744. 121288. 128432. 128432. 121268. MAY JUN JUL AUG SEP 95864.6 49479.2 38799. 51259.2 83591.8 91732.3 47744.8 37439.8 49462.4 88661.6 88462.1 46042.7 36104.3 47699.1 77786.1 85314.9 44484.7 34819.8 46082.1 75018.7 82349.3 42861.1 33689.5 44483.1 72411. 79628.6 41448.9 32495.8 42931.7 70811.6 7179.5 48176.4 31499.5 41615.5 67265.1 75671.6 39673.2 38639.2 40478.9 66011.6 75336.2 38170.8 29938.9 39543.2 64485.6 72685.5 37477.4 29387.8 38825.6 63315.5 71104.4 37868.4 29826.8 38339.8 62523.2 78649.6 36771.6 28834.4 38894.5 62123.2 78649.6 36771.6 28834.4 38894.5 62123.2 71184.4 37888.4 29826. 38339.8 62523.2 ocT 424633. 357118. 383186. 289683. 289683. 330112. 338112. 357118. 424633. 451639. 357118. 465142. 492147. 519153. 492147. 492147. 424633. 451639. 492147. 424633. 376621. 378621. 370621. 397627. 9678882 ocT 156865. 151366. 145976. 148777. 135883. 131386. 127353. 123874. 121611. 118815. 117528. 116578. 116578. 117328. NOV 354025. 325760. 297496. 297496. 283364. 297496. 354025. 418554, 410554, 481215. 495347. 481215. 452951. 481215. 495347, 495347. 509486. 467883. 424686. 354825. 354025. 396422. 452951. 382289. 9754382 NOV 29932. 282573. 195351. 188461. 181852. 175826. 165781. 161949. 159618. 157628. 156816. 156616. 157826. 1758.21 DEC 397458. 366908. 336356. 3363568. 321875. 336350. 397458. 458558. 458550. 534925. 550208. 534925. 584375. 534925. 558200. 550208. 565475. 519656. 473825. 397458. 397458. 443275. 584375. 428000. 1E+87 DEC 285611. 275599. 265774. 256319. 247489. 239211. . 231877. 225544. 228338. 216332. 213625. 212258. 212258. 213625. CONCEPT 1 11,533 ANNUAL 2.96E+69 ANIAK WASTE HEAT RECOVERY ESTIMATION 15 212719. 16 216658. 17 221777. 18 228004. 19 235216. 26 243277. 21 252838. 22 261336. 23 278996. 24 280841. 175821. 179876. 183388. 188455. 194415. 261878. 288328. 216885. 223998. 232126. 172619. 175889. 179976. 185823. 196875. 197416. 204526. 212871. 219918. 227899. PAGE 3 122744, 125812. 127971. 131564. 135725. 148376. 145432. 158797. 156371. 162852. 5683262 4697451 4611899 3279379 Heat delivered by hour by month JAN 1 288841. 2 278996. 3 261336. 4 252038. 5 243277. 6 235216. 7 228684. 8 221777. 9 216658. 16 212719. 11 216857. 12 288714. 13 288714. 14 218857. 15 212719. 16 216658. 17 221777. 18 228664. 19 235216. 26 243277. 21 252838. 22 261336. 23 278996. 24 280841. 5683262 FEB «MAR-APR 232126. 223998. 216085. 268326. 261878. 194415. 188455. 183388. 179876. 175821. 173621. 172516. 172518. 173621. 175621. 179876. 183388. 188455. 194415. 261878. 288328. 216885. 223998. 232126. 4697451 227899. 219918. 212871. 284526. 197416. 198875. 185823. 179969. 175889. 172619. 178459. 169368. 169368. 178459. 172619. 175889. 179976. 185823. 198875. 197416. 204526. 212871. 219918. 227899. 162852. 156371. 156797. 145432. 140376. 135725. 131564. 127971. 125612. 122744. 121288. 128432. 128432. 121268. 122744. 125812. 127971. 131564. 135725. 140376. 145432. 158797. 156371. 162852. 72885 .5 37477.4 29387.8 38825.7 63315.5 118815. 73336.2 38178.8 29938.9 39543.2 64485.6 121811. 75871.6 39673.3 30639.2 40478.9 66011.6 123874. T1179.5 40176.4 31499.5 41615.5 67865.1 127353. 79628.6 41440.9 32495.8 42931.7 76011.6 131381. 82349.3 42861.1 33689.5 44483.1 72411.6 135883. 85314.9 44404.7 34819.8 46882.1 75018.7 148777. 88462.1 46842.7 36104.3 47699.1 7786.1 145976. 91732.5 47744.8 37439.8 49462.4 88661.6 151366 95064.6 49479.2 38799.8 51259.2 83591.8 156865. 159818. 161949. 165781. 178436. 175826. 181852. 188481. 195351. + 262573. 289932. 216332. 228330. 225544. 231877. 239211. 247469. 256319. 265774. 275599. 285611. CONCEPT 1 ANNUAL 1923782 1881289 785159. 1837311 1691611 3174489 4248505 5779789 1. 15E+09 (BTU) MAY JUN JUL AUG SEP ocT 95864.6 49479.2 38799.8 51259.2 83591.8 156865 91732.3 47744.8 37439.8 49462.4 88661.6 151366. 88462.1 46042.7 36104.3 47699.1 77786.1 145976. 85314.9 44484.7 34819.8 46882.1 75618.7 148777. 82349.3 42861.1 33609.5 44483.1 72411.8 135883. 79628.6 41446.9 32495.8 42951.7 76611.6 131388. TIN79.5 48176.4 31499.5 41615.5 67865.1 127353. 75671.6 39873.2 36639.2 48478.9 66811.6 123874. 73336.2 38176.6 29938.9 39543.2 64485.6 121611. 72085.5 37477.4 29387.8 38825.6 63315.5 118815. 71184.4 37668.4 29828.6 38339.8 62523.2 117328. 76649.6 36771.6 28834.4 38894.5 62123.2 116578. 78649.6 36771.6 28834.4 38894.5 62123.2 116578. 71184.4 37668.4 29828.8 38339.8 62523.2 117328. 72885 .5 37477.4 29387.8 38825.7 63315.5 118815. 73336.2 38176.6 29938.9 39543.2 64485.6 121811. 75871.6 39873.3 38639.2 48478.9 66811.6 123874. TIN79.5 48176.4 31499.5 41615.5 67865.1 127353. 79628.6 41448.9 32495.8 42931.7 76811.6 131381. 82349.3 42861.1 33609.5 44483.1 72411. 135883. 85314.9 44404.7 34819.8 46882.1 75618.7 146777. 88462.1 46042.7 36104.3 47699.1 77786.1 145978. 91732.3 47744.8 37439.6 49462.4 88661.6 151366. 95064.6 49479.2 38799.8 51259.2 83591.8 156865. NOV + 289932. 262573. 195351. 188461. 181852. 175826. 178436. 165781. 161949. 159618. 157626. 156616. 156616. 157628. 159618. 161949. 165781. 176436. 175826. 181852. 188481. 195351. 282573. 209932. DEC 285611. 275599. 265774. 256319. 247469. 239211. 231877. 225544. 228338. 216332. 213625. 212258. 212258. 213625. 216332. 2283368. 225544. 231877. 239211. 247489. 256319. 265774. 275599. 285611. ANNUAL 4611899 3279379 1923782 1081289 785159. 1857311 1691611 3174409 4248385 5779789 1. 15E+09 FUEL OIL CONSUMPTION DISPLACED (GALLONS) JAN 1729 FEB «MAR-APR 1429 1483 998 MAY JUN JUL AUG SEP OCT NOV DEC ‘ANNUAL 585 305 239 316 515 966 1292 1758 11,533 ANIAK WASTE HEAT RECOVERY ESTIMATION PAGE 1 CONCEPT 2 WASTE HEAT UTILIZATION SIMULATION WORK SHEET. Location: ANIAK Date:February 9, 1998 Heat rate: 2248 Btu/kwh produced System loss: 267,806 Btu/hour (FOR ALL SYSTEMS CONNECTED) Total Gen.: 1,998,576 kwh/year Assumed diurnal heat Power plant monthly generation: demand variation: Monthly JAN FEB MAR APR MAY JUN JUL AUG ‘SEP ocT NOV DEC CHECKSUM Fraction:8.10584 6.68531 6.68169 6.87892 6.67327 6.66132 6.66823 6.68857 6.87322 6.09175 6.69682 8.10379 1 Winte Summer Hour Kwh: 211,535 178,508 163,286 157,748 146,458 122,568 136,380 161,845 146,358 183,375 191,921 267,448 1,998,576 Diurnal 6.8494 6.0494 1 variation 6.038 6.038 6.038 6.038 6.045 6.045 6.045 6.045 6.045 6.845 6.038 6.838 6.0477 6.0477 2 6.036 6.036 6.036 6.036 6.040 6.040 6.040 6.040 6.046 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 8.036 6.036 6.036 6.034 6.034 6.0443 6.8443 4 6.034 6.034 6.034 6.034 6.035 8.835 8.035 6.055 6.035 6.035 6.034 6.034 6.0428 6.0428 5 6.033 6.033 6.033 6.033 6.035 6.835 6.035 8.835 8.835 6.035 6.033 6.633 6.0414 6.0414 6 6.034 6.034 6.034 6.034 6.038 6.038 6.038 6.038 6.858 6.038 6.034 6.034 6.0401 6.8481 7 6.038 6.038 6.038 6.038 6.038 6.038 8.038 6.038 6.838 6.038 6.838 6.838 6.0398 6.0396 8 6.042 6.042 6.042 6.042 6.040 6.040 6.040 6.048 6.040 6.040 6.042 6.042 6.0381 6.0381 9 8.042 8.042 6.042 6.042 6.045 6.045 6.045 6.045 6.045 6.045 6.042 6.042 6.0374 6.0374 18 6.047 6.047 6.647 6.047 6.047 6.047 6.047 6.047 6.647 6.047 6.047 8.047 8.0378 6.8378 " 6.048 6.048 6.648 6.048 6.048 6.048 6.040 6.046 6.040 6.048 6.648 6.048 8.0367 6.8367 12 6.047 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 8.045 6.045 6.045 6.045 6.058 6.058 6.058 6.050 6.058 6.050 6.645 6.845 6.0378 6.0376 14 6.047 6.047 6.047 6.047 6.852 6.052 6.052 6.052 6.052 6.052 6.047 6.847 6.8374 6.0374 15 6.048 6.048 6.048 6.048 6.058 6.058 8.058 8.058 6.058 6.058 6.048 6.048 6.0381 6.0381 16 0.048 6.048 6.048 6.048 6.050 6.050 8.058 6.058 6.058 6.050 6.048 6.048 6.0398 6.6398 17 6.049 6.049 6.049 6.049 6.045 6.045 6.045 6.045. 