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Sand Point Waste Heat Recovery Report And Concept Design 1990
SAN Alaska Energy Authority 004 LIBRARY COPY SAND POINT 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 JANUARY 26, 1990 Ts ) TABLE OF CONTENTS 1.0 EXECUTIVE SUMMARY 2.0 INTRODUCTION 3.0 DESCRIPTION OF SITE VISIT 4.0 POWER PLANT DESCRIPTION 5.0 POTENTIAL WASTE HEAT USER BUILDING DESCRIPTIONS | 6.0 — RIGHT-OF-WAY/EASEMENT 7.0 CONCEPT DESIGN 8.0 ECONOMIC DATA 9.0 FAILURE ANALYSIS 10.0 CONCLUSIONS AND RECOMMENDATIONS APPENDICES ] Calculations 2. Contact Names 3. Cost Estimates a 4. Raw Data 23 24 & SAN oo SAND POINT WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN JANUARY 15, 1989 LIST OF FIGURES AND TABLES Power Plant Photographs Sand Point Power Generation - 1988 SPE Building Photographs SPE Building Fuel Oil Inventory and Use Post Office Photographs Post Office Fuel Oil Use Gas Station Photographs Store Photographs Gas Station and Store Fuel Use School Photographs School 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 - SPE Building Floor Plan Figure 7 - SPE Building Boiler Schematic Figure 8 - Post Office Floor Plan Figure 9 - Post Office Furnace Ductwork Figure 10 - Gas Station Floor Plan Figure 11 - Gas Station Boiler Schematic Figure 12 - Store Floor Plan Figure 13 - School Floor Plan Figure 14 - School Boller Schematic Figure 15 - Arctic Pipe/Trench Cross Section Graph 1 Graph 2 SAND POINT WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN 10 11 13 14 16 18 19 21 22 25 26 28 31 32 33 37 38 39 59 JANUARY 15, 1989 1.0 SAND POINT WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN JANUARY 26, 1990 EXECUTIVE SUMMARY A potential for waste heat recovery exists In the community of Sand Point. Sand Point Is located at Humboldt Harbor on the northwestem coast of Popof Island in the Shumagin Island Group. The community is located 571 air miles southeast of Anchorage. The heat energy could be recovered from the diesel engine-generator sets operated by Sand Point Electric and circulated to user buildings in the community. Five possible waste heat user buildings have been identified: the Sand Point Electric Administration Building, the U.S. Post Office, a gas station, a retail store, and the School. lt appears as if the most economical system will provide heat to SPE Administration bulld- ing, the Post Office, the Gas Station, the Store, and the school. A summary of the con- struction cost estimates along with design and SIA costs is included in the Cost Estimate Appendix. If the system Is installed connecting the above mentioned buildings, the fol- lowing are the estimated results: Estimated Project Cost $673,765 Total Fuel Oil Savings 56.575 gallons Total Annual Dollar Savings $69,327 Page 1 SAND POINT WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN JANUARY 26, 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 Sand Point. It has been estab- lished that there is a potential source and use for the heat energy, and that the community is interested in pursuing the matter. Methodology The approach for investigation and analysis has been as follows: 1 Pre-site visit information gathering: this has consisted of contact with the community officials, owners/operators of potential user buildings, and contact with the local utility. The site visit was coordinated with the local building owners/operators. 2 Field Investigation: a visit was made to the community to view the site. Photographs of the potential user buildings were taken as well as of the electrical generation bulldings 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 Sand Point is a community of 795 persons located at Humboldt Harbor on the northwestern coast of Popof Island in the Shumagin Island Group. The com- munity is located 571 air miles southeast of Anchorage. Most of the terrain is steeply rolling with rocky areas near town. See Figure 3 in Section 7 for a partial community site plan. Page 2 2.4 SAND POINT WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN JANUARY 26, 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 Bullding Code (UBC) Uniform Fire Code (UFC) National Electrical Code (NEC - 1987) National Fire Protection Association (NFPA) Codes Page 3 SAND POINT WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN JANUARY 26, 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 field contacts and contacts made by phone. 3.2 Fleld Contacts The following people were contacted in the field: Donna Rogers, Office Manager - Sand Point Electric Dennis Whitney, Sand Point Fuel Dave Paulus, Operator - Sand Point Electric Chick Beckley, Principal at Sand Point School Don Eubank, Maintenance Man at Sand Point School Noel Hemenover, Postmaster - Sand Point Post Office Richard Cumberlidge, Caretaker for Gas station/Store Page 4 .» SAND POINT WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN JANUARY 26, 1990 4.0 POWER PLANT DESCRIPTION 4.1 4,2 4.3 Narrative Description The power plant is currently located In the developed part of town relatively close to the harbor. However, the land on which tt Is located does not belong to the utility and the current lease will expire this year (1990). As a result, a new power plant building is being designed by the Dryden and LaRue of Anchorage (consulting engineers). Current plans are for groundbreaking for the new bulld- ing in spring of 1990. All of the major equipment from the existing plant will be relocated to the new building. The proposed site for the new power plant is adjacent to the existing Sand Point Electric Administration building. The land Is located at the top of a small hill to the east of the main part of town. The land Is located on the main road which connects the town and the airport. The new power plant building will be located 55 feet from the existing ad- ministration building. Power Is currently produced mainly through the use of a Caterpillar 3512. In addition there are two Caterpillar D398’s, and two D379’s. Any or all of the generators can operate in parallel. The utility uses number 2 fuel oll throughout the year. The power plant provides power for most of the community with the exception of the cannery which has Its Own power plant. 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 4.4 SAND POINT WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN JANUARY 26, 1990 Available Load Information Refer to the attached Table | indicating historical power production. This infor- mation is from Sand Point Electric for the year 1988. Figures for other years are also available. The large increase in power production which occurred in May of 1989 when a large consumer, Trident Seafoods which normally produces its own power, purchased power instead of using Its own production facilities. Page 6 PHOTO 1: POWER PLANT SITE Site location PHOTO 2: POWER PLANT SITE Site and existing SPE Building Page 7 TABLE 1 SAND POINT POWER GENERATION 1989 KWH MONTH JAN 377,920 720 525 FEB 316,160 696 454 MAR 310,720 744 418 APR 312,960 720 435 MAY 506,880 744 681 JUNE 314,880 720 437 JULY 251,840 744 338 AUG 297,280 744 400 SEP 250,560 720 348 OCT 284,800 744 383 NOV 312,640 720 434 DEC 331,840 744 446 ** ANNUAL 3,868,480 8760 442 “* Actually for December of 1988. Page 8 2 SAND POINT WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN JANUARY 26, 1990 5.0 POTENTIAL WASTE HEAT USER BUILDING DESCRIPTIONS 5.1 5.2 General During the site visit, all buildings within a reasonable distance of the power plant, and with a significant heating load were considered. The buildings were visited and Information about them gathered. The information is presented below. Photographs accompany each building description. Plans and schematics can be found in Section 7. Sand Point Electric Administration Building General This particular building serves a variety of purposes. It house the administration function of Sand Point Electric, It contains the SPE maintenance shop, and a par- tial second floor contains apartments. The building was completed and oc- cupied in June of 1989. It is a two-story slab-on-grade structure of wood and steel construction. It measures approximately 60 feet by 80 feet with an es- timated conditioned floor area of 6720 square feet. The building Is in excellent condition. ; Heating Energy Use A single boller rated at 529 MBH output provides heating for the entire bullding through terminal heating units such as finned tube and unit heaters (in the shop). Domestic hot water is produced using a shell-and-tube heat exchanger and water from the boiler, Refer to Table 2 for the yearly fuel oil use for the building. The yearly figures were provided by the Sand Point Electric Office Manager. Monthly figures were es- timated based on the delivery records available. Since fuel has only been delivered for a six month period, figures for January through May are rough es- timates. Page 9 PHOTO 3: SPE BUILDING Building Exterior PHOTO 4: SPE BUILDING Boiler System Page 10 @B & s&s DATE 6/17 6/18 7/7 7/7 7/21 8/31 9/18 10/19 11/3 1117 11/20 11/26 12/5 12/15 JUNE JULY AUG SEP OCT NOV DEC FUEL OIL DELIVERED 25 129 212 140 20 173 148 174 150 175 189 172 136 135 165 203 2344 4,368 TABLE 2 SAND POINT ELECTRIC BUILDING FUEL USE NUMBER OF DAY Ss D ooo0qo0000 0000 oO GALLONS OF FUEL USED RDA NET HEATING USE (GALLONS 571 4,368 Page 11 wa 5.3 U.S. Post Office General The Post Office bullding is located across the street and somewhat west of the power plant proposed location. It is a wood structure with a crawl space on a CMU-block foundation. The building dimensions are approximately 70 feet by 40 feet for a conditioned area of 2800 square feet. The building was completed and occupied in 1986. It is in good condition. Heating Energy Use Two furnaces provide heating for the building. The two fumaces are identical Lennox furnaces with 140 MBH rated output and were running concurrently during the site visit. The supply air ductwork Is routed through the crawlspace. Retum air is from a single opening in the wall separating the mechanical room from the mail-sorting room. Refer to Table 3 for the yearly fuel oil use for the building. The figures for fuel oil delivery were provided by the Postmaster. Monthly figures of fuel use are based on the fuel oil delivered. Page 12 PHOTO 5: POST OFFICE Building Exterior PHOTO 6: POST OFFICE Furnace Page 13 JAN FEB MAR APR MAY JUNE JULY AUG SEP OCT NOV DEC TABLE 3 POST OFFICE FUEL OIL USE FUEL DOM. WATER |NET HEATING OIL USE HEATING USE (GALLONS) GALLONS) |(GALLONS 321 0 321 280 0 280 256 0 256 250 0 250 120 0 120 86 0 86 38 0 38 27 0 27 10 0 10 149 0) 149 242 0 242 321 0 321 * 2,100 0 2,100 ™ NOT AVAILABLE - ESTIMATED Page 14 5.4 SAND POINT WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN JANUARY 26, 1990 Gas Station General Tne gas station is a slab-on-grade bullding designed for vehicle maintenance and repair (along with refueling facilities outside the building). The building measures 60 feet by 40 feet for a conditioned space of 2400 square feet. Completion date is estimated as 1985. The building, along with the store (described later) were involved in a foreclosure and the building has been unused for 20 months. The current owner Is Key Bank/FDIC. A sale to a corpora- tion Is possible in the near future. Heating Energy Use The gas station Is heated through the use of a single hydronic boller which serves terminal heating units such as finned tube and unit heaters. The boiler is rated at 175 MBH output. The building has not been heated for the past 20 months. Fuel oil use is estimated on Table 4 assuming that the building is heated. Page 15 PHOTO 7: GAS STATION Building Exterior PHOTO 8: GAS STATION Building Boiler 5.5 SAND POINT WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN JANUARY 26, 1990 Retall Store Building General The store is a wood structure with a crawlspace and a block foundation. The upper floor area is for retail display, coolers, and a small storage/preparation area. The crawispace area is used only for storage. The building area is ap- proximately 4800 square feet. Estimated completion date of the store Is 1985. The building Is in good condition. Heating Energy Use The original heating system design called for heat capture from the store cooler and freezer condensers to be used for space heating. From reports, this tech- nique was not successful. An old fumace in poor condition was added in the crawlspace for heating of the crawlspace and portions of the upper floor. The addition of the furnace was considered a stop gap and discussions of new heat- ing systems have taken place with parties interested in the purchase of the store. Page 17 PHOTO 9: STORE Exterior Elevation PHOTO 10: STORE Existing Furnace System Page 18 TABLE 4 GAS STATION/STORE FUEL OIL USE EATING |EST.GAS STA. |EST. STORE DEGREE FUEL USE FUEL USE DAYS GALLONS GALLONS 316 a 313 ray MAR 300 518 APR 295 511 MAY 244 423 JUNE 185 320 JULY 128 221 AUG 120 208 SEP 158 274 OCT 231 400 NOV 268 464 DEC 299 517 2,857 4,944 SINCE BUILDINGS ARE UNOCCUPIED AND FUEL RECORDS ARE NOT AVAIALABLE, FUEL USE IS ESTIMATED BASED ON THE FOLLOWING ASSUMPTIONS: BOTH BUILDINGS ARE OPERATING AND HEATED TO 70 F HEAT LOSS IS APPROXIMATELY 35 BTU/SQUARE FOOT HEATING SYSTEM FUEL EFFICIENCY OF 71% Page 19 5.6 SAND POINT WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN JANUARY 26, 1990 School General The school is a wood and steel structure with a slab-on-grade foundation. It is lo- cated on a 25 acre parcel on a small rise north of the proposed power plant site. The building was occupied in 1984, It includes a gymnasium and a swimming pool. A small addition is proposed for four additional classrooms. The addition may occur as soon as the 1990 construction season. Total current floor area is approximately 40,000 square feet. Heating Energy Use The building is heated by a two fuel-oil fired boilers rated at 1391 MBH each. Ter- minal heating units include finned tube, unit heaters, and hydronic coils in air handlers. Domestic hot water is produced in shell-and-tube heat exchanger using water from the boilers. The estimates of fuel oil use are based on the fuel oll deliveries. Since the tank Is continually topped off at each delivery, It is con- sidered a reasonable method of estimating actual use. The school and pool are closed for one month of the year, generally in July. The estimated use follows in Table 5. Page 20 PHOTO 11: SCHOOL Exterior Elevation PHOTO 12: SCHOOL Existing Boiler System DATE |FUEL OIL 7/9/88 8/9/88 9/1/88 10/6/88 11/5/88 12/7/88 1/6/89 1/31/89 2/22/89 3/2/89 4/4/89 5/9/89 5/31/89 JAN FEB APR MAY JUNE JULY AUG SEP OCT NOV DEC TABLE 5 SCHOOL FUEL OIL USE NUMBER GALLONS OF DELIVERED |OF DAYS FUEL USED ELAPSED PER DAY 3071 3100 31 100 1086 36 30 3800 35 109 3100 30 103 3715 32 116 5300 30 VE 5220 25 209 3206 22 146 1558 8 195 5725 33 173 5077 35 145 1850 22 84 45,808 339 6479 5460 4770 3550 2015 2500 3270 3379 5487 45,753 ooooooooo°o°c°o oO Page 22 45,753 SAND POINT WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN JANUARY 26, 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 23 SAND POINT WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN JANUARY 26, 1990 7.0 CONCEPT DESIGN 71 System Narrative In keeping with the previous AEA recommendations, the current concept design includes one flat plate heat exchanger at the power plant. 