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Anvik Report & Concept Design Waste Heat Recovery 1991
REPORT AND CONCEPT DESIGN ANVIK WASTE HEAT RECOVERY February 27, 1991 SOA Frank Moolin & Associates, Inc. A Subsidiary of ENSERCH Alaska Services, Inc. mM ANVIK WASTE-HEAT RECOVERY REPORT AND CONCEPT DESIGN FEBRUARY 27, 1991 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 5.1 School 5.2 Community Buildings 532.1 Washateria City Building/Community Center Ingalik Corporation Building Post Office anu Mrmr FWP 6.0 RIGHT-OF -WAY/EASEMENT 7.0 CONCEPT DESIGN 8.0 ECONOMIC DATA 9.0 FAILURE ANALYSIS 10.0 CONCLUSIONS AND RECOMMENDATIONS APPENDICES 1. Calculations 2. Cost Estimates 3. Raw Data NVIK LIST OF FIGURES AND TABLES Power Plan Photographs Anvik Power Generation Data School Furnace School Fuel Data City Building Boiler Washateria Boiler and Hot Water Heater Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Graph 1 Graph 2 l WOONANHWP 10 12 13 - Legend - System Site Plan - Power Plant Floor Plan - Power Plant Cooling Schematic - Scenario #1 - System Schematic - School Floor Plan - School System Schematic - Scenario #2 - System Schematic - Washateria Floor Plan - Washateria System Schematic - City Building/Community Center Floor Plan - City Building/Community Center System Schematic - Typical Trench Section ee 0 we te to WHR EE EE EEE EH ODDAWEW KHOWDNDGEWNHHO CO 0 NS NN NN NN NNN NNN OOo BS 1.0 ANVIK ANVIK WASTE-HEAT RECOVERY REPORT AND CONCEPT DESIGN FEBRUARY 27, 1991 EXECUTIVE SUMMARY A potential for waste-heat recovery exists in the community of Anvik. Anvik is a community with a seasonal population varying from approximately 70 to 150 people, located at the confluence of the Yukon and Anvik Rivers. The heat rejected by the coolant of the diesel-powered engine generator sets owned and operated by Alaska Village Electrical Cooperative (AVEC) could be recovered and circulated to heat portions of the community. The AVEC power plant is currently located next to the Anvik River, within the river’s flood plain, and is subject to spring flooding. AVEC is planning to move its power plant out of the flood plain, but a new location and timetable have not been determined. There are two possible locations for the power plant that are favorable in terms of waste-heat recovery considerations. The first location is near the school. The school alone can consume virtually all of the waste heat available. The second location is near the Washeteria. The community buildings near this location can also consume virtually all of the waste heat available. These buildings include the Washateria, City Building/Community Center, Ingalik Corporation Building, and the Post Office. These two locations and building(s) served from these locations form the basis for the scenarios considered. Scenario #1 - The Power Plant is sited by the school and waste heat is piped to the school only. The advantages are that one user could use the majority of the waste heat and that, with only one user connection, the waste-heat system would be simplified. During much of the year the school could also consume more waste heat if more became available. The disadvantage is the additional expense involved in moving the plant to this site. Total Estimated Project Cost $475,700 Total Fuel Oil Savings 5,400 Gallons Total Annual Fuel Cost Savings Sli o0o (O&M Cost $ 3,600) Scenario #2 - The Power Plant is sited near the Washeteria and waste heat is piped to the Washateria and City Building/Community Center. The advantages are the potential for expanding the waste-heat system in the future and a lower cost for relocating the power plant. Disadvantages include the increased cost and complexity of serving multiple small users. Estimated Project Cost $392,000 Total Fuel Oil Savings 5,800 Gallons Total Annual Fuel Cost Savings $ 7,900 (0&M Cost $ 3,300) lL ed ANVIK ANVIK WASTE-HEAT RECOVERY REPORT AND CONCEPT DESIGN FEBRUARY 27, 1991 Scenario #3 expands the Scenario #2 system by extending a loop east past the City Building/Community Center to serve the Ingalik Corporation Building and Post Office. There is not enough waste heat, after system heat loss is subtracted, to serve Scenario #3 in addition to the Scenario #2 users. Scenario #3 is presented here only to the extent required to identify its potential for possible future expansion. No cost estimate was performed for Scenario #3. Decision Criteria Economic and public policy decisions will be required to choose between the various options. 1.1.1 Proximity The cost of running the waste-heat recovery piping limit this project to the building(s) in the immediate area of the relocated power plant. The location of the power plant is an integral factor. 1.1.2 Potential Future Users and Expansion At the time of the site investigation (February 1990), there were no plans for significant adatom of any facilities in Anvik. 1.1.3. Community Priorities The Mayor and City Council members, who were interviewed, indicated a preference for using waste heat in the community buildings. They were supportive of using waste heat at the school. A summary of the construction cost estimates along with design and SIOH costs is included in the Cost Estimate Appendix for each alternative and scenario. 2.0 2.1 2.2 263 ANVIK ANVIK WASTE-HEAT RECOVERY REPORT AND CONCEPT DESIGN FEBRUARY 27, 1991 INTRODUCTION Objective The objective of the field investigation and report is to ascertain the viability of waste-heat recovery use in the community of Anvik. It has been established that there is both a potential source and use for the heat energy, and that the community is interested in pursuing this project. Methodology The investigation and analysis were approached as follows: Ls Presite Visit: Information collected consisted of telephone contact with community officials, owners/operators of potential user buildings, power plant operators, and gathering land use/ownership information. 2 Meeting with Utility: An informational meeting was held with Alaska Village Electric Cooperative (AVEC). AVEC personnel made available their information on the Anvik Power Plant and discussed their requirements for waste- heat recovery installation and for relocating the power plant. J Field Investigation: Coordination with building owner/ operators and local elected officials was performed. Photographs were taken of the potential user buildings as well as the boiler/furnace equipment. The power plant was also photographed. Available fuel costs and heating records were obtained from each interested potential recipient of waste heat. (In general this information was not available.) 4. Office Analysis: Additional information regarding weather and historical trends were collected. Where specific fuel use records were not available, approximate heat loss calculation were made to estimate fuel use. This information was used to produced a model to predict the system performance and the amount of energy recovered. Ds Report Preparation: A draft report was prepared for the prospective clients prior to final report preparation to ascertain correctness of assumptions and obtain approval of the approach taken. Community Description Anvik is a community with a population of approximately 70 people during the winter and up to 150 during the summer. It is located at the confluence of the Yukon and Anvik Rivers, 34 miles north of Holy Cross east of the Nulato Hills. The community is largely supported by fishing and subsistence activities. Fuel cost at 2-1 2.4 ANVIK ANVIK WASTE-HEAT RECOVERY REPORT AND CONCEPT DESIGN FEBRUARY 27, 1991 Anvik varied from $1.15 for the School to $1.65 per gallon for small users at the time of the site visit. The composite weighted average was $1.35 per gallon. Applicable Codes and Regulations The editions most recently adopted by the State of Alaska (1985 for all except as noted) of the following codes and regulations have been used in the preparation of the concept design. These are listed below: Uniform Plumbing Code (UPC-1979) Uniform Mechanical Code (UMC) Uniform Building Code (UBC) Uniform Fire Code (UFC) National Electrical Code (NEC-1990 - Pending adoption) National Fire Protection Association (NFPA) 3.0 ANVIK ANVIK WASTE-HEAT RECOVERY REPORT AND CONCEPT DESIGN FEBRUARY 27, 1991 DESCRIPTION OF SITE VISIT Two engineers from Frank Moolin & Associates, Inc. visited Anvik on February 17, 1990. They toured every facility listed in this report and obtained available copies of fuel usage records and copied or sketched floor plans and piping diagrams. Contacts: Paula Maillelle - 663-6328 - City Council Fred Jones - 663-6336 - Power Plant Operator Mike Parson - 663-6348 - School Principal Paul Maillelle - 663-6325 - Post Office 3-1 4.0 4.1 a) ANVIK ANVIK WASTE-HEAT RECOVERY REPORT AND CONCEPT DESIGN FEBRUARY 27, 1991 POWER PLANT DESCRIPTION Narrative Description The power plant is housed in a 16’ by 36’ metal skinned building. Power is generated by three (3) Allis Chalmers generators with approximate prime power capability as follows: Gen #1 - Model 11000 - 120kWh Gen #2 - Model 3500 - 60kWh Gen #3 - Model 2900 - 50kWh This power plant is the cleanest and reputedly one of the best run plants in the AVEC system. The generators use number 1 fuel oil year round. Cooling for the plant consists of a skid mounted internal radiator on each engine. AVEC is desirous of making all the radiators external as part of the waste-heat recovery modifications. However, since only one gen-set normally operates, only two common radiators are sufficient. As part of the waste heat modifications, it is proposed that the gen-sets be manifolded together and the existing radiators removed and replaced with two common external horizontal core radiators. AVEC has considerable experience with waste heat recovery and has developed requirements for their plants. Features of waste-heat recovery installations as required by AVEC include: - dual mechanical building ventilation cooling systems - welded piping (no grooved joint) - lug style butterfly or gate valves (bolted both sides) - variable frequency drives on horizontal core external radiators - 3/4" - 1" bypass around AMOT valve to keep radiators warm - nonbladder type common expansion tank - standby gen-sets kept warm by auxiliary electric pumps - full pipe size AMOT valves (less than manufacturer’s recommended 2 psi pressure drop) - separate heat exchanger and secondary system for plant waste-heat use - main waste-heat exchanger and secondary components placed outside power plant in enclosed platform. At Anvik, none of these features are existing. Adding them makes the cost of this waste installation relatively high. This high cost of installation is further increased by the cost of relocating the power plant. Relocation of the Power Plant Because of recent flooding, AVEC is interested in relocating this plant to higher ground. The most attractive locations appear to be either near the school or near the Washateria. The land ownership of the selected site will have to be ascertained and dealt with and some attention to sound attenuation will be required (land ownership is discussed in Section 7). oa 4.3 4.4 4.5 ANVIK ANVIK WASTE-HEAT RECOVERY REPORT AND CONCEPT DESIGN FEBRUARY 27, 1991 Either area would be near present power distribution lines and one of the two barge fuel fill lines. The fuel fill line to the school is reported to terminate in shallow water on the Yukon river and to be very slow in transferring fuel. A new fuel transfer pump is on site but has not yet been hooked up. A rigid skid could be constructed for moving the power plant, and the power plant could be skidded to its new location. There are several crawler tractors in the village capable of pulling this load. If the power plant is taken to the school site, it may be necessary to use a winch or deadmen and a pulley system to pull it up the hill to the school. Relocation of the power plant will additionally require relocation of the plant fuel tank farm. Relocation of the tank farm will additionally require the installation of a dike and liner system for fuel containment to comply with EPA regulations. Floor Plan and Schematics See the Figures 3 and 4 for a simple floor plan and schematics of the system (located in Section 7). Photographs See the attached copies of the original color photographs of the power plant interior. Load information Attached table 1 contains the utility load data for 1988 and 1989. i i waked Anvik Power Plant Interior Frank Moolin & Associates, Inc. ANVIK POWER GENERATION AVERAGE LOAD (KW) AVERAGE ANNUAL 314,789 eee ener 37,842 Notes: 1) Average load is calculated from KWH production divided by hours in month. 