6.045 6.045 6.849 8.849 6.0401 6.6401 18 6.046 6.046 6.046 6.046 6.047 6.047 6.047 6.047 6.847 6.047 6.046 6.846 6.0414 6.0414 19 6.043 6.043 6.043 6.043 6.058 6.056 6.058 6.050 6.058 8.050 6.043 8.043 6.0428 6.428 28. 6.038 6.038 6.038 6.038 6.045 6.045 68.045 6.045 6.045 6.045 6.038 0.038 6.0443 6.0443 21 6.038 6.038 6.038 6.038 6.041 6.041 6.041 6.041 6.041 0.841 6.038 6.038 6.0468 6.0468 22 6.041 6.041 6.041 6.041 6.041 6.041 6.041 6.041 6.041 6.041 6.041 8.841 6.0477 6.0477 23 8.045 6.045 6.045 6.045 6.041 6.041 6.041 6.041 6.041 6.041 6.045 8.045 6.0494 6.0494 24 0.040 6.048 6.040 6.040 6.043 0.043 6.043 6.043 6.043 6.043 6.048 8.040 Building use per month, gallons of fuel oil KUSPUK SCH. DIST. BLDG. 8 8 6 6 6 6 6 6 6 6 6 6 6 APT. COMPLEX 1429, «1181-1168 825 484 252 197 261 425 798 «= 1868 )=—:1453 9,533 OFFICE BLDG. 308248 2437s 53 “1 55 99 = 167, 224 385 2, 88 ELEM. SCH. GYM 1312 1084 1865757 444 6 6 6 398 733 981 «1354 8, 188 ELEM. CLASSROOM 6 6 6 6 6 6 6 6 6 6 8 6 6 SPECIAL ED. BLDG. 302002462 165 87 6 6 6 " 159 «228s 387—s«1, 888 ANIAK WASTE HEAT RECOVERY ESTIMATION PAGE 2 CONCEPT 2 PRESCHOOL BLDG. 6 6 8 8 8 8 6 6 6 6 6 6 6 BUILDING 8 6 8 6 6 6 6 6 4 6 6 8 6 6 BUILDING 9 6 6 8 8 6 6 8 8 6 6 6 6 8 6 8 8 8 6 8 6 6 6 6 6 6 a TOTAL 3342.45 2758.81 2788.17 1919.27 1116.71 304.592 238.845 315.558 979.266 1857.13 2492.91 3399.59 21,433 JAN FEB MAR APR MAY JUN JUL AUG SEP ocT NOV DEC 1 384988. 278086. 249883. 234381. 278278. 199115. 244918. 326648. 277946. 406633. 330825. 373450. 2 353755. 244976. 225836. 211151. 224358. 153991. 194697. 267346. 224863. 333118. 381760. 342900. 3 322602. 219866. 281798. 187928. 181222. 117892. 154528. 219912. 188957. 279186. 273496. 312358. 4 322682. 219866. 261798. 187928. 176438. 188867. 144485. 208053. 178188. 265683. 273496. 312358. 5 387825. 287311. 189767. 176385. 178438. 188867. 144485. 268053. 178188. 265603. 259364. 297875. 6 322682. 219866. 281798. 187928. 262798. 135942. 174612. 243629. 282518. 386112. 273496. 312358. 7 384908. 278086. 249883. 234381. 242798. 135942. 174612. 243629. 282518. 306112. 338825. 373450. 8 447214. 320305. 297976. 288842. 224358. 153991. 194697. 267346. 224863. 333118. 386554. 434558. 9 447214. 328385. 297976. 280842. 278278. 199115. 244918. 326648. 277946. 480633. 386554. 434558. 18 525897. 383888. 358892. 338919. 299846. 217165. 264994. 358357. 299499. 427639. 457215. 518925. 11 548674. 395635. 378115. 358534. 224358. 153991. 194697. 267346. 224063. 333118. 471347. 526260. 12 525897. 383886. 358892. 338919. 318629. 226198. 275837. 362216. 318276. 441142. 457215. 518925. 13 493944. 357978. 334046. 315688. 332197. 244239. 295122. 385933. 331829. 468147. 428951. 488375. 14 525097. 383888. 358092. 338919. 353765. 262289. 315287. 409658. 353382. 495153. 457215. 518925. 15 548674. 395635. 378115. 358534. 332197. 244239. 295122. 385933. 331829. 468147. 471347. 526200. 16 548674. 395635. 378115. 358534. 332197. 244239. 295122. 385953. 331829. 468147. 471347. 526288. 17 556258. 488198. 382139. 362149. 278278. 199115. 244918. 326648. 277946. 400633. 485488. 541475. 18 589528. 378525. 346069. 327384. 299846. 217165. 264994. 358357. 299499. 427639. 443883. 495658. 19 462791. 332868. 389999. 292458. 332197. 244239. 295122. 385933. 331829. 468147. 408686. 449825. 26 384988. 270886. 249883. 234381. 278278. 199115. 244918. 326648. 277946. 408633. 330825. 373450. 21 384988. 278886. 249883. 234381. 235142. 163016. 264748. 279285. 234848. 346621. 338825. 373458. 22 431638. 387758. 285953. 269227. 235142. 163816. 204748. 279285. 234848. 346621. 372422. 419275. 23 493944. 357978. 334046. 315688. 235142. 163016. 204748. 279285. 234848. 346621. 428951. 488375. 24 416861. 295195. 273929. 257612. 256718. 181866. 224825. 382922. 256393. 373627. 358289. 464008. | ANNUAL 1E+87 7599452 7667271 6658921 6268884 4435841 5496228 7388736 6261211 9182882 9178382 1E+87 2.75E+09 Heat demand by hour by month (BTU) JAN FEB MAR APR MAY JUN JUL AUG SEP ocr NOV DEC 1 542961. 448153. 439926. 311774. 181404. 49479.2 38799.8 51259.2 159875. 381679. 484958. 552244. 2 523929. 432444. 424585. 300846. 175645. 47744.8 37439.6 49462.4 153499. 2911085. 398763. 532887. 3 505251. 417628. 489372. 298121. 168885. 46042.7 36104.3 47699.1 148827. 280727. 376833. 513889. 4 487276. 462191. 394868. 279799. 162799. 44404.7 34819.8 46882.1 142761. 278739. 363426. 495687. 5 470338. 388211. 381884. 276873. 157148. 42861.1 33609.5 44485.1 137798. 261328. 358793. 478579. 6 454752. 375347. 368456. 261124. 151933. 41448.9 32495.8 42931.7 135232. 252669. 339169. 462528. 7 440818. 3638408. 357168. 253118. 147275. 40176.4 31499.5 41615.5 129148. 244923. 328771. 448347. 8 428771. 353903. 347405. 246205. 143253. 39073.2 38639.2 48478.9 125628. 238233. 319792. 436182. 9 418859. 345721. 339374. 240514. 139941, 3817.8 29930.9 39543.2 122716. 232726. 312399. 426821. 18 411259. 339448. 333216. 236158. 137482. 37477.4 29387.8 38825.6 120498. 228583. 386751. 418291. 11 486112. 335208. 329646. 233194. 135682. 37008.4 29020.8 38339.8 118982. 225644. 362892. 413856. 12 403515. 333056. 326941. 231783. 134815. 36771.6 28834.4 38094.5 118221. 224280. 300954. 410414. 13 403515. 333056. 326941. 231783. 134815. 36771.6 28834.4 3094.5 118221. 224208. 368954. 410414. 14 486112. 335208. 329846. 233194. 135682. 37088.4 29828.8 38339.8 118982. 225644. 362892. 413856. ANIAK WASTE HEAT RECOVERY ESTIMATION 15 411259. 16 418859. 17 428771. 18 440811. 19 454753. 28 470338. 21 487276. 22 505251. 23 523929. 24 542961. 339448. 345721. 353983. 363846. 375347. 388211. 482191. 417828. 432444, 448154, 333216. 339374. 347405. 357168. 368456. 381084. 394888. 409372. 424585. 439926. PAGE 3 236158. 240514. 246205. 253118. 261124. 278873. 279799. 296121. 300846. 311775. 1E+87 9869899 8982599 6389256 Heat delivered by hour by month JAN 1 384908. 2 353755. 3 322662. 4 322662. 5 367625. 6 322662. 7 384968. 8 428771. 9 418859. 16 411259. 11 486112. 12 483515. 13 483515. 14 486112. 15 411259. 16 418859. 17 428771. 18 440811. 19 454753. 28 384968. 21 384988. 22 431638. 23 493944. 24 416061. FUEL OIL CONSUMPTION DISPLACED (GALLONS) JAN 2983 FEB 270086. 244976. 219866. 219866. 267311. 219866. 278086. 328385. 328385. 339448. 335288. 333056. 333056. 335208. 339448. 345721. 353983. 363848. 332868. 276886. 276086. 387758. 357978. 295195. MAR 249883. 225836. 261796. 201798. 189767. 261798. 249883. 297976. 297976. 333216. 329846. 326941. 326941. 329846. 333216. 339374. 347485. 346069. 389999. 249883. 249883. 285953. 334046. 273929. APR 234381. 211151. 187928. 187928. 176365. 187926. 234381. 246285. 240514. 236158. 233194. 231763. 231783. 233194. 236158. 248514. 246285. 253118. 261124. 234381. 234381. 269227. 380846. 257612. FEB =MAR ~—APR 2192 2878 1705 137462. 139941. 143253. 147275. 151933. 157148. 162799. 168885. 175845. 181404. 3671882 (BTU) MAY 181484. 175845. 168885. 162799. 157146. 151933. 147275. 143253. 139941. 137462. 135682. 134815. 134815. 135682. 137482. 139941. 143253. 147275. 151933. 157146. 162799. 168885. 175845. 