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 allowance 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 building, 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 building 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 24 BALANCE VALVE GATE VALVE 2-WAY CONTROL VALVE 3-WAY CONTROL VALVE CHECK VALVE STRAINER UNION CIRCULATING PUMP THERMOMETER EXPANSION TANK 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 ADDITONAL COLORS TO DEFINE SYSTEMS SYMBOL LEGEND DWN BY: MD CKD BY: Ww FRYER/PRESSLEY ENGINEERING TATE 660 EAST 34th AVENUE SUITE 300 eorwar ines 1/26/90 Page 25 SS —— || — et + WALSAS ONIGTING ‘OOHSS sss NONERUSIO WAISAS YOLVUSN3O ig en -——— —— ‘ton v/a ovNnund NI 1100 M3N [ notivis sv9 | — — — 491440 LSOd (oa yai0g ‘lona v/4 JOVNUNI NI 1109 M3N ‘AdId JILINV NI SI SONIGTING 3dISinOo NNY NAOHS ONIdId 7 | Q07¢ ‘NINGY ads | [ = ANwad a3mo4] (‘dAL) M3ONVHOX LV3H sc Toe FRYER/PRESSLEY ENGINEERING (907)561-1666 660 EAST 34th AVENUE SUITE S00 ANCHORAGE, ALASKA 99603 SAND POINT WASTE HEAT RECOVERY F|P system scHemaric Page 26 7.2 7.3 74 75 SAND POINT WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN JANUARY 26, 1990 Site Plan/Routing The routing will be as shown on the attached plan. The concept 1A Is for con- nection only to the Sand Point Electric Administration building. Concept 1B also connects to the Post office. Concept 1C Is connection also to the Gas Station. Concept 1D includes the store and concept 2 continues on and connects to the School. 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 14 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 15. Page 27 B oO E3 oo a & =< ss PIPELINE PIPE SIZE 5 FSS > {} / a// SAS STATION POST OFFICE no SpE ADMIN, #2 fl rm 4 PROPOSED NEW POWER PLANT BLDG. DWN BY: SITE PLAN/PIPE ROUTING a F P CKD BY: . FRYER/PRESSLEY ENGINEERING a 660 EAST 34th AVENUE SUITE 300 1/26/90 ANCHORAGE, ALASKA 99603 (907)561-1666 Page 28 = é 3 ae 5 =z 5 8 =< s Pa RADIATOR (TYP.) EXHAUST STACK (TYP.) DYN BY: POWER PLANT mm FIP. Foor Pian TD BY . ERYER/PRESSLEY ENGINEERING [tim ANCHORAGE, ALASKA 99603 (907)561-1666 1/23/90 Page 29 YOLVY3NI9D YOLVYANID YOLVYANID YOLVY3NI9 YOLVYINID SYNSSIYd YNVL NOISNVdX3 YJONVHOX] LV3H YOLVIGVY YOLVIGVY yOLVIdVY i z “SAAIVA SNIONVIVE QNV XH 11d LV14 FIONIS HLIM 30W1d3y oniaiing JONVNALNIVA WOY4/OL Y L\ POWER PLANT - PROPOSED F\P coounc scHEMatic . FERYER/PRESSLEY ENGINEERING Page 30 TO/FROM ARCTIC PIPE ROOM FOR EQUIPMENT SPE BUILDING FP Ftoor pian . FRYER/PRESSLEY ENGINEERING ANCHORAGE, ALASKA 99503 (907)561-1866 1/23/90 Page 31 [- WORK 2% 4 TYP. od TO/FROM ARCTIC PIPE RETURN DWN BY: SPE BUILDING nN F|P soier scHematic Cio, BE . FRYER/PRESSLEY ENGINEERING |>an— ANCHORAGE, ALASKA 99503 (907)561-1666 1/26/90 Page 32 BOX LOBBY COUNTER 4S ne SPACE FOR NEW EQUIPMENT Tale MTN) I] RESTROOM PIPING RUN IN| STORAGE CRAWL SPACE TO/FROM ARCTIC PIPE POST OFFICE F|P Foor pian . FERYER/PRESSLEY ENGINEERING ANCHORAGE, ALASKA 99503 (907)561-1666 1/23/90 Page 33 [ NEW WORK t PSS See SS oS SS a \ - NEW PUMP {| PM aaa aa >>+—— DAMPER NEW COIL IN R/A STREAM ' ! ! | | | | | ! | ! I ! ' ' I ' DWN BY: POST OFFICE ™N BY: F|P Furnace ARRANGEMENT To BY . FRYER/PRESSLEY ENGINEERING |tm— ANCHORAGE, ALASKA 99603 (907)561-1666 1/26/90 Page 34 POSSIBLE SPACE FOR FUTURE EQUIPMENT . [_Freour “<4 tue | | TO/FROM ARCTIC PIPE GAS STATION DWN BY: F|P Floor pan ano . ERYER/PRESSLEY ENGINEERING |p GRCHOBAGE GLAS 60608” ” (o07)561-1008 1/26/90 Page 35 Adid DILOYV woud/OL ( ya1108 (© XH MHG rt wous/oL SYSTEM SCHEMATIC SRCHORAGR ALASKA 50608" (907)561-1666 GAS STATION 660 EAST 34th oO S Oe Ea fz] = oy Z fj Ps fx] = n” n” [=] Ae A, MS : oc, fy FiP Page 36 FREEZER AND COOLERS TO/FROM ARCTIC ee a r-44, FURNACE IN CRAWL SPACE AMPLE ROOM IN CRAWL SPACE /BASEMENT — z Ww = a = S a w = e 2 S a RETAIL STORE FP Floor pan . FERYER/PRESSLEY ENGINEERING ANCHORAGE, ALASKA 99603 (907)561-1666 Page 37 | ARCTIC PIPE ENTRY NEW EQUIPMENT BOILER ROOM F P SCHOOL FLOOR PLAN rt FRYER/PRESSLEY ENGINEERING ANCHORAGE, ALASKA 99503 (907)561—1666 Page 38 SdANd NOLLVIGVY =SdWNd XH Woo ol /AVM-€ OL MHG OL > YOLVYVdaS UIV S3NOZ MHG woud woud BOILER SCHEMATIC ANCHORAGE, tusks sos0s = 7 (907)561-1666 SCHOOL 560 EAST 34th o Zz ei me fs] (2) & O zm 3 Fa = YW ep hy fe A, WS - 2 [zy F iP Page 39 WASTE HEAT SUPPLY AND RETURN PIPING. ARCTIC PIPE F|P cross section FRYER eran aiaee BACKFILL, .COMPACT TO 95% 6” MIN. BEDDING. BEDDING, COMPACT TO 95% 6” MIN. BEDDING. DYN BY: MD. CKD BY: (PRESSLEY ENGINEERING [tae— (907)561—1666 Page 40 1/26/90 76 SAND POINT WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN JANUARY 26, 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 "LY copper or steel schedule 40 with dielectric unions at connection points of dissimilar metals. 15120 ARCTIC PIPE Arctic Pipe: Carrier pipe shall be schedule 40 steel. Insulation shall be foamed polyurethane with no voids. Thickness of insulation to be mini- mum of 2 inches. Jacket pipe shall be steel or high density polyethylene. Arctic pipe system shall include kits or fittings for take-off connections to main loop that provide water-tight seal. 15250 MECHANICAL INSULATION Piping insulation: Pipe insulation shall be fiberglas with an all-service Jacket. Minimum insulation thickness shall be 1-1/2 inches. 15750 HEAT TRANSFER Heat Exchangers: Heat exchangers shall be plate and frame type with minimum 20 gage stainless steel plates, painted steel frame with head and end support, top carrying bar, and bottom guiding bar. Ports shall be international pipe thread. Capacity shall be as specified. Accept- able manufacturers are Bell & Gossett, APV, Tranter, and Alfa Laval. Page 41 SAND POINT WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN JANUARY 26, 1990 Circulation Pumps: The primary loop circulation pump shall be a base- mounted centrifugal pump capable of 300 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 42 16020- 16021- SAND POINT WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN JANUARY 26, 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 tc be labeled for their intended use and environment by UL. CLEANING The Contractor is required to clean all surfaces of equipment and remove debris and unused materials in this sub-section. WORK INCLUDED This area of the Division 16 Specification lays out the generalized descrip- tions of the electrical systems and work required in this Project. It also covers which area of the Specifications will define the requirements for equipment or installations which must be coordinated with other building trades. WORK NOT INCLUDED This Section deals with those items which will definitely be provided within other areas of the Project’s various disciplines. An example of such an item would be the motors provided on a fan unit (obviously specified in Division 15) which is specified complete with a motor starter, disconnect or other accessories normally found in Division 16. Page 43 16032- 16111- 16120- 16131- 16147- SAND POINT WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN JANUARY 26, 1990 MANUALS AND AS-BUILT DRAWINGS Sub-paragraphs describing the required contents of the Operation and Maintenance Manuals, defining the periods of instruction for the Owner's designated personnel and the updating of information necessary to prepare record drawings of this Project's final configuration are con- tained in this Section. CONDUIT All types of raceways and their associated appurtenances will be covered in this Section of Division 16. Galvanized rigid steel conduit, PVC-coated galvanized rigid steel conduit, intermediate metallic con- duit, electrical metallic tubing, flexible metal conduit and liquid-tight flexible condult will be specified. Fittings, couplings, grounding and where each type of raceway may be used will be specified. WIRES AND CABLES Building wires and cables for the distribution, feeders and branch circuits required for this Project are defined in this Section. This Section typically covers only wire with voltage ratings below 600 V. PULL BOXES AND JUNCTION BOXES 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. DEVICE PLATES AND COVERS Surface mounted boxes shall be galvanized steel plates. Weatherproof Installations will have gasketed metal plates. Page 44 SAND POINT WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN JANUARY 26, 1990 16155- MOTOR STARTERS This Section will specify the motor contactors and controllers required by mechanical equipment. All controllers will be specified to have integral thermal overloads for motor overload protection. Combination starters utilizing circuit breakers or motor circuit protectors and that are UL listed for the application, will be acceptable. Combination starters utilizing fuses will not be allowed. 16161- GROUNDING This Section expands on the National Electrical Code requirements. 16164- BRANCH CIRCUIT PANELBOARDS Branch circuit breakers required to connect new equipment to existing panelboards will be specified in this Section. All circuit breakers will be bolt-on molded case circuit breakers of the rating and configuration necessary to serve general branch circuits and other defined loads. 16170- MOTOR AND CIRCUIT DISCONNECTS Unfused switches will be specified. Disconnects for motor applications will be required to be horsepower rated. Other disconnects will be specified to have ratings as necessary for the application. Enclosures will be NEMA 1 except where otherwise required. 16190- SUPPORTING DEVICES This Section will contain the requirements for hardware, anchors and fas- teners used to support raceways, equipment and any other electrical apparatus. Page 45 SAND POINT WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN JANUARY 26, 1990 8.0 ECONOMIC DATA 8.1 8.2 8.3 Current Fuel Oll Costs Fuel oll prices for all Sand Point customers are currently $1.18/gallon for #1 fuel oil and $1.36/gallon for #2. Displaced Costs Due to Heat Recovery The calculations that model the waste heat system are shown in the Appendix at the end of this report. These calculations essentially make comparisons of the waste heat available to the waste heat demand of the connected buildings. These comparisons are made for each hour of an average day of each month of the year. Since it may not be economically feasible to connect all of the potential build- ings, the calculations were made in a logical order of building connections, that is, the nearest building was modeled as being connected first. In this proposed order, the Sand Point Electric Administration building was connected first, then the Post Office, the Gas Station, and last the School. The results of the calculations based on the most recent fuel oil costs were as fol- lows: CONCEPT GALLONS =SSAVINGS 1A 4,368 $5,940 1B 6A68 $8,796 1c 9325 $12,682 1D 14,269 $19 A06 2B 56.575 $49,921 Summary Cost Estimate The assumptions for the cost estimate was that bidding would take place in April of 1990. Prevailing local wages as defined by the Department of Labor were used. The cost estimate is presented with costs identified for the total project, but broken out separately to show the component costs for the work at the power plant, for the arctic pipe, and for each of the connected buildings. Page 46 8.4 SAND POINT WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN JANUARY 26, 1990 Since there can be much more energy demand than is available with the con- nected buildings, the cost estimate is organized in an progressive alternate form. Energy Authority SIA (Supervision, Inspection, and Administration) and design costs are included In the figures shown below. CONCEPT COST 1A $72,309 1B $120,905 1c $145,874 1D $219,838 2 $673,765 Estimated Component Life and Maintenance Costs The following estimates of maintenance cost were made based on the in- cremental cost of technician who Is already on-site. Assumptions were made for each of the pieces of equipment regarding frequency of Inspection and repair. The total yearly maintenance cost will depend on the scope of installation. The costs for all buildings connected is shown. ttem Life (yrs) Maint. Cost (S/Yp Heat Exchangers 20 $126 (each, 6 total Circulation pumps 16 $112 (each, 2 total Arctic Pipe 15 $700 (total Interior piping 16 $70 (each location, 6 total) Interior valves 16 $140 (each location, 6 total) Expansion Tank 16 $70 (each, 2 total) Air Separator 16 $35 (each, 2 total) Glycol 15 $300 (total TOTAL (base bid) $3450/year Page 47 SAND POINT WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN JANUARY 26, 1990 9.0 FAILURE ANALYSIS 91 General The purpose of this section is to analyze the reliability of the various components of the proposed waste heat recovery system. The analysis of the system will help guide the direction of the design to avoid systems with increased failure rates and repair costs and reduced waste heat recovery effectiveness. 9.2 Identification of Major Components The following components are those whose failure Is likely in the normal course of operation and whose failure could affect the operation of the generator or waste heat recovery systems. A brief description of the component follows the identification. Circulation pump(s): This is the pump (centrifugal) that will be used to cir- culate fluid from the heat exchanger in the power plant to the user buildings through the arctic pipe. This discussion also applies to booster pumps (in-line type) that can be used in the user buildings to help overcome the additional pressure drop of the waste heat recovery system heat exchanger. A pump may also be used on the generator side of the system to help overcome the added pressure drop of the heat exchanger or the case where hydronic coils have been added to an all air system. Jacket Water Heat Exchanger: This component Is the device used to transfer heat from one liquid to another. In the design presented here, It is a flat plate, or plate and frame type heat exchanger. The device consists of vertical plates separated by gaskets with the fluid of one system flowing in alternate plates heating (or cooling) the other fluid. There are no moving parts during operation. Stack Gas Heat Exchanger: This is a device similar in concept to the jacket water heat exchanger with the exception that the fluids being considered include both a liquid (the waste heat recovery transfer medium) and a gas - the exhaust gases from the engine. Although there are no moving parts, the heat exchanger surface is subject to very high temperatures from the exhaust gases (to 1400 degrees F). Radiator(s): These devices are part of the generation system rather than the waste heat recovery portion. They are used to provide cooling for the engines by transferring heat from the engine coolant to the atmosphere. In conjunction Page 48 9.3 SAND POINT WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN JANUARY 26, 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 valve to serve the same function. Exterior piping (arctic pipe): The arctic pipe is a pipe-within-a-pipe system used for transferring fluid between locations. The center pipe, or carrier pipe is used for fluid transfer. The carrier pipe is Insulated to reduce heat transfer. Outside the insulation Is a second pipe called the jacket. This is used to protect the insulation. Interior piping/valves: 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. Failure 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 fallure 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 fail by the failure of Its in- dividual components. These Include shaft seals, shaft bearings, motor, Impeller, or