2) Min. load is estimated as 1/2 of average load. 2/7/91 5.0 ANVIK ANVIK WASTE-HEAT RECOVERY REPORT AND CONCEPT DESIGN FEBRUARY 27, 1991 POTENTIAL WASTE-HEAT USER BUILDING DESCRIPTIONS During the site visit, all major buildings within a reasonable distance of the alternative new power plant sites were considered. The buildings were visited and information about them gathered. The information collected is presented below. Note: Figures used for the fuel consumption of buildings under consideration for waste-heat usage are based on _ incomplete records and estimates by local officials. No fuel data was available on a monthly basis. All fuel consumption figures are assumptions based on owner-provided part-year fuel figures in the case of the school and verbal estimates for the other buildings. Heat loss and annual degree-day calculations were used to check the accuracy of the reported fuel consumption and adjustments were made as noted. Boil ANVIK ANVIK WASTE-HEAT RECOVERY REPORT AND CONCEPT DESIGN FEBRUARY 27, 1991 School The Anvik school is a well insulated wood frame building of approximately 8,300 square feet, heated by two (2) horizontal oil fired hot air furnaces, Jackson-Church Flexaire SDF-40, each with a 400,000 Btu/hr heating capacity. The domestic hot water supply is provided by an oil-fired heater with a rated output of 415,000 Btu/hr. The preferred method of waste-heat recovery in this building is a heating coil in the return air duct of each furnace and a double-wall heat exchanger for domestic hot water. If the power plant is cited near the school, the piping run should be approximately 290 feet (one way). This facility reportedly uses about approximately 10,000 gallons of fuel per year and 11,000 gallons with the cold winter of 1988- 89. Part-year data was also reported. However, when the part- year data is projected out for a full year, it indicates approximately 7,700 gallons of fuel use. The part year data overlaps and is not conclusive. Approximate heat loss calculations indicate that the 7,700 gallon’ figure’ is conservative. In order to be conservative, the 7,700 gallon figure has been used for fuel savings calculations. Actual fuel savings potential may be higher. Anvik School Furnace Frank Moolin & Associates, Inc. Anvik: SCHOOL HEATING FUEL CONSUMPTION DATA NUMBER OF DAYS DAILY CONSUMPTION (Gal) HEATING DEGREE AVERAGE MONTHLY CONSUMPTION 3,035) 4,869) TOTAL FUEL DELIVERED TICE IIL 4,869 230! 21.17 Note 1) The only fuel use information available for the year is as follows: a) 1,834 gallons reported for period of July 1 to Nov 10. b) 3,035 gallons reported for period of Sept to Dec 10. c) 10,000 gallons total reported for typical year (11,000 gallons for school year with cold winter of 1988/89). 2) For purposes of this report, 7,700 gallons per year has been used to be conservative (see building narrative). 2/7/91 ANNUALIZED AVERAGE CONSUMPTION ANVIK WASTE-HEAT RECOVERY REPORT AND CONCEPT DESIGN FEBRUARY 27, 1991 S22 City Buildings The piping distances for the following buildings assume that the power plant is sited near the Washateria. ANVIK 5-5 Anvik City Building Boiler ANVIK Brel ANVIK WASTE-HEAT RECOVERY REPORT AND CONCEPT DESIGN FEBRUARY 27, 1991 Washateria A well insulated paneled wood-frame building of approximately 1,300 square feet heat ed by two (2) oil- fired boilers, Peerless Boiler JO-5PFH-WOP, each with a heating capacity of 204,000 Btu/hr. The boiler-heated water is piped through heat exchangers to heat water for washing and air for drying. The preferred method of waste-heat recovery in this facility is a heat exchanger in the boiler hot water return line. This facility is located approximately 40 feet from the assumed new power plant site and will require approximately 200 feet of waste-heat piping (one way). City fuel use, which includes the Washateria, City Building/Community Center, and vehicle use, is reported to be approximately 6,500 gallons per year. Of this the vehicle use is reported to be approximately 500 gallons per year. The City Building/Community Center fuel usage was estimated as 1,800 gallons (see below). The remaining 4,200 gallons has been credited to the Washateria for fuel savings calculations, which is in the range of use of similar Washeterias. The building heating is estimated to be 1,000 gallons per year, based on a heat loss approximation calculation. These calculations assume that the remaining 3,200 gallons of fuel are used for heating water and dryer air and that annual water operating usage is constant. 4 lliggs “Zig Me Anvik Washateria Boilers Anvik Washateria Hot Water Heater ANVIK ANVIK WASTE-HEAT RECOVERY REPORT AND CONCEPT DESIGN FEBRUARY 27, 1991 5.2.2 City Building/Community Center The two-story log-wood frame structure of approximately 3,600 square feet is heated by an oil-fired boiler, Weil- McLain P-666HE-WT, with a 180,000 Btu/hr heating capacity. An electric domestic hot-water heater is used. This building is used for community meetings. No specific fuel use information was available for this building. The fuel usage was estimated to be 1,800 gallons per year, based on a heat loss approximation calculation. The preferred method of waste-heat recovery in this facility is a heat exchanger in the boiler hot water return line. This facility is located approximately 120 feet from the assumed new power plant location and will require an addition 40 feet of waste-heat piping (one way) from the Washateria. - ANVIK 5.2.3 ANVIK WASTE-HEAT RECOVERY REPORT AND CONCEPT DESIGN FEBRUARY 27, 1991 Ingalik Corporation Building The single-story wood-frame building of approximately 1,500 square feet is heated by an oil-fired hot-air furnace, Lear-Siegler BOH96, with a heating capacity of 96,000 Btu/hr capacity and with an electric domestic hot- water heater. There are some tentative plans to put a basement under this building. The preferred method of waste-heat recovery in this building is a heating coil in the furnace return air duct. This facility is located approximately 420 feet from the assumed new power plant location and will require an addition 500 feet of waste- heat piping (one way) from the City Building/Community Center. This facility reportedly uses about 1,500 gallons of fuel per year. However, this appears to be excessive when compared to heat-loss approximation calculations of 1,040 gallons per year. In order to be conservative, the 1,040 gallon figure has been used for fuel savings calculations. 5 - 10 ANVIK ANVIK WASTE-HEAT RECOVERY REPORT AND CONCEPT DESIGN FEBRUARY 27, 1991 5.2.4 Post Office The Post Office is a modular wood-frame building of approximately 480 square feet with two (2) fuel oil space heaters of approximately 40,000 Btu/hr. This is the only building considered that is not owned by the village, the local corporation, or the school district. The preferred method of waste-heat recovery in this building is a single cabinet unit heater. The fuel usage was estimated by the operator to be 600 gallons per year. This facility is located approximately 470 feet from the assumed new power plant location and will require an addition 250 feet of waste-heat piping (one way) from the Ingalik Corporation Building. Bo 6.0 ANVIK ANVIK WASTE-HEAT RECOVERY REPORT AND CONCEPT DESIGN FEBRUARY 27, 1991 RIGHT -OF -WAY/EASEMENT If the power plant is relocated near or adjacent to the school, there will be no right-of-way problems in supplying waste heat to the school, since the school land will likely border the site. Land owners in the vicinity of the school include the school, State of Alaska (airport), and the Village Corporation. The location shown on the site plan adjacent to the school is reported to be Corporation land. All of the community buildings are located on community or corporation land, so there should be no right-of-way issues if the local leadership chooses to utilize waste-heat recovery. If the power plant is located adjacent to the Washateria, the situation is similiar. Land owners in the vicinity of the Washateria include the Protestant Episcopal Church and the Village Corporation. The location shown on the site plan adjacent to the Washateria is reported to be church land (the property line actually passes through both the Washateria and City Building/Community Center). Minor changes in power plant locations from those proposed should not affect the viability of the waste-heat project unless there are also changes to the piping lengths required. Increased piping lengths will add to the construction cost and will also reduce the amount of waste heat available to the users due to increased heat loss. In the case of locating of the power plant near the school, it would be better to locate the plant on school property, which would actually reduce piping lengths. 7.0 Tel ANVIK ANVIK WASTE-HEAT RECOVERY REPORT AND CONCEPT DESIGN FEBRUARY 27, 1991 CONCEPT DESIGN Due to AVEC’s intension of moving the power plant from the Anvik River’s flood plain, installation of a waste-heat system in the area of the current power plant site does not make sense. However, since a new location and timetable have not been determined by AVEC, the relocation of the power plant is considered and included here. There are two probable locations for the new power plant from a heat recovery stance. The final location of the plant will determine the feasibility of the proposed scenarios, or the requirement to use waste heat for a specific scenario may dictate the location of the power plant. System Narrative The first scenario will be the supply of waste heat to the School. There are several locations to chose from in siting the power plant near the School. Airport clearance criteria, land ownership, and fuel delivery systems must be looked at more closely in the final site selection. The site shown on the site plan is on Corporation land near the Yukon River fuel distribution line. It is also located at a reasonable distance from existing structures for noise attenuation reasons. The school would be the target for the waste heat under this scenario. In the second scenario, the power plant would be located in the vicinity of the Washeteria. The location in this scenario would facilitate supply of waste heat to the community buildings shown on the site plan. The existing Anvik River fuel distribution line would have to be extended to the new site, and sound attenuation of the generators would have to be incorporated into the new power plant since the site is near a number of residences. A third scenario also has the power plant located in the vicinity of the Washateria. This scenario is essentially an expansion of the Scenario #2 waste-heat system to serve additional community buildings. The present quantity of waste heat available does not make this option currently viable. It is presented here for the possibility of future expansion as more waste heat becomes available, either through electrical load growth or through changes in the waste-heat system operations, as discussed below. 7.1.1 Scenario #1: Served buildings include: SCHOOL Benefits of this scenario include using the majority of the waste heat available currently, simplifying the waste- heat system since only one user is involved, and the potential for increased future heat recovery since the school could use more waste heat during parts of the year than is currently available. Disadvantages include the 7-1 BCA ANVIK ANVIK WASTE-HEAT RECOVERY REPORT AND CONCEPT DESIGN FEBRUARY 27, 1991 higher cost of relocation of the power plant, possible remedial noise attenuation requirements and a _ more difficult fuel transfer process. 7.1.2 Scenario #2: Served buildings include: WASHATERIA CITY BUILDING/COMMUNITY CENTER Benefits of this scenario include lower cost due to short piping runs and a shorter power plant move, and use of existing village tank farm fill line. This scenario would use the largest portion of currently available waste heat and allows for future expansion. 7.1.2 Scenario #3: Served buildings include: WASHATERIA CITY BUILDING/COMMUNITY CENTER INGALIK CORPORATION BUILDING POST OFFICE This scenario is presented here only to identify its potential for possible future expansion. There is currently not enough waste heat to serve scenario #3. Primary and Secondary Piping Jacket water piping will be valved to recover heat from whichever gen-set is on line. Automatic contral valves will bypass coolant to the external radiators to maintain coolant temperature as required. See Section 4 for a discussion of proposed modifications to the power plant. One of the features of the system required by AVEC is the bypassing of a portion of the coolant around the Amot valve to heat the radiators at all times. At Anvik, due to the relatively smal] amount of waste heat generated, the percentage of waste heat Jost through this procedure is high. If the plant operations were changed, the savings would directly result in additional waste heat supplied to the users and fuel saved. In all of the scenarios considered, more waste heat is generated than can be used. However, in all of the scenarios, after the system losses are subtracted, not enough heat remains to satisfy the buildings’ needs during most of the year. In keeping with the previous AEA recommendations, the current concept design includes one flat plate heat exchanger at the power plant for potential waste heat users outside of the Power Plant. However, per AVEC requirements, a separate heat exchanger provides heat to the 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 the low pressure drop heat exchangers. Tete 7.3 7.4 7.5 ANVIK ANVIK WASTE-HEAT RECOVERY REPORT AND CONCEPT DESIGN FEBRUARY 27, 1991 On the secondary loop, a main circulation pump will be designed for the pressure drop of the furthest connected building. In addition, an air separator, an expansion tank, and a glycol make- up system is required. The pump’s design flow rate will be for the maximum heat required 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 Figures 5 and 8 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. Building Piping All connections to the user’s buildings will be at a single heat exchange point either by using flat plate heat exchangers to connect to the boiler systems, by single unit heaters, or by return air coils where furnaces are existing. This will limit problems associated with damage of distribution piping and interconnection of systems. One exception to this is the school, where there are two seperate furnaces that each require a return air coil and an additional heat exchanger will be used for domestic water. This will be of the double-wall type to provide additional separation between the distribution system and potable water. 