181404. RAY W17 37477.4 29387.8 38825.7 38178.8 29938.9 39543.2 39873.3 38639.2 40478.9 48176.4 31499.5 41615.5 41448.9 32495.8 42931.7 42861.1 33609.5 44463.1 44404.7 34819.8 46082.1 46842.7 36104.3 47699.1 47744.8 37439.6 49462.4 49479.2 38799.6 51259.2 JUN JUL AUG 49479.2 38799. 51259.2 47744.8 37439.6 49462.4 46042.7 36184.3 47699.1 4444.7 34819.8 46862.1 42861.1 33669.5 44483.1 41448.9 32495.8 42931.7 48176.4 31499.5 41615.5 39873.2 38639.2 46478.9 38178.8 29938.9 39543.2 37477.4 29387.8 38825.6 37668.4 29828. 38339.8 36771.6 28834.4 38694.5 36771.6 28834.4 38094.5 37888.4 29628.6 38339.8 37477.4 29387.8 38825.7 38178. 29938.9 39543.2 39873.3 38639.2 40478.9 40176.4 31499.5 41615.5 41448.9 32495.8 42931.7 42861.1 33609.5 44483.1 44404.7 34819.8 46882.1 46042.7 36104.3 47699.1 47744.8 37439. 49462.4 49479.2 38799.8 51259.2 9542469 7285498 6831651 5606216 3671082 1881289 785159. 1837311 3219152 6098288 7575428 9478867 1.89E+09 120498. 122716. 125628. 129148. 133232. 137798. 142761. 148627. 153499. 159676. 228503. 232726. 238233. 244923. 252669. 261328. 278739. 288727. 291185. 381679. 306731. 312399. 319792. 328771. 339169. 358793. 363426. 376833. 396763. 404958. 1881289 785159. 1837311 3219152 6184965 8194975 SEP OCT NOV 159875. 153499. 148827. 142761. 137798. 133232. 129148. 125628. 122716. 128496. 118982. 118221, 118221. 118982. 128496. 122716. 125628. 129148. 133232. 137798. 142761. 148827. 153499. 159876. 381679. 291185. 279186. 265683. 261328. 252669. 244923. 238233. 232726. 228583. 225644. 224266. 224288. 225644. 228583. 232726. 238233. 244923. 252669. 261328. 276739. 288727. 291185. 381679. 330825. 381766. 275496. 273496. 259364. 273496. 328771. 319792. 312399. 386731. 382892. 388954. 308954. 362892. 386731. 312399. 319792. 328771. 339169. 336625. 338625. 372422. 398763. 358289. wm Tb MSO OS UOT CUM 385 239 316 979 1855 2384 = 2883 418291. 426621. 436162. 448347. 462528. 478379. 495687. 513889. 532887. 552244. ANNUAL TE+87 2. 14E+09 DEC 373450. 342908. 312358. 312358. 297875. 312358. 373456. 434558. 426021. 418291. 413056. 418414, 410414, 413856. 418291. 426821. 436102. 448347. 449825. 373458. 373458. 419275. 488375. 484000. DEC ANNUAL ‘ANNUAL 18,876 ANIAK WASTE HEAT RECOVERY ESTIMATION PAGE 1 CONCEPT 3 WASTE HEAT UTILIZATION SIMULATION WORK SHEET. Location: ANIAK Date:February 9, 1998 Heat rate: 2248 Btu/kwh produced System loss: 241,088 Btu/hour (FOR ALL SYSTEMS CONNECTED) Total Gen.: 1,998,576 kwh/year Assumed diurnal heat Power plant monthly generation: demand variation: Monthly JAN FEB MAR APR MAY JUN JUL AUG SEP ocT NOV DEC CHECKSUM Fraction:6.19584 8.88531 8.88169 6.87892 6.87327 6.66132 8.86823 6.68857 6.87322 6.69175 6.89682 6.10379 1 Winte Summer Hour Kvh: 211,535 178,588 163,286 157,748 146,458 122,568 136,388 161,845 146,358 183,375 191,921 267,448 1,998,576 Diurnal 6.0494 6.0494 1 variation 6.038 6.638 6.038 6.038 6.045 6.045 6.045 6.045 8.045 6.045 6.838 6.038 6.0477 6.0477 2 6.036 6.036 6.056 6.036 6.040 6.048 6.048 6.048 6.040 6.048 6.036 8.036 6.0468 6.8468 3 6.034 6.034 6.034 6.034 6.036 6.036 6.056 6.036 6.036 6.036 6.034 6.034 6.0443 6.0443 4 6.034 6.034 6.034 6.034 6.035 6.035 6.035 8.035 6.035 6.835 6.034 6.634 6.0428 6.0428 5 6.053 6.853 6.033 6.033 6.035 6.835 8.035 6.035 6.035 6.835 6.053 8.633 6.0414 6.0414 6 6.034 6.034 6.034 6.034 6.038 6.6538 6.038 6.838 6.638 6.838 6.034 6.834 6.0401 6.0481 7 6.038 6.038 6.038 6.038 6.038 8.838 6.038 6.038 6.038 6.838 6.638 6.638 6.0398 8.8398 8 8.042 6.042 6.042 6.842 6.048 6.040 6.040 6.048 6.048 8.040 6.042 6.842 6.0381 6.0381 9 6.042 6.042 6.042 6.042 6.045 6.045 6.045 6.045 6.045 8.045 6.842 8.042 6.0374 8.0374 16 6.047 6.047 6.047 6.047 6.047 6.047 6.847 6.047 6.647 6.047 6.047 6.847 6.0376 6.0376 " 6.048 6.048 6.048 6.048 6.040 6.040 6.048 6.040 6.040 6.040 6.848 6.648 6.0367 6.0367 12 6.047 6.047 6.047 6.047 6.048 8.048 6.048 6.048 8.048 6.848 6.047 6.047 6.0367 6.0367 3 6.045 6.045 6.645 6.045 6.058 6.058 6.058 6.058 6.058 6.058 6.845 6.045 6.0378 6.0378 4 6.047 6.047 6.647 6.847 6.052 6.8652 6.052 6.052 6.052 6.052 6.047 6.647 6.0374 8.8374 15 6.048 6.048 6.048 6.048 6.058 8.058 6.050 6.058 6.058 8.858 6.648 6.048 6.0381 6.0381 16 8.048 6.048 8.048 6.048 8.858 6.058 8.058 8.050 6.050 0.050 6.048 6.048 6.0398 6.8398 17 6.049 6.049 6.049 8.049 6.045 6.045 6.045 6.045 6.045 6.045 6.849 6.049 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 8.846 6.846 6.0414 6.0414 19 6.043 6.043 6.043 6.043 6.058 6.056 6.050 6.058 6.058 6.058 6.043 8.043 6.0428 6.8428 28 6.038 6.038 6.038 6.038 6.045 6.045 6.045 6.045 6.045 6.045 6.838 6.838 6.0443 6.0443 21 6.038 6.038 6.038 8.038 6.041 6.041 6.041 6.041 6.041 6.041 6.038 6.038 6.0468 6.0468 22 6.041 6.041 6.041 6.041 6.041 6.041 6.041 6.041 6.041 6.041 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 8.045 8.0494 8.0494 24 6.040 6.048 6.040 6.040 6.043 6.043 8.043 6.043 8.043 6.043 6.040 6.048 Building use per month, gallons of fuel oil KUSPUK SCH. DIST. BLDG. 6 6 8 6 6 6 6 6 6 6 6 8 6 APT. COMPLEX 14290«1181=«« 1168 825 BH 25ZQsi97— 261 425 798 18681453 9,533 OFFICE BLDG. 306248243173 53 4" 55 89 = 167, 22h 385 2, BBB ELEM. SCH. GYM 1312 1884 1865757444 6 6 6 398 735 981 1334 8,108 ELEM. CLASSROOM 1458 «1205-1183 B41 49 6 6 6 434 814 1698 1482 9, 688 SPECIAL ED. BLDG. 302.0246 165 87 6 6 6 Mm 159 228 387 = 1, 888 ANIAK WASTE HEAT RECOVERY ESTIMATION PRESCHOOL BLDG. BUILDING 8 BUILDING 9 324 aane 5124.84 4231.37 4153.91 2947.29 1719.78 384.592 238.845 315.558 JAN 1 350988. 2 319755. 3 288602. 4 288682. 5 273625. 6 288682. 7 350988. 8 413214. 9 413214. 18 491697. 11 566674. 12 491697. 13 459944. 14 491897. 15 586674. 16 586674. 17 522256. 18 475528. 19 428791. 28 356988. 21 358988. 22 397638. 23 459944. 24 382061. 268 FEB 236086. 218976. 185866. 185866. 173311. 185866. 236086. 286385. 286385. 349686. 361635. 349088. 323976. 349882. 361635. 361635. 374198. 336525. 298868. 236086. 236086. 273758. 323978. 261195. 263 MAR 215883. 191836. 167798. 167798. 155767. 167796. 215883. 263976. 263976. 324092. 336115. 324092. 300046. 324892. 336115. 336115. 348139. 312869. 275999. 215883. 215883. 251953. 300046. 239929. 9888118 6783452 6251271 PAGE 2 187 116 8 6 8 6 6 6 APR 208381. 17151. 153928. 153928. 142385. 153928. 200381. 246842. 246842. 384919. 316534. 384919. 281688. 304919. 316534. 316534. 328149. 293304. 258458. 200381. 200381. 235227. 281688. 223612. 5842921 MAY 244278. 198358. 147222. 136438. 136438. 1687968. 168796. 198358. 244278. 265846. 198358. 276629. 298197. 319765. 298197. 298197. 244278. 265846. 298197. 244278. 201142. 281142. 281142. 222718. 5452884 Heat demand by hour by month (BTU) JAN 1 832376. 2 803193. 3 774568. 4 747003. 5 721837. 6 697145. 7 675771. 8 657315. 9 642128. 18 638469. 11 622578. 12 618596. 13 618596. 14 622578. FEB 687362. 663268. 639623. 616867. 595424, 575694. 558044. 542883. 538255. 528634. 514118. 510838. 516838. 514118, MAR 674778. 651125. 627913. 605573. 584523. 565155. 547828. 532866. 520547. 511182. 504766. 501478. 501478. 584766. APR 478771. 461988. 445519. 429668. 414733. 400990. 388696. 378881. 369348. 362639. 358168. 355818. 3558168. 3581088. MAY 279369. 269576. 259966. 256717. 242082. 233983. 226889. 228615. 215515. 211684. 268956. 287628. 287628. 208956. ee oe aeons eaaas aaa & 181 242 JUN JUL AUG SEP ocr NOV 165115. 218918. 292648. 243946. 119991. 168697. 233346. 190663. 83892.7 128528. 185912. 146957 74867.9 116485. 174853. 136186. 74867.9 118485. 