casing. Impeller or casing failure is not expected to occur before the life of the com- ponent has been reached. This life is expected to be 15 years. Generator Operational Impact: Since failure of a booster pump used on the gener- ator side of the system could result in a high-temperature shut-down of the engine, its use Is not recommended. The likely reason for addition of a booster pump Is to over- come additional pressure drop imposed by the system by new heat recovery equip- Page 49 SAND POINT WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN JANUARY 26, 1990 ment. To avoid the need for the pump, the system should be designed to keep addi- tional pressure drop below the maximum rated pressure drop of the engine mounted pump. Waste Heat System Operational Impact: Where only a single circulation pump has been installed for heat transfer services, Its failure could result in complete suspension of heat recovery. Shaft seal and shaft bearing failures in their early stages would have little effect on operation but could eventually reduce heat recovery to zero after complete failure. When duplex pumps have been installed, the heat recovery will be affected only until the standby pump can be put into service which can occur minutes after the fallure is noted. Environmental Impact: Minor - a shaft seal failure could result In a slow fluid leak that could reach the ground outside. Required Immediate Actions: If no significant loss of fluid has occurred (due to shaft seal failure), replacement of the pump will restore the system to service. The pump should be isolated with the valves on either side of the pump, fluid checked and proper fluid level restored as needed, and the back-up pump (if installed) started. Jacket Water Heat Exchanger Failure Mode: Since there are no moving parts, the failure of this component can occur from failure of the gaskets, or failure on the frame or plates. Since the plates are generally of stainless steel, failure is unlikely during the rated life of the equipment - or approximately 20 years. The frame is also unlikely to fail during the 20 year life. The only probable failure during the life would be the gaskets, probably exhibited as a slow leak that worsens with time. Generator Operational Impact: If the gaskets 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 failed gaskets, the system could be in- capactitated. Page 50 SAND POINT WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN JANUARY 26, 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 fallure of operating or maintenance personnel to use compatible glycol for system make up. Required Immediate Actions: If an engine side gasket has failed, the heat ex- changer should be bypassed and manual shut-off valves used on the leaking side. If the leak occurs on the waste heat side, isolation valves should be closed and the circulation pump shut off. Stack Gas Heat Exchanger Failure Mode: Three mechanisms can lead to this component failure. The first is through operational wear. This wear is caused by the passage of hot exhaust gases over the heat exchanger surface. The failure through this mechanism determines the life of the equipment which is approximately 5 years. Two other forms of failure can occur: the first is through thermal shock by passage of relatively cold fluid into the exchanger which has been heated to the exhaust gas temperature. Sudden contraction will destroy the heat exchanger. The second type of failure could occur if the heat exchanger is kept at too low of a temperature allowing sulfuric and hydrochloric acids to form from the exhaust gases. Resulting rapid corrosion would result in the heat exchanger failure. Generator Operational Impact: If the heat exchanger is located away from the generator, Its failure would probably not release glycol onto the engines surface. Since the flow path of the exhaust gases would not be any more restricted after failure, no significant backpressure Is expected to develop. If the stack gas heat exchanger is used to heat fluid after passing through the main jacket water heat exchanger, no loss of en- gine coolant will occur. However, to avoid pipe contamination, the generator should be shut down. If avallable 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 51 SAND. POINT WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN JANUARY 26, 1990 Required Immediate Actions: After failure of the stack gas heat exchanger, the exchanger should be isolated with valves and a bypass mechanism used for the stack gases. Fluid should be added to make up for losses, and lost fluid collected where pos- sible. Radiator(s) Failure Mode: The main component of the radiators is the heat exchanger for cooling of the liquid. The heat exchanger Is expected to last the life of the radiator or 15 years. The other modes of failure are similar to for circulation pumps: shaft bearings or motors, or controls. The controls in this case are assumed to be variable speed controls for the fan motor. Generator Operational Impact: Failure through leakage would drain the fluid and cause a low water shutdown of the generator. Failure of the fan-related hardware would result in insufficient cooling and a high-temperature shut down. Waste Heat System Operational Impact: There would be no effect on the waste heat system until generator shut down. At that time of course, no more heat would be avall- 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 isolated and an alternate radiator used for cooling until repairs can be made. Control Valve(s) Failure Mode: The valve casing is expected to last the life of the valve or 20 years. The most likely failure before the life is reached is that of leaking seals or seats, or failure of the operating mechanism. The seal or seat failure will normally result in a low-loss leak of fluid until repaired. The control mechanisms that can be used in this instance include Amot type operators which use the expansion characteristics of wax to operate the valve or electric motor driven operators. Although Amot-type operators fail less fre- quently than electric motor operators, they have the disadvantages of less control (which means less heat recovery) and do not indicate current control position. Page 52 SAND POINT WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN JANUARY 26, 1990 Generator Operational Impact: Failure of the operators will normally result in loss of control. Often time these failures can occur at a mixing condition which may not im- mediately cause a system failure. The extreme cases would result in overheating. Waste Heat System Operational Impact: As discussed above, a failure in a mixing mode may not cause complete failure, but it is possible. Environmental Impact: Minor - only small leaks normally develop through seal and seat failures. Required Immediate Actions: The valve should be isolated as soon as the seat or seal failure is discovered. If the failure is an electric operator, the valve could be manually positioned to an acceptable position untll the operator can be replaced. When an Amot-type vaive Is used, manual bypass valves can be used. Exterior piping (arctic pipe) Failure Mode: The only failure mode likely to interfere with the system operation would be a fluid leak at a joint. Generator Operational Impact: None. Waste Heat System Operational Impact: A significant leak would shut down the sys- tem. Environmental Impact: The leaking fiuid could drain the entire piping system. Required Immediate Actions: The pump would be turned off, the system drained as much as possible, and the leaking line isolated as close to the leak as possible. Interior piping/valves Fallure Mode: Interior piping joints will normally last the length of the pipe life - about 20 years - unless physically damaged. The valves may suffer the same failures as men- tioned above for control valves. Generator Operational Impact: A fluid leak would generally be small but it is pos- sible that enough fluid would leak until a low water shut down occurred. Waste Heat System Operational Impact: Same as for Generation system effect. Page 53 SAND POINT WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN JANUARY 26, 1990 Environmental Impact: Minor. Required Immediate Actions: Isolate the leaking valve, shut off pump ff fluid loss is significant. 9.4 Fallure Frequency and Cost Frequencies of failure have been estimated based on conversations with manufacturers and on engineering judgment. Assumptions made regarding the repair include: On-site operator's skill are that of a “caretaker.” Skilled preventive maintenance is performed 3 times yearly. A one day weather delay Is included for all winter repair trips. Travel to site for repair is via jet, and then charter. Skilled mechanics are mobilized from Anchorage, Fairbanks, or Juneau as ap- propriate. Costs are based on $43/hour labor costs. Travel time Is 12 hours round trip. Travel cost is $600 round trip. Subsistence costs are $100 per day. Qrwon-> 0G o> Circulation pump(s) Most common failure: Shaft seal, shaft bearings, or motor. Frequency of Occurrence: 0.1 per year Repair Cost: $1900/occurrence Estimate of Down Time: 2 days after discovery Effects of System Life on Frequency: Increase in probability only. Page 54 SAND POINT WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN JANUARY 26, 1990 Jacket Water Heat Exchanger Most common failure: Gasket failure. Frequency of Occurrence: 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 Occurence: 1peryear Repair Cost: $6600/occurrence Estimate of Down Time: 30 days Effects of System Life on Frequency: No effect due to frequent expected replacement Radiator(s) Most common failure: Motor failure Frequency of Occurrence: 0.1 per year Repair Cost: $1800/occurrence Estimate of Down Time: 5 days Effects of System Life on Frequency: Increased probability. Page 55 SAND POINT WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN JANUARY 26,.1990 Control Valve(s) Most common failure: Electric operator (seal for Amot valve) Frequency of Occurrence: 0.33/year (0.1 for Amot valve) Repair Cost: $1800/occurrence Estimate of Down Time: 3 days Effects of System Life on Frequency: Increasing 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 Occurrence: 0.25 per year Repair Cost: $1800/occurence Estimate of Down Time: 2 days Effects of System Life on Frequency: Increased likelinood due to wear Page 56 SAND POINT WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN JANUARY 26, 1990 9.6 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 is 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 building connected the waste heat recovery system use a heat exchanger. In the event of Q distribution piping failure, the building’s heating system would continue to operate without in- terruption. Page 57 SAND POINT WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN JANUARY 26, 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 Sand Point. 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 Sand Point. The first graph entitled “Heat Available Vs. Heat Required" shows the relationship be- tween these two quantities for each month of a year. The highest line represents the heat available from the power plant in terms of equivalent gallons of fuel oil. Each of the other three lines represent a construction option: the concept 1B, the concept 1D, and the concept 2. The graph shows that the Concept 2 is the only concept which comes close to using all of the energy available. The second graph is entitled "Fuel Oil Displaced" and shows the amount of recovered energy in equivalent gallons of fuel oll for each of the three construction options for the year. A similar shape as was shown in the previous graph is displayed demonstrating large difference between Concept 1D which does not connect the school, and Con- cept 2 which does. Over 42,000 additional gallons of fuel oil would be saved per year by connecting the school. Page 58 6S eBeq 40,000 30,000 re oe ee 20,000} = ano atteee Bors nnsnecarlncadshenelcnenenianans DSigginsnnahecgseetitr set Steiassaveanlencedatogeee ere re sb ecedashan teens 40,000 rons tccccteccctttcecceeeeee Besse es eerdeeaeteceseoes Son deveerplectee in estan 1/26/90 SAND POINT WASTE HEAT RECOVERY HEAT AVAILABLE VS. HEAT REQUIRED FUEL OIL EQUIVALENT (GALLONS) 5 Te t——T JAN FEB MAR APR MAY JUNE JULY AUG SEP OCT NOV DEC MONTH OF THE YEAR LEGEND —— HEAT AVAILABLE —— HEAT REQ. - 1B —*— HEAT REQ. - 1D —S— HEAT REQ. - 2 09 e6ey SAND POINT WASTE HEAT RECOVERY FUEL OIL DISPLACED FUEL OIL EQUIVALENT (GALLONS) 8,000 6,000 4,000 2,000 0 JAN FEB MAR APR MAY JUNE JULY AUG SEP OCT NOV DEC MONTH OF THE YEAR LEGEND HM CONCEPT 1B) =6 CONCEPT 1D CONCEPT 2 1/26/90 APPENDIX Ts Calculations 2. Contact Names 3. Cost Estimates 4. Raw Data SAND POINT WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN JANUARY 26, 1990 SAND POINT WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN JANUARY 26, 1990 Calculations SAND POINT WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN JANUARY 26, 1990 WASTE HEAT RECOVERY CALCULATION METHOD Input Before the calculation of recovered waste heat can take place, the user must input in- formation about power production, fuel use, and system heat loss. The Information Is for each month of a year. The year is assumed to be either an average year or a represen- tative year. The power production information must include the amount of power produced for each month of a year and the amount of heat rejected to the jacket water for each KWH of power produced. The power production is from historical records and the heat rejection data Is from the manufacturer of the engine/generators being used for power production. The fuel use data Is for each of the potential waste heat user bulldings. 