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. The simplest method is to not connect more users than the system can normally provide waste heat for. That is not possible at Anvik since the school alone can use more waste heat than can be provided during parts of the year. 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. Reducing system heat loss, as discussed above, would provide the simplest solution. Site Plan/Routing The routing will be as shown on Figure 2. Generator Room Plans/Schematics See the attached Figures 3 and 4 for the design concept for changes to the power plant. = 7.6 Ul 7.8 ANVIK ANVIK WASTE-HEAT RECOVERY REPORT AND CONCEPT DESIGN FEBRUARY 27, 1991 User Building Plan/Schematics See the attached Figures 6 through 7 and 9 through 16 for proposed changes to each of the potential user buildings. Arctic Pipe/Trench Section Soils information was found in the Sanitation Facility (Washateria) plans during the site visit. The sole log shows F-4 silts to the bottom of the hole (24’). A log on the school plans show silt with high organics to a depth of 40’. The power plant operator said that the waterwell was down to a depth of 124’ before the bottom of the silt was found. He also said that he didn’t know of any permafrost, which is supported by the growth of large white spruce and birch trees throughout the area. Some settlement has occured in several of the buildings in town but the settlements are small and are probably a result of consolidation of the silts and not due to thaw settlement. Based on this information, direct burial is the recommended method of waste-heat recovery pipe installation. However, further data on the soils should be obtained before installation is made. A cross section of the anticipated trench and arctic pipe configuration is shown in the Figure 17. 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 psi. Gaskets and materials shall be compatible with glycol and with hydrocarbons on engine primary circuits. Isolation valves on engine primary circuits may be lug-style butterfly type. Piping: Piping inside buildings shall be type "L" copper or steel schedule 40 with dielectric unions at connection points of dissimilar metals. Steel pipe will be welded. ANVIK 15120 15250 15750 ANVIK WASTE-HEAT RECOVERY REPORT AND CONCEPT DESIGN FEBRUARY 27, 1991 ARCTIC PIPE Arctic Pipe: Pressure pipe shall be schedule 40 steel. Insulation shall be foamed polyurethane with .25-inch maximum voids. Thickness of insulation to be minimum of two inches. Jacketing shall be steel or high density polyethylene. The arctic pipe system shall include kits or fittings for take-off connections to main line that provide water-tight seal. MECHANICAL INSULATION Piping insulation: Pipe insulation shall be fiberglass with an all-service jacket. Minimum insulation thickness shall be 1-1/2 inches. HEAT TRANSFER Heat Exchangers: Heat exchangers shall be plate and frame type with minimum 20-gauge stainless steel plates, painted steel frame with head and end support, top carrying bar, bottom guiding bar, and ASME rating. Ports shall be international pipe thread or flanged. Capacity shall be as specified. Acceptable manufacturers are Bell & Gossett, APV, Tranter, and Alfa Laval. Double-wall Heat Exchangers: Potable water heat exchangers shall have two walls separating the fluids with a vented air space in between. They shall be ASME rated, tube within a tube type such as Bell & Gossett Diamondback or nested welded plate type such as Tranter Double Wall Design. Air Coils: Coils shall have minimum 5/8-inch seamless copper tubes mechanically expanded into aluminum fins. Header connections brazed or welded. Casing shall be double flanged minimum 16-gauge galvanized steel to provide rigid support for coil. Flanges for slip-and- drive fasteners on duct coils. Cabinet Unit Heaters: Floor mounted inverted-flow heaters shall have multispeed control, minimum 1/2-inch copper coil tubes mechanically expanded into aluminum fins. Cabinet 18-gauge with 16-gauge front panel, galvanized, and primed with top front inlet and bottom front outlet stamped steel integral grilles. Provide leveling legs. ANVIK 15900 16000 ANVIK WASTE-HEAT RECOVERY REPORT AND CONCEPT DESIGN FEBRUARY 27, 1991 CONTROLS & INSTRUMENTATION Controls will be electric with the exception of AMOT valves in the Power Plant, which are self-contained. Flow of fluid in the secondary system is not automatically controlled, with the exception of the return air coils in the school. Since the fans run continuously for ventilation, two-stage wall thermostats first open the control valve and secondly start the burner if necessary. In buildings, unit heater fans are cycled by wall thermostats. ELECTRICAL All electric equipment and installation shall comply with the National Electric Code specified. ies) ANVIK Major Equipment List TiO) stl Scenario #1 Heating Elements Location School Furnace #1 School Furnace #2 School Hot Water Htr. Generator Plant #1 Generator Plant #2 Pumps Service Gen. Plant Secondary Engine Preheat Buried Piping Size a" ANVIK WASTE-HEAT RECOVERY REPORT AND CONCEPT DESIGN FEBRUARY 27, 1991 Capacity (Hot Side) Item MBH GPM so TO 94 10 180 160 duct coil 94 10 180 160 duct coil 94 10 180 160 dbl wall ht. exch. 185 heat exchanger 43 heat exchanger GPM HD HP QTY 30 25 0.33) 2 LE 580 Note: Capacities, flows and temperature differentials are rounded off. ANVIK ok |r Heating Elements Pumps Buried Piping L393 Heating Elements Buried Piping Scenario #2 Location Washateria City Bldg./Comm. Ctr. Generator Plant #1 Generator Plant #2 Service Gen. Plant Secondary Engine #1 Preheat Size 1-1/4" 1-1/2" 2" Scenario #3 (additional Location Ingalik Corp. Bldg. Post Office Size 1 1-1/2" ANVIK WASTE-HEAT RECOVERY REPORT AND CONCEPT DESIGN FEBRUARY 27, 1991 Capacity (Hot Side) Item MBH GPM sOiTI TO 101 ll 180 160 heat exchanger 66 8 180 160 heat exchanger 227 185 heat exchanger 43 heat exchanger GPM HD HP QTY *27 20 Oe ZS iiline 5 5 0051/3 LF 260 120 340 future users - for reference only) Capacity (Hot Side) Item MBH GPM TI TO 38 3 180 160 duct coil 22 5 180 160 cab. unit heater LF 660 840 *Includes capacity for future Scenario #3 users. BALANCE/ISOLATION VALVE ISOLATION VALVE NC=NORMALLY CLOSED (ALL OTHERS NORMALLY OPEN) 2-WAY CONTROL VALVE 3-WAY CONTROL VALVE AMOT 3-WAY VALVE CHECK VALVE STRAINER CIRCULATING PUMP FLOW METER THERMOMETER TEMPERATURE SWITCH AIR SEPERATOR WITH AUTO AIR VENT FLOW ARROW PIPE DOWN PIPE UP NEW RETURN LINE NEW SUPPLY LINE EXISTING RETURN LINE EXISTING SUPPLY LINE NEW EQUIPMENT EXISTING EQUIPMENT PRIMARY (GENERATOR) PIPING SECONDARY (DISTRIBUTION) PIPING BUILDING PIPING NON ELECTRIC VALVE NON ELECTRIC TEMPERATURE SENSOR ae Frank Moolin & ; a aa Associates, Inc. LEGEND : 495 JOB_NO. ENGINEERING e@ DESIGN ® PROJECT MANAGEMENT REVISION: An Ebarco Serdces incorporated Engineering ond Construction Company AENSON _0 | 495LEGND.DWG 7-9 FIGURE 1 MADAME sssociates, nc. | SYSTEM SITE PLAN ENGINEERING @ DESIGN @ PROJECT MANAGEMENT ANVIK, AK 0 Benes Serdoes Incorpereted Engineering ond Construstion Compary 7 7 | Frank Moolin & POWER PLANT Associates, Inc. FLOOR PLAN Feel nacho) Narr sar ll ANVIK, AK 7-11 FIGURE 3 3” (EXCEPT WHERE NOTED) GEN. #1 AC 11000 WASTE HEAT — EXPANSION TANK HEAT es, AMOT VALVE AND GLYCOL ASSEMBLY MAKE-UP POWER PLANT HEAT EXCHANGER TO POWER PLANT TO WASTE HEAT USERS sha Frank Moolin & POWER PLANT Associates, Inc. COOLING SCHEMATIC Eee neon ANVIK, AK SCHOOL ba Frank Moolin & SCENARIO #1 Associates, Inc. SYSTEM SCHEMATIC fe ans era lescennes egpag eal eameas exes ANVIK, AK 7-13 FIGURE 5 PROPOSED PIPING UP TO MECHANICAL ROOM— *\ 9° 9° * NOTE: THE MECHANICAL ROOM IS ON THE SECOND FLOOR. THIS SPACE IS VERY TIGHT. bb. Frank Moolin & SCHOOL oare: 2/11/91 Associates, Inc. FLOOR PLAN 495 ENGINEERING e@ DESIGN @ PROJECT MANAGEMENT Ieee eee oe Gece coe ANVIK, AK REVO 0 495306AS.DWG 7-14 FIGURE 6 TO / FROM ARCTIC PIPE —>t— 1— ; i 1 1/4" H UT, <odiiii xe DOUBLE WALL ean HEAT EXCHANGER __ BURNER HOT (TYP.) WATER HEATER —_ SUPPLY AIR i Le — 1-1/4" HOT AIR FURNACE. (TYP.) oe AIR SUPPLY AIR Peo iF il 1-1/4 L__. fb4a Frank Moolin & SCHOOL Associates, Inc. SYSTEM SCHEMATIC Popes tas pallies bp lanesccrpsl ANVIK, AK 7-15 FIGURE 7 — POWER PLANT WASHATERIA CITY BUILDING 7 7, | Frank Moolin & SCENARIO #2 Associates, Inc. SYSTEM SCHEMATIC fedienedlashertaigetil daghedhgca teckel ANVIK, AK 7-16 FIGURE 8 oem BOILERS ai ZONE PUMPS PROPOSED SPACE FOR FUTURE EQUIPMENT i DOMESTIC HOT of [| SCALE: NONE Frank Moolin & WASHATERIA =| Renny Tana: 4A Associates, Inc. FLOOR PLAN CoP RG pes ENGINEERING @ DESIGN @ PROJECT MANAGEMENT hn EboncaSardces newrperated Engeerng ond Conebucton Company ANVIK, AK REWSION 495306SF.DWG 7-17 FIGURE 9 TO / FROM ARCTIC PIPE FROM HEATING ZONE FROM HEATING ZONE FROM DRYER AIR HEATER FROM DOMESTIC HOT WATER HEATER oe WwW o Zz < x. oO x< WwW S =x HEATING ¢ Deny (ep || OLE BOILER yyy Frank Moolin & WASHATERIA Associates, Inc. SYSTEM SCHEMATIC fen eas te oid eghengeal samenaindoey ANVIK, AK 7-18 FIGURE 10 DOMESTIC HOT WATER HEATER BOILER ue PROPOSED SPACE FOR FUTURE EQUIPMENT CITY BLDG. - FIRST FLOOR CITY BLDG. - SECOND FLOOR SCALE: NONE ba Frank Moolin & | CITY BLDG./COMMUNITY CENTER |» » oare:_ 2/11/91 Associates, Inc. FLOOR PLAN GIE eins lleaase Pipeeets:2 ve then belinda ened ANVIK, AK ___[revsom | 495306CH.OWG 7-19 FIGURE 11 TO / FROM ARCTIC PIPE a WwW o z < = Oo x< WwW ri = HEATING SUPPLY 5 = BBA 528 Mooiin & | CITY BLDG/COMMUNITY CENTER = fea Associates, Inc. SYSTEM SCHEMATIC Sens titiacap eat egg akan ANVIK, AK EXISTING \ GRADE BACKFILL WITH EXCAVATED NOMINAL 3° MATERIAL — COMPACT AS AS SPECIFIED DURING SPECIFIED SYSTEM FIANL DESIGN WASTE HEAT SUPPLY AND RETURN PIPES — ARCTIC PIPING (SIZES VARY AS SPECIFIED) BEDDING MATERIAL — EXCAVATED MATERIAL WITH 1” TOP SIZE | | 1/4" D MIN. 3” MIN. 44 Frank Moolin & | oare Associates, Inc. TYPICAL TRENCH SECTION a ENGINEERING e@ DESIGN @ PROJECT MANAGEMENT REVISION: An Ebosco Services incomorated Engineering and Construction Company 495TRNCH.DWG 7-21 FIGURE 13 ANVIK WASTE-HEAT RECOVERY REPORT AND CONCEPT DESIGN FEBRUARY 27, 1991 8.0 ECONOMIC DATA Economic Data in Appendix 2. ANVIK 8-1 9.0 9.1 ANVIK ANVIK WASTE-HEAT RECOVERY REPORT AND CONCEPT DESIGN FEBRUARY 27, 1991 FAILURE ANALYSIS Anvik is a least a full day away from resupply of parts out of Anchorage, and the delay might be several days longer if weather is bad. Although the heat recovery systems are relatively simple and straight forward mechanically, the system will require some maintenance and a knowledgeable person to trouble shoot the system. Lack of attention may render the system inoperative. It is also possible for inexperienced people to alter the system configuration by opening and closing valves or turning off pumps. Therefore, access to the system valves and controls must be limited to knowledgeable and responsible people. The control valves must work to maintain system temperatures and the proper functioning of these valves must be checked periodically. Reports on soil conditions indicate that buried pipes should not be damaged by soil heaving or settlement if the pipes are buried correctly. The system is susceptible to mechanical damage from being hit by equipment and machinery that is used for excavation. Subsurface leaks or spills have a significant potential for soil contamination. Because of the cold temperatures, the waste-heat recovery system must be filled and maintained with 60 percent glycol. Water without glycol must not be introduced into the system. All waste-heat recovery recipients must keep their respective building heating systems on line and in proper functioning condition to heat the building in case the waste-heat recovery system fails or if the power plant is not rejecting enough heat to its cooling system. Subsurface Pipe Rupture 9.1.1 Worst Case - Pipe fails underground from subsidence, earthquake, corrosion, fatigue, or material fault. Glycol/water mixture seeps unnoticed into the formation or under the snow. Fluid loss continues until the pump loses suction. This problem could go unnoticed until: 1. A power plant operator notices the inlet and outlet temperatures on the primary side of the waste-heat recovery heat exchanger are nearly identical; or a. A waste-heat user determines that his building is too cold or his buildings’ heating system is running and that the waste-heat recovery system is inoperative; or Orie 933 ANVIK ANVIK WASTE-HEAT RECOVERY REPORT AND CONCEPT DESIGN FEBRUARY 27, 1991 Sie Some operator or maintenance person notices the secondary temperature indicating devices are not registering proper temperatures or he notices the circulating pump(s) are running dry; or 4. Someone notices glycol surfacing somewhere; or Si. A low pressure alarm is indicated. A further complication could arise if other controls failed concurrently. If the secondary system lost fluid and then the control valve failed to bypass water to the generator radiators, then the engines would trip off on overload producing a village blackout. A further problem could arise if the engine high temperature shutdowns failed and the engine ran until overtemperature failure. 