174853. 136186. 161942. 148612. 289629. 168518. 181942. 148612. 289629. 168518. 119991. 168697. 233346. 196863. 165115. 218918. 292648. 243946. 183165. 236994. 316357. 265499. 119991. 168697. 233346. 198863. 192198. 241837. 328216. 276276. 218239. 261122. 351933. 297829. 228289. 281287. 375658. 319382. 216239. 261122. 351933. 297829. 216239. 261122. 351933. 297829. 165115. 218918. 292648. 243946. 183165. 238994. 316357. 265499. 218239. 261122. 351933. 297829. 165115. 218918. 292648. 243946. 129816. 178748. 245285. 268848 129816. 176748. 245285. 206848 129816. 176748. 245285. 266848. 147666. 198825. 268922. 222393. 3619841 4688228 6572736 5445211 JUN JUL AUG SEP 49479.2 38799.6 51259.2 245218. 47744.8 37439.8 49462.4 236622. 46042.7 36184.3 47699.1 228187. 44404.7 34819.8 46002.1 220068. 42861.1 33609.5 44403.1 212419. 41448.9 32495.8 42931.7 205388. 48176.4 31499.5 41615.5 199883. 39873.2 38639.2 40478.9 193646. 38176.6 29938.9 39543.2 189169. 37477.4 29387.8 38825.6 185737. 37088.4 29626.6 38539.8 183412. 36771.6 28834.4 38094.5 182239. 36771.6 28834.4 38894.5 182239. 37808.4 29028.8 38339.8 183412. 366633. 299118. + 245106. 231683. 231683. 272112. 272112. 299118. 366633. 393639. 299118. 487142. 434147, 461153. 434147. 434147. 366633. 393639. 434147. 366633. + 312621. + 312621. 312621. 339627. 8286082 ocT 463338. 447089. 431151. 415811. 401358. 388258. 376161. 365887. 357429. 350944. 346552. 344335. 344335. 346552. 296825. 267768. 239496. 239496. 225364. 239496. 296625. 352554. 352554. 423215. 437347. 423215. 394951. 423215. 437347. 437347, 451486. 409683. 366686. 296625. 296825. 338422. 394951. 324289. 8362382 621295. 599517. 578144. 557576. 538194, 520366. 564487. 498651. 479289. 478592. 464783. 461738. 461738. 464783. CONCEPT 3 329 2,008 6 6 6 6 6 6 1589.55 2852.24 3824.67 5211.45 32,433 DEC 339458. 308908. 278358. 278358. 263875. 278358. 339458. 400550. 4005508. 476925. 492206. 476925. 446375. 476925. 492286. 492288. 587475. 461650. 415825. 339458. 339458. 385275. 446375. 376008. ANNUAL 9586278 2.45E+09 DEC 846569. 816894. 787772. 759746. 733337. 789837. 687299. 668528. 653873. 641223. 633198. 629148. 629148. 633198. ANIAK WASTE HEAT RECOVERY ESTIMATION 15 638469. 16 642126. 17 657315. 18 675771. 19 697145. 26 721837. 21 747883. 22 774568. 23 883193. 24 832378. 2E+87 528634. 538255. 542804. 558044. 575694. 595424. 616867. 639623. 663268. 687362. 1E+87 511182. 528548. 532866. 547828. 565155. 584523. 605574. 627913. 651125. 674778. PAGE 3 362639. 369346. 378881. 388697. 400998. 414733. 429668. 445519. 461988. 478771. 211684. 215515. 228615. 226889. 233983. 242082. 258717. 259966. 269576. 279369. 1E+87 9688683 5653475 Heat delivered by hour by month (BTU) JAN 1 358988. 2 319755. 3 288682. 4 288682. 5 273625. 6 288662. 7 358988. 8 413214. 9 413214. 16 491897. 11 586674. 12 491897. 13 459944. 14 491897. 15 566674. 16 586674. 17 522256. 18 475526. 19 428791. 26 358988. 21 350988. 22 397638. 23 459944. 24 382061. FEB MAR SsOAPR 236886. 218976. 185866. 185866. 173311. 185866. 236886. 286365. 286365. 349888. 361635. 349888. 3235976. 349686. 361635. 361635. 374196. 336525. 298868. 236886. 236886. 273756. 323976. 261195. 215883. 191836. 167798. 167796. 155767. 167796. 215883. 263976. 263976. 324892. 336115. 324892. 300046. 324892. 336115. 336115. 348139. 312669. 275999. 215883. 215883. 251953. 300046. 239929. 9888118 6783452 6251271 288381. 177151. 153928. 153928. 142385. 153928. 200381. 246842. 246842. 384919. 316534. 384919. 281688. 384919. 316534. 316534. 328149. 293384. 258458. 200381. 208381. 235227. 281688. 223612. 5842921 MAY 244278. 198358. 147222. 136438. 136438. 168796. 168796. 196358. 215515. 211684. 198358. 267628. 287628. 268956. 211684. 215515. 228615. 226889. 233983. 242882. 281142. 281142. 281142. 222718. 3747.4 29387.8 38825.7 185737. 38178.8 29938.9 39543.2 189169. 39873.3 38639.2 48478.9 193646. 48178.4 31499.5 41615.5 199883. 41448.9 32495.8 42931.7 265388. 42861.1 33689.5 44483.1 212419. 44404.7 34819.8 46082.1 228068. 46042.7 36184.3 47699.1 228187. 47744.8 37439.6 49462.4 236622. 49479.2 38799.8 51259.2 245218. 1881289 785159. 1837311 4962371 JUN JUL AUG SEP 49479.2 38799.8 51259.2 243946. 4744.8 37439.8 49462.4 198863. 46842.7 36184.3 47699.1 146957. 44484.7 34819.8 46882.1 136188. 42861.1 33689.5 44483.1 136188. 41448.9 32495.8 42931.7 168516. 48176.4 31499.5 41615.5 168518. 39873.2 36639.2 46478.9 196863. 38176.8 29938.9 39543.2 189169. 37477.4 29387.8 38825.6 185737. 37888.4 29828.6 38339.8 183412. 36771.6 28834.4 38094.5 182239. 36771.6 28834.4 38894.5 182239. 37688.4 29828.8 38339.8 183412. 3747.4 29387.8 38825.7 185737. 38178.8 29938.9 39543.2 189169. 39873.3 38639.2 48478.9 193646. 48176.4 31499.5 41615.5 199883. 41446.9 32495.8 42931.7 205388. 42861.1 33689.5 44483.1 212419. 44484 .7 34819.8 46882.1 266846. 46042.7 36184.3 47699.1 268848. 47744.8 37439.8 49462.4 288848. 49479.2 38799.6 51259.2 222393. 358944. 357429. 365887. 376161. 388058. 481358. 415812. 431151. 447089. 463336. . 9376228 = 1E+87 ocT 366633. 299118. 245186. 231683. 231683. 272112. 272112. 299118. 357429. 358944. 299118. 344335. 344335. 346552. 358944. 357429. 365887. 376161. 388858. 366633. 312621. 312621. 312621. 339627. 478592. 479289. 496631. 584487. 520366. 538194. 557576. 578144. 599517. 621295 Nov 296825. 267768. 239496. 239496. 225364. 239496. 296625. 352554. 352554. 423215. 437347. 423215. 394951. 423215. 437347. 437347. 451488. 469883. 366686. 296625. 296825. 338422. 394951. 324289. 641223. 653673. 668528. 687299. 769837. 733337. 759746. 787773. 816894. 846569. ANNUAL 2E+87 3.24E+09 DEC 339458. 308986. 278358. 278356. 263875. 278356. 339456. 408558. 400556. 476925. 492266. 476925. 446375. 476925. 492286. 492266. 567475. 461658. 415825. 339458. 339456. 385275. 446375. 370086. ANNUAL 4881818 1881289 785159. 1857311 4496978 7742729 8362382 9586278 2.82E+B9 FUEL OIL CONSUMPTION DISPLACED (GALLONS) JAN 2984 FEB 2064 MAR 1962 APR 177 MAY 1468 JN 6S OG OSEP OCT NW 305 239 316 = 1368 = 2355 2544 = 2892 DEC ANNUAL 26,285 ANIAK WASTE HEAT RECOVERY ESTIMATION PAGE 1 CONCEPT « WASTE HEAT UTILIZATION SIMULATION WORK SHEET. Location: ANIAK Date:February 9, 1998 Heat rate: 2248 Btu/kwh produced System loss: 289,008 Btu/hour (FOR ALL SYSTEMS CONNECTED) Total Gen.: 1,998,576 kwh/year Assumed diurnal heat Power plant monthly generation: demand variation: Monthly JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC CHECKSUM Fraction:8.18584 8.68531 6.88169 6.67892 8.87327 6.86132 6.66823 6.88057 6.87322 8.09175 6.69602 6.18379 1 Winte Summer Hour Kvh: 211,535 178,588 163,286 157,748 146,458 122,566 136,380 161,045 146,358 183,375 191,921 287,448 1,998,576 Diurnal 6.0494 6.6494 1 variation 6.038 6.058 6.038 6.038 6.645 6.045 6.045 6.045 6.845 6.845 6.038 6.038 6.6477 6.6477 2 6.036 6.036 6.056 6.036 6.046 6.040 6.646 6.048 6.048 6.048 6.036 6.036 6.0468 6.6468 3 6.034 6.034 6.034 6.634 6.036 6.836 6.036 6.036 6.836 8.036 6.034 6.034 6.8443 6.0443 4 6.034 6.034 68.034 6.034 6.835 6.035 6.035 6.035 6.635 6.835 6.034 6.034 6.6428 6.8428 5 6.633 6.033 6.033 6.033 6.035 6.035 6.835 6.035 6.635 6.035 6.033 6.833 6.0414 6.6414 6 6.034 6.034 6.034 6.034 6.038 6.838 6.838 6.038 6.638 8.038 6.034 6.934 6.0461 6.6481 a 6.038 6.058 6.038 6.638 6.038 6.838 6.838 6.038 6.638 6.838 6.038 6.036 6.6398 6.8398 8 6.642 6.042 6.042 6.042 6.048 8.048 8.048 6.040 6.948 6.048 6.042 9.042 6.0381 6.0381 9 6.042 68.042 6.042 6.042 6.045 6.045 6.045 6.045 6.845 8.045 6.042 6.042 8.0374 6.8374 16 6.047 6.647 6.847 6.047 6.047 6.647 6.047 6.047 6.847 6.847 6.047 6.847 6.8376 6.0376 of] 6.048 6.048 6.048 8.048 6.040 8.048 6.046 6.040 6.0480 6.048 6.848 6.048 8.0367 6.8367 12 8.047 6.047 6.047 6.047 6.048 6.848 6.048 6.048 6.848 6.048 6.047 6.047 6.8367 6.0367 13 6.045 6.045 6.045 6.045 6.058 6.055 6.050 6.058 6.058 6.058 6.845 6.645 8.0376 6.0378 4 6.047 6.047 6.047 6.047 6.852 6.852 6.052 6.052 6.052 6.852 6.047 6.047 6.0374 6.8374 15 6.048 6.048 6.048 6.048 6.058 6.658 6.056 6.058 6.058 6.058 6.848 6.948 6.0381 6.8381 16 6.048 6.048 6.848 8.848 6.056 6.056 6.058 6.050 6.050 6.058 8.048 6.048 6.0396 6.6398 7 6.049 6.049 6.049 6.649 6.045 6.845 6.645 6.045 6.045 6.045 6.649 6.849 6.0481 6.8461 18 8.046 6.046 6.046 6.046 .