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 oil use. The system heat loss is a number that represents the energy that Is rejected to the jacket water, but Is lost or used before It can be used by the end user buildings. Examples of this system loss can include: heat loss of the generator cooling system piping, heat loss from the arctic pipe, and heat recovery in the power plant for space heating or fuel oil heating. This figure must be estimated based on available information. Assumptions The most important assumptions made in this model are the diumal variation of the heat demand, and the power production. The figures shown in the calculations represent a “typical” patter 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. SAND POINT WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN JANUARY 26, 1990 When calculating the energy demand for the buildings based on their fuel oil use, It is as- sumed that each gallon of fuel oll corresponds to 100,000 BTU. This represents ap- proximately a 71% efficient boller 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 available for building use. Tne heat required by the buildings is accomplished in a similar manner. The sum of all the buildings fuel use is multiplied by 100,000 BTU/gallon and adjusted to yield the hourly heat demand for the average day of the month. The heat recovered Is just the smaller number of the heat available and the heat demand; if the heat available is larger than the heat demand, all of the heat available will be used. If the reverse Is true and much more heat is available, then all of the build- Ing heat demand requirements will be met. The number of gallons displaced also as- sumes that each 100,000 BTU corresponds to one gallon of fuel oil. SAND POINT WASTE HEAT RECOVERY ESTIMATION PAGE 1 CONCEPT 1A WASTE HEAT UTILIZATION SIMULATION WORK SHEET. Location: SAND POINT Date:January 26, 1990 Heat rate: 2248 Btu/kwh produced System loss: 58,008 Btu/hour (FOR ALL SYSTEMS CONNECTED) Total Gen.: 3,868,486 kwh/year ANNUAL Local degree days: 981.6 978.8 929.5 915.8 757.6 573.4 395.8 373.1 498.9 716.8 9832.7 927.0 8,865 Assumed diurnal heat Power plant monthly generation: demand variation: 22------------- Monthly JAN FEB MAR APR MAY JUN JUL AUG SEP oct NOV DEC CHECKSUM Fraction:8.89769 8.88172 6.08032 6.08089 0.13182 6.08139 6.06518 6.07684 6.06476 6.07362 6.08081 6.08578 1 Winte Summer Hour Kwh: 377,928 316,168 318,728 312,968 586,880 314,880 251,840 297,280 250,560 284,800 312,640 331,840 3,868,480 Diurnal 0.0494 6.0494 1 variation 8.038 6.038 06.038 6.038 6.045 8.045 0.045 6.045 6.045 6.045 6.038 6.038 9.0477 6.0477 2 8.056 6.036 6.036 8.036 0.046 6.046 0.040 6.040 6.040 0.040 6.036 0.036 0.0460 6.0460 eo 8.034 8.034 6.034 6.034 6.036 6.036 6.036 6.036 0.036 6.036 6.034 6.034 0.0443 6.0443 4 8.034 8.034 6.034 6.034 6.035 6.035 6.035 6.035 6.035 6.035 6.034 6.034 0.0428 6.0428 5 8.033 6.033 6.033 6.033 6.035 8.035 6.035 6.035 6.035 6.035 6.033 6.033 0.0414 6.0414 6 6.034 6.034 8.034 68.034 6.038 8.038 68.038 0.038 6.038 0.038 0.034 0.034 0.0401 6.0401 7 8.038 8.038 6.038 8.038 0.038 0.038 0.038 6.038 6.038 6.038 6.038 6.038 0.0398 6.0390 8 6.042 8.042 6.042 6.042 6.046 6.040 6.040 0.040 6.040 6.040 6.042 6.042 0.0381 6.0381 9 6.042 8.042 6.042 6.042 6.045 6.045 6.045 6.045 0.045 6.045 6.042 6.042 8.0374 8.0374 16 0.047 6.047 6.047 6.047 6.047 6.047 6.047 6.047 6.047 6.047 6.047 9.047 0.0376 6.0378 1 8.048 6.048 6.048 6.048 0.040 0.040 0.040 0.040 6.040 6.040 6.048 6.048 6.0367 6.0367 12 6.047 6.047 6.047 6.047 6.048 6.048 6.048 06.048 0.048 6.048 6.047 6.047 0.0367 6.0367 13 6.045 6.045 6.045 6.045 6.058 6.050 6.050 6.050 0.050 6.058 6.045 6.045 0.0378 6.0370 14 8.047 8.047 6.047 6.047 8.052 8.052 6.052 6.052 6.052 6.052 6.047 6.047 6.0374 6.0374 15 6.048 6.048 6.048 6.048 0.050 6.050 6.050 0.050 6.050 6.050 0.048 6.048 6.0381 6.0381 16 6.048 6.048 6.048 6.048 6.058 6.058 6.050 0.050 0.050 6.058 6.948 6.048 8.0398 6.0398 17 6.049 6.049 6.049 6.049 6.045 6.045 6.045 0.045 6.045 6.045 6.049 6.049 6.0401 6.6461 18 8.046 6.046 6.046 6.046 8.047 0.047 06.047 6.047 6.047 6.047 6.046 0.046 6.0414 6.0414 19 0.043 6.045 6.045 8.043 8.050 8.058 6.058 6.058 6.050 6.050 6.043 6.043 0.0428 6.0428 20 6.038 8.038 6.058 6.038 6.045 6.045 6.045 6.045 6.045 0.045 6.038 6.038 8.0443 6.0443 21 6.038 8.038 8.038 6.038 8.041 08.041 6.041 6.041 6.041 6.041 6.038 6.638 0.0460 0.0460 22 6.041 8.041 6.041 0.041 6.041 6.041 6.041 0.041 0.041 6.041 6.041 6.041 6.0477 6.0477 23 6.045 0.045 6.045 6.045 0.041 6.041 6.041 0.041 6.041 6.041 6.045 6.045 5.0494 6.6494 24 6.040 8.046 6.046 6.040 6.043 6.043 6.043 6.043 0.043 6.043 6.040 0.040 Building use per month, gallons of fuel oil BUILDING 1A - SPE ADMIN. BUILDI 1A 571 443 277 238 322 333 333 322 238 277 443 571 4,368 BUILDING 1B - POST OFFICE 1B 6 6 6 6 6 6 6 6 6 6 6 6 6 BUILDING 1C - GAS STATION 1C 6 6 6 6 6 6 6 6 6 6 6 6 6 BUILDING 1D - STORE 1D 6 6 8 6 6 6 6 6 6 6 6 6 BUILDING 2 - SCHOOL 2 6 6 a 6 6 6 6 g 6 6 o 6 6 BUILDING 6 g 6B 6 6 6 6 6 6 6 6 6 6 SAND POINT WASTE HEAT RECOVERY ESTIMATION BUILDING 7 BUILDING 8 BUILDING 9 1 2 3 4 5 6 7 8 9 10 WV 12 13 4 15 16 17 18 19 28 21 22 23 24 1 2 3 4 571 443 277 PAGE 2 238 322 333 Heat available per hour by month (BTU) JAN FEB MAR APR 1087488 834665. 951823. 788104. 896166. 741543. 896166. 741543. 868338. 718262. 896166. 741543. 1087488 834665. 1118794 927788. 1118794 927788. 1257936 1844192 1285764 10867472 1257936 1844192 1262279 997638. 1257936 1644192 1285764 1067472 1285764 1067472 1313593 1098753 1238187 1620911 1146622 951869. 1087488 834665. 1087480 834665. 1098965 984528. 1262279 997638. 1863137 881227. 819443. 773683. 727923. 727923. 705843. 727923. 819443. 918964. 910964. 1825364 1048245 1825364 979604. 1825364 1048245 1048245 1871125 1082484 933844. 819443. 819443. 888084. 979684. 865204. 825711. 779621. 733531. 733531. 718486. 733531. 825711. 917892. 917892. 1033117 1856162 1033117 987627. 1033117 1056162 1056162 1679287 1610872 940937. 825711. 825711. 894847, 987627. 871801. MAY JUN 1629662 993389. 1442979 877457. 1293681 784711. 1256357 761525. 1256357 761525. 1368338 831084. 1368338 831084. 1442979 877457. 1629682 993389. 1784251 1839762 1442979 877457. 1741575 1862948 1816224 1189321 1898873 1155694 1816224 1189321 1816224 1169321 1629682 993389. 1784251 1039762 1816224 1169321 1629662 993389. 1488304 900643. 1480384 900643. 1480384 900643. 1554953 947816. 333 JUL 784499. 691777. 617599. 599055. 599055. 654688. 654688. 691777. 784499. 821588. 691777. 840132. 877221. 914318. 877221. 877221. 784499. 821588. 877221. 784499. 710321. 718321. 718321. 747416. 322 AUG 935869. 825617. 738055. 716165. 716165. 781836. 781836. 825617. 935669. 978858. 825617. 1008741 1044522 1888382 1044522 1844522 935069. 978858. 1044522 935069. 847508. 847588. 847508. 891288. 238 SEP 786257. 688007. 614286. 595756. 595756. 651106. 651166. 688007. 786257. 817158. 688087. 835688. 872568. 989409. 872588. 872588. 788257. 817158. 872588. 786257. 706457. 766457. 766457. 743357. 277 ocT 893715. 788858 . 704972. 684001. 684001. 746915. 746915. 788858. 893715. 935658. 788858. 956638. 998573. 1040516 998573. 998573. 893715. 935658. 998573. 893715. 889850. 889838. 809838. 851773 443 NOV 824816. 778773. 732738. 732738. 709769. 732738. 824816. 916982. 916982. 1032889 10550831 1832669 985966. 18320089 1055831 1055831 1878852 1068988 939923. 824816. 824816. 893888. 985966. 876859. 3E+O7 «= 2E+07 «= 2E+07 «= 2E+O7 «= 4E+O7 «= 2E+07 «= 2E+07 «= 2E+07 «= 2E+07 «= 2E+07 «=. 2E+07 Heat demand by hour by month (BTU) JAN FEB MAR APR MAY JUN JUL AUG 92755.5 71962.7 44997.8 38661.6 52386.9 54893.8 54893.8 52306.9 38661.6 44997.6 71962.7 89504.2 69448.2 43419.7 37306.4 50473.4 52197.7 52197.7 50473.4 37306.4 43419.7 69446.2 89504.2 86313.4 66964.7 41871.8 35976.5 48674.1 58336.9 58536.9 48674.1 35976.5 41871.8 66964.7 86313.4 83242.6 64582.3 40382.1 34696.5 46942.4 48546.6 48546.0 46942.4 34696.5 40382.1 64582.3 85242.6 5 88349.1 62337.4 38978.4 33498.5 45318.7 46858.5 46858.5 45318.7 33498.5 38978.4 62337.4 80349.1 6 77686.6 68271.7 37686.8 32388.7 43889.2 45305.8 45305.8 43889.2 32388.7 57686.8 60271.7 77686.6 7 75304.9 58423.9 36531.4 31388.6 42466.1 43916.8 43916.8 42466.1 31388.6 36531.4 58423.9 75304.9 8 73248.2 56828.3 35533.7 50530.7 41366.3 42717.4 42717.4 41306.3 30530.7 55533.7 56828.5 75248.2 9 71554.9 55514.6 34712.2 29825.6 40351.4 41729.9 41729.9 40351.4 29825.6 34712.2 55514.6 71554.9 16 78256.5 54587.2 34082.4 29283.8 39619.2 40972.7 40972.7 39619.2 29283.8 34882.4 54587.2 76256.5 11 69377.3 53825.1 33655.8 28917.3 39123.4 48459.9 48459.9 39123.4 28917.3 33655.8 53825.1 69377.3 12 68933.5 53480.8 3344.6 28732.3 38873.2 40201.1 40201.1 38873.2 28732.3 33440.6 53480.8 68933.5 13 68933.5 53480.8 33440.6 28732.3 38873.2 40261.1 40261.1 38873.2 28732.3 33440.6 53480.8 68933.5 14 69377.3 53825.1 33655.8 28917.3 39123.4 48459.9 40459.9 39123.4 28917.3 33655.8 53825.1 69377.3 SEP OCT NOV 571 DEC 878541. 829678. 788799. 786799. 756364. 788799. 878541. 976282. 976282. 1898458 1122894 1898458 1849588 1898458 1122894 1122894 1147329 1674823 1606717 878541. 878541. 951846. 1649588 927411. 2E+87 DEC 92755.5 CONCEPT 1A 4,368 ANNUAL 8.41E+89 SAND POINT WASTE HEAT RECOVERY ESTIMATION PAGE 3 CONCEPT 1A 15 70256.5 54507.2 34082.4 29283.8 39619.2 40972.7 40972.7 39619.2 29283.8 34082.4 54587.2 76256.5 16 71554.9 55514.6 34712.2 29825.0 40351.4 41729.9 41729.9 40351.4 29825.6 34712.2 55514.6 71554.9 17 73248.2 56828.3 35533.7 30530.7 41306.3 42717.4 42717.4 41306.3 30530.7 35533.7 56828.3 73248.2 18 75304.9 58423.9 36531.4 31388.6 42466.1 43916.8 43916.8 42466.1 31388.6 36531.4 58423.9 75304.9 19 77686.6 68271.7 37686.8 32380.7 43809.2 45305.8 45305.8 43809.2 52380.7 57686.8 66271.7 77686.6 28 80349.1 62337.4 38978.4 33498.5 45318.7 46858.5 46858.5 45310.7 33490.5 38978.4 62337.4 80349.1 21 83242.6 64582.3 40382.1 34696.6 46942.4 48546.6 48546.8 46942.4 34696.6 4382.1 64582.3 83242.6 22 86313.4 66964.7 41871.8 35976.5 48674.1 58336.9 58536.9 48674.1 35976.5 41871.8 66964.7 86313.4 23 89504.2 69448.2 43419.7 37506.4 56473.4 52197.7 52197.7 50473.4 37386.4 43419.7 69440.2 89504.2 24 92755.5 71962.7 44997.8 38661.6 52306.9 54893.8 54093.8 52306.9 38661.6 44997. 71962.7 92755.5 ANNUAL 1877054 1456278 918585. 782388. 1858514 1894674 1894674 1858514 782388. 910585. 1456278 1877854 436800000 Heat delivered by hour by month (BTU) JAN FEB MAR APR MAY JUN JUL AUG SEP ocT NOV DEC 1 92755.5 71962.7 44997.8 38661.6 52306.9 54093.8 54093.8 52306.9 38661.6 44997.8 71962.7 92755.5 2 89504.2 69448.2 43419.7 37386.4 58473.4 52197.7 52197.7 50473.4 37306.4 43419.7 6944.2 89504.2 3 86313.4 66964.7 41871.8 35976.5 48674.1 58336.9 58336.9 48674.1 35976.5 41871.8 66964.7 86313.4 4 83242.6 64582.3 4382.1 34696.5 46942.4 48546.0 48546.0 46942.4 34696.5 40382.1 64582.3 83242.6 5 88349.1 62337.4 38978.4 33498.5 45318.7 46858.5 46858.5 45318.7 53490.5 38978.4 62337.4 88349.1 6 77686.6 68271.7 37686.8 32588.7 43809.2 45305.8 45305.8 43809.2 32380.7 37686.8 6271.7 77686.6 7 75304.9 58423.9 36531.4 31388.6 42466.1 43916.8 43916.8 42466.1 31388. 36531.4 58423.9 75304.9 8 73248.2 56828.3 35533.7 30530.7 41306.3 42717.4 42717.4 41306.3 30538.7 35533.7 56828.3 73248.2 9 71554.9 55514.6 34712.2 29825.6 40351.4 41729.9 41729.9 40351.4 29825.6 34712.2 55514.6 71554.9 10 70256.5 54507.2 34082.4 29283.8 39619.2 40972.7 40972.7 39619.2 29283.8 34082.4 54587.2 76256.5 11 69377.3 53825.1 33655.8 28917.3 39123.4 48459.9 4459.9 39123.4 28917.3 33655.8 53825.1 69377.3 12 68933.5 53480.8 33448.6 28732.3 38873.2 46201.1 48201.1 38873.2 28732.3 33440.6 53488.8 68933.5 13 68933.5 53480.8 33440.6 28732.3 38873.2 40201.1 48201.1 38873.2 28732.3 33448.6 53480.8 68933.5 14 69377.3 53825.1 33655.8 28917.3 39123.4 48459.9 40459.9 39123.4 28917.3 33655.8 53825.1 69377.3 15 76256.5 54507.2 34882.4 29283.8 39619.2 40972.7 40972.7 39619.2 29283.8 34082.4 54567.2 76256.5 16 71554.9 55514.6 34712.2 29825.0 40351.4 41729.9 41729.9 40351.4 29825.8 34712.2 55514.6 71554.9 17 73248.2 56828.3 35533.7 30530.7 41306.3 42717.4 42717.4 41306.3 30530.7 35533.7 56828.3 73248.2 18 75304.9 58423.9 36531.4 31388.0 42466.1 43916.8 43916.8 42466.1 31388.6 36531.4 58423.9 75304.9 19 77686.6 68271.7 37686.8 32380.7 43809.2 45305.8 45305.8 43809.2 32380.7 37686.8 66271.7 77686.6 26 80349.1 62337.4 38978.4 33498.5 45318.7 46858.5 46858.5 45318.7 33498.5 38978.4 62337.4 80349.1 21 83242.6 64582.3 40382.1 34696.6 46942.4 48546.6 48546.6 46942.4 34696.6 40382.1 64582.3 83242.6 22 86313.4 66964.7 41871.8 35976.5 48674.1 50336.9 58336.9 48674.1 35976.5 41871.8 66964.7 86313.4 23 89504.2 69448.2 43419.7 37306.4 58473.4 52197.7 52197.7 58473.4 37306.4 43419.7 69448.2 89504.2 24 92755.5 71962.7 44997.8 38661.6 52306.9 54093.8 54093.8 52306.9 38661.6 44997.8 71962.7 92755.5 ANNUAL 1877054 1456278 910585. 782380. 1058514 1094674 1094674 1058514 782380. 910585. 1456278 1877054 4368000008 FUEL OIL CONSUMPTION DISPLACED (GALLONS) JAN FEB MAR APR MAY JUN JUL AUG SEP ocT NOV DEC ANNUAL 571 443 277 238 322 333 333 322 238 277 443 571 4,368 SAND POINT WASTE HEAT RECOVERY ESTIMATION PAGE 1 CONCEPT 1B WASTE HEAT UTILIZATION SIMULATION WORK SHEET. Location: SAND POINT Date: January 26, 1990 Heat rate: 2248 Btu/kwh produced System loss: 56,000 Btu/hour (FOR ALL SYSTEMS CONNECTED) Total Gen.: 3,868,480 kwh/year ANNUAL Local degree days: 981.6 978.8 929.5 915.8 757.6 573.4 395.8 373.1 498.9 716.8 9832.7 927.8 8,865 Assumed diurnal heat Power plant monthly generation: demand variation: women enna nnn ane Monthly JAN FEB MAR APR MAY JUN JUL AUG SEP ocT NOV DEC CHECKSUM Fraction:6.09769 6.08172 0.68032 6.08089 6.13102 0.08139 0.06510 0.07684 0.06476 0.07362 8.09081 6.08578 1 Winte Summer Hour Kwh: 377,926 316,160 318,726 312,968 506,880 314,880 251,840 297,288 256,568 284,800 312,640 331,846 3,868,480 Diurnal 8.0494 6.0494 1 variation 6.038 6.038 6.038 6.038 6.045 6.045 0.045 6.045 6.045 0.045 9.038 6.038 8.0477 6.0477 2 6.036 68.036 0.036 0.036 0.040 6.048 6.040 6.040 6.040 6.040 6.036 6.036 0.0460 6.0460 3 6.034 6.034 6.034 6.034 6.036 0.036 6.036 0.036 6.036 6.036 0.034 8.834 0.0443 6.0443 4 0.034 8.034 6.054 6.034 6.035 6.035 6.035 6.035 6.035 6.035 6.034 0.034 0.0428 8.0428 2 6.035 68.055 0.033 6.053 6.035 0.035 6.035 6.035 6.035 6.035 0.933 8.053 0.0414 6.0414 6 0.034 8.034 6.034 6.034 6.038 6.038 6.038 0.038 6.038 8.038 06.034 8.034 0.0401 6.0401 7 0.038 8.038 6.038 6.038 6.038 6.038 8.038 0.038 6.038 6.038 9.038 6.038 0.0390 6.0390 8 6.042 8.042 0.042 0.042 6.048 6.040 6.040 0.040 6.040 8.040 9.042 0.042 0.0381 6.0381 9 0.042 8.042 0.042 0.042 6.045 0.045 8.045 0.045 0.045 6.045 6.042 0.042 0.0374 6.0374 18 8.047 8.047 6.047 6.047 8.047 6.047 6.047 0.047 6.047 0.047 6.047 6.047 0.0370 8.0370 af] 6.048 0.048 0.048 0.048 0.040 6.040 0.040 0.040 6.040 6.049 0.048 8.048 0.0367 6.0367 12 0.047 8.047 6.047 6.047 6.048 6.048 6.048 0.048 6.048 6.048 0.047 6.047 0.0367 6.0367 13 0.045 08.045 6.045 6.045 6.056 6.050 0.050 0.050 6.050 0.050 0.045 6.045 8.0376 6.0370 14 6.047 6.047 6.047 6.047 6.052 6.052 6.052 8.052 6.052 0.052 6.047 6.047 6.0374 6.0374 15 6.048 6.048 0.048 6.048 6.058 6.050 6.058 8.050 6.050 0.050 6.048 6.048 8.0381 6.0381 16 0.048 8.048 6.048 6.048 6.055 0.050 8.050 0.050 0.050 6.050 6.048 6.048 2.0398 6.0390 17 8.049 8.049 6.049 6.049 6.045 0.045 6.045 6.045 6.045 6.045 0.049 6.049 8.0401 6.0401 18 6.046 6.046 6.046 6.046 6.047 0.047 6.047 6.047 6.047 6.047 6.046 6.046 0.0414 6.0414 19 6.045 8.043 0.043 6.043 6.050 0.050 0.050 8.050 6.050 8.050 6.043 6.043 0.0428 6.0428 28 6.038 8.038 6.038 6.038 6.045 6.045 0.045 0.045 6.045 0.045 6.038 0.038 8.0443 6.0443 21 8.038 68.038 6.038 6.038 6.041 6.041 6.041 6.041 6.041 6.041 6.038 6.038 0.0468 6.0460 22 6.041 8.041 0.041 6.041 6.041 6.041 6.041 0.041 6.041 6.041 9.041 6.041 8.0477 6.6477 23 8.045 8.045 6.045 6.045 6.041 6.041 6.041 0.041 6.041 6.041 0.045 6.045 2.0494 6.0494 24 6.045 8.040 0.040 0.040 6.043 6.043 6.043 6.043 6.043 6.043 6.040 6.048 Building use per month, gallons of fuel oil BUILDING 1A - SPE ADMIN. BUILDI 1A 571 443 277 238 322 333 333 322 238 277 443 571 4,368 BUILDING 1B - POST OFFICE 1B 321 288 256 258 128 86 38 27 aT) 149 242 321 2,108 BUILDING 1C - GAS STATION 1c 6 6 o 6 6 6 6 6 6 g 8 6 8 BUILDING 1D - STORE 1D 6 6 6 6 8 6 6 g 6 6 6 6 6 BUILDING 2 - SCHOOL 2 6 8 8 6 6 6 6 6 6 6 g 6 6 BUILDING 6 g 6 6 g 6 6 g 6 6 a a 6 SAND POINT WASTE HEAT RECOVERY ESTIMATION BUILDING 7 BUILDING 8 BUILDING 9 warnrawuerun = 16 12 13 14 15 16 17 18 19 21 22 23 24 we oaryranuweun = FUns ta 892 723 533 Heat available per hour JAN 1067488 951823. 896166. 896166. 868338. 896166. 1087488 1118794 1118794 1146622 1087488 1007480 1098965 1262279 1863137 FEB 834665. 788184. 741543, 741543. 718262. 741543, 834665. 927788. 927788. 1257936 1044192 1285764 1667472 1257936 1044192 1282279 997638. 1257936 1044192 1285764 1067472 1285764 1867472 1313593 1098753 1238187 1020911 951869. 834665. 834665. 904588. 997630. 881227. MAR 819443. 773683. 727923. 727923. 705843. 727923. 819443. 918964. 918964. 1825364 1848245 1625364 979684. 1825364 1048245 1848245 1871125 1802484 933844. 819443. 819443. 888084. 979684. 