9.1.2 Repair The ruptured pipe section must be located and either repaired, replaced or bypassed. Unless the glycol surfaces, the location of the rupture may be difficult to find. Excavation will almost always be required and this may involve steam thawing the soil if frozen. The alternative of bypassing the failed section with temporary surface waste-heat piping may be necessary. For this alternative piping should be stockpiled. If these pipe supplies must be flown out of Anchorage, the delay could be as follows: Locating the leak, mobilizing excavating equipment, excavating leak site 2-3 days, locating pipe, ordering pipe, arranging payment and shipping 1 day, shipping 2 days, and installation of new pipe or by-pass 2-days. Total 6-7 days downtime at best. This repair is impractical in most of the winter and would be deferred until spring. The generators could function uninterrupted. 9.1.3 Freezing/Earthquake Damage/Differential Settlement - Care must be taken to minimize potential piping damage due to differential earth movement. The subsurface piping must be properly bedded and allowances made for known transition zones. Above Ground Pipe Failure Leaking pipe or connection located, isolated, repaired, cleanup, 2-10 hours’ downtime at best. Weather delays could make this considerably longer. Cleanup of Spilled Glycol Glycol cleanup from facilities may be relatively easy but glycol is a health hazard and care must be taken to ensure that no one ingests the glycol mix. Glycol that spills on the ground or 9-2 9.4 95 9.6 9.7 ANVIK ANVIK WASTE-HEAT RECOVERY REPORT AND CONCEPT DESIGN FEBRUARY 27, 1991 subsurface must be cleaned up before it enters the ground water or surface run off. The glycol must not contaminate wells, streams, lakes, or salt water. Vibration, Thermal, and Corrosion Damage to Piping 9.4.1 Vibration Insulation Devices - Must protect piping from vibration transmission particularly adjacent to vibration exciters like the diesel engines. Inadequate vibration isolation will produce cracked, broken, and leaking piping and gaskets. 9.4.2 Thermal Expansion - Joints must be installed to allow for pipe growth from thermal expansion. Inadequate provision for thermal growth will stress the system and result in strain on piping, pumps, and the heat exchangers. 9.4.3 Corrosion - Contaminates in the system or soils can accelerate the corrosion of the piping. Corrosion inhibitors may be required. Care must be utilized to avoid dissimilar piping materials that could accelerate the corrosion process. Particular attention must be paid to areas around welds and whenever there is a pressure drop in the system. Primary Heat Exchanger Failure Glycol leaks from heat exchanger - Operator finds leak, valves off heat exchanger and the gen-sets utilize radiators for cooling. Operators order new exchanger. If the exchanger is an off-the-shelf item, a new one could be on site in a week or 10 days. If not, it could take 10 weeks or more. Should this leak go unnoticed, gen-sets will shut down on low pressure or high temperature. The leaking area can be valved off immediately but the system must be recharged and air bled out before restarting the gen-sets. Downtime of gen-sets 2-3 hours. Secondary Heat Exchanger Failure Leaking or plugged secondary heat exchanger is identified, valved off, and bypassed. A replacement is ordered and the building is heated by the buildings heating plant. Down time 5 days to 6 weeks. Heat Exchanger Failure Modes 9.7.1 Mechanical Damage - Heat exchangers can be made to leak if damaged by dropping or by impacting them with power equipment, cranes, pipes, et cetera. Proper care must be exercised to limit exposure to mechanical damage. 9.7.2 Chemical Damage - The water/glycol fluid must be monitored to prohibit developing a corrosive mixture. Also particular attention must be paid to piping gaskets and 9-3 9.8 9.9 ANVIK ANVIK WASTE-HEAT RECOVERY REPORT AND CONCEPT DESIGN FEBRUARY 27, 1991 valve seat material to ensure that the materials are compatible with glycol. Dissimilar metals are to be avoided or insulated from each other. Water quality must be maintained to prevent scaling. Pump Failures The pumps are subject to thermally induced casing stress, seal failure, overheating, voltage fluctuations, and frequency droop. The pump alignment must be checked with the piping at operative temperature. The air circulation/cooling around the pumps must not be impaired. The pump must be protected by circuit breakers from low voltage, frequency droop, and overload. The pumps must be in parallel pairs and capable of individual isolation for replacement. The coolant in the system must not contain contaminants that will destroy the seals. Recharging the system must be done with contaminate-free water and glycol. When a pump fails from any one of a variety of causes, the stand- by pump is activated and the failed pump valved off and repaired/replaced. System down time 0-12 hours. Replacement pump replaced two hours to one week. Control Failures Controls must be protected from power fluctuations and mechanical damage. Unauthorized persons must be precluded from adjusting control set points. Authorized persons must be familiar with the system and the interrelationships of the components. In some cases it is possible for the waste-heat customers to overcool the waste-heat recovery secondary piping and thermally shock the heat exchanger. It is also possible to have the waste- heat customers actually heating the secondary loop coolant and then heating the generator coolant. These potential problems can be avoided by properly operating controls. Controls must be maintained and protected from corrosion and/or scaling. 10.0 ANVIK ANVIK WASTE-HEAT RECOVERY REPORT AND CONCEPT DESIGN FEBRUARY 27, 1991 CONCLUSIONS AND RECOMMENDATIONS The final economics will be completed by the Alaska Energy Authority so a definitive conclusion is not made at this time concerning the feasibility of a waste heat installation at Anvik. 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. To make this project more economically attractive on option would be to include this project with the construction of other waste heat systems in neighboring communities. This would help to reduce the mobilization charges. Shipping, travel and other supervision and management costs could also be combined and pro- rated for lower cost to each village. Economics are not the only yardstick by which this project should be measured. The political and social problems involved in our nations oi] supply should motivate us to actively seek out ways like this to reduce our oil consumption. Environmental costs are also present with the consumption of any fossil fuel, granted they are small but present. The communities enthusiasm to participate is an important factor in the final decision to go with the project or delay until the economic situation changes to a more favorable one. 19.- 1 Ol é \ ANVIK WASTE HEAT RECOVERY - GRAPH 1 HEAT AVAILABLE VS. HEAT REQUIRED BY MONTH 1200 -- + - eee ee eee ee eee ee eee eee eee eg 1000 } - ~~ - gpesn-- gee eee ee eee ee eee eee Lee HEAT AVAILABLE BOD) gig 28 tres isms citer 2 eins Nim Sow eresibils © subline she, 0 aicysi mS GS fisiis IS Snel Griesinnt a saibiisue Sym mills ol @ i 01 Siceuevicuinin HEATING FUEL .«., |) NSOR St _e wo’. ......... fe Np ee ee eee ee. equiv. 0 (GAL.) 400 foo eer creer tere ah: HEAT REQUIRED 200 fort rrr rre? 0 Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. MONTH OF THE YEAR @ AVAILABLE- © AVAILABLE- MI HEATREQD- (1) HEAT REQD- SCENARIO #1 SCENARIO #2 SCENARIO #1 SCENARIO #2 €- Ob ANVIK WASTE HEAT RECOVERY - GRAPH 2 HEATING FUEL DISPLACED BY MONTH 800 700 600 500 HEATING FUEL Equiv. 40° (GAL.) 300 200 400 Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. MONTH OF THE YEAR Mi SCENARIO #1 (1) SCENARIO #2 APPENDIX 1 CALCULATIONS ANVIK WASTE HEAT UTILIZATION SIMULATION WORK SHEET. BASIC PROJECT DATA: Location: Anvik - Scenario #1 Date: June 18, 1990 Annual pumping elec. cost: Annual other O&M cost: Construction cost estimate: Fuel high heat value: Average fuel cost: GENERATOR DATA: Heat rate at kw-load above: Heat rate at kw-load above: Heat rate at kw-load above: Heat rate at kw-load above: Heat rate at kw-load above: Heat rate at kw-load above: Heat rate at kw-load above: Heat rate at kw-load above: Heat rate at kw-load above: Heat rate at kw-load above: Heat rate at kw-load above: GENERATION DATA: Kwh/month: January 35,368 February 26,720 March 28,480 April 25,160 May 22,881 June 19,921 July 24,240 August 21,481 September 22,880 October 27,768 November 28,680 December 31,210 314789 BUILDING DATA: Fuel use, gal/mon. SCHOOL January 1154 February 995 March 963 April 662 May 375 June 186 July 139 August 200 September 333 October 642 November 888 December 1163 7700 Hig. Efficiency: 0.75 600 $/year. 3000 $/year. 475700 $ 132000 Btu/gallon 1.35 $/gallon 0 3612 Btu/kwh 10 3415 Btu/kwh 20 3245 Btu/kwh 30 3104 Btu/kwh 40 2991 Btu/kwh 50 2907 Btu/kwh 60 2850 Btu/kwh 70 2822 Btu/kwh 80 2822 Btu/kwh 90 2822 Btu/kwh 100 2822 Btu/kwh WEATHER DATA: HDD/Month: 2018 1740 1683 1157 656 325 243 350 583 1123 1552 2033 13463 wa a wa ANVIK_#1.XLS PROGRAM RESULTS: ‘Savings, year 0, fuel gallons: Savings, year 0, fuel cost: Annual O&M increase cost: Total Savings, year 0: Simple pay back time, years: SYSTEM LOSS DATA: Constant losses: Plant piping: 2400 Btu/hr. Subsurface piping: 12000 Btu/hr. Engine preheating: 4000 Btu/hr. Total constant: 18400 Btu/hr. Variable losses: Surface piping: 5 Btu/hr.xF Plant heating: 100 Btu/hr.xF Radiator losses: 100 Btu/hr.xF Wa wa na n/a na 0 °O 0 0 0 Page 1 Wa TOTAL 1154 995 963 662 375 186 139 642 1163 0.75 POWER PRODUCTION VARIATION: Assumed hourly variation: March 0.038 0.036 0.034 0.034 0.033 0.034 0.038 0.042 0.042 0.047 0.048 0.047 0.045 0.047 0.048 0.048 0.049 0.046 0.043 0.040 0.040 0.041 0.040 0,040 1,000 31 1683 28480 al Hour: January February 1 0.038 0.038 2 0.036 0.036 3 0.034 0.034 4 0.034 0.034 5 0.033 0.033 6 0.034 0.034 7 0.038 0.038 8 0.042 0.042 9 0.042 0.042 10 0.047 0.047 1 0.048 0.048 12 0.047 0.047 13 0.045 0.045 14 0.047 0.047 15 0.048 0.048 16 0.048 0.048 7 0.049 0.049 18 0.046 0.046 19 0.043 0.043 20 0.040 0.040 21 0.040 0.040 22 0.041 0.041 23 0.040 0.040 24 0.040 0,040 1.000 1.000 Days: 31 28 HDD: 2018 1740 Kwh: 35368 26720 HEAT DEMAND VARIATION: Assumed hourly variation: Hour: Winter” Summer* 1 0.039 0.039 2 0.038 0.038 3 0.038 0.038 4 0.038 0.038 5 0.038 0.038 6 0.039 0.039 7 0.041 0.041 8 0.043 0.043 9 0.044 0.044 10 0.044 0.044 1 0.044 0.044 12 0.044 0.044 13 0.045 0.045 14 0.044 0.044 15 0.043 0.043 16 0.043 0.043 17 0.043 0.043 18 0.043 0.043 19 0.043 0.043 20 0.043 0.043 21 0.042 0.042 22 0.042 0.042 23 0.040 0.040 24 0.039 0.039 1.000 1.000 * Winter: Nov. - Apr. * Summer: May - Oct. April 0.038 0.036 0.034 0.034 0.033 0.034 0.038 0.042 0.042 0.047 0.048 0.047 0.045 0.047 0.048 0.048 0.049 0.046 0.043 0.040 0.040 0.041 0.040 0.040 1.000 30 1157 25160 May 0.043 0.038 0.035 0.034 0.034 0.036 0.036 0.038 0.043 0.045 0.041 0.046 0.048 0.050 0.048 0.048 0.043 0.045 0.048 0.043 0.039 0.039 0.039 0.041 1.000 31 656 22881 ANVIK_#1.XLS June 0.043 0.038 0.035 0.034 0.034 0.036 0.036 0.038 0.043 0.045 0.041 0.046 0.048 0.050 0.048 0.048 0.043 0.045 0.048 0.043 0.039 0.039 0.039 0.041 1.000 30 325 19921 Page 2 July 0.043 0.038 0.035 0.034 0.034 0.036 0.036 0.038 0.043 0.045 0.041 0.046 0.048 0.050 0.048 0.048 0.043 0.045 0.048 0.043 0.039 0.039 0.039 0.041 1.000 31 243 24240 August 0.043 0.038 0.035 0.034 0.034 0.036 0.036 0.038 0.043 0.045 0.041 0.046 0.048 0.050 0.048 0.048 0.043 0.045 0.048 0.043 0.039 0.039 0.039 0.041 31 21481 Sept. 0.043 0.038 0.035 0.034 0.034 0.036 0.036 0.038 0.043 0.045 0.041 0.046 0.048 0.050 0.048 0.048 0.043 0.045 0.048 0.043 0.039 0.039 0.039 0.041 1.000 30 583 22880 October November December 0.043 0.038 0.038 0.038 0.036 0.036 0.035 0.034 0.034 0.034 0.034 0.034 0.034 0.033 0.033 0.036 0.034 0.034 0.036 0.038 0.038 0.038 0.042 0.042 0.043 0.042 0.042 0.045 0.047 0.047 0.041 0.048 0.048 0.046 0.047 0.047 0.048 0.045 0.045 0.050 0.047 0.047 0.048 0.048 0.048 0.048 0.048 0.048 0.043 0.049 0.049 0.045 0.046 0.046 0.048 0.043 0.043 0.043 0.040 0.040 0.039 0.040 0.040 0.039 0.041 0.041 0.039 0.040 0.040 0.041 0.040 0.040 1.000 1.000 1.000 31 30 31 1123 1552 2033 27768 28680 31210 13463 314789 ANVIK_#1.XLS HEAT GENERATED PER HOUR BY MONTH, BTU'S Hour: January February March April May June July August Sept. October November December 1 129687 112567 108371 98929 98522 92664 104373 96698 101801 119564 112769 118759 2 122861 106643 102667 93722 91023 81890 96429 85454 94053 105661 106834 112508 3 120414 100718 96963 92539 83837 75425 88817 78707 86628 97320 100899 106258 4 120414 100718 96963 92539 81442 73270 = 86279 76459 84153 94539 100899 106258 5 116873 97756 94111 89817 81442 73270 86279 76459 84153 94539 97931 103133 6 120414 100718 96963 92539 86232 77580 = 91354 80956 89103 100100 100899 106258 7 129687 112567 108371 98929 86232 77580 91354 80956 89103 100100 112769 118759 8 143338 119892 119778 109342 91023 81890 96429 985454 94053 105661 120107 126487 9 143338 119892 119778 109342 98522 92664 104373 96698 101801 119564 120107 126487 10 155862 134165 129163 122359 103104 96974 109228 96795 106536 120575 134406 141544 11. 