-6.647 6.847 6.847 6.047 6.847 6.047 6.046 6.846 6.8414 6.0414 19 6.043 6.043 6.043 6.043 6.058 6.058 6.050 6.058 6.658 6.0580 6.043 6.843 6.0428 6.6428 28 6.058 6.058 6.038 6.038 6.045 6.645 6.045 6.045 6.045 6.045 6.038 6.038 6.0443 6.0443 2 6.038 6.058 6.038 6.038 6.041 6.041 6.041 6.041 6.041 8.041 6.838 6.038 6.0468 6.0466 22 6.041 6.041 6.041 6.041 6.041 6.041 6.041 6.041 6.041 6.641 6.041 6.041 6.0477 6.0477 23 8.045 6.045 68.045 6.045 6.041 6.041 68.041 6.041 6.041 6.041 6.045 8.045 8.8494 6.0494 24 6.045 6.040 6.040 6.040 6.043 6.043 6.043 6.043 6.043 6.043 6.048 6.048 Building use per month, gallons of fuel oil KUSPUK SCH. DIST. BLDG. 899 743 3B 519 384 158 124 164 268 562 672 915 6,006 APT. COMPLEX 1429 1181 1168 825 484 252 197 261 425 798 1668 1453 9,533 OFFICE BLDG. 366 248 243 173 161 53 41 55 89 167 224 365 2,008 ELEM. SCH. GYM 1312 1684 1865 757 444 6 6 6 396 TS 981 1334 8,108 ELEM. CLASSROOM 1458 1205 1183 841 493 6 6 6 434 814 18968 1482 9,008 SPECIAL ED. BLDG. 302 246 241 165 87 6 6 6 14 159 226 367 1,806 ANIAK WASTE HEAT RECOVERY ESTIMATION PRESCHOOL BLDG. 324 BUILDING 8 6 BUILDING 9 6 268 263 PAGE 2 187 118 saas saos aaae aaa & 181 ‘TOTAL 6823.44 4974.77 4883.76 3466.27 2024.25 463.058 363.186 479.709 1777.25 3354.61 JAN 1 382908. 2 271755. 3 248682. 4 246682. 5 225625. 6 248682. 7 362988. 8 365214. 9 365214. 18 443697. 11 458674. 12 443697. 13 411944. 14 443897. 15 458674. 16 458674. 17 474256. 18 427526. 19 386791. 26 362988. 21 382988. 22 349638. 23 411944. 24 334861. FEB 188086. 162976. 137866. 137866. 125311. 137866. 188886. 238305. 238385. 361888. 313635. 361688. 275978. 361688. 313635. 313635. 326198. 288525. 258866. 188886. 188886. 225758. 275976. 213195. MAR 167883. 143836. 119798. 119798. 167767. 119798. 167883. 215976. 215976. 276892. 288115. 276892. 252846. 276892. 288115. 288115. 366139. 264669. 227999. 167883. 167883. 283953. 252846. 191929. 8656118 5631452 5699271 APR 152381. 129151. 185928. 185928. 94385 .6 185928. 152381. 198842. 198842. 256919. 268534. 256919. 233688. 256919. 268534. 268534. 286149. 245384. 218458. 152381. 152381. 187227. 233688. 175612. 4690921 MAY 196278. 142358. 99222.4 88438.5 88438.5 126796. 126796. 142358. 196278. 217846. 142358. 228629. 256197. 271765. 258197. 256197. 196278. 217846. 258197. 196278. 153142. 153142. 153142. 174716. 4300884 Heat demand by hour by month (BTU) JAN 1 978473. 2 944174. 3 910515. 4 878122. 5 847598. 6 819512. 7 794387. 8 772691. 9 754828. 1B 741132. 11731857. 12 727176. 13 727176. 14 731857. FEB 888122. 779795. 751996. 725242. 706032. 676836. 656885. 638166. 623414. 612182. 604441. 600575. 680575. 604441. MAR 793338. 765529. 738239. 711974. 687226. 664454. 644683. 626492. 612009. 600904. 593384. 589588. 589589. 593384. APR 563875. 543338. 523968. 505327. 487761. 471599. 457146. 444655. 434376. 426494. 421157. 418463. 418463. 421157. MAY 328824. 317298. 305987. 295181. 284843. 275484. 266961. 259678. 253667. 249664. 245947. 244374, 244374, 245947. JUN JUL AUG SEP 117115. 162918. 244648. 195946. 71991.9 112697. 185346. 142663. 35892.7 72528.6 137912. 98957.3 26867.9 62485.6 126853. 88188.8 26867.9 62485.6 126853. 88186.8 53942.3 92612.9 161629. 128518. 53942.3 92612.9 161629. 120516. 71991.9 112697. 185346. 142063. 117115. 162918. 244648. 195946. 135165. 182994. 268357. 217499. 71991.9 112697. 185346. 142863. 144196. 193837. 288216. 228276. 162239. 213122. 383933. 249829. 188289. 233287. 327658. 271382. 162239. 213122. 383933. 249829. 162239. 213122. 383933. 249829. 117115. 162916. 244648. 195946. 135165. 182994. 268357. 217499. 162239. 213122. 365933. 249829. 117115. 162918. 244648. 195946. 81816.7 122746. 197285. 152848. 81816.7 122746. 197205. 152846. 81816.7 122748. 197285. 152848. 99866.3 142825. 228922. 174393. 2467841 3528228 5428736 4293211 JUN JUL AUG SEP 75219.8 58983.5 77925.9 288785. 72583.2 56916.8 75194.4 278585. 69995.6 54886.9 72513.7 268653. 67585.4 52934.2 69933.9 259895. 65158.8 51894.2 67582.9 250689. 62999.7 49481.1 65266.2 241882. 61868.3 47886.6 63265.2 234385. 59408.4 46578.7 61537.3 227987. 58027.2 45561.9 68114.8 222717. 56974.3 44676.3 59024.6 218676. 56261.3 44117.2 58285.3 215939. 55981.4 43835.6 57912.5 214558. 55981.4 43835.6 57912.5 214558. 56261.3 44117.2 58285.3 215939. ocT 318633. 251118. 197186. 183683. 183683. 224112. 224112. 251118. 319633. 345639. 251118. 359142. 386147. 413153. 386147. 386147. 318633. 345639. 386147. 318633. 264621. 264621. 264621. 291627. 7134882 544936. 525835. 567889. 489848. 472849. 456487. 442414. 430331. 428383. 412755. 487596. 484982. 464982. 487598. 242 4496.98 NOV 248825. 219768. 191496. 191496. 177364. 191496. 248825. 304554. 384554. 375215. 389347. 375215. 346951. 375215. 389347. 389347. 483488. 361683. 318686. 248625. 242925. 298422. 346951. 276289. 329 6126.12 DEC 291458. 260908. 230358. 238358. 215875. 238358. 291458. 352558. 352558. 428925. 444200. 428925. 398375. 428925. 444200. 444208. 459475. 413658. 367825. 291458. 291456. 337275. 398375. 322008. 38,433 ANNUAL 7218382 8354278 2.B3E+89 730568. 784962. 679772. 655588. 632868. 611831. 593873. 576876. 563540. 553314. 546396. 542895. 542895. 546396. DEC 995153. 966278. 926837. 895891. 862847. 833482. 887929. 785863. 767696. 744333. 739572. 744333. ANIAK WASTE HEAT RECOVERY ESTIMATION 15 741132. 16 754828. 17 772691. 18 794387. 19 819512. 26 847598. 21 878122. 22 918515. 23 944175. 24 978473. 2E+87 612182. 623414. 638166. 656085. 676836. 76832. 725242. 751996. 779795. 888122. 2E+87 «= 2E+87 600984. 612889. 626492. 644083. 664454. 687226. 711974. 738239. 765538. 793338. PAGE 3 426494. 434376. 444655. 457148. 471599. 487761. 585327. 523968. 543338. 563875. 1E+87 Heat delivered by hour by month JAN 1 382988. 2 271755. 3 246662. 4 248682. 5 225625. 6 246682. 7 382988. 8 365214. 9 365214. 16 443897. 11 458674. 12 443697. 13 411944. 14 443697. 15 458674. 16 458674. 17 474256. 18 427526. 19 388791. 26 362988. 21 362988. 22 349638. 23 411944, 24 334061. FEB «OMAR OAR 188886. 162976. 137866. 137866. 125311. 137866. 188886. 238385. 238385. 361688. 313635. 361888. 275976. 361686. 313635. 313635. 326196. 288525. 258868. 188886. 188886. 225758. 275976. 213195. 167883. 143836. 119798. 119796. 187767. 119796. 167883. 215976. 215976. 276892. 288115. 276692. 252846. 276892. 288115. 288115. 388139. 264669. 227999. 167883. 167883. 283953. 252046. 191929. 8656118 5631452 5899271 152381. 129151. 185928. 185928. 94385.6 185926. 152381. 198842. 