865204 3E+O7 «= 2E+87 «= 2E+07 PAGE 2 488 442 by month (BTU) APR 825711. 779621. 733531. 733531. 718486. 733531. 825711. 917892. 917892. 1033117 1056162 1033117 987827. 1033117 1056162 1056162 1879287 1610872 948937. 825711. 825711. 894847. 987627. 871861. MAY 1629682 1442979 1293681 1256357 1256357 1368338 1368338 1442979 1629682 1784251 1442979 1741575 1816224 1898873 1816224 1816224 1629682 1704251 1816224 1629682 1480304 1488304 1488304 1554953 419 maa aoa 371 349 JUN JUL AUG 993389. 877457. 784711. 761525. 761525. 831084. 831084. 877457. 993389. 1839762 877457. 1862948 1189321 1155694 1189321 1189321 993389. 1039762 1169321 993389. 900643. 908643. 980643. 947816. 784499. 691777. 617599. 599855. 599855. 654688. 654688. 691777. 784499. 821588. 691777. 840132. 877221. 914318. 877221. 877221. 784499. 821588. 877221. 784499. 718521. 718321. 716321. 747416. 935069. 825617. 738055. 716165. 716165. 781836. 781836. 825617. 935069. 978858. 825617. 1686741 1844522 1888382 1044522 1044522 935069. 978858. 1844522 935069. 847508. 847508. 847568. 891288. 248 SEP 788257. 688087. 614286. 595756. 595756. 651186. 651186. 688807. 786257. 817158. 688007. 835608. 872588. 989489. 872588. 872588. 786257. 817158. 872568. 786257. 766457. 706457. 706457. 743357. 426 ocT 893715. 788858. 704972. 684801. 684001. 746915. 746915. 788858. 893715. 935658. 788858. 956638. 998573. 1040516 998573. 998573. 893715. 935658. 998573. 893715. 809838. 889830. 809838. 851773 2E+07 «= 4E+07 «9 2E+07 «= 2E+07 «=. 2E+07 «=. 2E+87 «= 2E +87 Heat demand by hour by month (BTU) JAN 144988. 139828. 134836. 130039. 125519. 121359. 117639. 114426. 111781. 189752. 108379. 107686. 107686. 188379. FEB 117447, 113338. 189298. 105481. 181738. MAR APR MAY JUN JUL AUG SEP ocT 685 NOV 824816. 778773. 732738. 732738. 709769. 732738. 824816. 916982. 916982. 1032009 1055831 1032009 985966. 1032809 1055831 1055831 1678852 1068988 939923. 824816. 824816. 8938868. 985966. 878859. 2E+87 NOV 86582.6 79272.7 71806.2 68064.8 60266.7 56692.9 48286.1 69261.1 111274. 83547.7 76493.9 69283.4 65678.2 58154.2 54705.7 38873.9 66775.4 187373. 88569.3 73767.6 66813.5 63336.8 56081. 52755.5 37488.1 64394.9 183545. 7782.8 71142.6 64436.5 61883.5 5485.8 50878.6 36154.4 62103.9 99862.6 75081.8 68669.6 62196.6 58968.2 52205.8 49118.6 34897.6 59945.2 96390.7 98366.8 72516.6 66394.2 60135.7 57606.4 58475.9 47482.7 33741.3 57958.8 93196.7 95351.8 76293.3 64358.6 58292.6 55258.7 48928.4 46826.9 32786.8 56181.9 90339.5 92746.8 68373.5 62600.9 5670.6 53749.5 47592.1 44769.9 31813.5 54647.5 87872.2 98682.8 66792.9 61153.7 55389.2 5257.8 46491.9 43734.9 31078.1 53384.2 85840.8 88958.8 65581.0 60044.1 54384.2 51554.2 45648.3 42941.4 30514.2 52415.5 84283.2 87845.5 64760.2 59292.7 53703.6 50909.1 45077.0 42404.6 30132.3 51759.6 83228.4 87283.6 64346.8 58913.4 53360.1 50583.4 44788.7 42132.7 29939.6 51428.5 82696.1 87283.6 64346. 58913.4 53360.1 50583.4 44788.7 42132.7 29939.6 51428.5 82696.1 87845.5 64768.2 59292.7 53703.6 50909.1 45077.6 42404.6 36132.3 51759.6 83228.4 CONCEPT 1B 892 6,468 DEC 878541. 829676. 788799. 788799. 756364. 788799. 878541. 976282. 976282. 1098458 1122894 1098458 1849588 1898458 1122894 1122894 1147329 1874823 1608717 878541. 878541. 951846. 1849588 927411. ANNUAL 2E+87 8.41E+69 DEC 144908. 139828. 134836. 130039. 125519. 121359. 117639. 114426. 111781. 109752. 108379. 107686. 107686. 168379. SAND POINT WASTE HEAT RECOVERY ESTIMATION PAGE 3 CONCEPT 1B 15 109752. 88958.8 65581.0 6044.1 54384.2 51554.3 45648.3 42941.4 30514.2 52415.5 84283.2 189752. 16 111781. 98682.8 66792.9 61153.7 55389.2 52587.6 46491.9 43734.9 31678.1 53384.2 85848.8 111781. 17 114426. 92746.8 68373.5 62600.9 56700.6 53749.5 47592.1 44769.9 31813.5 54647.5 87872.2 114426. 18 117639. 95351.8 78293.3 64358.6 58292.8 55258.7 48928.4 46026.9 32786.8 56181.9 90339.5 117639. 19 121359. 98366.8 72516.6 66394.2 68135.7 57606.5 58475.9 47482.7 33741.3 57958.8 93196.7 121359. 26 125519. 181738. 75801.8 68669.6 62196.6 58968.2 52285.8 49118.8 34897.6 59945.2 96398.8 125519. 21 130039. 105401. 7762.8 71142.6 64436.5 61883.5 54085.8 50878.6 36154.4 62164.6 99862.6 130039. 22 134836. 189298. 8569.3 73767.0 66813.5 63336.8 56081.8 52755.5 37488.1 64394.9 183545. 134836. 23 139820. 113338. 83547.7 76493.9 69283.4 65678.2 58154.2 54705.7 38873.9 66775.4 167373. 139820. 24 144988. 117447. 86582.7 79272.7 71808.2 68064.6 66266.7 56692.9 48286.1 69281.1 111274. 144968. ANNUAL 2932281 2376725 1752136 1684287 1452991 1377383 1219592 1147271 815253. 1488394 2251888 2932281 646800000 Heat delivered by hour by month (BTU) JAN FEB MAR APR MAY JUN JUL AUG SEP ocr NOV DEC 144988. 117447. 86582.6 79272.7 71880.2 68064.8 60266.7 56692.9 48286.1 69201.1 111274. 144980. 139828. 113338. 83547.7 76493.9 69283.4 65678.2 58154.2 54785.7 38873.9 66775.4 187373. 139828. 134836. 189298. 80569.3 73767.6 66813.5 63336.8 56081.6 52755.5 37488.1 64394.9 103545. 134836. 130039. 105401. 77762.8 71142.6 64436.5 61883.5 54885.8 58878.6 36154.4 62103.9 99862.6 138039. 125519. 181738. 75001.8 68669.6 62196.6 5896.2 52205.8 49118.8 34897.6 59945.2 96398.7 125519. 121359. 98366.8 72516.6 66394.2 68135.7 57666.4 58475.9 47482.7 33741.3 57958.8 93196.7 121359. 117639. 95351.0 78293.3 64358.6 58292.0 55258.7 48928.4 46026.9 32706.8 56181.9 90339.5 117639. 114426. 92746.8 68373.5 62600.9 56760.6 53749.5 47592.1 44769.9 31813.5 54647.5 87872.2 114426. 111781. 96602.8 66792.9 61153.7 55389.2 52567.6 46491.9 43734.9 31078.1 53384.2 85840.8 111781. 189752. 88958.8 65581.0 60044.1 54384.2 51554.2 45648.3 42941.4 38514.2 52415.5 84283.2 109752. 108379. 87845.5 64768.2 59292.7 53703.6 58909.1 45877.6 42404.6 30132.3 51759.6 83228.4 108379. 187686. 87283.6 64346.6 58913.4 53360.1 50583.4 44788.7 42132.7 29939.6 51428.5 82696.1 107686. 187686. 87283.6 64346.8 58913.4 53368.1 50583.4 44788.7 42132.7 29939.6 51428.5 82696.1 187686. 188379. 87845.5 6476.2 59292.7 53703.6 50909.1 45077.6 42404.6 38132.3 51759.6 83228.4 168379. 109752. 88958.8 65581.6 60044.1 54384.2 51554.3 45648.5 42941.4 30514.2 52415.5 84283.2 109752. 111781. 98682.8 66792.9 61153.7 55389.2 52587.6 46491.9 43734.9 31078.1 53384.2 85840.8 111781. 114426. 92746.8 68373.5 62600.9 56700.6 53749.5 47592.1 44769.9 31813.5 54647.5 87872.2 114426. 117639. 95351.6 76293.3 64358.6 58292.8 55258.7 48928.4 46826.9 52786.8 56181.9 98339.5 117639. 121359. 98366.8 72516.6 66394.2 6135.7 57006.5 58475.9 47482.7 33741.3 57958.8 93196.7 121359. 125519. 181738. 75081.8 68669.6 62196.6 58960.2 52285.8 49118.8 34897.6 59945.2 96398.8 125519. 130039. 105401. 77762.8 71142.6 64436.5 61883.5 54085.8 58878.6 36154.4 62184.6 99862.8 130039. 134836. 189298. 80569.3 73767.6 66813.5 63336.8 56681.6 52755.5 37488.1 64394.9 103545. 134836. 139828. 113330. 83547.7 76493.9 69283.4 65678.2 58154.2 54785.7 38873.9 66775.4 167373. 139820. 144988. 117447, 86582.7 79272.7 71888.2 68664.0 60266.7 56692.9 4286.1 69281.1 111274. 144980. ANNUAL 2932281 2376725 1752136 1604287 1452991 1377383 1219592 1147271 815253. 1408394 2251888 2932281 6468000008 Ooryrnuerwun = PRSsestnaanrustase Raps FUEL OIL CONSUMPTION DISPLACED (GALLONS) JAN FEB MAR APR MAY JUN JUL AUG SEP ocT NOV DEC ANNUAL 892 723 533 488 442 419 371 349 248 426 685 892 6,468 SAND POINT WASTE HEAT RECOVERY WASTE HEAT UTILIZATION SIMULATI ESTIMATION PAGE 1 CONCEPT 1C ON WORK SHEET. Location: SAND POINT Date:January 26, 1998 Heat rate: 2248 Btu/kwh produced System loss: 56,0008 Btu/hour (FOR ALL SYSTEMS CONNECTED) Total Gen.: 3,868,486 kwh/year | au Local degree days: 981.6 978.8 929.5 915.8 757.6 573.4 395.8 373.1 498.9 716.8 832.7 927.6 8,865 . ~~ Assumed diurnal heat demand variation: Winte Summer Hour 6.8494 6.8494 1 8.0477 6.0477 2 0.0468 0.0468 3 6.0443 6.0443 4 6.0428 6.0428 5 - 8.0414 6.0414 6 6.8401 6.8401 7 0.0398 6.0398 8 3.0381 6.0381 9 8.0374 6.0374 168 6.0376 6.0370 11 8.6367 6.0367 12 6.0367 6.6367 13 0.0376 8.0378 14 0.0374 6.0374 15 6.0381 6.0381 16 2.0398 6.0398 17 0.0401 6.0401 18 8.0414 6.0414 19 8.0428 6.8428 26 3.0443 8.0445 21 3.0468 8.0460 22 6.0477 6.0477 23 5.0494 6.0494 24 BUILDING 1A - SPE ADMIN. BUILDI BUILDING 1B - POST OFFICE BUILDING 1C - GAS STATION BUILDING 1D - STORE BUILDING 2 - SCHOOL BUILDING 6 Power plant monthly generation: Monthly JAN FEB MAR APR MAY JUN JUL AUG SEP ocT NOV DEC CHECKSUM Fraction:6.69769 6.68172 6.68032 6.68089 0.13162 6.08139 6.06510 0.07684 0.66476 6.07362 6.68081 6.08578 1 Kwh: 377,928 316,160 316,728 312,968 586,888 314,880 251,840 297,280 250,560 284,800 312,648 331,840 3,868,480 Diurnal variation 6.038 8.038 8.038 6.038 6.045 6.045 6.045 6.045 08.045 6.045 6.038 6.038 0.036 6.036 0.036 0.036 6.040 0.040 0.040 6.040 6.040 0.040 6.036 0.056 6.034 8.034 6.034 6.034 6.056 6.036 6.036 6.036 6.036 8.036 6.034 08.034 6.034 6.034 6.034 6.034 6.635 6.035 6.035 6.035 6.035 6.035 6.034 6.034 0.053 6.033 6.053 6.055 68.855 8.035 8.035 8.035 6.055 6.055 6.053 8.053 0.034 6.034 6.034 6.034 6.038 6.038 8.038 6.038 6.038 6.038 6.034 6.034 6.038 6.038 8.038 8.038 6.038 6.038 6.038 6.038 6.038 6.038 6.038 6.038 6.042 6.042 0.042 8.042 6.046 6.040 6.040 6.040 6.040 6.046 6.042 6.042 0.042 6.042 6.042 6.042 6.045 6.045 6.045 6.045 6.045 6.045 6.042 6.042 6.047 6.047 6.047 6.047 6.047 6.047 6.047 6.047 6.047 6.047 6.047 6.647 6.048 6.048 6.048 6.048 06.040 0.040 0.040 6.040 6.040 6.040 6.048 6.048 6.047 6.047 6.047 6.047 6.048 8.048 6.048 6.048 6.048 6.048 6.047 08.047 6.045 6.045 6.045 6.045 6.050 6.050 6.050 0.050 6.050 6.056 6.045 6.045 6.047 6.047 6.047 6.047 6.052 6.052 6.052 6.052 6.052 6.052 6.047 6.047 6.048 6.048 6.048 6.048 6.056 6.050 6.050 6.050 6.050 6.056 6.048 6.048 6.048 8.048 6.048 6.048 6.050 6.056 6.050 6.050 6.050 6.050 6.048 0.048 6.049 6.049 6.049 6.049 6.045 6.045 6.045 0.045 6.045 6.045 6.049 6.049 0.046 6.046 6.046 6.046 6.047 6.047 6.047 6.047 6.047 6.047 6.046 06.046 6.043 6.043 6.043 6.043 6.050 8.050 8.050 6.050 6.050 6.056 6.043 6.043 6.038 6.038 6.038 6.038 6.045 6.045 6.045 6.045 6.045 6.045 6.038 6.038 6.038 6.038 6.038 6.038 6.041 6.041 6.041 6.041 6.041 6.041 6.038 6.038 6.041 6.041 6.041 6.041 6.641 6.041 6.041 6.041 6.041 6.041 6.041 6.641 6.045 6.045 6.045 6.045 6.041 6.041 6.041 6.041 6.041 6.041 6.045 6.045 0.046 6.046 6.040 6.040 6.043 6.045 6.043 6.0435 6.043 6.043 6.040 06.048 Building use per month, gallons of fuel oil 1A 571 443 277 238 322 333 333 322 238 277 443 571 4,368 1B 321 280 256 258 126 86 38 27 16 149 242 321 2,108 1c 316 313 308 295 244 185 128 126 158 231 268 299 2,857 1D 6 6 8 6 6 8 6 6 6 6 6 6 6 2 6 6 6 6 6 6 6 6 6 6 6 8 6 8 8 8 6 6 6 6 6 6 8 6 6 SAND POINT WASTE HEAT RECOVERY ESTIMATION BUILDING 7 BUILDING 8 BUILDING 9 TOTAL war aurun = PRBERSSISRGFUSIZS wor anurun = EUs lta PAGE 2 1288.38 1035.82 832.512 783.097 686.121 Heat available per hour by month (BTU) JAN 1007488 951823. 896166. 896166. 868338. 896166. 1087488 1118794 1118794 1146622 1087488 108748 1898965 1262279 1863137 3E+O7 FEB MAR APR 834665. 788104. 741543. 741543. 718262. 741543. 834665. 927788. 927788. 1257936 1044192 1285764 1867472 1257936 1844192 1282279 997638. 1257936 1044192 1285764 1867472 1285764 1067472 1313593 1090753 1238187 1626911 951669. 834665. 834665. 984588. 997638. 881227. 2E+87 819443. 773683. 727923. 727923. 705043. 727923. 819443. 910964. 910964. 1625364 1048245 1825364 979604. 1625364 1048245 1648245 1071125 1882484 933844. 819443. 819443. 888084. 979684. 865204. 2E+87 825711. 779621. 733531. 733531. 710486. 733531. 825711. 917892. 917892. 1633117 1056162 1033117 987827. 1833117 1056162 1056162 1879287 1618872 940937. 825711. 825711. 894847. 987627. 871881. 2E+87 MAY 1629682 1442979 1293681 1256357 1256357 1368338 1368330 1442979 1629682 1784251 1442979 1741575 1816224 1898873 1816224 1816224 1629682 1784251 1816224 1629602 1480304 1488304 1488304 1554953 4E+87 Heat demand by hour by month (BTU) JAN 196281. 189481. 182649. 176156. 176827. 164393. 159353. 155001. 151418. 148678. 146816. 145871. 145871. 146818. FEB 168262. 162364. 156576. 151006. 145757. 148927. 136606. 132875. 129883. 127448, 125853. 125048. 125848. 125853. MAR 135236. 130496. 125844, 121367. 117148. 113266. 169793. 186795. 104326. 162433. 161151. 100504. 100504. 101151. APR 127269. 122758. 118374. 114163. 116194. 186543. 103276. 108456. 98134.8 96353.3 95147.5 MAY 111456. 187549. 103715. 168825 683.766 498.538 469.223 406.182 656.974 953.328 JUN 993389. 877457. 784711. 761525. 761525. 831084. 831884. 877457. 993389. 1039762 877457. 1862948 1169321 1155694 1169321 1169321 993389. 1839762 1189321 993389. 900643. 900643. 900643. 947016. 2E+87 JUN JUL 784499. 691777. 617599. 5990855. 599855. 654688. 654688. 691777. 784499, 821588. 691777. 848132. 877221. 914316. 877221. 877221. 784499. 821588. 877221. 784499. 710321. 716321. 718321. 747416. 2E+87 JUL AUG 935069. 825617. 738855. 716165. 716165. 781836. 781836. 825617. 935069. 978858. 825617. 1600741 1044522 1688302 1844522 1644522 935869. 978858. 1844522 935069. 847508. 847588. 847588. 891288. 2E+87 AUG SEP 780257. 688007. 614266. 595756. 595756. 651166. 651186. 688007. 786257. 817158. 688087. 835608. 872508. 909489. 872508. 872588. 788257. 817158. 872588. 786257. 706457. 786457. 786457. 743357. 2E+07 SEP ocT 893715. 788858. 784972. 684001. 684001. 746915. 746915. 788858. 893715. 935658. 788858. 956630. 998573. 1848516 998573. 998573. 893715. 935658. 998573. 893715. 809838. 809838. 889838. 851773. 2E+87 ocT 98078.2 80984.6 76222.6 65981.9 186721. 94640.3 78145.8 73550.8 63669.6 162980. 91266.4 75360.8 78928.7 61399.3 99389.4 - 88819.4 72678.9 6845.3 59214.9 95776.3 96548.5 84959.8 70152.5 66027.5 57156.5 92447.8 93349.3 82144.6 67827.9 63839.6 55262.6 89383.7 98487.3 79626.2 65748.4 61882.4 53568.3 86643.3 88016.8 77451.5 63952.8 60192.3 52105.3 84277.68 85981.3 75661. 62474.4 58800.8 50900.8 82328.7 84421.2 74288.1 61348.8 57733.9 49977.2 80834.9 83364.6 73358.4 60573.1 57811.3 49351.7 79823.3 94538.9 82831.4 72889.2 60185.6 56646.7 49836.8 79312.7 94538.9 82831.4 72889.2 60185.6 56646.7 49036.8 79312.7 95147.5 83364.7 73358.4 60573.1 57011.3 49351.7 79823.3 NOV 824816. 778773. 732738. 732738. 709789. 732738. 824816. 916982. 916982. 1832089 1855831 1032009 985966. 1032089 10550831 1055831 1878852 1668988 939923. 824816. 824816. 893888. 985966. 878859. 2E+87 NOV 154861. 149432. 144105. 138978. 134147. 129762. 125726. 122292. 119465. 117297. 115829. 115688. 115088. 115829. CONCEPT 1C 1198.76 9,325 DEC 878541. 829678. 786799. 786799. 756364. 788799. 878541. 976282. 976282. 1898458 1122894 1698458 1849588 1898458 1122894 1122894 1147329 1874623 1666717 878541. 878541. 951846. 1849588 927411. ANNUAL 2E+87 8.41E+89 DEC 193423. 186643. 179989. 173586. 167552. 162000. 157833. 152744. 149213. 146586. 144672. 143747. 143747, 144672. SAND POINT WASTE HEAT RECOVERY ESTIMATION 15 16 17 18 19 21 23 24 oryranurwun = RPRBRRSSVIRGAFAS FSO 148676. 151418. 155001. 159353. 164393. 176627. 176158. 182649. 189481. 196281. 127448. 129883. 132875. 136686. 146927. 145757 151066. 156576. 162364. 168262. 182433. 184326. 186795. 189793. 113266. 117148. 121367. 125844. 138496. 135236. PAGE 3 96353.3 98134.8 180456. 103276. 186543. 118194. 114163. 118374. 122758. 127289. 84421.2 74288.1 61348.8 57733.9 49977.2 88834.9 85981.3 75661.8 62474.4 58800.8 58968.8 82328.8 8816.6 77451.5 63952.8 60192.3 52105.3 84277.6 98487.3 79626.2 65748.5 61882.4 53568.3 86643.3 93349.3 82144.6 67828.6 63839.6 55262.6 89383.7 96548.5 84959.8 70152.5 66027.5 57156.5 92447.6 108625. 88019.5 72678.9 68405.3 59214.9 95776.3 103715. 