159178 137020 131911 120419 93939 88354 99519 92200 97066 114003 137266 144556 12 155862 134165 129163 122359 105395 94819 111655 98946 108904 123255 134406 141544 13 149230 128456 123667 117153 109978 98942 116510 103248 113639 128614 128687 135521 14 155862 134165 129163 122359 114560 103065 121364 107551 118373 133973 134406 141544 15 159178 137020 131911 120419 109978 98942 116510 103248 113639 128614 137266 144556 16 159178 137020 131911 120419 109978 98942 116510 103248 113639 128614 137266 144556 17 162495 139874 134660 122927 98522 92664 104373 96698 101801 119564 140125 147568 18 152546 131310 126415 119756 103104 96974 109228 96795 106536 120575 131546 138533 19 146751 122747 122630 111946 109978 98942 116510 103248 113639 128614 122967 129498 20 136512 118492 114074 104136 98522 92664 104373 96698 101801 119564 118705 120463 21 136512 118492 114074 104136 93418 84045 94664 87703 96528 108442 118705 120463 22 139925 121454 116926 106739 93418 84045 94664 87703 96528 108442 121672 123475 23 «136512 118492 114074 104136 93418 84045 94664 87703 96528 108442 118705 120463 24 136512 118492 114074 104136 93939 88354 99519 92200 97066 114003 118705 120463 Day: 3389142 2902832 2807784 2601093 2329526 2128003 2454977 2211825 2407071 2742342 2908047 3039654 Month: 1.05E+08 81279307 87041316 78032801 72215292 63840096 76104294 68566583 72212135 85012603 87241412 94229274 9.71E+08 Equivalent Gallons: 1061 821 879 788 729 645 769 693 729 859 881 952 9806 HEAT LOST FROM SYSTEM PER HOUR BY MONTH, BTU'S Hour: January February March April May June July August Sept. October November December 1 42770 42164 40555 37331 33763 31646 31032 31740 33409 36851 40030 42869 2 42770 42164 40555 37331 33763 31646 §=931032 31740 33409 36851 40030 42869 3 42770 42164 40555 37331 33763 31646 §=631032. 31740 = 33409 36851 40030 42869 4 42770 42164 40555 37331 33763 31646 §=631032_ = 31740 =: 33409 36851 40030 42869 5 42770 42164 40555 37331 33763 31646 §= 31032. 31740 = 33409 36851 40030 42869 6 42770 42164 40555 37331 33763 31646 31032 31740 33409 36851 40030 42869 7 42770 42164 40555 37331 33763 31646 31032 31740 33409 36851 40030 42869 8 42770 42164 40555 37331 33763. «31646 = 31032-31740 =: 33409 36851 40030 42869 9 42770 42164 40555 37331 33763 31646 31032 31740 33409 36851 40030 42869 10 42770 42164 40555 37331 33763 31646 31032 31740 33409 36851 40030 42869 11 42770 42164 40555 37331 33763 31646 31032 31740 33409 36851 40030 42869 12 42770 42164 40555 37331 33763 31646 31032 31740 33409 36851 40030 42869 13. 42770 842164 40555 37331 33763 = 31646 31032 31740 33409 36851 40030 42869 14 42770 42164 40555 37331 33763 31646 31032 31740 33409 36851 40030 42869 15 42770 42164 40555 37331 33763 31646 31032 31740 33409 36851 40030 42869 16 42770 42164 40555 37331 33763 31646 31032 31740 33409 36851 40030 42869 17 42770 = 42164 40555 37331 33763 «31646 §= 310832. 331740 = 33409 36851 40030 42869 18 42770 42164 40555 37331 33763 31646 31032 9931740 33409 36851 40030 42869 19 42770 42164 40555 37331 33763 31646 31032 31740 33409 36851 40030 42869 20 42770 42164 40555 37331 33763 «31646 §=- 31032. 31740 33409 36851 40030 42869 21 42770 42164 40555 37331 33763 31646 31032 31740 33409 36851 40030 42869 22 42770 42164 40555 37331 33763 31646 31032 31740 33409 36851 40030 42869 23 42770 42164 40555 37331 33763 31646 31032 31740 33409 36851 40030 42869 24 42770 42164 40555 37331 33763 31646 31032 31740 _ 33409 36851 40030 42869 Day: 1026476 1011943 973308 895948 810314 759500 744766 761748 801812 884431 960728 1028857 Month: 31820760 28334400 30172560 26878440 25119720 22785000 23087760 23614200 24054360 27417360 28821840 31894560 3.24E+08 Equivalent Gallons: 321 286 305 271 254 230 233 239 243 277 291 322 3273 Page 3 HEAT DEMAND BY HOUR BY MONTH, BTU'S Hour: ONAN R WD = 24 January 144487 141539 140801 138221 140801 143013 151490 159599 160705 161811 161811 162917 164391 160705 158494 159599 157388 159599 159599 158494 154808 153702 147805 144487 February 137931 135116 134412 131949 134412 136523 144616 152357 153413 154468 154468 155524 156932 153413 151302 152357 150246 152357 152357 151302 147783 146727 141098 137931 March 120502 118042 117428 115276 117428 119272 126342 133105 134027 134949 134949 135872 137101 134027 132183 133105 131261 133105 133105 132183 129109 128187 123268 120502 April 85602 83855 83418 81889 83418 84728 89751 94555 95210 95865 95865 91716 91061 87567 85602 May 46969 46011 45771 44932 45771 46490 49246 51882 52241 52601 52601 52960 53439 52241 51522 51882 51163 51882 51882 51522 50324 49965 48047 46969 Day: 3686269 3518996 3074326 2183934 1198311 Equivalent Gallons: 1154 995 963 HEAT DELIVERED BY HOUR BY MONTH, BTU'S Hour: OCONOWSWNH = P8SsAUZAEBHIG 22 23 24 Days: January 86917 80091 77644 77644 74103 77644 86917 100568 100568 113092 116409 113092 106460 113092 116409 116409 119725 109776 103981 93742 93742 97155 93742 93742 2362666 31 February 70403 64478 58554 58554 55591 97710 89146 80582 76327 76327 79290 76327 76327 March 67816 62112 56409 56409 53557 56409 67816 79224 79224 88609 91357 88609 83112 88609 91357 91357 94105 85861 82075 73520 73520 76372 73520 73520 1890890 1834476 28 31 662 375 April May 61598 46969 56391 46011 55207 45771 55207 44932 52486 45771 55207 46490 61598 49246 72011 51882 72011 52241 85028 52601 83087 52601 85028 52960 79821 53439 85028 52241 83087 51522 83087 51882 85596 51163 82425 51882 74615 51882 66804 51522 66804 50324 69408 49965 66804 48047 66804 46969 1705145 1198311 30 31 ANVIK_#1.XLS June 24045 23555 23432 23003 23432 23800 25211 26560 26744 26928 26928 27112 27358 26744 26376 26560 26192 26560 26560 26376 25763 25579 24597 24045 July 17399 17044 16955 16644 16955 17221 18242 19218 19352 19485 19485 19618 19795 19352 19085 19218 18952 19218 19218 19085 18641 18508 17798 17399 August 25060 24548 24420 23973 24420 24804 26274 27681 27873 28512 27873 27489 27681 27297 27681 27681 27489 26850 26658 25635 25060 Sept. 43134 42253 42033 41263 42033 42694 45224 47645 47975 48305 48305 48636 49076 47975 47315 47645 46985 47645 47645 47315 46215 45885 44124 43134 October November December 80406 114826 145561 78765 112483 142591 78355 111897 141848 76919 109846 139249 78355 111897 141848 79585 113654 144076 84303 120392 152617 88816 126836 160786 89431 127715 161900 90046 128594 163014 90046 128594 163014 90662 129472 164128 91482 130644 165613 89431 127715 161900 88200 125957 159672 88816 126836 160786 87585 125078 158558 88816 126836 160786 88816 126836 160786 88200 125957 159672 86149 123028 155958 85534 122149 154845 82252 117462 148903 80406 114826 145561 613465 443887 639343 1100461 2051377 2929530 3713669 OF eee eee SS ee See eee Month: 1.14£4+08 98531876 95304107 65518034 37147650 18403942 13760486 19819630 33013841 63592699 87885903 1.15E+08 7.62E+08 186 June 25763 25579 24597 24045 139 July 17399 17044 16955 16644 16955 17221 18242 19218 19352 19485 19485 19618 19795 19352 19085 19218 18952 19218 19218 19085 18641 18508 17798 17399 200 August 24548 24420 24420 24804 26274 27681 27873 28256 28512 27873 27489 27681 27297 27681 27681 27489 26850 26658 25635 25060 613465 443887 639343 30 31 31 333 642 888 1163 Sept. October November December 43134 42253 42033 41263 42033 42694 45224 47645 47975 48305 48305 48636 49076 47975 47315 47645 46985 47645 47645 47315 46215 45885 44124 43134 1100461 30 80406 68810 60468 57688 57688 63249 63249 68810 82713 83724 77152 86403 91482 89431 88200 88816 82713 83724 88816 82713 71591 71591 71591 77152 1838179 31 72739 66804 60869 60869 57901 60869 72739 80077 80077 94376 97235 94376 88656 94376 97235 97235 100095 91516 82937 78674 78674 81642 78674 78674 75890 69639 63389 63389 60264 63389 75890 83617 83617 98675 101687 98675 92652 98675 101687 101687 104699 95664 86629 77594 77594 80606 77594 77594 1947319 2010797 30 31 7701 re 73242653 52944907 56868756 51154361 37147650 18403942 13760486 19819630 33013841 56983543 58419572 62334714 5.34E+08 Equivalent Gallons: 740 535 574 517 375 186 Page 4 139 200 333 576 590 630 5395 ANVIK_#2.XLS WASTE HEAT UTILIZATION SIMULATION WORK SHEET. BASIC PROJECT DATA: Location: Anvik - Scenario #2 Date: June 18, 1990 Savings, year 0, fuel gallons: Savings, year 0, fuel cost: Annual pumping elec. cost: 300 $/year. Annual O&M increase cost: Annual other O&M cost: 3000 $/year. Total Savings, year 0: Construction cost estimate: 392000 $ Simple pay back time, years: Fuel high heat value: 132000 Btu/gallon Average fuel cost: 1.35 $/gallon GENERATOR DATA: SYSTEM LOSS DATA: Heat rate at kw-load above: ° 3612 Btu/kwh Constant losses: Heat rate at kw-load above: 10 3415 Btu/kwh Plant piping: 2400 Btu/hr. Heat rate at kw-load above: 20 3245 Btu/kwh Subsurface piping: 7000 Btu/hr. Heat rate at kw-load above: 30 3104 Btu/kwh Engine preheating: 4000 Btu/hr. Heat rate at kw-load above: 40 2991 Btu/kwh Total constant: 13400 Btu/hr. Heat rate at kw-load above: 50 2907 Btu/kwh Heat rate at kw-load above: 60 2850 Btu/kwh Variable losses: Heat rate at kw-load above: 70 2822 Btu/kwh Surface piping: 5 Btwhr.xF Heat rate at kw-load above: 80 2822 Btu/kwh Plant heating: 100 Btu/hr.xF Heat rate at kw-load above: 90 2822 Btu/kwh Radiator losses: 100 Btu/hr.xF Heat rate at kw-load above: 100 2822 Btu/kwh GENERATION DATA: WEATHER DATA: Kwh/month: HDD/Month: January 35,368 2018 February 26,720 1740 March 28,480 1683 April 25,160 1157 May 22,881 656 June 19,921 325 July 24,240 243 August 21,481 350 September 22,880 583 October 27,768 1123 November 28,680 1552 December 31,210 2033 314789 13463 BUILDING DATA: Fuel use, gal/mon. CITY BLD WASH1* WASH2"* na na n/a na Wa Wa wa TOTAL January 270 150 267 686 February 233 129 267 629 March 225 125 267 617 April 155 86 267 507 May 88 49 267 403 June 43 24 267 334 July 32 18 267 317 August 47 26 267 339 September 78 43 267 388 October 150 83 267 500 November 208 115 267 589 December 272 151 267 689 1800 1000 3200 0 0 oO 0 0 0 0 6000 Htg. Efficiency: 0.75 0.75 0.75 0.75 Page 1 POWER PRODUCTION VARIATION: Assumed hourly variation: March 0.038 0.036 0.034 0.034 0.033 0.034 0.038 0.042 0.042 0.047 0.048 0.047 0.045 0.047 0.048 0.048 0.049 0.046 0.043 0.040 0.040 0.041 0.040 0.040 1.000 31 1683 28480 Hour: January February 1 0.038 0.038 2 0.036 0.036 3 0.034 0.034 4 0.034 0.034 5 0.033 0.033 6 0.034 0.034 7 0.038 0.038 8 0.042 0.042 9 0.042 0.042 10 0.047 0.047 a 0.048 0.048 12 0.047 0.047 13 0.045 0.045 14 0.047 0.047 15 0.048 0.048 16 0.048 0.048 17 0.049 0.049 18 0.046 0.046 19 0.043 0.043 20 0.040 0.040 21 0.040 0.040 22 0.041 0.041 23 0.040 0.040 24 0.040 0.040 1.000 1.000 Days: 31 28 HDD: 2018 1740 Kwh: 35368 26720 HEAT DEMAND VARIATION: Assumed hourly variation: Hour: Winter” Summer” 1 0.039 0.039 2 0.038 0.038 3 0.038 0.038 4 0.038 0.038 5 0.038 0.038 6 0.039 0.039 7 0.041 0.041 8 0.043 0.043 9 0.044 0.044 10 0.044 0.044 1 0.044 0.044 12 0.044 0.044 13 0.045 0.045 14 0.044 0.044 15 0.043 0.043 16 0.043 0.043 Ww 0.043 0.043 18 0.043 0.043 19 0.043 0.043 20 0.043 0.043 21 0.042 0.042 22 0.042 0.042 23 0.040 0.040 24 0.039 0.039 1.000 1.000 * Winter: Nov. - Apr. * Summer: May - Oct. April 0.038 0.036 0.034 0.034 0.033 0.034 0.038 0.042 0.042 0.047 0.048 0.047 0.045 0.047 0.048 0.048 0.049 0.046 0.043 0.040 0.040 0.041 0.040 0.040 1157 25160 May 0.043 0.038 0.035 0.034 0.034 0.036 0.036 0.038 0.043 0.045 0.041 0.046 0.048 0.050 0.048 0.048 0.043 0.045 0.048 0.043 0.039 0.039 0.039 0.041 1.000 31 656 22881 ANVIK_#2.XLS June 0.043 0.038 0.035 0.034 0.034 0.036 0.036 0.038 0.043 0.045 0.041 0.046 0.048 0.050 0.048 0.048 0.043 0.045 0.048 0.043 0.039 0.039 0.039 0.041 1.000 30 325 19921 Page 2 July 0.043 0.038 0.035 0.034 0.034 0.036 0.036 0.038 0.043 0.045 0.041 0.046 0.048 0.050 0.048 0.048 0.043 0.045 0.048 0.043 0.039 0.039 0.039 0.041 1.000 31 243 24240 August 0.043 0.038 0.035 0.034 0.034 0.036 0.036 0.038 0.043 0.045 0.041 0.046 0.048 0.050 0.048 0.048 0.043 0.045 0.048 0.043 0.039 0.039 0.039 0.041 31 21481 Sept. 0.043 0.038 0.035 0.034 0.034 0.036 0.036 0.038 0.043 0.045 0.041 0.046 0.048 0.050 0.048 0.048 0.043 0.045 0.048 0.043 0.039 0.039 0.039 0.041 1.000 30 583 22880 October November December 0.043 0.038 0.038 0.038 0.036 0.036 0.035 0.034 0.034 0.034 0.034 0.034 0.034 0.033 0.033 0.036 0.034 0.034 0.036 0.038 0.038 0.038 0.042 0.042 0.043 0.042 0.042 0.045 0.047 0.047 0.041 0.048 0.048 0.046 0.047 0.047 0.048 0.045 0.045 0.050 0.047 0.047 0.048 0.048 0.048 0.048 0.048 0.048 0.043 0.049 0.049 0.045 0.046 0.046 0.048 0.043 0.043 0.043 0.040 0.040 0.039 0.040 0.040 0.039 0.041 0.041 0.039 0.040 0.040 0.041 0.040 0.040 1.000 1.000 1.000 31 30 31 1123 1552 2033 27768 28680 31210 13463 314789 HEAT GENERATED PER HOUR BY MONTH, BTU'S Hour: January February 1 129687 112567 2 122861 106643 3 120414 100718 4 120414 100718 5 116873 97756 6 120414 100718 7 129687 112567 8 143338 119892 9 143338 119892 10 155862 134165 11. 