198842. 256919. 268534. 256919. 233688. 256919. 268534. 268534. 286149. 245384. 218458. 152381. 152381. 187227. 233688. 175612. 4698921 249864 253667 259678 266961 275484 284843 295181 385987 317298 328824 - 56974.3 44676.3 59624.8 218676. - 58827.2 45581.9 68114.8 222717. + 59488.4 46578.7 61537.3 227987. - 61868.3 47886.6 63265.2 234389. - 62999.7 49481.1 65266.2 241882. - 65158.8 51894.2 67503.6 258889. - 67585.4 52934.2 69933.9 259895. - 69995.6 54886.9 72513.7 268653. + 72583.2 56916. 75194.4 278585. + 75219.8 58983.5 7925.9 288785. 6654287 1522192 1193624 1576953 5842481 (BTU) MAY 196278 142358 99222. JUN JUL AUG SEP + 75219.8 58983.5 77925.9 195946. + 71991.9 56916.8 75194.4 142863. 4 35892.7 54886.9 72513.7 98957.3 88438.5 26867.9 52934.2 69933.9 88188.8 88438. 126796. 126796. 5 26867.9 51694.2 67562.9 88186.8 53942.3 49481.1 65266.2 128516. 53942.3 47886.6 63265.2 128516. 142358. 59466.4 46578.7 61537.3 142863. 196278. 217846. 142358. 228629. 244374. 58827.2 45581.9 66114.8 195946. 56974.3 44676.3 59624.6 217499. 56261.3 44117.2 58285.3 142863. 55981.4 43835.6 57912.5 214558. 55981.4 43835.B 57912.5 214558. 245947. 56261.3 44117.2 58285.3 215939. 249864. 56974.3 44676.3 59624.6 218676. 258197. 58827.2 45581.9 68114.8 222717. 196278. 217846. 258197. 196278. 153142. 153142. 59408.4 46578.7 61537.3 195946. 61668.3 47886.6 63265.2 217499. 62999.7 49481.1 65266.2 241882. 65158.8 51894.2 67583.6 195946. 67585.4 52934.2 69933.9 152848. 69995.6 54886.9 72513.7 152848. 153142. 72583.2 56916.6 75194.4 152846. 174718. 4268188 75219.8 58983.5 7925.9 174393. FUEL OIL CONSUMPTION DISPLACED (GALLONS) JAN 2633 FEB «MAR OAPR 1713 1551 1427 MAY 129 412755. 420383. 438331. 442414. 456487. 472649. 489648. 567689. 525835. 544936. 1E+87 ocT 318633. 251118. 197186. 183683. 183663. 224112. 224112. 251118. 318633. 345639. 251118. 359142. 386147. 487596. 386147, 386147. 318633. 345639. 386147. 318633. 264621. 264621. 264621. 291627. 553314. 563546. 576876. 593873. 611831. 632866. 655588. 679773. 764962. 730588 248825. 219768. 191496. 191496. 177364. 191496. 248825. 384554. 384554. 375215. 389347. 375215. 346951. 375215. 389347. 389347. 403486. 361683. 318686. 248825. 248825. 298422. 346951. 276289 753766. 767696. 785863. 887929. 833482. 862847. 893091. 926837. 966276. 995153. DEC 291458. 266968. 238358. 238358. 215675. 238358. 291458. 352558. 352558. 428925. 444208. 428925. 398375. 428925. 444266. 444208. 459475. 413658. 367825. 291458. 291456. 337275. 398375. 322006. ANNUAL 1E+87 «= 2E+87 3. 84E+09 ANNUAL 1392386 1193624 1576953 4122485 7128519 7218382 8354278 1.8BE+89 JUN JUL AUG SEP 6OCT) = =6NOV) DEC =— ANNUAL 8 424 363 4860 (1254 2168 2195 2541 18,647 yooANIAk WhTe WEAT Recovery FPE _ consuttinc ENGINEERS 560 E. 34th Avenue, Suite 300 SHEET NO* toe Anon 07) 561-1666 CALCULATED BY. Tes DATE 2/15/46 FAX (907) 561-7028 CHECKED BY DATE SCALE op ONERRERD BEAT. LOSSES WN Berrnniny 2 pipro . leans Ne _ergne, there vill be a dink less pchoces.....duailableercenyotheew ise, avail De fe pmce cece Ete —uabsay.. Thre heat loss. IS rredeled as A tonstant hss Phooyh i a there. will (be seme warrction wilh plstde. bemperadores ior ober Packers. tn this. Gre, the. losses fall inte 2 entegorres + iL atest powerplant — heat exchanges piping , valves, efc.. 2, Distnbshon . system = arche piping. 3. Power. plank ae 3 ; EE aL ek PART. \- . INSIDE POWERPLANT Assume Neat \o55 \s ‘equiva lan’ to Wo’ of vnivsulabed , 4 Pipiny and joo. of — unimselakd 2" Pipin with a fluid Lemperabure of (40°F, Oe ie HAL. oF 80° &. Assume also 20 MBN ea. br 4 redintors Clos Pose Ua Le to presen Yrural shack), From ASHENE funlamunkals (14164) 2” stee\ > 151.3 BNIES = |e MBs fululors 2» 320 mBH 2 ©° Mey} 4° steel @ Z3y Gh] f. 3 ire | = 42-meH PART 2 = OISTeIBUTION SYSTEM, _Aesine heal loos = 30 Bh) Ft of foal length 1 Pawer pin ts e005 Rasmee 95 Sule? — pee foe piping, my Me) PRoQUCT 2061 (WETS) ec. Grton, Mass. 01471, ANIAK WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 11, 1990 Contact Names The following people were contacted in the field: Bob McHenry, Superintendent Kuspuk School District (675-4250) Steve Hill, Facilities Manager Kuspuk School District (675-4250) Arte Bemandel, Owner of Aniak Light and Power (675-4334) Carl Morgan, Manager for Aniak Properties (675-4413) Aniak Properties (in Anchorage, 276-2101) Terry Hoefferle, Aniak City Manager (675-448 1) ANIAK WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 11, 1990 Cost Estimates SIMPLE ECONOMIC SUMMARY COST SUMMARY $81,626 CONCEPT 2 $119,858] $519,384 CONCEPT 3 $162,.634| $704,748 CONCEPT 4 $207,141| $897,612 FUEL OIL SAVINGS SUMMARY CONC 000 CONCEPT 1 $12,917 “CONCEPT 2 $21,112 CONCEPT 3 $22,595 CONCEPT 4 $20,187 SIMPLE PAYBACK SUMMARY CONCEPT CO AVIN AVINGS _| PAYBACK CONCEPT 1 $353,711 $12,917 27.4 CONCEPT 2 $519,384 $21,112 24.6 CONCEPT 3 $704,748 $22,595 31.2 CONCEPT 4 $897,612 $20,187 44.5 HMS 9053 CONSTRUCTION COST STUDY WASTE HEAT RECOVERY SYSTEM ANIAK, 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 May 16, 1990 (907) 562-0420 FAX WASTE HEAT RECOVERY SYSTEM PAGE 1 ANIAK, ALASKA CONSTRUCTION COST STUDY MAY 16, 1990 NOTES REGARDING THE PREPARATION OF THIS COST ESTIMATE This study has been prepared from twenty (20) 8 1/2"x11" sketches and narratives connecting eight (8) buildings. There are four (4) concepts 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. 1. A/E fees 2. Administrative costs 3. Cost for any other remodel work 4. Cost of asbestos abatement, if found in existing pipes/equipment WASTE HEAT RECOVERY SYSTEM PAGE 2 ANIAK, ALASKA ; CONSTRUCTION COST STUDY MAY 16, 1990 GENERAL COST SUMMARY CONCEPTS #1 or #2 or #3 or #4 BLDG ITEM (Bldg 1-2) (Bldg 1-4) (Bldg 1-6) (Bldg 1-8) Arctic Pipes and Loops 124,614 173,924 268,010 358,576 1. Power Plant Modifications 55,950 59,700 62,700 66,900 2. Modifications to Apartment Complex 5,560 5,560 5,560 5,560 3. Modifications to Gym/Classroom 0 18,550 18,550 18,550 4. Modifications to Pre-School 0 0 2,625 2,625 5. Modifications to Main Classroom 0 12,515 12,515 12,515 6. Modifications to Special Ed. Classroom 0 4,995 4,995 4,995 7. Modifications to Office Building 4,145 4,145 4,145 4,145 8. Modifications to Administration Bldg. 0 0 0 8,980 SUBTOTAL 190,269 279 ,389 379,100 482,846 9. General Conditions, Overhead and Profit (25%) 47,567 69,847 94,775 120,712 10. Contingencies (103%) 23,784 34,924 47,388 60,356 11. Escalation to April 1991 Bid Date ( 4%) 10,465 15 ,366 20,851 26 ,557 ANTICIPATED CONSTRUCTION COST: 272,085 399 ,526 542,114 690,471 WASTE HEAT RECOVERY SYSTEM ANIAK, ALASKA CONSTRUCTION COST STUDY SUPPLY AND RETURN ARCTIC PIPES AND EXPANSION LOOPS QUANTITY UNIT UNIT RATE PAGE 3 MAY 16, 1990 ESTIMATED COST CONCEPT NO. 1 (BUILDING 1 - 2) NOTE: For Building numbers, refer to General Summary. Supply and return arctic pipe and expansion loops comprising: 2 1/2" SCP, 2" insulation and 6 1/2" pvc JP (2) 2,288 1 1/2" SCP, 2" ditto and 5 1/2" PVC JP (2) 160 6 1/2" arctic pipe bend/tee for 2 1/2" pipe and loop 40 Connect arctic pipes to buildings 4 Excavate, backfill and dispose for arctic pipe trench (1) 1,120 LF LF EA EA 38.50 22.00 225.00 165.00 88 ,088 3,520 9,000 660 TOTAL ESTIMATED COST: Continued BSS SSS SSS SSS SS SS SSS SSSSSSSSSSS SS SSS SASS SSH SH SSSSSSSSS SSS SSSVVSSSSSsSSssessssessSsesSS2232 WASTE HEAT RECOVERY