91266.4 75360.6 76928.7 61399.3 99309.4 187549. 94648.3 78145.8 73558.8 63669.6 162988. 111456. 98878.2 88984.6 76222.6 65981.9 186721. 117297. 119465. 122292. 125726. 129782. 134147. 138978. 144185. 149432. 154861. 146506. 149213. 152744. 157033. 162006. 167552. 173586. 179989. 186643. 193423. CONCEPT 1C ANNUAL 3972059 3405863 2736726 2574285 2255495 1984767 1638858 1542484 1335248 2159678 3133860 3914223 932456459 Heat delivered by hour by month (BTU) JAN 196281. 189481. 182649. 176156. 176827. 164393. 159353. 155081. 151418. 148676. 146810. 145871. 145871. 146818. 148676. 151418. 155881. 159353. 164393. 176827. 176158. 182649. 189481. 196281. 3972059 3405063 FEB 168262. 162364. 156576. 151086 145757. 140927. 136606. 132875. 129883. 127448. 125853. 125848. 125048. 125853. 127448. 129883. 132875. 136606. 146927. 145757. 151086. 156576. 162364. 168262. MAR 135236. 130496. 125844. 121367. 117148. 113266. 169793. 106795. 184326. 182433. 161151. 100504. 180584. 101151. 162433. 104326. 186795. 189793. 113266. 117148. 121367. 125844. 130496. 135236. 2736726 APR 127289. 122758. 118374. 114163. 116194. 186543. 103276. 108456. 98134.6 96353.3 95147.5 94538.9 94538.9 95147.5 96353.3 98134.8 188456. 103276. 186543. 118194. 114163. 118374. 122758. 127289. MAY JUN JUL AUG SEP ocT 111456. 98878.2 88984.6 76222.6 65981.9 186721. 187549. 94648.3 78145.8 73550.8 63669.6 162980. 103715. 91266.4 75360.0 76928.7 61399.3 99309.4 106825. 88819.4 72678.9 68405.3 59214.9 95776.3 96548.5 84959.8 78152.5 6627.5 57156.5 92447.68 93349.3 82144.6 67827.9 63839.6 55262.6 89383.7 98487.3 79626.2 65748.4 61882.4 53568.3 86643.3 88016.8 77451.5 63952.8 68192.3 52185.3 84277.8 85981.3 75661.8 62474.4 58800.8 50908.8 82328.7 84421.2 74288.1 61348.8 57733.9 49977.2 88834.9 83364.6 73358.4 60573.1 57811.3 49351.7 79823.3 82831.4 72889.2 60185.6 56646.7 49836.6 79312.7 82831.4 72889.2 60185.6 56646.7 49036.6 79312.7 83364.7 73358.4 60573.1 57611.3 49351.7 79823.3 84421.2 74288.1 6134.8 57733.9 49977.2 86834.9 85981.3 75661.6 62474.4 58800.8 50908.8 82328.8 88016.8 77451.5 63952.8 6192.3 52105.3 84277. 98487.3 79626.2 65748.5 61882.4 53568.3 86643.3 93349.3 82144.6 67828.8 63839.6 55262.6 89383.7 96548.5 84959.8 78152.5 66027.5 57156.5 92447.8 100625. 88819.5 72678.9 68405.3 59214.9 95776.3 103715. 91266.4 75360.6 78928.7 61399.3 99389.4 187549. 94648.3 78145.8 73558.8 63669.8 182980. 111456. 98878.2 88984.6 76222.6 65981.9 186721. NOV 154861. 149452. 144105. 138978. 134147, 129782. 125726. 122292. 119465. 117297. 115829. 115888. 115888. 115829. 117297. 119465. 122292. 125726. 129762. 134147. 138978. 144165. 149432. 154861. DEC 193423. 186643. 179989. 173586. 167552. 162008. 157833. 152744. 149213. 146506. 144672. 143747. 143747. 144672. 146586. 149213. 152744. 157833. 162000. 167552. 173586. 179989. 186643. 193423. ANNUAL 2574285 2255493 1984767 1638858 1542484 1335248 2159678 3133860 3914223 932456459 FUEL OIL CONSUMPTION DISPLACED (GALLONS) JAN 1288 FEB 1836 MAR 833 APR 783 MAY JUN JUL AUG SEP ocT 686 604 499 469 406 657 NOV 953 DEC 1191 ANNUAL 9,325 POINT WASTE HEAT RECOVERY ESTIMATION PAGE 1 WASTE HEAT UTILIZATION SIMULATION WORK SHEET. Location: SAND POINT Date: January 26, 1998 Heat rate: 2248 Btu/kwh produced System loss: 58,008 Btu/hour (FOR ALL SYSTEMS CONNECTED) Total Gen.: 3,868,488 kwh/year Local degree days: 981.6 978.8 929.5 915.8 757.6 573.4 395.8 Assumed diurnal heat demand variation: _——— Monthly JAN FEB MAR APR MAY JUN JUL Power plant monthly generation: 373.1 AUG 498.9 SEP 716.8 ocT 832.7 NOV 927.8 DEC Fraction:6.69769 6.68172 6.68032 6.68089 6.13102 6.08139 6.06516 8.07684 8.06476 0.07362 6.08081 6.68578 / Winte Summer Hour Kwh: 377,928 316,168 310,728 312,968 586,880 314,880 251,848 297,280 250,560 284,800 312,640 331,848 Diurnal 0.0494 6.0494 1 variation 6.038 6.038 6.038 6.038 6.045 6.045 6.045 6.045 6.045 6.045 6.038 6.038 (8.8477 6.6477 2 6.036 6.0356 6.036 6.036 6.040 6.046 6.040 6.040 6.046 6.046 6.036 6.036 0.04668 6.0460 3 0.034 6.034 6.054 6.034 6.036 6.036 6.036 6.036 6.036 6.036 6.034 6.034 0.0443 6.0443 4 6.034 6.034 6.034 6.034 6.035 6.035 6.035 6.035 6.035 06.035 6.034 6.034 0.0428 6.0428 5 6.033 6.033 6.033 6.033 6.055 6.035 6.035 6.035 6.035 6.035 6.033 6.033 0.0414 6.0414 6 0.034 6.034 6.034 8.034 6.038 6.038 6.038 6.038 6.038 6.038 6.034 6.034 - 6.0461 6.0401 7 6.038 6.038 6.038 6.038 6.038 6.038 6.038 6.038 6.038 6.038 6.038 6.038 0.0398 6.0398 8 6.042 6.042 6.042 6.042 6.040 6.046 6.040 6.040 6.040 6.046 6.042 6.042 0.0381 6.0381 9 6.042 6.042 6.042 6.042 6.045 6.045 6.045 6.045 6.045 6.045 6.042 6.042 8.0374 6.0374 18 6.047 6.047 6.047 6.047 6.047 6.047 6.047 6.047 6.047 6.047 6.047 6.047 0.0376 8.0376 11 0.048 6.048 6.048 6.048 6.040 0.040 0.040 6.040 6.040 6.046 06.048 06.048 0.0367 6.0367 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 0.0367 6.0367 13 6.045 6.045 6.045 6.045 6.056 6.056 0.050 6.050 6.050 6.056 6.045 6.045 6.0376 6.0376 14 6.047 6.047 6.047 6.047 6.052 6.052 6.052 6.052 6.052 6.052 6.047 6.647 0.0374 8.8374 15 6.048 6.048 6.048 6.048 6.050 6.050 6.050 6.050 6.050 6.050 6.048 06.048 0.0381 6.0381 16 0.048 6.048 6.048 6.048 6.056 06.056 06.050 6.050 6.050 6.050 6.048 06.048 6.0398 6.0398 17 6.049 6.049 8.049 6.049 6.045 0.045 6.045 6.045 6.045 6.045 6.049 6.049 0.0401 6.0461 18 6.046 6.046 6.046 6.046 6.047 06.047 6.047 6.047 6.047 6.047 6.046 6.046 8.0414 6.0414 19 0.043 6.043 6.043 6.043 0.050 0.050 6.050 6.056 6.056 6.050 0.043 6.043 6.0428 6.0428 26 6.038 6.038 6.038 6.038 6.045 6.045 6.045 6.045 6.045 6.045 6.038 6.038 8.0443 6.0443 21 8.038 6.038 6.038 6.038 6.041 06.041 6.041 6.041 6.041 6.041 6.038 6.038 0.0468 0.0460 22 0.041 6.041 6.041 6.041 6.041 6.041 6.041 06.041 6.041 6.041 6.041 6.041 8.0477 6.0477 23 0.045 6.045 6.045 6.045 6.041 6.041 0.041 6.041 6.041 6.041 6.045 6.045 0.0494 6.0494 24 6.040 6.046 0.046 6.046 6.045 6.045 6.045 6.043 6.043 6.043 6.040 6.048 : Building use per month, gallons of fuel oil BUILDING 1A - SPE ADMIN. BUILDI 1A 571 443 277 238 322 333 333 322 238 277 443 571 BUILDING 1B - POST OFFICE 1B 321 288 256 258 126 86 38 27 18 149 242 321 BUILDING 1C - GAS STATION 1c 316 313 308 295 244 185 128 128 158 231 268 299 jomone 1D - STORE 1D 547 541 518 511 423 326 221 268 274 406 464 517 BUILDING 2 - SCHOOL 2 6 6 6 6 6 6 6 6 6 6 6 8 BUILDING 6 g g 6 6 6 6 6 g 8 6 8 CONCEPT 1D ANNUAL, 8,865 CHECKSUM 1 3,868,488 4,368 2,108 2,857 4,944 6 6 | POINT WASTE HEAT RECOVERY ESTIMATION PAGE 2 CONCEPT 1D 4 BUILDING 7 6 6 6 8 6 6 6 6 g 6 6 6 BUILDING 8 6 8 o 6 6 6 6 6 6 6 6 6 BUILDING 9 6 6 6 6 6 6 6 6 6 6 6 6 6 6 8 6 8 8 6 6 6 6 6 6 TOTAL 1755.74 1577.24 1356.89 1293.84 1188.63 923.554 719.278 677.303 679.959 1856.73 1417.72 1787.69 14,269 Heat available per hour by month (BTU) JAN FEB MAR APR MAY JUN JUL AUG SEP ocT NOV DEC 1087488 834665. 819443. 825711. 1629682 993389. 784499. 935069. 780257. 893715. 824816. 878541. 951823. 788104. 773683. 779621. 1442979 877457. 691777. 825617. 688807. 788858. 778773. 829678. 896166. 741543. 727923. 733531. 1293681 784711. 617599. 738055. 614206. 704972. 732730. 780799. 896166. 741543. 727923. 733531. 1256357 761525. 599855. 716165. 595756. 684001. 732730. 788799. 868338. 718262. 705043. 718486. 1256357 761525. 599055. 716165. 595756. 684001. 709789. 756364. 896166. 741543. 727923. 733531. 1368330 831084. 654688. 781836. 651186. 746915. 732730. 786799. 1087486 834665. 819443. 825711. 1368330 831084. 654688. 781836. 651106. 746915. 824816. 878541. 1118794 927788. 918964. 917892. 1442979 877457. 691777. 825617. 688007. 788858. 916982. 976282. 1118794 927788. 918964. 917892. 1629682 993389. 784499. 935869. 788257. 893715. 916982. 976282. 1257936 1844192 1825364 1833117 1784251 1039762 821588. 978850. 817158. 935658. 1632609 1698458 1285764 1867472 1848245 1856162 1442979 877457. 691777. 825617. 688007. 788858. 1055031 1122894 1257936 1844192 1825364 1033117 1741575 1662948 848132. 1600741 835688. 956630. 1032009 198458 1262279 997638. 979664. 987627. 1816224 1189321 877221. 1644522 872588. 998573. 985966. 1249588 1257936 1044192 1825364 1033117 1898873 1155694 914318. 1888362 909409. 1040516 1032009 1698458 1285764 10867472 1848245 1056162 1816224 1189321 877221. 1044522 872508. 998573. 1855831 1122894 1285764 1867472 1048245 1856162 1816224 1189321 877221. 1044522 872588. 998573. 1055031 1122894 1313593 1898753 1871125 1879287 1629662 993389. 784499. 935869. 788257. 893715. 1678052 1147329 1236167 1628911 1662484 1610672 1764251 1039762 821588. 978858. 817158. 935658. 1008988 1074023 1146622 951869. 933844. 948937. 1816224 1189321 877221. 1844522 872588. 998573. 939923. 1000717 1087480 834665. 819443. 825711. 1629682 993389. 784499. 935069. 788257. 893715. 824816. 878541. 1087488 834665. 819443. 825711. 1488384 900643. 710321. 847588. 706457. 889830. 824816. 878541. 1898965 904588. 888084. 894847. 1480304 900643. 710321. 847508. 706457. 809830. 893880. 951846. 1282279 997638. 979604. 987627. 1480304 900643. 710321. 847508. 706457. 889830. 985966. 1049588 1863137 881227. 865204. 871881. 1554953 947016. 747418. 891288. 743357. 851773. 876859. 927411. ANNUAL 3E+O7 «= 2E+87 = 2E+07 «= 2E+07 «0 4E+07 «= 2E+07 «= 2E+O7 «= 2E+O7 «= 2E+07 «= 2E+07 «= 2E+07 «= 2E+87 «8.4 1E+09 wnanryrnuerun = , ) RPROBLRSeGTRBFUS ZS Heat demand by hour by month (BTU) JAN FEB MAR APR MAY JUN JUL AUG SEP ocT NOV DEC 285218. 256213. 219445. 210177. 180091. 150625. 116842. 116623. 118455. 171668. 230300. 277405. 275212. 247232. 211753. 202869. 173779. 144767. 112746. 166167. 186583. 165643. 222227. 267681. 265401. 238418. 204264. 195579. 167583. 139606. 188727. 182382. 182784. 159738. 214385. 258139. 255959. 229936. 196939. 188621. 161621. 134639. 104859. 98748.0 99127.2 154055. 286681. 248955. 247862. 221943. 198893. 182865. 156003. 129959. 101214. 95307.7 95681.5 148708. 199496. 240381. 238875. 214589. 185794. 176832. 158834. 125652. 97860.4 92149.6 92511.6 143772. 192886. 232338. 231551. 288810. 178159. 178635. 146209. 121806. 94868.1 89324.4 89674.8 139365. 186972. 225215. 225227. 262329. 173294. 165975. 142216. 118474. 92269.4 86884.9 87225.6 135558. 181866. 219064. 220621. 197652. 169288. 162138. 138929. 115735. 96136.4 84876.3 85209.2 132425. 177661. 214000. 18 216828. 194865. 166216. 159196. 136408. 113635. 88500.8 83336.2 83663.1 130022. 174438. 218117. 11 213325. 191636. 164136. 157283. 134781. 112213. 87393.3 82293.3 82616. 128395. 172255. 207487. i 12 211968. 198411. 163886. 156198. 133839. 111495. 86834.3 81766.9 82087.6 127573. 171153. 206160. 13 211968. 198411. 163886. 156198. 133839. 111495. 86834.3 81766.9 82087.6 127573. 171153. 206160. 14 213325. 191636. 164136. 157283. 134761. 112213. 87393.3 82293.3 82616.6 128395. 172255. 267487. wor nurwn = ‘SAND POINT WASTE HEAT RECOVERY ESTIMATION PAGE 3 CONCEPT 1D a 15 216828. 194865. 166216. 159196. 136408. 113635. 88500.8 83336.3 83663.1 130622. 174438. 216117. 16 2200621. 197652. 169288. 162138. 138929. 115735. 98136.4 84876.5 85209.2 132425. 177661. 214000. 17 225227. 262329. 173294. 165975. 142216. 118474. 92269.4 86884.9 87225.6 135558. 181866. 219864. 18 231551. 208818. 178159. 178655. 146218. 121888. 94868.1 89324.4 89674.8 139365. 186972. 225215. 19 238875. 214589. 185794. 176852. 158834. 125652. 97868.4 92149.6 92511.6 143772. 192886. 232338. 28 247062. 221943. 1908093. 182065. 156003. 129959. 181214. 95307.7 95681.5 148780. 199496. 240301. 21 255959. 229936. 196939. 188621. 161621. 134639. 184859. 98740.6 99127.2 154855. 286681. 248955. 22 265481. 238418. 204204. 195579. 167583. 139686. 188727. 162382. 162784. 159738. 214385. 258139. 23 275212. 247232. 211753. 262818. 173779. 144767. 112746. 186167. 166583. 165643. 222227. 267681. 24 285210. 256213. 219445. 218177. 180891. 150025. 116842. 110623. 118455. 171668. 230300. 277405. ANNUAL 5771675 5184879 4440825 4253267 3644438 3036010 2364498 2226587 2235239 3473823 4668491 5613738 1.43E+09 Heat delivered by hour by month (BTU) JAN FEB MAR APR MAY JUN JUL AUG SEP ocT NOV DEC 1 285218. 256213. 219445. 218177. 188891. 158625. 116842. 118823. 118455. 171668. 230300. 277485. 2 275212. 247232. 211753. 262889. 173779. 144767. 112746. 186167. 186583. 165643. 222227. 267681. ' 3 265401. 238418. 204284. 195579. 167583. 139606. 108727. 162382. 182784. 159738. 214305. 258139. 4 255959. 229936. 196939. 188621. 161621. 134639. 184859. 98748.8 99127.2 154055. 286681. 248955. 5 247062. 221943. 198093. 182065. 156883. 129959. 181214. 95307.7 95681.5 148788. 199496. 240301. 6 238875. 214589. 183794. 176832. 150834. 125652. 97860.4 92149.6 92511.6 143772. 192886. 232338. 7 231551. 208018. 178159. 178635. 146209. 121886. 94868.1 89324.4 89674.8 139365. 186972. 225215. 8 225227. 202329. 173294. 165975. 142216. 118474. 92269.4 86884.9 87225.6 135558. 181866. 219864. 9 220821. 197652. 169288. 162138. 138929. 115735. 98136.4 84876.3 85209.2 132425. 177661. 214888. 1 216828. 194865. 166216. 159196. 136408. 113635. 88508.8 83336.2 83663.1 130022. 174438. 216117. 11 213325. 191636. 164136. 157203. 134701. 112213. 87393.3 82293.3 82616.8 128395. 172255. 207487. 12 211968. 198411. 163886. 156198. 133839. 111495. 86834.3 81766.9 82887.6 127573. 171153. 266168. | 13 211968. 198411. 163886. 156198. 133839. 111495. 86834.3 81766.9 82887.6 127573. 171153. 266168. 14 213325. 191636. 164136. 157283. 134781. 112213. 87393.3 82293.3 82616.8 128395. 172255. 207487. 15 216828. 194865. 166216. 159196. 136408. 113635. 88500.8 83336.3 83663.1 130022. 174438. 210117. ( 16 220621. 197652. 169288. 162138. 138929. 115735. 96136.4 84876.3 85209.2 132425. 177661. 214008. 17 225227. 202329. 173294. 165975. 142216. 118474. 92269.4 86884.9 87225.6 135558. 181866. 219064. 18 231551. 208010. 178159. 176635. 146218. 121808. 94868.1 89324.4 89674.8 139365. 186972. 225215. 19 238875. 214589. 183794. 176832. 158834. 125652. 97868.4 92149.6 92511. 143772. 192886. 232338. wy 28 247862. 221943. 198093. 182865. 156883. 129959. 101214. 95387.7 95681.5 148788. 199496. 240301. a 21 255959. 229936. 196939. 188621. 161621. 134639. 104859. 9874.6 99127.2 154055. 206681. 248955. 22 265481. 238418. 204284. 195579. 167583. 139686. 188727. 182382. 182784. 159738. 214385. 258139. 23 275212. 247232. 211753. 202818. 173779. 144767. 112746. 106167. 186583. 165643. 222227. 267681. 24 285218. 256213. 219445. 216177. 180091. 158825. 116842. 118023. 116455. 171668. 230380. 