159178 137020 12 155862 134165 13 149230 128456 14 155862 134165 15 159178 137020 16 159178 137020 17 162495 139874 18 152546 131310 19 146751 122747 20 136512 118492 21 136512 118492 22 139925 121454 23 «136512 118492 24 136512 118492 ee ees ee SS eee Day: 3389142 2902832 2807784 2601093 2329526 2128003 2454977 2211825 2407071 2742342 2908047 3039654 March 108371 102667 96963 96963 94111 96963 108371 119778 119778 129163 131911 129163 123667 129163 131911 131911 134660 126415 122630 114074 114074 116926 114074 114074 April 98929 93722 92539 92539 89817 92539 98929 109342 109342 122359 120419 122359 117153 122359 120419 120419 122927 119756 111946 104136 104136 106739 104136 104136 May 98522 91023 83837 81442 81442 86232 86232 91023 98522 103104 93939 105395 109978 114560 109978 109978 98522 103104 109978 98522 93418 93418 93418 93939 ANVIK_#2.XLS June 92664 81890 75425 73270 73270 77580 77580 81890 92664 96974 88354 94819 98942 103065 98942 98942 92664 96974 98942 July 104373 96429 88817 86279 86279 91354 91354 96429 104373 109228 99519 111655 116510 121364 116510 116510 104373 109228 116510 104373 94664 94664 94664 99519 August 96698 78707 76459 76459 80956 96698 96795 92200 98946 103248 107551 103248 103248 96698 96795 103248 96698 87703 87703 87703 92200 Sept. October November December 101801 94053 86628 84153 84153 89103 89103 94053 101801 106536 97066 108904 113639 118373 113639 113639 101801 106536 113639 101801 96528 96528 96528 97066 119564 105661 97320 94539 94539 100100 100100 105661 119564 120575 114003 123255 128614 133973 128614 128614 119564 120575 128614 119564 108442 108442 108442 114003 112769 106834 100899 100899 97931 100899 112769 120107 120107 134406 137266 134406 128687 134406 137266 137266 140125 131546 122967 118705 118705 121672 118705 118705 118759 112508 106258 106258 103133 106258 118759 126487 126487 141544 144556 141544 135521 141544 144556 144556 147568 138533 129498 120463 120463 123475 120463 120463 ee ee ee ee ee See See eee eee Month: 1.05E+08 81279307 87041316 78032801 72215292 63840096 76104294 68566583 72212135 85012603 87241412 94229274 9.71E+08 Equivalent Gallons: 1061 821 879 788 729 HEAT LOST FROM SYSTEM PER HOUR BY MONTH, BTU'S Hour: ONOAnDkOND = nmr amore n nnn BBXSSeVsarsniso 24 Day: Equivalent Gallons: January 37770 37770 37770 37770 37770 37770 37770 37770 37770 37770 37770 37770 37770 37770 37770 37770 37770 37770 37770 37770 37770 37770 37770 37770 906476 284 February 37164 37164 37164 37164 37164 37164 37164 37164 37164 37164 37164 37164 37164 37164 37164 37164 37164 37164 37164 37164 37164 37164 37164 37164 891943 252 March 35555 35555 35555 853308 267 April 32331 32331 32331 32331 32331 32331 32331 32331 32331 32331 32331 32331 32331 32331 32331 32331 32331 32331 32331 32331 32331 32331 32331 32331 775948 235 May 28763 28763 28763 28763 28763 28763 28763 28763 28763 28763 28763 28763 28763 28763 28763 28763 28763 28763 28763 28763 28763 28763 28763 28763 690314 216 645 June 26646 26646 26646 769 July 26032 26032 26032 26032 26032 26032 26032 26032 26032 26032 26032 26032 26032 26032 26032 26032 26032 26032 26032 26032 26032 26032 26032 26032 693 August 26740 26740 26740 26740 26740 26740 26740 26740 26740 26740 26740 26740 26740 26740 26740 26740 26740 26740 26740 26740 26740 26740 26740 26740 729 Sept. 28409 28409 28409 28409 28409 28409 28409 28409 28409 28409 28409 28409 28409 28409 28409 28409 28409 28409 28409 28409 28409 28409 28409 28409 639500 624766 641748 681812 Month: 28100760 24974400 26452560 23278440 21399720 19185000 19367760 19894200 20454360 23697360 25221840 28174560 2.8E+08 194 196 Page 3 201 207 859 881 952 October November December 31851 31851 31851 31851 31851 31851 31851 31851 31851 31851 31851 31851 31851 31851 31851 31851 31851 31851 31851 31851 31851 31851 31851 31851 764431 239 35030 35030 35030 35030 35030 35030 35030 35030 35030 35030 35030 35030 840728 255 37869 37869 37869 37869 37869 37869 37869 37869 37869 37869 37869 37869 37869 37869 37869 37869 37869 37869 37869 37869 37869 37869 37869 37869 908857 285 9806 2830 HEAT DEMAND BY HOUR BY MONTH, BTU'S January February Hour: ONOAnKDRwWD = 24 85924 84171 83732 82198 83732 85047 90089 94911 95569 96226 96226 96884 97761 95569 94253 94911 93596 94911 94911 94253 92061 91404 87897 85924 87117 85339 84894 83339 84894 86228 91339 96228 96895 97562 97562 98228 99117 96895 95562 96228 94895 96228 96228 95562 93339 92673 89117 87117 March 77202 75626 75233 73854 75233 76414 80944 85277 85867 86458 86458 87049 87837 85867 84686 85277 84095 85277 85277 84686 82716 82126 78974 77202 April 65624 64285 63950 62778 63950 64954 68805 72488 72990 73492 73492 73994 74664 72990 71985 72488 71483 72488 72488 71985 70311 69809 67131 65624 49433 49176 48274 49176 49948 52909 55741 56127 56513 56513 56899 57414 56127 55355 55741 54969 55741 55741 55355 54067 53681 51621 50463 ANVIK_#2.XLS June 43240 42357 42137 41365 42137 42799 45336 47762 48093 48424 48424 48755 49196 48093 47431 47762 47100 47762 47762 47431 46328 45997 44233 43240 July 39710 38900 38697 37988 38697 39305 41635 43863 44167 44471 44471 44775 45180 44167 43559 43863 43256 43863 43863 43559 42546 42243 40622 39710 Day: 2192159 2222586 1969635 1674246 1287448 1103166 1013111 Month: 67956940 62232413 61058679 50227380 39910876 33094983 31406453 33609778 38407673 49527258 58361150 68265817 5.94E+08 Equivalent Gallons: 686 629 617 507 HEAT DELIVERED BY HOUR BY MONTH, BTU'S January February Hour: OBNONAhRWND = MPNONAONKMNHABaAeeennnne RONACOCMNMHERONA0 0 Days: 85924 84171 82644 82198 79103 82644 90089 94911 95569 96226 96226 96884 97761 95569 94253 94911 93596 94911 94911 94253 92061 91404 87897 85924 75403 69478 63554 63554 60591 63554 75403 82728 82728 97001 97562 97001 91292 96895 95562 96228 94895 94146 85582 81327 81327 84290 81327 81327 March 72816 67112 61409 61409 58557 61409 72816 84224 84224 86458 86458 87049 87837 85867 84686 85277 84095 85277 85277 78520 78520 81372 78520 77202 April 65624 61391 60207 60207 57486 60207 66598 72488 72990 73492 73492 73994 74664 72990 71985" 72488 71483 72488 72488 71804 70311 69809 67131 65624 403 May 50463 49433 49176 48274 49176 49948 52909 55741 56127 56513 56513 56899 57414 56127 55355 55741 54969 55741 55741 55355 54067 53681 51621 50463 334 June 43240 42357 42137 41365 42137 42799 45336 47762 48093 48424 48424 48755 49196 48093 47431 47762 47100 47762 47762 47431 46328 45997 44233 43240 317 July 39710 38900 38697 37988 38697 39305 41635 43863 44167 44471 44471 44775 45180 44167 43559 43863 43256 43863 43863 43559 42546 42243 40622 39710 2184039 1992755 1876389 1651441 1287448 1103166 1013111 31 28 31 30 31 30 31 August 42496 41629 41412 40653 41412 42062 44556 46941 47266 47591 47591 47916 48350 47266 46615 46941 46290 46941 46941 46615 45531 45206 43472 42496 1084186 339 August 42496 41629 41412 40653 41412 42062 44556 46941 47266 47591 47591 47916 48350 47266 46615 46941 46290 46941 46941 46615 45531 45206 43472 42496 1084186 31 Sept. 50181 49157 48901 48005 48901 49669 52613 55430 55814 56198 56198 56582 57094 55814 55045 55430 54661 55430 55430 55045 53765 53381 51333 50181 1280256 388 Sept. 50181 49157 48901 48005 48901 49669 52613 55430 55814 56198 56198 56582 57094 55814 55045 55430 54661 55430 55430 55045 53765 53381 51333 50181 1280256 30 October November December 62622 76251 86315 61344 74695 84553 61024 74306 84113 59906 72944 82571 61024 74306 84113 61983 75473 85434 65657 79947 90498 69171 84226 95342 69651 84810 96003 70130 85393 96664 70130 85393 96664 70609 85977 97324 71248 86755 98205 69651 84810 96003 68692 83643 94682 69171 84226 95342 68213 83059 94021 69171 84226 95342 69171 84226 95342 68692 83643 94682 67095 81697 92480 66615 81114 91819 64059 78002 88296 62622 76251 86315 1597653 1945372 2202123 500 590 690 October November December 62622 76251 80890 61344 71804 74639 61024 65869 68389 59906 65869 68389 61024 62901 65264 61983 65869 68389 65657 77739 80890 69171 84226 = 88617 69651 84810 88617 70130 85393 96664 70130 85393 96664 70609 85977 97324 71248 86755 97652 69651 84810 96003 68692 83643 94682 69171 84226 95342 68213 83059 94021 69171 84226 95342 69171 84226 91629 68692 83643 82594 67095 81697 82594 66615 81114 85606 64059 78002 82594 62622 (76251 82594 1597653 1903751 2055390 31 30 31 6001 a ee 67705212 55797141 58168050 49543219 39910876 33094983 31406453 33609778 38407673 49527258 57112533 63717081 5.78E+08 Equivalent Gallons: 684 564 588 500 403 334 317 Page 4 339 388 500 577 644 5838 [HEATLOSS CALCULATION BASIC PROJECT INFORMATION PROJECT: |ANVIK PROJ NO: |495-306 CALC FOR: |SCHOOL (10F2) DATE: (2/15/90 TEMPERATURES HEATING DEGREE DAYS INTERIOR: 70|°F 13200|°F DAYS EXTERIOR: -39|°F ROOM: HEIGHT= 20 AREA= 2704 WIDTH= 52 VOLUME= 54080 LENGTH= 52) AC/HR= 0.5 SURFACE AREA| * U-VALUE| *(Ti- Te) | = BTU/HR TOTAL COMMENTS WALL 1 1040 0.053) 109) 6008 WALL 2 1040 0.053) 109) 6008 FLOOR 2704 0.053 109) 15621 CEILING 2704 0.029) 109) 8547 GLASS 109 0 DOORS 109 0 PERIMETER LENGTH| * F-VALUE | * (Ti- Te) | = BTU/HR BASEMENT WALL 109) 0 SLAB 160) 0.65 109) 11336) AIR EXCH. CFM| * FACTOR | *(Ti- Te) | =BTU/HR INFILT. 451 1.08) 109) 53052 100573 TOTAL BTU/HR= 100,573 TOTAL BTU/YR BASED ON HEATING DEGREE DAYS=| 292,307,558 _TOTAL GAUVYR @ 140,000 BTU/GAL, 70% EFFICIENCY= 2,983 freateoss CALCULATION | BASIC PROJECT INFORMATION PROJECT: |ANVIK PROJ NO: |495-306 CALC FOR: |SCHOOL (20F2) DATE: |2/15/90 TEMPERATURES HEATING DEGREE DAYS INTERIOR: 70|°F 13200|°F DAYS EXTERIOR: -39/°F ROOM: HEIGHT= 10 AREA= 4992 WIDTH= 64 VOLUME= 49920 LENGTH= 78 AC/HR= 0.5) SURFACE AREA| * U-VALUE | *(Ti- Te) | =BTU/HR TOTAL COMMENTS WALL 1 640 0.053 109 3697 WALL 2 780 0.053 109 4506 FLOOR 4995 0.053} 109 28856 CEILING 4995 0.029) 109 15789) GLASS 109} 0 DOORS 109 0 PERIMETER LENGTH| * F-VALUE | * (Ti- Te) | = BTU/HR BASEMENT WALL 109) 0 SLAB 160 0.65 109 11336 AIR EXCH. CFM! * FACTOR | * (Ti- Te) | =BTU/HR INFILT. 416) 1.08 109 48972 113156) TOTAL BTU/HR= 113,156 TOTAL BTU/YR BASED ON HEATING DEGREE DAYS=/| _ 328,879,584 TOTAL GALV/YR @ 140,000 BTU/GAL, 70% EFFICIENCY= 3,356 HEATLOSS CALCULATION | BASIC PROJECT INFORMATION PROJECT: |ANVIK PROJ NO: |495-306 CALC FOR: |WASHATERIA DATE: |2/15/90 TEMPERATURES HEATING DEGREE DAYS INTERIOR: 70|°F 13200/°F DAYS EXTERIOR: -39|°F ROOM: HEIGHT= 8 AREA= 1120 WIDTH= 28) VOLUME= 8960 LENGTH= 40 AC/HR= 0.5) SURFACE AREA| * U-VALUE | *(Ti- Te) | =BTU/HR TOTAL — COMMENTS WALL 1 224 0.053 109 1294 WALL 2 320 0.053 109 1849 FLOOR 1120 0.053 109 6470 CEILING 1120 0.053 109) 6470 GLASS 109 0 DOORS 109 0 PERIMETER LENGTH| * F-VALUE | * (Ti- Te) | =BTU/HR BASEMENT WALL 0 0 SLAB 0 0 AIR EXCH. CFM| * FACTOR | * (Ti- Te) |_ =BTU/HR INFILT. 75 1.08) 109 8790 24873 TOTAL BTU/HR= 24,873 TOTAL BTU/YR BASED ON HEATING DEGREE DAYS= 72,291,226 TOTAL GAL/YR @ 140,000 BTU/GAL, 70% EFFICIENCY= 738 HEATLOSS CALCULATION BASIC PROJECT INFORMATION PROJECT: |ANVIK PROJ NO: |495-306 CALC FOR: |CITY BUILDING DATE: |2/15/90 TEMPERATURES HEATING DEGREE DAYS INTERIOR: 70)°F 13200|°F DAYS EXTERIOR: -39|°F ROOM: HEIGHT= 17 AREA= 1800 WIDTH= 30 VOLUME= 30600 LENGTH= 60) AC/HR= 0.5 SURFACE AREA| * U-VALUE | * (Ti - Te) = BTU/HR TOTAL COMMENTS WALL 1 510 0.065) 109 3613 WALL 2 1020 0.065 109) 7227 FLOOR 1800 0.053) 109 10399 CEILING 1800 0.053 109 10399 GLASS 109) 0 DOORS 109 0 PERIMETER LENGTH| * F-VALUE | * (Ti- Te) |_ =BTU/HR BASEMENT WALL 0 0 SLAB 0 0 AIR EXCH. CFM| * FACTOR | * (Ti- Te) | =BTU/HR INFILT. 255 1.08 109 30019) 61656) TOTAL BTU/HR= 61,656 TOTAL BTU/YR BASED ON HEATING DEGREE DAYS=| _ 179,197,920 TOTAL GAL/YR @ 140,000 BTU/GAL, 70% EFFICIENCY= 1,829 | HEATLOSS CALCULATION BASIC PROJECT INFORMATION PROJECT: |ANVIK PROJ NO: [495-306 | CALC FOR: [CORPORATION BUILDING DATE: [2/15/90 | TEMPERATURES HEATING DEGREE DAYS INTERIOR: 70|°F 13200|°F DAYS EXTERIOR: -39|°F ROOM: HEIGHT= 8 AREA= 1500 WIDTH= 30 VOLUME=| 12000 LENGTH= 50 AC/HR= 0.5 SURFACE AREA| * U-VALUE| *(Ti-Te)| _=BTU/HR TOTAL COMMENTS WALL 1 240 0.047’ 109) 1230 WALL 2 400 0.047’ 109) 2049 | [FLOOR 109 0 CEILING 1500 0.053 109) 8666 GLASS 109) 0 DOORS 109 0 PERIMETER LENGTH| * F-VALUE | * (Ti- Te) | = BTU/HR BASEMENT WALL 109 0 SLAB 160 0.65) 109 11336 AIR EXCH. CFM| * FACTOR | *(Ti- Te)| =BTU/HR INFILT. 100 1.08 109 11772 35052 TOTAL BTU/HR= 35,052 TOTAL BTU/YR BASED ON HEATING DEGREE DAYS=| 101,876,544 TOTAL GAL/YR @ 140,000 BTU/GAL, 70% EFFICIENCY= 1,040 HEATLOSS CALCULATION BASIC PROJECT INFORMATION PROJECT: |ANVIK PROJ NO: |495-306 CALC FOR: |POST OFFICE DATE: (2/15/90 TEMPERATURES HEATING DEGREE DAYS INTERIOR: 70|°F 13200|°F DAYS EXTERIOR: -39|°F ROOM: HEIGHT= 8 AREA= 480 WIDTH= 12 VOLUME= 3840 LENGTH= 40 AC/HR= 0.5 SURFACE AREA| * U-VALUE | *(Ti- Te) | _=BTU/HR TOTAL COMMENTS WALL 1 96 0.053 109 555 WALL 2 320 0.053 109 1849 FLOOR 480 0.053 109) 2773 CEILING 480 0.053 109 2773 GLASS 109 0 DOORS 109} 0 PERIMETER LENGTH| * F-VALUE | * (Ti- Te) |_ =BTU/HR BASEMENT WALL 0 0 SLAB 0 0 AIR EXCH. CFM| * FACTOR | * (Ti- Te) | =BTU/HR INFILT. 