SYSTEM PAGE 4 ANIAK, ALASKA CONSTRUCTION COST STUDY MAY 16, 1990 SUPPLY AND RETURN ARCTIC PIPES AND EXPANSION LOOPS QUANTITY UNIT UNIT RATE ESTIMATED COST CONCEPT NO. 1 (BUILDING 1 —- 2) Excavate, backfill and dispose for expansion Loop 300'0" o/c (8) 104 LF 15.25 1,586 24" diameter half CMP steel culvert for 7" and 5 1/2" arctic pipe mounted on steel pipe frame at loops (8) 208 LF 22.50 4,680 WASTE HEAT RECOVERY SYSTEM ANIAK, ALASKA CONSTRUCTION COST STUDY SUPPLY AND RETURN ARCTIC PIPES AND EXPANSION LOOPS QUANTITY UNIT UNIT RATE PAGE 5 MAY 16, 1990 ESTIMATED COST CONCEPT NO. 2 (BUILDING 1 — 4) Supply and return arctic pipe and expansion loops comprising: (Continued) 3" steel carrier pipe, 2" insulation surround and 7" PVC jacket pipe (2) 2 1/2" SCP, 2" insulation and 6 1/2" Pvc JP (2) 2" SCP, 2" ditto and 6" PVC JP (2) 1 1/2" SCP, 2" ditto and 5 1/2" PVC JP (2) ~ 7" arctic pipe bend/tee for 3" pipe and loop 6 1/2" ditto for 2 1/2" ditto 1,836 1,018 40 446 LF LF LF LF 41.00 38.50 30.00 75,276 397,193 1,200 9,812 10,260 3,375 TOTAL ESTIMATED COST: Continued WASTE HEAT RECOVERY SYSTEM ANIAK, ALASKA CONSTRUCTION COST STUDY SUPPLY AND RETURN ARCTIC PIPES AND EXPANSION LOOPS QUANTITY UNIT UNIT RATE PAGE 6 MAY 16, 1990 ESTIMATED COST CONCEPT NO. 2 (BUILDING 1 - 4) 6" arctic pipe bend/tee for 2" pipe and loop 5-1/2" ditto for 1 172" ditto Connect arctic pipes to buildings Excavate, backfill and dispose for arctic pipe trench (1) Ditto expansion loop at 300'0" o/c (10) 24" diameter half CMP steel culvert for a2 1,540 130 7" and 5 1/2" arctic pipe mounted on steel pipe frame at loops (10) 260 EA EA EA LF LF LF 185.00 150.00 165.00 15.25 15.25 22.50 370 1,800 1,320 23,485 1,983 5,850 WASTE HEAT RECOVERY SYSTEM PAGE 7 ANIAK, ALASKA CONSTRUCTION COST STUDY MAY. 16, 1990 SUPPLY AND RETURN ARCTIC PIPES AND EXPANSION LOOPS QUANTITY UNIT UNIT RATE ESTIMATED COST CONCEPT NO. 3 (BUILDING 1 - 6) Supply and return arctic pipe and expansion loops comprising: 8" steel carrier pipe, 2" insulation surround and 12" PVC jacket pipe (2) 386 LF 79.80 30,803 4" SCP, 2" ditto and 8" PVC JP (2) 2,402 LF 48.50 116,497 3" SCP, 2" ditto and 7" PVC JP (2) 446 LF 41.00 18,286 2 1/2" SCP, 2" ditto and 6 1/2" PVC JP (2) 496 LF 38.50 19,096 2" SCP, 2" ditto and 6" PVC JP (2) 40 LF 30.00 1,200 1 1/2" SCP, 2" ditto and 5 1/2" PVC JP 326 LF 22.00 Mp A2 1 1/4" SCP, 2" ditto and 5 1/2" PVC JP 386 LF 18.50 7,141 WASTE HEAT RECOVERY SYSTEM PAGE 8 ANIAK, ALASKA CONSTRUCTION COST STUDY MAY 16, 1990 SUPPLY AND RETURN ARCTIC PIPES AND EXPANSION LOOPS QUANTITY UNIT UNIT RATE ESTIMATED COST CONCEPT NO. 3 (BUILDING 1 —- 6) 12" arctic pipe bend/tee for 8" pipe and loop 8 EA 740.00 5,920 8" ditto for 4" ditto 36 EA 340.00 12,240 7" ditto for 3" ditto 8 EA 285.00 2,280 6 1/2" ditto for 2 1/2" ditto 8 EA 225.00 1,800 5 1/2" ditto for 1 1/2" to 1 1/4" ditto 16 EA 150.00 2,400 Connect arctic pipes to buildings 12 EA 165.00 1,980 Excavate, backfill and dispose for arctic pipe trench (1) 2,085 LF 15.25 31,796 Ditto expansion loop at 300'0" o/c (12) 156 LF 15.25 2,379 WASTE HEAT RECOVERY SYSTEM PAGE 9 ANIAK, ALASKA CONSTRUCTION COST STUDY MAY 16, 1990 SUPPLY AND RETURN ARCTIC PIPES AND EXPANSION LOOPS QUANTITY UNIT UNIT RATE ESTIMATED COST CONCEPT NO. 3 (BUILDING 1 - 6) 24" diameter half CMP steel culvert for 8" to 5 1/2" arctic pipe mounted on steel pipe frame at loops (12) 312 LF 22.50 7,020 TOTAL ESTIMATED COST: 268,010 WASTE HEAT RECOVERY SYSTEM PAGE 10 ANIAK, ALASKA CONSTRUCTION COST STUDY MAY 16, 1990 SUPPLY AND RETURN ARCTIC PIPES AND EXPANSION LOOPS QUANTITY UNIT UNIT RATE ESTIMATED COST CONCEPT NO. 4 (BUILDING 1 - 8) Supply and return arctic pipe and expansion loops comprising: 8" steel carrier pipe, 2" insulation surround and 12" PVC jacket pipe (2) 386 LF 79.80 30,803 4" SCP, 2" ditto and 8" PVC JP (2) 2,402 LF 48.50 116,497 3" SCP, 2" ditto and 7" PVC JP (2) 446 LF 41.00 18,286 2 1/2" SCP, 2" ditto and 6 1/2" PVC JP (2) 2,252 LF 38.50 86,702 2" SCP, 2" ditto and 6" PVC JP (2) 40 LF 30.00 1,200 1 1/2" SCP, 2" ditto and 5 1/2" PVC JP 326 LF 22.00 Tete 1 174" SCP, 2° ditto and 5 1/2" PYC JP 386 LF 18.50 7,141 TOTAL ESTIMATED COST Continued WASTE HEAT RECOVERY SYSTEM PAGE 11 ANIAK, ALASKA CONSTRUCTION COST STUDY MAY 16, 1990 SUPPLY AND RETURN ARCTIC PIPES AND EXPANSION LOOPS QUANTITY UNIT UNIT RATE ESTIMATED COST CONCEPT NO. 4 (BUILDING 1 - 8) 12" arctic pipe bend/tee for 8" pipe and loop 8 EA 740.00 5,920 8" ditto for 4" ditto 36 EA 340.00 12,240 7" ditto for 3" ditto 8 EA 285.00 2,280 6 1/2" ditto for 2 1/2" ditto 32 EA 225.00 7,200 5 1/2" ditto for 1 1/2" to 1 1/2" ditto 16 EA 150.00 2,400 Connect arctic pipes to buildings 16 EA 165.00 2,640 Excavate, backfill and dispose for arctic pipe trench (1) 2,885 LF 15.25 43,996 Ditto expansion loop at 300'0" o/c (18) 234 LF 15.25 3,569 WASTE HEAT RECOVERY SYSTEM PAGE 12 ANIAK, ALASKA CONSTRUCTION COST STUDY MAY 16, 1990 SUPPLY AND RETURN ARCTIC PIPES AND EXPANSION LOOPS QUANTITY UNIT UNIT RATE ESTIMATED COST CONCEPT NO. 4 (BUILDING 1 - 8) 24" diameter half CMP steel culvert for 8" to 5 1/2" arctic pipe mounted on steel pipe frame at loops (18) 468 LF 22.50 10,530 WASTE HEAT RECOVERY SYSTEM PAGE 13 ANIAK, ALASKA CONSTRUCTION COST STUDY MAY 16, 1990 1. POWER PLANT MODIFICATIONS QUANTITY UNIT UNIT RATE ESTIMATED COST CONCEPT NO. 1 Cut existing 4" pipes for new equipment (3) 12 EA 85.00 1,020 137 GPM, 1,233 MBH, 20 gauge stainless steel plate heat exchanger 3 EA 5800.00 17,400 33 GPM, 1/2 HP circulation pump 3 EA 1500.00 4,500 4" insulated schedule 40 steel header 120 LF 42.00 5,040 4" gate valves 18 EA 485.00 8,730 4" three-way control valves 3 EA 870.00 2,610 Relocate existing radiators 3 EA 750.00 2,250 4" tees and elbows 36 EA 125.00 4,500 Connections to equipment and existing pipes 24 EA 225.00 5,400 Electrical conduit, wiring and connections to pumps 3 LOTS 1500.00 4,500 TOTAL ESTIMATED COST WASTE HEAT RECOVERY SYSTEM ANIAK, ALASKA CONSTRUCTION COST STUDY 1. POWER PLANT MODIFICATIONS QUANTITY UNIT UNIT RATE ESTIMATED COST PAGE 14 MAY 16, 1990 CONCEPT NO. 2 All as Concept 1 Omit 33 GPM, 1/2 HP pump Add 61 GPM, 1 HP pump 1 LOT 3 EA 1500.00 3 EA 2750.00 55,950 (4,500) 8,250 WASTE HEAT RECOVERY SYSTEM ANIAK, ALASKA CONSTRUCTION COST STUDY 1. POWER PLANT MODIFICATIONS QUANTITY UNIT UNIT RATE ESTIMATED COST PAGE 15 MAY 16, 1990 CONCEPT NO. 3 All as Concept 1 Omit 33 GPM, 1/2 HP pump Add 103 GPM, 3 HP pump 1 LOT 3 EA 1500.00 3 EA 3750.00 55,950 (4,500) 11,250 WASTE HEAT RECOVERY SYSTEM ANIAK, ALASKA CONSTRUCTION COST STUDY 1. POWER PLANT MODIFICATIONS QUANTITY UNIT UNIT RATE ESTIMATED COST PAGE 16 MAY 16, 1990 CONCEPT NO. 4 All as Concept 1 Omit 33 GPM, 1/2 HP pump Add 138 GPM, 5 HP pump 3 3 LOT EA EA 1500.00 5150.00 55,950 (4,500) 15,450 WASTE HEAT RECOVERY SYSTEM PAGE 17 ANIAK, ALASKA CONSTRUCTION COST STUDY MAY 16, 1990 2. MODIFICATIONS TO APARTMENT COMPLEX QUANTITY UNIT UNIT RATE ESTIMATED COST CONCEPT NO. 1 - 4 Cut existing 1 1/2" pipes for new equipment 2 EA 45.00 90 25 GPM, 225 MBH, 20 gauge stainless steel plate heat exchanger 1 EA 2750.00 2,750 1 1/2" insulated schedule 40 steel header 50 LF 22.50 1,125 1 1/2" gate valves a EA 125.00 375 1 1/2" balance valves 2 EA 100.00 200 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 ANIAK, ALASKA CONSTRUCTION COST STUDY 3. MODIFICATIONS TO GYM/CLASSROOM QUANTITY