277405. ANNUAL A 5771675 5184879 4440825 4253267 3644438 3036010 2364498 2226587 2235239 3473823 4660491 5613738 1.43E+09 =) = FUEL OIL CONSUMPTION DISPLACED (GALLONS) JAN FEB MAR APR MAY JUN JUL AUG SEP oct NOV DEC ANNUAL | 1756 1577 1351 1294 1169 924 n9 677 680 1057 1418 1768 14,269 SAND POINT WASTE HEAT RECOVERY ESTIMATION PAGE 1 CONCEPT 2 Location: SAND POINT Date:January 26, 1998 _r Heat rate: 2248 Btu/kwh produced System loss: 56,000 Btu/hour (FOR ALL SYSTEMS CONNECTED) Total Gen.: 3,868,480 kwh/year ANNUAL Local degree days: 981.6 978.8 929.5 915.8 757.6 573.4 395.8 373.1 498.9 716.8 832.7 927.6 8,865 Assumed diurnal heat Power plant monthly generation: demand variation: Seaecenanana= Monthly JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC CHECKSUM Fraction:6.09769 6.68172 6.68032 6.08089 8.13102 6.08139 6.06516 0.07684 6.66476 6.07362 8.68081 0.68578 it Winte Summer Hour Kwh: 377,928 316,168 318,726 312,968 506,880 314,888 251,848 297,280 256,560 284,800 312,648 331,840 3,868,480 . Diurnal 8.0494 6.0494 1 variation 6.038 6.058 6.038 6.038 6.045 6.045 6.045 6.045 6.045 6.045 6.038 6.038 ‘8.0477 6.6477 2 6.036 6.036 6.036 6.036 6.040 6.040 6.040 0.040 6.040 6.046 6.036 0.036 " 6.0468 6.0468 3 6.034 6.034 6.034 6.034 6.036 6.036 6.036 6.036 6.036 6.036 6.034 6.034 0.0443 6.0443 4 6.034 6.034 6.034 6.034 6.035 6.035 6.055 6.035 6.035 6.035 6.034 6.034 6.0428 6.0428 5 6.033 6.033 6.033 6.033 6.035 6.035 6.035 6.035 6.035 6.055 6.033 6.033 ~~ 6.0414 6.0414 6 6.034 6.034 6.034 6.034 6.038 6.038 6.038 6.038 6.038 6.038 6.034 6.034 6.0401 6.0481 7 6.038 6.038 6.038 6.038 6.038 6.038 6.058 6.038 6.038 6.038 6.058 6.038 Yew 6.0398 8 0.042 6.042 6.042 0.042 0.046 0.040 6.040 6.040 6.040 6.048 6.042 6.042 9.0381 6.0381 9 8.042 0.042 6.042 6.042 6.045 6.045 6.045 0.045 6.045 6.045 6.042 06.042 0.0374 6.0374 18 6.047 6.047 6.047 6.047 6.047 6.047 6.047 6.047 6.047 6.047 6.047 6.047 6.0376 6.0376 WW 6.048 6.048 6.048 6.048 6.046 0.040 0.040 6.040 0.040 6.040 06.048 6.048 6.0367 6.0367 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 0.0367 6.0367 13 6.045 6.045 6.045 6.045 6.050 6.050 6.050 08.050 6.050 6.058 6.045 0.045 0.0378 6.0370 14 0.047 6.047 6.047 6.047 6.052 6.052 6.052 6.052 6.052 6.052 6.047 6.047 j= 6.0374 15 6.048 6.048 6.048 6.048 6.056 6.056 6.050 6.050 6.056 6.050 6.048 6.048 0.0381 6.0381 16 0.048 6.048 6.048 6.048 6.050 6.050 6.050 0.050 6.050 6.058 6.048 6.048 0.0398 6.0390 17 0.049 6.049 6.049 6.049 0.045 06.045 6.045 6.045 6.045 6.045 6.049 6.049 6.0401 6.0401 18 6.046 6.046 6.046 6.046 6.047 6.047 6.047 6.047 6.047 6.047 6.046 6.046 _ 0.0414 8.0414 19 0.043 6.043 0.043 6.043 6.056 6.056 6.050 6.050 6.050 8.056 6.043 6.043 0.0428 6.6428 26 6.038 6.038 6.038 6.038 6.045 6.045 6.045 6.045 6.045 6.045 6.038 8.038 0.0443 6.0443 21 6.038 6.038 6.038 6.038 6.041 6.041 06.041 6.041 6.041 6.041 6.038 6.038 2.04608 6.0460 22 0.041 6.041 6.041 6.041 6.041 6.041 6.041 6.041 6.041 6.041 6.041 6.041 0.0477 6.8477 23 6.045 6.045 6.045 6.045 6.041 6.041 6.041 06.041 6.041 6.041 6.045 6.045 0.0494 6.8494 24 6.046 6.046 6.040 0.046 8.045 6.045 6.043 6.043 6.043 6.043 6.040 0.048 Building use per month, gallons of fuel oil / BUILDING 1A - SPE ADMIN. BUILDI 1A 571 443 277 238 322 333 333 322 238 277 443 571 4,368 BUILDING 1B - POST OFFICE 1B 321 286 256 258 126 86 38 27 18 149 242 321 2,108 BUILDING 1C - GAS STATION 1c 316 313 306 295 244 185 128 126 158 231 268 299 2,857 BUILDING 1D - STORE 1D 547 541 518 511 423 328 221 268 274 406 464 517 4,944 BUILDING 2 - SCHOOL 2 6479 5460 5363 4776 3558 2015 6 2506 3278 3379 3480 5487 45,753 BUILDING 6 6 8 6 6 8 6 8 8 a 6 6 6 \ soo POINT WASTE HEAT RECOVERY ESTIMATION PAGE 2 CONCEPT 2 a 7 6 6 6 6 6 6 6 6 6 6 6 6 BUILDING 8 6 6 6 6 6 6 6 6 6 6 6 6 BUILDING 9 a 6 6 6 6 6 6 6 6 6 6 8 6 6 6 6 8 6 6 6 6 6 6 8 TOTAL 8234.74 7037.24 6713.89 6063.84 4658.63 2938.55 719.278 3177.38 3949.95 4435.73 4897.72 7194.69 68,022 Heat available per hour by month (BTU) JAN FEB MAR APR MAY JUN JUL AUG SEP ocT NOV DEC 1087488 834665. 819443. 825711. 1629602 993389. 784499. 935069. 788257. 893715. 824816. 878541. 951823. 788184. 773683. 779621. 1442979 877457. 691777. 825617. 688007. 788858. 778773. 829678. 896166. 741543. 727923. 733531. 1293681 784711. 617599. 738055. 614286. 704972. 732730. 788799. 896166. 741543. 727923. 733531. 1256357 761525. 599055. 716165. 595756. 684001. 732738. 788799. 868338. 718262. 705043. 710486. 1256357 761525. 599055. 716165. 595756. 684081. 789709. 756364. 896166. 741543. 727923. 733531. 1368330 831084. 654688. 781836. 651186. 746915. 732738. 788799. 1087480 834665. 819443. 825711. 1368330 831084. 654688. 781836. 651186. 746915. 824816. 878541. 1118794 927788. 910964. 917892. 1442979 877457. 691777. 825617. 688007. 788858. 916982. 976282. 1118794 927788. 918964. 917892. 1629682 993389. 784499. 935869. 788257. 893715. 916982. 976282. 16 1257936 1844192 1825364 1033117 1764251 1839762 821588. 978858. 817158. 935658. 1832009 1698458 11 1285764 1867472 1048245 1056162 1442979 877457. 691777. 825617. 688007. 788858. 1055031 1122894 12 1257936 1844192 1825364 1033117 1741575 1062948 848132. 1000741 835608. 956630. 1032009 1098458 13 1262279 997630. 979684. 987627. 1816224 1109321 877221. 1844522 872588. 998573. 985966. 1049588 ! 14 1257936 1844192 1825364 1833117 1890873 1155694 914310. 1888302 989489. 1040516 1032009 1098458 15 1285764 1867472 1048245 1056162 1816224 1109321 877221. 1044522 872588. 998573. 1055031 1122894 16 1285764 1867472 1048245 1056162 1816224 1189321 877221. 1044522 872588. 998573. 1855031 1122894 17 1313593 1698753 1871125 1879287 1629662 993389. 784499. 935069. 788257. 893715. 1678052 1147329 \ 18 1230187 1626911 1862484 1016672 1764251 1639762 821588. 978858. 817158. 935658. 1608988 1674023 ; 19 1146622 951869. 933844. 940937. 1816224 1189321 877221. 1044522 872508. 998573. 939923. 1000717 28 1087486 834665. 819443. 825711. 1629602 993389. 784499. 935069. 786257. 893715. 824816. 878541. | 21 1887488 834665. 819443. 825711. 1488304 900643. 710321. 847508. 706457. 809830. 824816. 878541. i ; 22 1098965 984588. 888084. 894847. 1480304 900643. 710321. 847508. 706457. 889830. 893880. 951846 23 1202279 997638. 979604. 987627. 1480304 900643. 710321. 847508. 706457. 889830. 985966. 1049588 24 1863137 881227. 865264. 871881. 1554953 947616. 747418. 891288. 743357. 851773. 870859. 927411. ANNUAL ae, 3E+B7 «= 2E+07 «= 2E+07 «= 2E+O7 «= 4E+O7 «= 2E+07 «= 2E+O7 «= 2E+07 «= 2E+87 «= 2E+07 «= 2E+07 «= 2E+07 «8. 41 E+09 wnrnurun = 9 Heat demand by hour by month (BTU) JAN FEB MAR APR MAY JUN JUL AUG SEP ocT NOV DEC 1337685 1143158 1098633 985035. 756768. 477350. 116842. 516134. 641647. 720559. 795605. 1168736 1298795 1103887 1052403 950507. 730241. 460618. 112746. 498042. 619156. 695301. 767717. 1127768 1244779 1663762 1614885 916622. 764288. 444197. 168727. 486287. 597683. 670514. 740348. 1087564 1288494 1825917 978779. 884011. 679155. 428394. 104859. 463200. 575841. 646659. 714009. 1048872 1158764 998255. 944756. 853282. 655547. 413503. 181214. 447699. 555824. 624181. 689190. 1612412 1128367 957442. 913458. 825088. 633824. 399801. 9786.4 432283. 537486. 603498. 666353. 978865. 1886018 928088. 885445. 799714. 614392. 387543. 94868.1 419038. 520930. 584996. 645923. 948854. 1856357 982741. 861263. 777873. 597612. 376959. 92269.4 487586. 586783. 569619. 628282. 922940. 1031937 881872. 841353. 759891. 583797. 368245. 96136.4 398164. 494989. 555864. 613758. 961604. 1813213 865871. 826086. 746103. 573204. 361563. 88500.8 390939. 486008. 545778. 602621. 885245. 1880533 855034. 815748. 736765. 566031. 357038. 87393.3 386046. 479925. 538948. 595880. 874166. 994133. 849565. 810530. 732053. 562418. 354754. 86834.3 383577. 476856. 535501. 591273. 868574. 994133. 849565. 810530. 732053. 562418. 354754. 86834.3 383577. 476856. 535501. 591273. 868574. 1880533 855034. 815748. 736765. 566031. 357038. 87393.3 386046. 479925. 538948. 595080. 874166. wnonryrnurwn = Funes ‘SAND POINT HASTE HEAT RECOVERY ESTIMATION PAGE 3 15 1813213 865871. 826086. 746103. 573204. 16 1831938 881872. 841353. 759891. 583797. 17 1856358 962741. 861263. 777873. 597613. 18 1886018 928888. 885445. 799714. 614392. 19 1120367 957442. 913458. 825008. 633825. 1158764 998255. 944756. 853282. 655547. 1288494 1825917 978779. 884611. 679155. 1244779 1863762 1814885 916622. 764208. 1298795 1183087 1052483 950587. 730241. 1337685 1143158 1898633 985035. 756768. 3E+O7? «= 2E+87 0 2E+07 «= 2E+07 «= 2E+07 PRREB Heat delivered by hour by month (BTU) JAN FEB MAR APR MAY 1887486 834665. 819443. 825711. 756768. 951823. 788104. 773683. 779621. 730241. 896166. 741543. 727923. 733531. 704288. 896166. 741543. 727923. 733531. 679155. 868338. 718262. 705043. 718486. 655547. 896166. 741543. 727923. 733531. 633824. 1087488 834665. 819443. 799714. 614392. 1856357 982741. 861263. 777873. 597612. 1831937 881872. 841353. 759891. 583797. 1013213 865871. 826086. 746103. 573204. 1088533 855034. 815748. 736765. 566031. 994133. 849565. 818538. 732053. 562418. 994133. 849565. 818538. 732053. 562416. 1860533 855034. 815748. 736765. 566031. 1813213 865871. 826086. 746103. 573204. 1031938 881872. 841353. 759891. 583797. 1056358 982741. 861263. 777873. 597613. 1086018 928888. 885445. 799714. 614392. 1128367 951869. 913458. 825008. 633825. 1887488 834665. 819443. 825711. 655547. 1887488 834665. 819443. 825711. 679155. 1898965 984508. 888084. 894847. 764268. 1282279 997638. 979684. 950507. 730241. 1663137 881227. 865204. 871801. 756768. Oorynuwrun = SIRBDRFUS ZBL 2 SRB 361563. 368245. 376959. 387543. 399881. 413583. 428394. 444197. 460618. 477358. 9659942 JUN 477358. 460618. 444197. 428394. 413583. 399881. 387543. 376959. 368245. 361563. 357038. 354754. 354754. 357038. 361563. 368245. 376959. 387543. 399881. 413583. 428394. 444197. 460618. 477358. 88500.8 90136 .4 92269.4 94868.1 97860.4 161214, 184859. 168727. 112746. 116842. 2364498 JUL 116842. 112746. 108727. 184859. 101214. 97868.4 94860.1 92269.4 98136.4 88500.8 87393.3 86834 .3 86834 .3 87393.3 88500.8 98136.4 92269.4 94860.1 97860.4 101214. 184859. 168727. 112746. 116842. 2E+O7 «= 2E+07 «= 2E+07 «= 2E+07 «= 2E+87 9659942 2364490 FUEL OIL CONSUMPTION DISPLACED (GALLONS) JAN FEB MAR APR MAY 73968 «= 6219 6818 = 5723 4659 398939. 398164. 487586. 419830. 432283. 447899. 463200. 488287. 498042. 516134. 1E+87 AUG 516134. 498042. 488287. 463200. 447699. 432283. 419838. 407586. 398164. 398939. 386046. 383577. 383577. 386046. 396939. 398164. 407586. 419838. 432283. 447699. 463200. 480287. 498842. 516134. 1E+87 JUN JUL AUG 2939 719 3177 486008. 494989. 506783. 520938. 537466. 555824. 575841. 597683. 619156. 641647. 1E+87 SEP 641647. 619156. 597683. 575841. 555824. 537406. 520938. 586783. 494989. 486008. 479925. 476856. 476856. 479925. 486008. 494989. 586703. 520938. 537406. 555824. 575841. 597683. 619156. 641647. 1E+O?7 SEP 3950 545778. 555864. 569619. 584996. 603498. 624181. 646659. 678514. 695381. 720559. 1E+87 ocT 720559. 695301. 670514. 646659. 624181. 683498. 584996. 569819. 555864. 545778. 538948. 535581. 535581. 538948. 545778. 555864. 569619. 584996. 603498. 624181. 646659. 670514. 695381. 720559. 1E+87 ocT 4436 682621. 613758. 628282. 645923. 666353. 689198. 714889. 748349. 767717. 795605. 2E+87 NOV 795685. 767717. 732738. 714069. 689196. 666353. 645923. 628282. 613758. 682621. 595680. 591273. 591273. 595888. 662621. 613758. 628282. 645923. 666553. 689190. 7140889. 740349. 767717. 795605. 2E+87 NOV 4895 CONCEPT 2 885245. 901604. 922948. 948855. 978865. 1812412 1048872 1887564 1127768 1168736 = ANNUAL 2E+87 6.BBE+09 DEC 878541. 829676. 786799. 786799. 756364. 786799. 878541. 922948. 981604. 885245. 874166. 868574. 868574. 874166. 885245. 901604. 922948. 948855. 978865. 878541. 878541. 951846. 1849588 927411. ANNUAL 2E+07 5. 66E+89 DEC ANNUAL 6458 = 56,575 SAND POINT WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN JANUARY 26, 1990 Contact Names The following people were contacted in the field: Donna Rogers, Office Manager - Sand Point Electric (383-4020) Dennis Whitney, Sand Point Fuel (383-4020) Dave Paulus, Operator - Sand Point Electric (383-4020) Chick Beckley, Principal at Sand Point Schoo! (383-2393) Don Eubank, Maintenance Man at Sand Point School (383-2393) Noel Hemenover, Postmaster - Sand Point Post Office Richard Cumberlidge, Caretaker for Gas station/Store (383-3291) SAND POINT WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN JANUARY 26, 1990 Cost Estimates wp. SIMPLE ECONOMIC SUMMARY COST SUMMARY CONCEPT 1A $55,622 $72,309 CONCEPT 1B $93,004 $120,905 CONCEPT 1C $112,211 $145,874 CONCEPT 1D $169,106 $219,838 CONCEPT 2 $518,281 $673,765 FUEL OIL SAVINGS SUMMARY: oe 360 O00 CONCEPT 1A 0 0 CONCEPT 1B é 468 0 0 $e 796 CONCEPT 1C 9,325 0 0 $12,682 CONCEPT 1D 14,269 0 0) $19,406 CONCEPT 2 14,269 42,306 0 $69,327 SIMPLE PAYBACK SUMMARY CONCEPT 1A $72,309 4,368 12.2 CONCEPT 1B $120,905 6,468 38.706 13.7 CONCEPT 1C $145,874 9,325 $12,682 11.5 CONCEPT 1D $219,838 14,269 $19,406 11.3 CONCEPT 2 $673,765 56,575 $69,327 9.7 = - x HMS 9007 CONSTRUCTION COST STUDY WASTE HEAT RECOVERY SYSTEM SAND POINT, 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 January 24, 1990 (907) 562-0420 FAX WASTE HEAT RECOVERY SYSTEM PAGE 1 SAND POINT, ALASKA CONSTRUCTION COST STUDY JANUARY 24, 1990 NOTES REGARDING THE PREPARATION OF THIS COST STUDY This study has been prepared from fourteen (14) 8 1/2"x11" sketches, photographs and narratives linking six (6) buildings. There are four (4) parts to Concept 1 and one t1) to Concept 2. 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 1990. Since a new power plant would not be in at the time of bidding this project, it is assumed that all work shown for the plant heat exchanger and piping will be done in the existing power plant. Therefore, no cost for relocation of this equipment has been included, once the new power plant has been built. This is a statement of probable construction cost only and excludes the following costs. A/E fees Administrative costs Cost for any other remodel work Cost of asbestos abatement, if found in existing pipes/equipment. Pwnre ee! ie)" fe = ; ’ equ c_ \ —=_ ; am Gp WASTE HEAT RECOVERY SYSTEM PAGE 2 SAND POINT, ALASKA CONSTRUCTION COST STUDY JANUARY 24, 1990 GENERAL SUMMARY CONCEPT 1Al (PP and SPE) 55,622 OR 1B2 (includes 1Al + PO) 93,004 OR 1C3 (includes 1B2 + GS) 112,211 OR 104 (includes 1C3 + RS) 169,106 OR 2 #5 (excludes 1D4 arctic pipe, and includes new sizes - all six (6) buildings) 518,281 WASTE HEAT RECOVERY SYSTEM SAND POINT, ALASKA CONSTRUCTION COST STUDY ED PAGE 3 JANUARY 24, 1990 SUMMARY MATERIAL LABOR TOTAL CONCEPT 1Al - Power Plant and SPE Building #1 Arctic Pipes 2,079 1,706 3,785 Power Plant 18,273 5.213 23,486 SPE Building 3,223 1,109 4,332 SUBTOTAL DIRECT WORKS 23,575 8,028 31,603 General Conditions, Overhead and Profit 60 % 18,962 Contingency 10 % 5,057 TOTAL CONCEPT 1A 55,622 CONCEPT 1B2 - Power Plant, SPE Building and Post Office #1-2 Arctic Pipes 11,179 10,105 21,284 Power Plant 18,273 5.213 23,486 SPE Building 3,223 1,109 4,332 Post Office 3,535 1,216 4,751 SUBTOTAL DIRECT WORKS 36,210 17,643 53,853 General Conditions, Overhead and Profit 57 % 30,696 Contingency 10 % 8,455 TOTAL CONCEPT 1B2 93,004 \ —_> = en WASTE HEAT RECOVERY SYSTEM PAGE 4 SAND POINT, ALASKA CONSTRUCTION COST STUDY JANUARY 24, 1990 SUMMARY MATERIAL LABOR TOTAL CONCEPT 1C3 - Power Plant, SPE Building, Post Office and Gas Station #1-3 Arctic Pipes 15,349 13,881 29,230 Power Plant 18,273 5,213 23,486 SPE Building 38223 1,109 4,332 Post Office 35535 1,216 4,751 Gas Station 2,950 1,064 4,014 SUBTOTAL DIRECT WORKS 43,330 22,483 65,813 General Conditions, Overhead and Profit 55 % 36,197 Contingency 10 % 10,201 TOTAL CONCEPT 1C3 112,211 WASTE HEAT RECOVERY SYSTEM PAGE 5 SAND POINT, ALASKA CONSTRUCTION COST STUDY JANUARY 24, 1990 SUMMARY MATERIAL LABOR TOTAL CONCEPT 1D4 - Power Plant, SPE Building, Post Office, Gas Station and Retail Store #1-4 Arctic Pipes 30,040 26,780 56,820 Power Plant 18,273 §,213 23,486 SPE Building 3,223 1,109 4,332 Post Office 3,535 1,216 4,751 Gas Station 2,950 1,064 4,014 Retail Store 5,205 1,871 7,076 SUBTOTAL DIRECT WORKS 63,226 37,253 100,479 General Conditions, Overhead and Profit 53 % 53,254 Contingency 10 % 15,373 TOTAL CONCEPT 1D4 169,106 - . 