32 1.08 109) 3767 11716 TOTAL BTU/HR= 11,716 TOTAL BTU/YR BASED ON HEATING DEGREE DAYS= 34,052,198 TOTAL GAU/YR @ 140,000 BTU/GAL, 70% EFFICIENCY= 347 APPENDIX 2 COST ESTIMATES ANVIK Anvik waste heat report Simple Payback Ignores O&M costs Scenario #1 Scenario #2 Prodject cost $ 475,700 $ 392,000 Fuels cost Savings $ 7,300 $ 7,900 Years for payback 65.2 49.6 Fuel cost savings based on $1.35 per gallon Price of fuel required for 10 year payback Prodject cost $ 475,700 $ 392,000 Gallons fuel saved 5,400 5,800 Cost of fuel per gallon for 10 year payback $8.81 © $6.76 2/20/91 HMS 9119 CONSTRUCTION COST ESTIMATE WASTE HEAT RECOVERY SYSTEM ANVIK, ALASKA COST CONSULTANT ENGINEER HMS Inc. Frank Moolin & Associates, Inc. 4103 Minnesota Drive 550 W. 7th Avenue Anchorage, Alaska 99503 Anchorage, Alaska 9950 (907) 561-1653 February 19, 1991 (907) 562-0420 FAX WASTE HEAT RECOVERY SYSTEM PAGE 1 ANVIK, ALASKA CONSTRUCTION COST STUDY 2/19/91 NOTES REGARDING THE PREPARATION OF THIS COST ESTIMATE This study has been prepared from a February 12, 1991 report, including a concept design dated June 18, 1990, by Frank Moolin & Associates. Unit prices and costs indicated in this estimate are based on current knowledge. The possible effects of current hostilities in the Middle East have not been considered in the preparation of this estimate. This estimate is a statement of probable construction cost only, and is priced using A.S. Title 36 prevailing labor rates and current materials, freight and equipment prices, and to reflect a competitive bid in Spring 1992. Removal of hazardous material has not been considered in this cost estimate. SCENARIO #1 - School Only SCENARIO #2 - Washeteria and Community Building SCENARIO #3 - Future Consideration WASTE HEAT RECOVERY SYSTEM ANVIK, ALASKA CONSTRUCTION COST STUDY co ESTIMAT: 01 - General Conditions, Overhead and Profit 02 - Sitework 06 - Wood and Plastics 13 - Special Construction 15 - Mechanical 16 - Electrical SUBTOTAL Estimate contingency for elements of project not determined at this early level of design Escalation at .50% per month to Spring 1992 TOTAL CONSTRUCTION COST: PROJECT COST Design SIA (Supervision, Inspection and Administration) Project Contingency TOTAL PROJECT COST: 10.00% 7.50% 10.00% 20.00% 10.00% SUMMARY SCENARIO #1 124,720 73,033 11,004 4,670 67,490 6,427 287,344 339,784 33,978 67,957 33,978 475,698 PAGE 2 2/19/91 SCENARIO #2 115,110 56,352 5,000 4,450 49,817 6,034 236,763 23,676 19,533 279,972 27,997 55,994 27,997 391,961 PAGE 3 WASTE HEAT RECOVERY SYSTEM ANVIK, ALASKA CONSTRUCTION COST STUDY 2/18/91 SCENARIO #1 WASTE HEAT RECOVERY SYSTEM —* ANVIK, ALASKA CONSTRUCTION COST STUDY 2/19/91 SCENARIO #1 01 - GENERAL CONDITIONS QUANTITY UNIT UNIT RATE ESTIMATED COST Mobilization 1 LoT 8,500.00 8,500 Freight 33,500 LBS 0.50 16,750 Supervision, equipment, utilities, clean site, tools and protection 10 WKS 3,500.00 35,000 Per diem 220 DAYS 110.00 24,200 Travel costs, including time in travel 6 RT 1,400.00 8,400 SUBTOTAL 92,850 Bond and insurance 2.25 % 5,748 Profit 10.00 % 26,122 TOTAL ESTIMATED COST: 124,720 WASTE HEAT RECOVERY SYSTEM _* ANVIK, ALASKA CONSTRUCTION COST STUDY 2/19/91 SCENARIO #1 02 - SITE WORK QUANTITY UNIT UNIT RATE ESTIMATED COST Piles Mobilize aT LOT 10,000.00 10,000 Wood piles 20 EA 650.00 13,000 Drill pile hole 400 LF 25.00 10,000 Slurry 15 cy 280.00 4,200 Freeze back 20 EA 220.00 4,400 Test and demobilize 1 LOT 3,000.00 3,000 Piped Utilities Excavate trench for arctic pipe, including backfilling and spread and level surplus 290 LF 12.50 3,625 2" diameter Schedule 40 pipe with insulation and arctic pipe protection 580 LF 41.50 24,070 Bend 5 EA 147.50 ~. tan TOTAL ESTIMATED COST: 73,033 WASTE HEAT RECOVERY SYSTEM eee ANVIK, ALASKA CONSTRUCTION COST STUDY 2/19/91 SCENARIO #1 06 - WOODS AND PLASTICS QUANTITY UNIT UNIT RATE ESTIMATED COST Glulam beams to support new module 120 LF 40.00 4,800 Wood deck 96 SF 11.50 1,104 Miscellaneous metals 2,000 LBS 1.75 3,500 Access steps 1 EA 325.00 - 325 Handrail and balustrade 30 LF 42.50 1,275 TOTAL ESTIMATED COST: 11,004 WASTE HEAT RECOVERY SYSTEM Rape 7 ANVIK, ALASKA CONSTRUCTION COST STUDY 2/19/91 SCENARIO #1 13 - SPECIAL CONSTRUCTION QUANTITY UNIT UNIT RATE ESTIMATED COST Pre-engineered 8’0"x8’0" building module with floor, exterior wall structure and roofing complete 1 EA 2,800.00 2,800 Hole through exterior wall for heating pipes 6 EA 110.00 660 Exterior door 1 EA 710.00 710 Louver 1 EA 500.00 500 TOTAL ESTIMATED COST: 4,670 WASTE HEAT RECOVERY SYSTEM oor ANVIK, ALASKA CONSTRUCTION COST STUDY 2/19/91 SCENARIO #1 15 - MECHANICAL QUANTITY UNIT UNIT RATE ESTIMATED COST Exchanger and Connections Connection to existing piping to cooling system of generators 3 EA 72.50 218 Form hole through existing wall for heating pipes 2 EA 195.00 390 3" diameter black steel welded piping 140 LF 26.22 3,671 Fittings 24 EA 46.35 1,112 Gate valve 26 EA "325.00 8,450 Drain valves 2 EA 360.00 720 Balance valves 2 EA 325.00 650 Check valve 6 EA 325.00 1,950 2" diameter black steel welded piping including fittings 30 LF 17.97 539 Gate valve 3 EA 260.00 780 Balance valve a EA 121.00 121 WASTE HEAT RECOVERY SYSTEM — ANVIK, ALASKA CONSTRUCTION COST STUDY 2/19/91 SCENARIO #1 15 - MECHANICAL QUANTITY UNIT UNIT RATE ESTIMATED COST ch er and Connections Continued 3/4" diameter black steel welded piping including fittings 40 LF 8.50 340 Gate valve 10 EA 69.00 690 Check valve 3 EA 69.00 207 Insulation to pipe, 3" diameter 140 LF 7.10 994 Ditto, 2" diameter 30 LF 5.83 175 Ditto, 3/4" diameter 40 LF 4.20 168 Booster pumps, 30 GPM, 25’0" head, fractional HP 2 EA 1,310.00 2,620 Circulating pumps, 5 GPM, 5’0" head, fractional HP 3 EA 735.00 2,205 Heat exchanger, 282 MBH, 68 GPM 1 EA 3,920.00 3,920 Ditto, 31 MBH, 68 GPM 1 EA 2,950.00 2,950 Radiator 2 EA 3,830.00 7,660 Air separator with vent a: EA 495.00 495 WASTE HEAT RECOVERY SYSTEM PAGE 10 ANVIK, ALASKA CONSTRUCTION COST STUDY 2/19/91 SCENARIO #1 15 - MECHANICAL QUANTITY UNIT UNIT RATE ESTIMATED COST Exchanger and Connections (Continued) Control valves 2 EA 89.00 178 Gauges 4 EA 68.50 274 Expansion tank 1 EA 770.00 770 Glycol tank, pumps and make-up system 1 EA 1,025.00 1,025 Glycol 275 GALS 8.80 2,420 Hook-Up Form hole through existing wall for heating pipes 2 EA 195.00 390 2" diameter black steel piping including fittings 100 LF 17.97 1,797 1 1/4" ditto 120 LF 12.05 1,446 1 1/4" gate valves 3 EA 124.00 sia Control valves 3 EA 89.00 267 Check valves 1 EA 124.00 124 WASTE HEAT RECOVERY SYSTEM Rage 11 ANVIK, ALASKA CONSTRUCTION COST STUDY 2/19/91 SCENARIO #1 15 - MECHANICAL QUANTITY UNIT UNIT RATE ESTIMATED COST Hook-Up __ (Continued) 1 1/4" insulation 220 LF 4.70 1,034 Duct coil 2 EA 885.00 1,770 Double wall heat exchanger 1 EA 4,880.00 4,880 Connection to water heater 1 EA 72.50 73 Connection to existing piping system 2 EA 72.50 145 Test and balance system 40 HRS 75.00 3,000 Controls and Instrumentation Generator building and new module 1 LOT 2,000.00 2,000 Hook-up inter ties 3 LOTS 1,500.00 4,500 TOTAL ESTIMATED COST: 67,490 WASTE HEAT RECOVERY SYSTEM PAGE 12 ANVIK, ALASKA CONSTRUCTION COST STUDY 2/19/91 SCENARIO #1 16 - ELECTRICAL QUANTITY UNIT UNIT RATE ESTIMATED COST Motor Connections Breaker in existing power panel 2 EA 175.00 350 Connection to motor 5 EA 115.00 575 Disconnect switch 3 EA 330.00 990 3/4" EMT conduit 100 LF 3.20 320 #8 copper 400 LF 0.85 340 New Module | Main feeder and conduit 40 LF 8.80 352 Breaker in existing distribution panel 1 EA 277.00 277 Panel x EA 800.00 800 Exterior light fixture 2 EA 330.00 ‘ 660 Light fixtures 6 EA 190.00 1,140 Switch 1 EA 55.00 55 Duplex outlets 4 EA 68.00 272 WASTE HEAT RECOVERY SYSTEM PAGE 13 ANVIK, ALASKA CONSTRUCTION COST STUDY 2/19/91 SCENARIO #1 16 - ELECTRICAL QUANTITY UNIT UNIT RATE ESTIMATED COST New Module (Continued) 1/2" conduit 60 LF 3.00 180 #12 copper 210 LF 0.55 - 116 TOTAL ESTIMATED COST: 6,427 PAGE 14 WASTE HEAT RECOVERY SYSTEM ANVIK, ALASKA CONSTRUCTION COST STUDY 2/18/91 SCENARIO #2 WASTE HEAT RECOVERY SYSTEM melas ANVIK, ALASKA CONSTRUCTION COST STUDY 2/19/91 SCENARIO #2 01 - GENERAL CONDITIONS QUANTITY UNIT UNIT RATE ESTIMATED COST Mobilization 1 LOT 8,500.00 8,500 Freight 31,000 LBS 0.50 15,500 Supervision, equipment, utilities, clean site, tools and protection 10 WKS 3,500.00 35,000 Per diem 195 DAYS 110.00 21,450 Travel costs, including time in travel 6 RT 1,400.00 8,400 SUBTOTAL 88,850 Bond and insurance 2.25 % 4,736 Profit 10.00 % 21,524 TOTAL ESTIMATED COST: 115,110 WASTE HEAT RECOVERY SYSTEM PAGE 16 ANVIK, ALASKA CONSTRUCTION COST STUDY 2/19/91 SCENARIO #2 02 - SITE WORK QUANTITY UNIT UNIT RATE ESTIMATED COST Piles Mobilize AB LoT 10,000.00 10,000 Wood piles 6 EA 650.00 3,900 Drill pile hole 120 LF 25.00 3,000 Slurry 5 cy 280.00 1,400 Freeze back 6 EA 220.00 1,320 Test and demobilize 1 LOT 3,000.00 3,000 Piped Utilities Excavate trench for arctic pipe, including backfilling and spread and level surplus 360 LF 12.50 4,500 2" diameter Schedule 40 pipe with insulation and arctic pipe protection 340 LF 41.50 14,110 1 1/2" ditto 120 LF 35.10 4,212 1 1/4" ditto 260 LF 31.90 8,294 WASTE HEAT RECOVERY SYSTEM pen ANVIK, ALASKA ' CONSTRUCTION COST STUDY 2/19/91 SCENARIO #2 02 - SITE WORK QUANTITY UNIT UNIT RATE ESTIMATED COST Piped Utilities (Continued) 2" bend 6 EA 147.50 885 1 1/2" ditto 4 EA 151.00 604 1 1/4" ditto 4 EA 132.50 530 1 1/2" tee 2 EA 160.00 320 1 1/4" ditto 2 EA 138.50 277 TOTAL ESTIMATED COST: 56,352 WASTE HEAT RECOVERY SYSTEM ee a8 ANVIK, ALASKA CONSTRUCTION COST STUDY 2/19/91 SCENARIO #2 06 - WOODS AND PLASTICS QUANTITY UNIT UNIT RATE ESTIMATED COST Glulam beams to support new module 60 LF 40.00 2,400 Miscellaneous metals 800 LBS 1.75 1,400 Access steps, including handrail and base 1 LoT 1,200.00 1,200 TOTAL ESTIMATED COST: 5,000 WASTE HEAT RECOVERY SYSTEM PAGE 28 ANVIK, ALASKA CONSTRUCTION COST STUDY 2/19/91 SCENARIO #2 13 - SPECIAL CONSTRUCTION QUANTITY UNIT UNIT RATE ESTIMATED COST Pre-engineered 8’0"x8’0" building module with floor, exterior wall structure and roofing complete 1 EA 2,800.00 2,800 Hole through exterior wall for heating pipes 4 EA 110.00 440 Exterior door 1 EA 710.00 710 Louver al EA 500.00 500 TOTAL ESTIMATED COST: 4,450 PAGE 20 WASTE HEAT RECOVERY SYSTEM ANVIK, ALASKA CONSTRUCTION COST STUDY 2/19/91 SCENARIO #2 15 - MECHANICAL QUANTITY UNIT UNIT RATE ESTIMATED COST Exchanger and Connections Connection to existing piping to cooling system of generators a EA 72.50 218 Ditto radiators 2 EA 72.50 145 Form hole through existing wall for heating pipes 4 EA 195.00 780 2" diameter black steel welded piping 100 LF 17.97 1,797 Gate valve 26 EA 260.00 6,760 Drain valves 2 EA 260.00 520 Balance valves 2 EA 89.00 178 Check valve 6 EA 260.00 1,560 1 1/2" diameter black steel welded piping including fittings 30 LF 13.40 402 Gate valve 3 EA 134.95 405 Balance valve 2 EA 121.00 242 WASTE HEAT RECOVERY SYSTEM a = ANVIK, ALASKA CONSTRUCTION COST STUDY 2/19/91 SCENARIO #2 15 - MECHANICAL QUANTITY UNIT UNIT RATE ESTIMATED COST changer and Connections Continue Insulation to pipe, 2" diameter 100 LF 5.83 583 Ditto, 1 1/2" diameter 30 LF 5.20 156 Ditto, 3/4" diameter 40 LF 4.20 168 3/4" diameter black steel pipe 40 LF 8.50 340 Gate valve 10 EA 69.00 690 Check valve 3 EA 69.00 207 Booster pumps, 27 GPM, 20’0" head, fractional HP 2 EA 1,310.00 2,620 Circulating pumps, 5 GPM, 5’0" head, fractional HP 3 EA 735.00 2,205 Heat exchanger, 282 MBH, 68 GPM i EA 3,920.00 3,920 Ditto, 31 MBH, 68 GPM 1 EA 2,950.00 2,950 Air separator with vent 1 EA 495.00 495 Control valves 2 EA 89.00 178 WASTE HEAT RECOVERY SYSTEM met ANVIK, ALASKA CONSTRUCTION COST STUDY 2/19/91 SCENARIO #2 15 - MECHANICAL QUANTITY UNIT UNIT RATE ESTIMATED COST Exchanger and Connections (Continued) Gauges 4 EA 68.50 274 Expansion tank 1 EA 770.00 770 Glycol tank, pumps and make-up system 1 EA 1,025.00 1,025 Glycol 275 GALS 8.80 2,420 Hook-Up Form hole through existing wall for heating pipes 4 EA 195.00 780 1 1/2" diameter black steel piping including fittings 80 LF 17.97 1,438 1.1/4" ditto 80 LF 12.05 964 1 1/2" gate valves 3 EA 134.95 405 1 1/4" ditto 3 EA 124.00 372 Balancing valve 4 EA 89.50 358 1 1/2" insulation 80 LF 5.20 416 WASTE HEAT RECOVERY SYSTEM ANVIK, ALASKA CONSTRUCTION COST STUDY SCENARIO #2 15 - MECHANICAL QUANTITY UNIT UNIT RATE PAGE 23 2/19/91 ESTIMATED COST Hook-Up ___ (Continued) 1 1/4" insulation Heat exchanger, 101 MBH, 11 GPM Ditto, 66 MBH, 8 GPM Connection to existing piping system Test and balance system Controls and Instrumentation Generator building and new module Hook-up inter ties TOTAL ESTIMATED COST: 40 LF 5 5 LOTS LOTS 4.70 1,400.00 1,010.00 72.50 75.00 2,000.00 1,500.00 376 1,400 1,010 290 3,000 4,000 3,000 49,817 ’ WASTE HEAT RECOVERY SYSTEM a 54 ANVIK, ALASKA CONSTRUCTION COST STUDY 2/19/91 SCENARIO #2 16 - ELECTRICAL QUANTITY UNIT UNIT RATE ESTIMATED COST Motor Connections Breaker in existing power panel 2 EA 175.00 350 Connection to motor 5 EA 115.00 575 Disconnect switch 3 EA 330.00 990 3/4" EMT conduit 100 LF 3.20 ; 320 #8 copper 400 LF 0.85 340 New Module Main feeder and conduit 40 LF 8.80 352 Breaker in existing distribution panel 1 EA 277.00 277 Panel 1 EA 800.00 800 Exterior light fixture 1 EA 330.00 330 Light fixtures 6 EA 190.00 1,140 Switch al EA 55.00 55 Duplex outlets 4 EA 68.00 272 WASTE HEAT RECOVERY SYSTEM PAGE 25 ANVIK, ALASKA CONSTRUCTION COST STUDY 2/19/91 SCENARIO #2 16 - ELECTRICAL QUANTITY UNIT UNIT RATE ESTIMATED COST New Module (Continued) 1/2" conduit 50 LF 3.00 150 #12 copper 150 LF 0.55 83 TOTAL ESTIMATED COST: 6,034 APPENDIX 3 RAW DATA ANVIK H_D_DAY.XLS HEATING DEGREE DAY WEATHER DATA Note: Community names in lower case are close to site and are used when actual info is not available. | MONTH [HOD _|HDD [HDD MONTH [HDD [HDD [HDD MONTH [HDD [HOD _|HOD MEAN 1988| 1989) MEAN 1988] 1989) [MEAN 1988) 1989 HOONAH [COLD BAY _|__|CoRDOvVA | Juneau > | ifn JAN 1087| 1217 [JAN 1126! 