UNIT UNIT RATE ESTIMATED COST PAGE 18 MAY 16, 1990 CONCEPT NO. 2 - 4 Cut existing duct for coil connections 1 1/2" to 1" insulated schedule 40 steel header (4) 1 1 1 1 1 72" 172" V2" 1/2" 1725 to 1" gate valves to 1" balance valves to 1" control valves to 1" strainers tees and elbows 380 12 4 4 4 24 Connections to equipment and existing pipes 10 Remove existing filter from furnace New filter in existing duct EA LF EA EA EA EA EA EA EA 8,550 1,500 400 500 520 1,440 500 TOTAL ESTIMATED COST: Continued WASTE HEAT RECOVERY SYSTEM PAGE 19 ANIAK, ALASKA CONSTRUCTION COST STUDY MAY 16, 1990 3. MODIFICATIONS TO GYM/CLASSROOM QUANTITY UNIT UNIT RATE ESTIMATED COST CONCEPT NO. 2 - 4 New 16"x16" duct transition 2 EA 145.00 290 24"x24" ditto 2 EA 185.00 370 New 5 GPM, 45 MBH heating coils 4 EA 350.00 1,400 New (2) stage thermostats 4 EA 115.00 460 Power connection and conduit to controls 4 EA 125.00 500 WASTE HEAT RECOVERY SYSTEM PAGE 20 ANIAK, ALASKA CONSTRUCTION COST STUDY MAY 16, 1990 4. MODIFICATIONS TO PRE-SCHOOL QUANTITY UNIT UNIT RATE ESTIMATED COST CONCEPT NO. 3 AND 4 Cut existing duct for coil connection 2 EA 50.00 100 1 1/2" insulated schedule 40 steel header 30 LF 22.50 675 1 1/2" gate valves 2 EA 125.00 250 1 1/2" balance valves 1 EA 100.00 100 1 1/2" control valves 1 EA 125.00 125 1 1/2" strainers 1 EA 130.00 130 1 1/2" tees and elbows 6 EA 60.00 360 Connections to equipment and existing pipes 4 EA 50.00 200 New filter in existing duct 1 EA 265.00 265 New 6 GPM, 54 MBH heating coil 1 EA 420.00 420 WASTE HEAT RECOVERY SYSTEM ANIAK, Sis ALASKA CONSTRUCTION COST STUDY MODIFICATIONS TO MAIN CLASSROOM QUANTITY UNIT UNIT RATE PAGE 21 MAY 16, 1990 ESTIMATED COST CONCEPT NO. 2 - 4 Cut existing duct for coil connection 6 2 1/2" to 1 1/2" insulated schedule 40 steel header (3) 100 2 1/2" to 1 1/2" gate valves 9 2 1/2" to 1 1/2" balance valves 3 2 1/2" to 1 1/2" control valves 3 2 1/2" to 1 1/2" strainers 3 2 1/2" to 1 1/2" tees and elbows 18 Connections to equipment and existing pipes 12 Remove existing filter from duct 3 New filter in existing duct 3 EA LF EA EA EA EA EA EA EA 2,750 1,260 375 450 420 1,530 720 495 795 WASTE HEAT RECOVERY SYSTEM PAGE 22 ANIAK, ALASKA , CONSTRUCTION COST STUDY MAY 16, 1990 5. MODIFICATIONS TO MAIN CLASSROOM QUANTITY UNIT UNIT RATE ESTIMATED COST CONCEPT NO. 2 - 4 New 16"x16" duct transition 3 EA 145.00 435 24"x24" ditto 3 EA 185.00 555 New 12 GPM, 108 MBH heating coils 3 EA 570.00 1,710 New (2) stage thermostats 3 EA 115.00 345 Power connection and conduit to controls 3 EA 125.00 375 WASTE HEAT RECOVERY SYSTEM PAGE 23 ANIAK, ALASKA CONSTRUCTION COST STUDY MAY 16, 1990 6. MODIFICATIONS TO SPECIAL EDUCATION CLASSROOM QUANTITY UNIT UNIT RATE ESTIMATED COST CONCEPT NO. 2 - 4 Cut existing 2" pipes for new equipment 2 EA 50.00 100 8 GPM, 72 MBH, 20 gauge stainless steel (3) chamber plate heat exchanger 1 EA 1850.00 1,850 2" insulated schedule 40 steel header 40 LF 23\.75 950 2" gate valves 3 EA 185.00 555) 2" balance valves 2 EA 150.00 300 2" tees and elbows 8 EA 75.00 600 Connections to equipment and existing pipes 8 EA 80.00 640 WASTE HEAT RECOVERY SYSTEM PAGE 24 ANIAK, ALASKA CONSTRUCTION COST STUDY MAY 16, 1990 7. MODIFICATIONS TO OFFICE BUILDING QUANTITY UNIT UNIT RATE ESTIMATED COST CONCEPT NO. 1 - 4 Cut existing 1" pipes for new equipment 2 EA 35.00 70 8 GPM, 72 MBH, 20 gauge stainless steel plate heat exchanger 1 EA 1850.00 1,850 1" insulated schedule 40 steel header 40 LF 18.50 740 1" balance valves 2 EA 85.00 170 1" gate valves 3 EA 105.00 315 1" tees and elbows 12 EA 50.00 600 Connections to equipment and existing pipes 8 EA 50.00 400 WASTE HEAT RECOVERY SYSTEM ANIAK, ALASKA CONSTRUCTION COST STUDY 8. MODIFICATIONS TO ADMINISTRATION BUILDING QUANTITY UNIT UNIT RATE CONCEPT NO. 4 ONLY Cut existing 2 1/2" pipes for new equipment 35 GPM, 315 MBH, 20 gauge stainless steel plate heat exchanger 2 1/2" insulated schedule 40 steel header 1 1/2" ditto to heating coil 2 1/2" to 1 1/2" gate valves 2 1/2" to 1 1/2" balance valve 2 1/2" to 1 1/2" tees and elbows Connections to equipment and existing pipes New 20 GPM, 180 MBH heating coil in existing furnace New (2) stage thermostat Power connection and conduit to controls 40 40 14 10 EA EA LF EA EA EA EA EA 55.00 2950.00 25.00 22.50 140.00 140.00 60.00 70.00 1150.00 115.00 125.00 PAGE 25 MAY 16, 1990 ESTIMATED COST 2,950 1,000 900 700 280 840 700 ANIAK WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 11, 1990 Raw Data POWER PLANT Generators: Caterpillar 3508 (2 ea.) & 353 (2 ea. back-up) Radiators: IEA V0013S01 Operating Conditions during site visit: 265 KW Min. Return Temp to Generator: Not available. Engine Design Flow and Max External Pressure: Not avallable. USER BUILDINGS Kuspuk School District Building Boller: 1 ea. Burnham V-26, 247 MBH Boller Supply Setpoint Temp.: 190 Actual Boller Return/Supply Temp.: Not avaliable. Circ Pump(s): P-1 Grundfos UMS 50-80 Circ Pump(s) Pressure: Not available. Apartment Complex Bollerts): Bumham CB-6, 183 MBH (2 each) Boller Supply Setpoint Temp.: 195 Actual Boller Return/Supply Temp.: 175 Circ Pump(s): CP-1 Grundfos Cire Pump(s) Pressure: Not available. ANIAK WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN Office Bullding Boller(s): Bumham V-14A-T, rated at 108 MBH Boller Supply Setpoint Temp.: 170 Actual Boller Return/Supply Temp.: 175 Circ Pump(s): CP-1 Grundfos UP 26-64F Circ Pump(s) Pressure: Not available. Furnace(s): 2. ea. Lennox OS7-105M, 75 MBH 2 ea. unknown Boller Supply Setpoint Temp.: N/A Classroom Building Furnace(s): 1 ea. Montag model 5 and 6 1 ea, Powrmatic model CA-20, 200 MBH out Boiler Supply Setpoint Temp.: N/A Special Ed. Boiler(s): 1 each Burnham V-14A-T, 108 MBH Boiler Supply Setpoint Temp.: 160 Actual Boller Return/Supply Temp.: Not available. MAY 11, 1990 ANIAK WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN MAY 11, 1990 Pre-school Building Furnace(s): 1 ea. Trane DU AO A09 B, 85 MBH Boller Supply Setpoint Temp.: N/A PIPING LENGTH ESTIMATION PIPENO.|LENGTH] _1[| 2] °° /[ 4; 1 140 = 2-12 3 4 4 2 1320 2-12 3 4 4 3 2202-12 3 4 4 4 540 ei ne2=1/2 4 4 5 120 ely 3 3 6 300 : - 3 3 7 70 . mi 2-1/2)| NN /1-2-1/2 8 1600 : Bost /2 9 160 1-1/2 9 1-172s‘1-1f2— «1-12 10 00) | 2-1/2) FI oes a1 / 11 40 : 2 2 2 12 140 Ste 1/2 ats 1/2) 13 0 u : 14 360 : a =1/4q 1/4 15 0 : 2 : 16 0 : 2 = 17 0 : : Ss = 18 0 H : us 19 0 : : 20 0 - : 21 0 - 7 : = SUMMARY ~ SIZE 8 0 0 360 360 6 0 0 0 0 5 0 0 0 0 4 0 0)/)/|)|):2220)||))/|)'2220; 3 0 1680 420 420 2-12 2080 940 470 ~—-2070 2 0 40 40 40 1-1/2 160 420 300 300 1-1/4 0 0 360 360 g : 8 4,170 5,770 ees Le eee CONNECTED. OPERATING PRESSURE = PUMP SIZE El . _| BHP[__HP__|__cosT __| 1 Apt, Office 33 25 22 04 0.5 $1,169 2 & Gym, Pre-sch. 61 25 30 08 1 $2,528 3 & Classmm., Special 103 25 42 17 3 $5,199 4 All 138 25 58 29 5 $8,629 Operating cost assumes $0.4595/KHW. HEAT EXCHANGER SCHEDULE i a a ees ! i : |__ CONCEPT _| [CONCEPT | | 27 3] 4] POWER PLANT MAIN HX 7 1233 xxx OFFICE BUILDING SPACE HT. RO UKE EX APARTMENT COMPLEX SPACE HT. 0s 2251) OX ek SPECIAL ED. BUILDING SPACEHT. 8 72 oe oe SCH. DIST. ADMIN. BLDG. SPACE HT. 35 315 X COIL SCHEDULE LOCATION NO. te FLOW RATE] HEAT TRANSFER] CONCEPT _] PL cons Pentangle Pir or at a GYM BUILDING =, 45 x 4 CLASSROOM BUILDING 3 108 xxx PRESCHOOL BUILDING 1 - 54 XX SCH. DIST. ADMIN. BLDG. 1 20 180 x