3 Lo iy 3 WASTE HEAT RECOVERY SYSTEM PAGE 6 SAND POINT, ALASKA CONSTRUCTION COST STUDY JANUARY 24, 1990 SUMMARY MATERIAL LABOR TOTAL CONCEPT 2 #5 - All Six (6) Buildings #1-5 Arctic Pipes 131,547 117,129 248,676 Power Plant 18,273 5,213 23,486 SPE Building 3,223 1,109 4,332 Post Office 3,535 1,216 4,751 Gas Station 2,950 1,064 4,014 Retail Store 5,205 1,871 7,076 School 12,966 3,987 16,953 SUBTOTAL DIRECT WORKS 177,699 131,589 309, 288 General Conditions, Overhead and Profit 52.34% 161,881 Contingency 10 &% 47,112 TOTAL CONCEPT 2 #5 518,281 WASTE HEAT RECOVERY SYSTEM PAGE 7 SAND POINT, ALASKA CONSTRUCTION COST STUDY JANUARY 24, 1990 CONCEPT 1A #1 UNIT UNIT UNIT QUANTITY UNIT RATE MATERIAL RATE LABOR RATE TOTAL Power Plant and SPE Buildings Size #1 Arctic Pipe: Excavate and stockpile 12 CY -00 0 5.95 7A; 5.95 71 Bedding material around pipes 5 cY 35.00 175 12.50 63 47.50 238 Backfill with excavated materials 7 cy -00 0 12.50 88 12.50 88 Dispose surplus 5 CY .00 0 4.20 2 4.20 21 Grade disturbed areas 180 SE -00 0 15 27 l'5) 27 Arctic pipe comprising 2" schedule 40 steel pipe, 2" polyurethane insulation and 6" PVC jacket pipe (2) 72 LE 19.50 1,404 16.20 1,166 35.70 2,570 Connect arctic pipe to buildings 4 EA 125.00 500 67.50 270 ~=192.50 770 SUBTOTAL 2,079 1,706 3,785 WASTE HEAT RECOVERY SYSTEM PAGE 8 SAND POINT, ALASKA CONSTRUCTION COST STUDY JANUARY 24, 1990 CONCEPT 1A #1 UNIT UNIT UNIT QUANTITY UNIT RATE MATERIAL RATE LABOR RATE TOTAL Power Plant and SPE Buildings Size #1 Power Plant: Remove existing heat exchangers 2 EA -00 0 170.00 340 170.00 340 Cut and remove pipes and fittings from above 2 LOTS -00 0 110.00 220 =110.00 220 300 GPM/2700 MBH, 20 gauge stainless plate heat exchanger and frame 1 EA 11875.00 11,875 585.00 585 12460.00 12,460 100 gallon expansion tank 1 EA 1150.00 1,150 220.00 220 1,370.00 1,370 Air separator 1 EA 225.00 225 80.00 80 305.00 305 55 gallon glycol drum 1 EA 145.00 145 55.00 55 200.00 200 14 RPG hand pump il EA 170.00 170 70.00 70 240.00 240 Glycol mix 100 GALS 4.20 420 -40 40 4.60 460 WASTE HEAT RECOVERY SYSTEM PAGE 9 SAND POINT, ALASKA CONSTRUCTION COST STUDY JANUARY 24, 1990 CONCEPT 1A #1 UNIT UNIT UNIT QUANTITY UNIT RATE MATERIAL RATE LABOR RATE TOTAL Power Plant and SPE Buildings Size #1 Power Plant: (Continued) 5" insulated schedule 40 steel pipe 60 LF 23.75 1,425 28.50 1,710 52.25 3,135 1 1/2" ditto copper pipe to expansion tank 10 LF 6.50 65 9.70 97 16.20 162 3/4" ditto to glycol pump 10 LF 3.70 37 7.10 71 10.80 108 5" gate valves 6 EA 335.00 2,010 125.00 750 460.00 2,760 5" tees and elbows 10 EA 65.00 650 75.00 750 140.00 1,400 1 1/2" to 3/4" ditto 6 EA 3.50 21 12.50 75 16.00 96 Connect new 5" pipe to boiler side 2 EA 40.00 80 75.00 150 =115.00 230 SUBTOTAL 18,273 5,213 23,486 WASTE HEAT RECOVERY SYSTEM PAGE 10 SAND POINT, ALASKA CONSTRUCTION COST STUDY JANUARY 24, 1990 CONCEPT 1A #1 UNIT UNIT . UNIT QUANTITY UNIT RATE MATERIAL RATE LABOR RATE TOTAL Power Plant and SPE Buildings Size #1 SPE Buildings: Cut existing 2" pipe 2 EA -00 0 25.00 50 25.00 50 Remove 2" pipe 10 LF 00 0 3.50 35 3.50 35 135 MBH, 20 gauge stainless steel plate heat exchanger and frame 1 EA 2700.00 2,700 295.00 295 2,995.00 2,995 2" insulated copper pipe 30 LF 8.80 264 12.95 389 21.75 653 2" balance valves 2 EA 40.00 80 25.00 50 65.00 130 2" gate valves 2 EA 45.00 90 25.00 50 70.00 140 2" tees and elbows 10 EA 5.85 59 15.00 150 20.85 209 Connect new 2" pipe to boiler side 2 EA 15.00 30 45.00 90 60.00 120 SUBTOTAL 35223 1,109 4,332 WASTE HEAT RECOVERY SYSTEM PAGE 11 SAND POINT, ALASKA CONSTRUCTION COST STUDY JANUARY 24, 1990 CONCEPT 1B #2 UNIT UNIT UNIT QUANTITY UNIT RATE MATERIAL RATE LABOR RATE TOTAL Power Plant, SPE Buidings and Post Office Size #1-2 Arctic Pipe: Excavate and stockpile 86 cy -00 0 5.95 512 5.95 512 Bedding material around pipes 36 cY 35.00 1,260 12.50 450 47.50 1,710 Backfill with excavated materials 50 CY -00 0 12.50 625 12.50 625 Dispose surplus 36 cy -00 0 4.20 151 4.20 151 Grade disturbed areas 1,295 SF .00 0 15 194 15 194 Arctic pipe comprising 2" schedule 40 steel pipe, 2" polyurethane insulation and 6" PVC jacket pipe (2) 72 LF 19.50 1,404 16.20 1,166 35.70 2,570 Ditto 1 1/2" pipe (2) 446 LE 16.85 7,515 14.50 6,467 31.35 13,982 Connect arctic pipe to buildings 8 EA 125.00 1,000 67.50 540 192.50 1,540 SUBTOTAL 11,179 10,105 21,284 TOTALS: WASTE HEAT RECOVERY SYSTEM PAGE 12 SAND POINT, ALASKA CONSTRUCTION COST STUDY . JANUARY 24, 1990 CONCEPT 1B #2 UNIT UNIT UNIT QUANTITY UNIT RATE MATERIAL RATE LABOR RATE TOTAL Power Plant, SPE Buidings and Post Office Size #1-2 Power Plant (Same as 1A1) 1 LOT 18,273 5,213 23,486 SPE Building (Same as 1A1) 1 LOT 3,223 1,109 4,332 Post Office: Cut existing 16/16 R1A stream 1 EA -00 0 90.00 90 90.00 90 Install new 70 MBH heating coil in ditto 1 EA 655.00 655 160.00 160 815.00 815 70 MBH, 20 gauge stainless steel plate HX and frame i EA 1880.00 1,880 220.00 220 2,100.00 2,100 10 GPM circulation pump 1 EA 435.00 435 110.00 110 545.00 545 1 1/2" insulated copper pipe 30 LF 6.50 ~ 195 9.70 291 16.20 486 1 1/2" balance valves 1 EA 35.00 35 25.00 25 60.00 60 WASTE HEAT RECOVERY SYSTEM PAGE 13 SAND POINT, ALASKA CONSTRUCTION COST STUDY JANUARY 24, 1990 CONCEPT 1B #2 UNIT UNIT UNIT QUANTITY UNIT RATE MATERIAL RATE LABOR RATE TOTAL Power Plant, SPE Buidings and Post Office Size #1-2 Post Office: (Continued) 1 1/2" gate valves 2 ~=~EA 40.00 80 25.00 50 65.00 130 1 1/2" tees and elbows 10 EA 3.50 35 12.50 125 16.00 160 Conduit and power connection to circulation pump 1 EA 220.00 220 145.00 145 365.00 365 SUBTOTAL 3,535 1,216 4,751 WASTE HEAT RECOVERY SYSTEM PAGE 14 SAND POINT, ALASKA CONSTRUCTION COST STUDY JANUARY 24, 1990 CONCEPT 1C #3 UNIT UNIT UNIT QUANTITY UNIT RATE MATERTAL RATE LABOR RATE TOTAL Power Plant, SPE Buidings, Post Office and Gas Station Size #1-3 Arctic Pipe: Excavate and stockpile 116 cy -00 0 5.95 690 5.95 690 Bedding material around pipes 49 cY 35.00 1,715 12.50 613 47.50 2,328 Backfill with excavated materials 67 cY 00 0 12.50 838 12.50 838 Dispose surplus 49 cy -00 0 4.20 206 4.20 206 Grade disturbed areas 1,745 SF -00 0 15 262 15 262 Arctic pipe comprising 2" schedule 40 steel pipe, 2" polyurethane insulation and 6" PVC jacket pipe (2) 518 LF 19.50 10,101 16.20 8,392 35.70 18,493 Ditto 1 1/2" pipe (2) 180 LF 16.85 3,033 14.50 2,610 31.35 5,643 Connect arctic pipe to buildings 4 EA 125.00 500 67.50 270 =192.50 770 SUBTOTAL 15,349 13,881 29,230 WASTE HEAT RECOVERY SYSTEM SAND POINT, ALASKA CONSTRUCTION COST STUDY CONCEPT 1C #3 QUANTITY PAGE 15 JANUARY 24, 1990 UNIT UNIT UNIT UNIT RATE MATERTAL RATE LABOR RATE TOTAL Power Plant, SPE Buidings, Post Office and Gas Station Size #1-3 Power Plant (Same as 1Al) SPE Building (Same as 1A1) Post Office (Same as 1B2) Gas Station: Cut existing 1 1/2" pipe Remove 1 1/2" pipe 100 MBH, 20 gauge stainless steel plate heat exchanger and frame 1 1/2" insulated copper pipe 1 1/2" balance valves LOT LOT LOT EA LF 18,273 5,213 23,486 3,223 1,109 4,332 3,535 1,216 4,751 -00 0 20.00 40 20.00 40 -00 0 3.20 26 3.20 26 2400.00 2,400 245.00 245 2,645.00 2,645 6.50 260 9.70 388 16.20 648 35.00 105 25.00 75 60.00 180 Cont inued WASTE HEAT RECOVERY SYSTEM PAGE 16 SAND POINT, ALASKA CONSTRUCTION COST STUDY JANUARY 24, 1990 CONCEPT 1C #3 UNIT UNIT UNIT QUANTITY UNIT RATE MATERTAL RATE LABOR RATE TOTAL Power Plant, SPE Buidings, Post Office and Gas Station Size #1-3 Gas Station: (Continued) 1 1/2" gate valves 3 EA 40.00 120 25.00 75 65.00 195 1 1/2" tees and elbows 10 EA 3.50 35 12.50 125 16.00 160 Connect to existing pipes 2 EA 15.00 30 45.00 90 60.00 120 SUBTOTAL 2,950 1,064 4,014 WASTE HEAT RECOVERY SYSTEM PAGE 17 SAND POINT, ALASKA CONSTRUCTION COST STUDY JANUARY 24, 1990 CONCEPT 1D #4 UNIT UNIT UNIT QUANTITY UNIT RATE MATERIAL RATE LABOR RATE TOTAL Power Plant, SPE Buidings, Post Office, Gas Station and Retail Store Buildings Size #1-4 Arctic Pipe: Excavate and stockpile 217 cy -00 0 6395 1291 5.95 1,291 Bedding material around pipes 93 cy 35.00 3,255 12.50 1,163 47.50 4,418 Backfill with excavated materials 124 CY -00 0 12.50 1,550 12.50 1,550 Dispose surplus 93 cY -00 0 4.20 391 4.20 391 Grade disturbed areas 3,345 SF -00 0 oS 502 15 502 Arctic pipe comprising 2" schedule 40 steel pipe, 2" polyurethane insulation and 6" PVC jacket pipe (2) 698 LF 19.50 13,611 16.20 11,308 35.70 24,919 Ditto 1 1/2" pipe (2) 640 LE 16.85 10,784 14.50 9,280 31.35 20,064 2" tee 1 EA 155.00 155 80.00 80° 235.00 235 1 1/2" tee 1 EA 140.00 140 75.00 75 215.00 215 WASTE HEAT RECOVERY SYSTEM PAGE 18 SAND POINT, ALASKA CONSTRUCTION COST STUDY JANUARY 24, 1990 CONCEPT 1D #4 UNIT UNIT UNIT QUANTITY UNIT RATE MATERIAL RATE LABOR RATE TOTAL Power Plant, SPE Buidings, Post Office, Gas Station and Retail Store Building Size #1-4 Arctic Pipes: (Continued) 1 1/2" bend i EA 95.00 95 60.00 60 155.00 155 Connect arctic pipe to buildings 16 EA 125.00 2,000 67.50 1,080 192.50 3,080 SUBTOTAL 30,040 26,780 56,820 Power Plant (Same as 1A1) 1 LOT 18,273 5,213 23,486 SPE Building (Same as 1Al) 1 LOT 35e23 1,109 4,332 Post Office (Same as 1B2) 1 LOT 3,535 1,216 4,751 Gas Station (Same as 1C3) 1 LOT 2,950 1,064 4,014 WASTE HEAT RECOVERY SYSTEM PAGE 19 SAND POINT, ALASKA CONSTRUCTION COST STUDY JANUARY 24, 1990 CONCEPT 1D #4 UNIT UNIT UNIT QUANTITY UNIT RATE MATERIAL RATE LABOR RATE TOTAL Power Plant, SPE Buidings, Post Office, Gas Station and Retail Store Building Size #1-4 Retail Store: Cut existing 24x24 R/A stream 1 EA 00 0 100.00 100 =100.00 100 Install new 140 MBH heating coil in ditto 1 EA 730.00 730 180.00 180 910.00 910 140 MBH, 20 gauge stainless steel plate heat exchanger and frame 1 EA 2850.00 2,850 300.00 300 3,150.00 3,150 20 GPM circulation pumps 1 EA 695.00 695 150.00 150 845.00 845 1 1/2" insulated copper pipe 80 LF 6.50 520 9.70 776 16.20 1,296 1 1/2" balance valves ll EA 35.00 35 25.00 25 60.00 60 1 1/2" gate valves 2 EA 40.00 80 25.00 50 65.00 130 1 1/2" tees and elbows 10 EA 3.50 35 12.50 125 16.00 160 WASTE HEAT RECOVERY SYSTEM PAGE 20 SAND POINT, ALASKA CONSTRUCTION COST STUDY JANUARY 24, 1990 CONCEPT 1D #4 UNIT UNIT UNIT QUANTITY UNIT RATE MATERTAL RATE LABOR RATE TOTAL Power Plant, SPE Buidings, Post Office, Gas Station and Retail Store Building Size #1-4 Retail Store: (Continued) Conduit and power connection to circulation pump 1 EA 260.00 260 165.00 165 425.00 425 SUBTOTAL 5,205 1,871 7,076 WASTE HEAT RECOVERY SYSTEM PAGE 21 SAND POINT, ALASKA CONSTRUCTION COST STUDY JANUARY 24, 1990 CONCEPT 2 #5 UNIT UNIT UNIT QUANTITY UNIT RATE MATERIAL RATE LABOR RATE TOTAL All Six (6) Buildings OMIT concept 1D4 arctic pipe only 1 LOT (30,040) (26,780) (56,820) ADD Arctic Pipe: Excavate and stockpile 1,006 GY. -00 0 5.95 5,986 5.95 5,986 Bedding material around pipes 459 GY 35.00 16,065 12.50 5,738 47.50 21,803 Backfill with excavated materials 547 GY -00 0 12.50 6,838 12.50 6,838 Dispose surplus 459 cy -00 0 4.20 1,928 4.20 1,928 Grade disturbed areas 12,470 SF -00 0 -15 1,871 15 1,871 Arctic pipe comprising 1 1/2" schedule 40 steel pipe, 2" polyurethane insulation and 6" PVC jacket pipe (2) 640 LF 16.85 10,784 14.50 9,280 31.35 20,064 Ditto 2" pipe (2) 72 LF 19.50 1,404 16.20 1,166 35.70 2,570 WASTE HEAT RECOVERY SYSTEM PAGE 22 SAND POINT, ALASKA CONSTRUCTION COST STUDY JANUARY 24, 1990 CONCEPT 2 #5 UNIT UNIT UNIT QUANTITY UNIT RATE MATERTAL RATE LABOR RATE TOTAL All Six (6) Buildings ADD Arctic Pipe: (Continued) Arctic pipe comprising 4" schedule 40 steel pipe, 2" polyurethane insulation and 8" PVC jacket pipe (2) 3,650 LF 29.50 107,675 25.00 91,250 54.50 198,925 Ditto 5" pipe and 9" PVC jacket 626 LF 36.70 22,974 29.50 18,467 66.20 41,441 5"x4"x5" tee 1 EA 350.00 350 =:135.00 135 485.00 485 4"x1 1/2"x4" tee 1 EA 240.00 240 110.00 110 350.00 350 1 1/2" bend 1 EA 95.00 95 60.00 60 155.00 155 Connect arctic pipes to buildings 16 EA 125.00 2,000 67.50 1,080 192.50 3,080 SUBTOTAL 131,547 117,129 248,676 WASTE HEAT RECOVERY SYSTEM PAGE 23 SAND POINT, ALASKA CONSTRUCTION COST STUDY JANUARY 24, 1990 CONCEPT 1D #4 UNIT UNIT UNIT QUANTITY UNIT RATE MATERIAL RATE LABOR RATE TOTAL All Six (6) Buildings Power Plant (Same as 1A1) 1 LOT 18,273 5,213 23,486 SPE Building (Same as 1Al) 1 LOT 35e23 1,109 4,332 Post Office (Same as 1B2) 1 LOT 3035 1,216 4,751 Gas Station (Same as 1C3) 1 LOT 2,950 1,064 4,014 Retail Store (Same as 1D4) 1 LOT 5,205 1,871 7,076 School: Cut existing 4" pipes 2 EA -00 0 45.00 90 45.00 90 Remove 4" pipe 20 LE .00 0 5.20 104 5.20 104 2150 MBH/240 GPM, 20 gallon stainless steel plate heat exchanger and frame 1 EA 9250.00 9,250 520.00 520 9,770.00 9,770 4" insulated steel pipe 95 LF 19.85 1,886 21.50 2,043 41735 3,929 ww ww ew on wn eww ww ow ow nn oo 0 nn nn ow wo or nw ee ew ww wwe www www ewww eee eww ween ow on oe ge eee wn owen en enn WASTE HEAT RECOVERY SYSTEM PAGE 24 SAND POINT, ALASKA CONSTRUCTION COST STUDY JANUARY 24, 1990 CONCEPT 1D #4 UNIT UNIT UNIT QUANTITY UNIT RATE MATERIAL RATE LABOR RATE TOTAL All Six (6) Buildings School: (Continued) 4" balance valves 2 EA 280.00 560 95.00 190 375.00 750 4" gate valves 2 EA 300.00 600 100.00 200 400.00 800 4" tees and elbows 10 EA 60.00 600 70.00 700 =: 130.00 1,300 Connect to existing pipes 2 EA 35.00 70 70.00 140 ~=105.00 210 SUBTOTAL 12,966 3,987 16,953 WASTE HEAT RECOVERY SYSTEM PAGE 25 SAND POINT, ALASKA CONSTRUCTION COST STUDY JANUARY 24, 1990 GENERAL CONDITIONS, OVERHEAD AND PROFIT UNIT UNIT UNIT QUANTITY UNIT RATE MATERIAL RATE LABOR RATE TOTAL Based on Scheme 2 and thereafter prorated for Concept 1A#1 - 1D#4 Mobilization/demobilization 1 LOT 4,000 8,000 12,000 Supervision 3 MOS -00 0 6000.00 18,000 6000.00 18,000 Home office 3 MOS 00 0 1500.00 4,500 1500.00 "4,500 Site, office and temporary utilities 3 MOS 750.00 2,250 2000.00 6,000 2750.00 8,250 Freight 32 TONS -00 0 750.00 24,000 750.00 24,000 Per diem 286 MD 35.00 10,010 40.00 11,440 75.00 21,450 Travel time (4 crew x 2 RT x 12 hrs) 96 HRS -00 0 45.00 4,320 45.00 4,320 Air fares (4 crew x 2 RT) 8 RT -00 0 1200.00 9,600 1200.00 9,600 Equipment 1 LOT 8,000 2,000 10,000 Progress photos, meetings, etc. 1 LOT 500 1,500 2,000 WASTE HEAT RECOVERY SYSTEM PAGE 26 SAND POINT, ALASKA CONSTRUCTION COST STUDY JANUARY 24, 1990 GENERAL CONDITIONS, OVERHEAD AND PROFIT UNIT UNIT UNIT QUANTITY UNIT RATE MATERTAL RATE LABOR RATE TOTAL Based on Scheme 2 and thereafter prorated for Concept lA#1 - 1D#4 Periodic and final cleaning 3 MOS 150.00 450 300.00 900 450.00 1,350 SUBTOTAL 115,470 ‘irae + 115,470) Profit (Direct Works + Above) 10 % 42,476 SUBTOTAL 157,946 Bonds and risk and liability insurances (309,288 + ) (Direct Works + Above) 3,949 GCOHP % 161,895 x 100 309, 288 52.34% Raw Data POWER PLANT SAND POINT WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN JANUARY 26, 1990 Generators: Caterpillar 3412 650 KW Radiators: Not recorded Operating Conditions during site visit: Not recorded, avall. from SPE. Min. Return Temp to Generator: Not available. Engine Design Flow and Max External Pressure: Not available. USER BUILDINGS Sand Point Electric Admin. Building Boller: 1 ea. Valiant OPF-102-W-10, 529 MBH Boller Supply Setpoint Temp.: 180 Actual Boiler Return/Supply Temp.: Circ Pump(s): P-1 Grundfos UP 26-96F Circ Pump(s) Pressure: Not available. Gas Station Boiler(s): Well McLean P366 HEA HT, 94.8 MBH Boller Supply Setpoint Temp.: Not recorded. Actual Boiler Return/Supply Temp.: Not available, Circ Pump(s): CP-1 Taco Bronze Circulator, 007 BFD IN Circ Pump(s) Pressure: Not available. SAND POINT WASTE HEAT RECOVERY REPORT AND CONCEPT DESIGN Store Furnace: 1 ea. Dayton 3F271, 175 MBH Boiler Supply Setpoint Temp.: N/A School Boiler(s): 2 each Weil McLean BI-886-SW, 1391 MBH Boller Supply Setpoint Temp.: 185 Actual Boiler Return/Supply Temp.: Not recorded. Circ Pump(s): P-1: Grundfos UP50-160 P-2; Grundfos UP50-160 P-3; Grundfos UP50-160 Circ Pump(s) Pressure: Not available. Post Office Furnace: 2 each Lennox 012R-140-1, 140 MBH JANUARY 26, 1990