1318 JAN 1157 1255 FEB 1002 1144 FEB 1055| 834 FEB 967 1017 MAR 936 1097| MAR 1098 [1034] MAR 1001 1024 IAPR 768) 663 APR 952 917 APR 809) 708 MAY 639 491 MAY 782! 751 MAY 637 [___584 JUN 412 283] JUN 578 564 JUN 434 [____ 403 JUL 391] 338] _—‘159) JUL 448] 427|_—«432I JUL 356] __315| 202 AUG 375| 338] 210 AUG 416| 423/353 AUG 360| 324) =a SEP 520|__497| _—:370 SEP 517|___537| 447 SEP 503/481; 400 locT 751|__-641|_—=718 OCT [___779|___755| 695 Oct 737|___665|_ 717 NOV 940| 855) NOV 907/970] (975 NOV 927| 8731 990) DEC 1034{ 1040) DEC 1075| 1050] 1054) DEC 1115, 950i 868] TOTAL 8855 TOTAL 9733 9374[ [TOTAL 9003} [__8404 err | 7 | ANVIK, RUSSIAN MISSION, & LOWER KALSKAG |Holy Cross ——————------> [Aniak ———___—-> St. Marys ------------------> JAN 2018 JAN 1958 2508| JAN 1739 | 2370 FEB 1740 FEB 1617 1163} FEB 1627| T1128) |MAR 1683 MAR 1605 MAR [1541 1418) JAPR 1157| APR 1163] APR 1185) 1087 MAY 656| MAY 715| 764 MAY 697 | 868) JUN 325) JUN 380) 338 JUN 422 [e381 JUL 243 JUL [310] 112 JUL 299) 143| 367 AUG 350 AUG 395| 425 AUG 357/___-317|_~—=—«380 SEP 583] SEP 619 697/511 SEP 601 554| 527 OCT 1123 [oct 1121] 1247 OCT 1072| 1180) 10471 NOV 1552! [Nov 1488[ 18231 NOV 1436] 1671] _ 1650 DEC 2033] DEC 1986 DEC 1810| 1756] 1566 TOTAL 13463] L TOTAL 13357] TOTAL 12786 12769 Note: for analysis, use Holy Cross Data KOTUK WHITE MOUNTAIN Unalakleet -----—-----> Nome > JAN 1855 JAN 1809] FEB 1727| FEB 1701 MAR 1692! | MAR 1767| iz APR 1294 T APR 1424) MAY <7) _[MAY 898 JUN 532| [eee JUN 565 JJUL 386 JUL 430] |AUG 393 AUG 463 [ SEP 676 1164 OCT [1140] 1505] NOV [1447] 1875) DEC 1818 TOTAL 13919 TOTAL 14138 fe — Note: St. Marys is closer than Unalakleet to Kotlik but has less HDD than typical coastal communities. Unalakleet is the Closest listed coastal community to Kotlik. Nome is the closest listed coastal community to White Mountain. Page 1 Engine Heat balance charts for modern diesel engines indicate one-third of fuel required for engine operation results in heat absorbed by the jacket water. This heat must be totally removed to assure dependable engine performance. % 30 FUEL ENERGY % LOAD TYPICAL HEAT BALANCE DIESEL ENGINE (PRECOMBUSTION CHAMBER — TURBO-CHARGED AFTERCOOLER) Figure 101 The amount of heat removed is regulated by engine thermostats. They permit efficient engine operation by disconnecting the exter- nal cooling system until jacket water temper- atures exceed 175°F (79°C). Never operate without thermostats when utilizing the nor- mal 175°F (79°C) cooling system. EXCERPT FRomM “CATERPILLAR APPLICATION AND INSTALLATION “ MANUAL (AUG. ‘as) - PC. GC, DEMOMSTRATES “THAT BETWEEN 607, £ 1007, Load , Pektept oF EWERLY “To JACKET WATER IS ESSENTIALLY CONSTANT _ PERCENTAGES OBTAINED FRon PRIME LoaD DATA SHouLD BE APPLICABLE IN THIS RAWCE , GENSETS.XLS (GENSET DATA LOCATION |GENSET | en | HOONAH, _|CATAPILER 3512 @ 851 KW PRIME (W/O FAN) - NOTE 1 | Cc. BAY INPUT: 143198 OUTPUT: | Work: ia Exhaust: : Radiation: | Water: pia Aftercooler: 3697|btu/min [included in jacket water) —-> Oilcooler: 7166|btu/min _|(included in jacket water) -——> Total: WATER % LOAD | KW | GPH |[KWH/GAL| BTU/HR |BTU/KWH| BTU/GAL joo] 851 —*62.0) 13.7| 1924500) 2261] 31049) 75|__ 638) 50] 426 i (a ic. BAY CATAPILER 3512 @ 683 KW PRIME (W/O FAN) - NOTE 2 INPUT: i 121417 OUTPUT: | Work: ii 43392 Exhaust: 44984) Radiation: on | 6028 Water: 27070 Aftercooler: 1934)btu/min _| (included in jacket water) -----> 0 Oilcooler: 6085|btu/min _ | (included in jacket water) ——-> Ol | Total: 121474] btu/min | WATER | % LOAD | KW | GPH |KWH/GAL| BTU/HR_|BTU/KWH| BTU/GAL Dl 100 683/526) 13.0| __ 1624200 2378 30905 75| 512 So 342] fe HOONAH _|CATAPILER D398 @ 600 KW PRIME (W/O FAN) INPUT: 48.2[gph * 19590] tub hhv * 7.076|Ib/gal / 60|minfhr =| 111357 OUTPUT: | Work: 636|kw engine * 3412] btu/kwh / 60[minvhr =| Exhaust: Radiation: pal Water: in} | —| Total: __|_ WATER % LOAD | KW | GPH |KWH/GAL| BTU/HR |BTU/KWH| BTU/GAL 113] -675|_—_—56.1/ 12.0] __ 2190000 3244 097 too] 600| 48.2) 12.4[ _1932000[ 3220 40083 ‘i 75|__450| 36.1 12.5 50 25.3) 11.9 CATAPILER 3406 TA @ 210 KW PRIME (W/O FAN)-NOTE3 | _ eT INPUT: 16.5|gph * 19590] btu/b hhv * 7.076|Ib/gal / 60|minfhr =| __38120|btu/min OUTPUT: |Work: 224|kw engine * 3412] btu/kwh / 60|minfhr =| 12738 Exhaust: | Page 1 GENSETS.XLS CATAPILER D342 T @ 160 KW PRIME (W/O FAN) - NOTE 4 INPUT: asi * 19590) btu/b hhv * 7.076) Ib/gal / OUTPUT: | Work: 235|bhp engine *| 2545) btu/bhp-hr / Exhaust: 1340| CFM @ 710\F > Radiation: Water: Total: % LOAD | KW _| GPH _|KWH/GAL 143) 229) 100 160] 12.5 12.8) 75 120 9.8} 12.2) So 80 7.0 11.4! CATAPILER 3306 TA @ 155 KW PRIME (W/O FAN) INPUT: 2.3|gph * 19590) OUTPUT: | Work: 167] Exhaust: [ __| Radiation: Water: Total: — % LOAD | KW _| GPH | KWH/GAL 116 180 14.5 12.4) 100) 155) 12.3] 12.6) 75 9.3 12.5) 50 78 6.5 11.9) R. MISSION _|CATAPILER 3304T @ 90 KW PRIME (W/O FAN) - NOTE 6 [ INPUT: 7.6|gph * 19590} btu/Ib hhv * OUTPUT: | Work: 99] kw engine * Exhaust: Radiation: Water: GPH_|KWH/GAL BTU/GAL 9.2 11.4! 37089 100 76 11.8 39513] 75 56 12.1 50 39 11.5) R. MISSION, |CUMMINS LTA 10 @ 110 KW PRIME (W/O FAN) - NOTES 7 & 8 WHITE MT. _|INPUT: 8.0|gph * 19590] btu/b hhv * 7.076) OUTPUT: | Work: 166] bhp engine * 2545) Exhaust: 9382| * 166 Radiation: 745} * 166 Water: 6251|° 166 Total: ail WATER _|_ % LOAD | KW | GPH |KWHIGAL| BTU/HR_|BTU/KWH 100} 110 8.0 13.8 264936} 2409) 75 83 oo —— 4 ALLIS CHALMERS 11000 @ 100 KW PRIME (W/ FAN) - NOTE 9 INPUT: 8.5|gph* | __19590|btu/b hhv * OUTPUT: | Work: 150} bhp engine * 2545) Exhaust: Radiation: Water: L 150} bhp engine * Total: GENSETS.XLS KW GPH | KWH/GAL 125) 125 10.3 12.1 360000) 2880) 34951 100| _100) 8.5 11.8 288000) 2880) 33882 75) 75 6.7| 11.2) ih So] 50] 5.0) 10.0 ANVIK ALLIS CHALMERS 3500 @ 60 KW PRIME (W/ FAN) - NOTE 10 INPUT: 5.1/gph * 19590) btu/b hhv * 7.076|Ib/gal / 60| min/hr = 11783] btu/min OUTPUT: | Work: 87| bhp engine * 2545] btu/bhp-hr / 60} min/hr = 3691 31% Exhaust: 2 Radiation: 2 Water: ey 87| bhp engine * 32|btu/bhp-min = 2784) 24% Total: 2\btu/min WATER % LOAD KW GPH_ |KWH/GAL| BTU/HR_ |BTU/KWH| BTU/GAL 125 75| 6.7 11.2! 208800) 2784 31164 100] 60] 5.2| 11:5 167040] 2784 32123] 75| 45) 3.8) 11.8) L 50) 30) 2.7| W141 ANVIK ALLIS CHALMERS 2900 @ 50 KW PRIME (W/ FAN) - NOTE 10 INPUT: 4.26|gph * 19590) btu/b hhv * 7.076| Ib/gal / 60} min/hr = 9842! btu/min OUTPUT: | Work: 73|bhp engine * 2545] btu/ohp-hr / 60| min/hr = 3097| 31% _|Exhaust: 2 Radiation: 2 |Water: 73/bhp engine * 32) btu/bhp-min = 2336) 24% Total: ?\|btu/min WATER % LOAD | KW GPH_|KWH/GAL| BTU/HR |BTU/KWH| BTU/GAL 120 60} 5.2) 11.5) 168192 2803; 32345) 100) 50} 4.26) 11.7} 140160 2803} 32901 75| 38} 3.23} 11.6) 50) 25 2.3) 10.9) SUMMARY RESULTS: mE WEIGHTED SITE LOCATION _|GENSET } BTU/KWH| BTU/GAL| WGHT % |BTU/KWH| BTU/GAL HOONAH CAT D398 3220} 40083 5 2357 31953 CAT D398 3220) 40083 5 CAT 3512 (851 KW) 2261 31049 90) iC. BAY CAT 3512 (683 KW) 2378) 30905 33) 2339 30953) CAT 3512 (851 KW) 2261 31049) 33} CAT 3512 (683 KW) | 2378 30905 33} L. KALSKAG |CAT ae 3525) 45120] 0} 2924 37239} CAT 3406TA [2857] __ 36964 90) CAT D342T | 3525] 45120) 10] CUMMINS 2409) 33117) 50) 2873 36315) 25) 25) 33} 33 33) 50 50 Page 3 GENSETS.XLS WHITE MT. |CUMMINS LTA10 2409 33117| 100 2409) 33117 DETROIT 4-71T oO DETROIT 371 0 NOTES: General) | Engine input and output are from manufacturer's data except as shown. KWH/GAL, BTU/KWH, and BTU/GAL are calculated. 1) Fuel use is listed in manufacturer's data as 143198 btu/min input. Fuel use in gph is calculated as btu/min / 19590 btuAb hhv / 7.076 Ib/gal * 60 min/hr_= gph. 2) Fuel use is listed in manufacturer's data as 121417 btu/min input. Fuel use in gph is calculated as btu/min / 19590 btu/b hhv / 7.076 Ib/gal * 60 min/nr_= gph. 3) Nameplate info recorded on engine #2 as 3406D! however AVEC data lists 375HP/257KW for this genset_| which corresponds to a 3406TA. A 3406DITA is rated at 433HP/310KW. Generator nameplate data lists 350KW prime. 3406TA data is used here. | 4) One genset nameplate info recorded as D342turbo and one as D342PC. They have a skid mounted fan andi temote radiator, respectively. Typical AVEC data for 0342T with fan is 335HP/223KW peak and without fan is 335HP/229KW peak. This corresponds to a D342T. D342T data without fan is used here. 5) Nameplate info recorded on engines as 3306DI and on generators as 150KW prime. Both gensets have skid mounted fan. 150 KW prime with fan corresponds to a 3306TA. 3306TA data without fan is used here. 8) Two gensets nameplate info recorded as 3304DT however AVEC data lists 3304B at 192HP/128KW peak which exceeds manufacturer's standby data. Both gensets have skid mounted fan. 3304T data without fan is used here. + At Russion Mission, nameplate info recorded on engine as Cummins LTA10 and on generator as 110KW prime. Typical AVEC data for LTA10 is 276HP/189KW and for LTA10L (low speed 1200 rpm) is 184HP/126KW peak. Only output data available for fuel & power is from one publication and heat output at 1800 rpm only from another. They are very questionable. Values used are all calculated from 1800 rpm values reduced proportionally from 235HP to 166HP (which corresponds to 110KW prime). At White Mountain, nameplate info recorded on engine as Cummins LTA10 and on generator as 140KW prime. This is a 1200 rpm genset. Values used are the same as described above. 9) Nameplate info recorded on engine as AC11000 and on generator as 150KW prime. Typical AVEC data for AC11000 is 195HP/130KW peak. This is an 1800 rpm genset. Only output data available is for fuel vs. generated KW electrical power from one publication and heat output at 2200 rpm only from another (constant 32 btu/bhp-min.). Fuel vs. engine power is given in the 2nd publication and does not correlate well with 1st publication. All values are very questionable. Except for fuel vs. generated KW electrical power, all values used are calculated. | [ | | 10) Nameplate info recorded on engines as AC2900 and AC3500. These are 1800 rpm gensets. Typical AVEC data for AC3500 is 159HP/105KW peak however this genset reportedly does not meet normal weekday loads which peak at less than 9OKW. The AC2900 is even smaller. For purposes of this report the gensets are treated as DES-60 and DES-50, respectively. These gensets use the AC2900 engine. For each genset onl output data available is for fuel vs. generated KW electrical power from one publication and heat output at 2600 rpm only and 2400 rpm only , respectively from another (constant 32 btu/bhp-min.). Fuel vs. engine power is given in the 2nd publication and does not correlate well with 1st publication. All values are very questionable. Except for fuel vs. generated KW electrical power, all values used are calculated. a | el Page 4 PIPELOSS.XLS [aa BURIED PIPING, SINGLE PIPE, 3" PU INSULATION K=| 0.014| Btu/ft-hr-°F) R=|In(Do/Dp)/2:Pi-K Qh-=| (Tp-Toy/R To= 0|°F (ground Tp=| 180) °F (fluid) Pipe Size| Type! Dp (in) Do(in)| A(fthr-°F} QA(Btu' (inches) /Btu) Anr-ft) 1JIPS 1.32) 7.32} 19.5) 9.2! i 1.25|IPS 1.66) 7.66 17.4) 10.4 1.9 7.9) 16.2) 11.1 2.38] 8.38 14.3 12.6 TI IPS 35 95 11.4) 15.9] i 4[IPS 45 10.5 o6| 18.7 sips | 5.56| ‘11.56 8.3| 21.6 6lIPS 663, 12.63) 73| 246 SiIPS 8.63 14.63 6.0 30.0) BURIED PIPING, SINGLE PIPE, 2" PU INSULATION 1IPS 1.32 5.32! 15.8 11.4 -25|IPS 1.66 5.66) 13.9 12.9 SIPS 1.9 5.9) 12.9 14.0) | 2iiPs 2.38 6.38) 11.2) 16.1 | [IPS 3.5 75 8.7] 20.8) C | 4/IPS 45 8.5 7.2! 24.9] | S|IPS 5.56 9.56 6.2 29.2) 6 6.63] 10.63) 5.4) 33.5) | le [ABOVE GRADE PIPING, SINGLE PIPE, 1.5" FG INSULATION K=|_0.023| Btufthr-°F| R=|In(Do/Dpy2-Pir-K Qi-=|(Tp-ToyR To=| _ 80|°F (room) T Tp=|_180|°F (fluid) 1IPS 1.32 4.32 a2 12.2! 1.25/|PS 1.66] 4.66 7A 14.01 1.S|IPS 19 49 66 15.3 cL I 2iIPS 2.38) 5.38 56) 17.7|_ 3|IPS 35 65 43) 23.3 4|IPS 45 75 35) 28.3 S|IPS 5.56) 8.56 3.0 33.5] 6IPS 6.63 9.63 26, 38.7 8 8.63, 11.63 24 48.4) IPING, SINGLE PIPE, NO INSULATION (Qi from ASHRAE Fundamentals (1989), Chapter 22, Table 9 & 10 To=| _80|°F (room) | _ Tp=|_180|°F (fluid) Pipe Size|_ Type! Dp (in)| —_ QA(Btu! inches /or-ft) a 1.32) 39 T [aan 1.25] IPS. 1.66 110 1.5/IPS 1.9) 124 2iips_ | 2.38 152| Sips | 3.5] 216 | 4{iPs 45 272| | 5|IPS 5.56 330) [ 6[IPS 6.63 387 [IPS 8.63] 493 CAPACITY.XLS WASTE HEAT SYSTEM - HEAT TRANSFER COMPONENT CAPACITY REQUIREMENTS. COLD BAY COLDEST MONTH = JAN.| HDD =| 1126 4 Tave = 65 - (HDD / 31) = 29/°F PRACTICAL MINIMUM = O|°F RATIO ave temp diff - max temp diff =| (70 - 0) / (70 - 29) = 1 Example: |DOT/PF Shop: 681/gal / month worst month __| =] 1.7|multiplier j 31|days / month / 24/hours / day 1.56/gal / hour worst hour “| 140000/btu 7 gal 7 0.75\ eff. | 163000|btu / hour heating unit required | | FACTOR capacity - fuel use = 163000 / 681 = 240|** | | FLUID FLOW @ 20°F TEMP. DROP =| 163000 / (20 * 460) = 18/gpm | | FACTOR capacity - flow = 20 * 460 = 9200|** HOONAH COLDEST MONTH = JAN.|__ HDD = 1087} | Tave =' 65 - (HDD / 31) = 30)°F PRACTICAL MINIMUM = O|°F RATIO ave temp diff - max temp diff =| (70 -0)/(70- 30) = 1.8|"" L. KALSKAG COLDEST MONTH =JAN.| HDD = 2000| ave | R. MISSION ANVIK Tave=| _65-(HDD/31) = O|°F KOTLIK W. MOUNT. PRACTICAL MINIMUM = -40|°F RATIO ave temp diff - max temp diff = |(70 - (-40)) / (70 - 0) =] 1.6|"" CONCLUSION: USE OVERALL TYPICAL FACTORS AS FOLLOWS: RATIO ave temp diff - max temp diff = 1.7| L OVERALL FACTOR capacity - fuel use = 240) OVERALL FACTOR capacity - flow = 9200) | Page 1