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Home My WebLink About3 SUBMITTAL ILIAMNA ILIAMNA Iliamna Wood Boiler Study RBA Job No. LP-02 June 1, 2010 The following buildings were considered as potential sites for wood boiler application: A. Bldg. #26, IVC Office/Warehouse: This is a 40’ X 60’ steel building with offices on the first and second floor are at one end. The other end is used for warehouse space. The boiler is a System 2000, model EF-2F, up to 200 MBH output and is connected to a fuel tank on the exterior. The warehouse has two (2) unit heaters and the offices have baseboard. The heating pump is Taco, Model 001-BFD with two zone valves. The HGS/R piping from the wood boiler will be connected to the existing hydronic heating system. B. Bldg. #26A, IVC Shop: The shop building does not have any offices. It is heated by a Weil McLain Gold boiler and the piping goes to radiant floor heat. In addition, a waste oil heater is also used. It is an Energy Logic, Model EL-200H and is wall-mounted, 8’ AFF. The HGS/R piping from the wood boiler will be connected to the existing hydronic heating system only. C. Unheated Shed: The unheated shed is used for storage. This building will be provided with heat from the wood boiler as well as oil fired backup heat. The backup oil heaters are not included in the economic analysis. D. Wood Boiler \ Wood Shed: One wood boiler will supply all three (3) buildings. The heat from the wood boiler will be delivered via arctic pipe. The wood shed will have storage capacity for 60% of the annual wood demand. Its roof will extend over the boiler and operating area. The wood boiler and shed will be secured by a 6’ high chain link fence. Economically, this option has a slower payback since there are three (3) arctic pipe connections between wood boiler and buildings. Further, hydronic heating equipment needs to be provided for the currently unheated shed. Also, two (2) connections to existing heating systems including heat exchanger, piping, etc. are needed. Assumptions: Wood Energy Content - Assumed to be air dried to 20% moisture. Spruce wood including 10% dead trees Wood Boiler-Central E Classic 2400 PROJECT:LP-02, HELE WOOD BOILER DATE:LOCATION:Iliamna, AlaskaINSIDE TEMP:65HEAT DEG DAYS11456(Climate Data from King Salmon)WINTER DESIGN TEMP(99.6%):-24CALC BY:Engineer JOB NO.:LP-02MAINTENANCE SHOP, FIREHALL & SHEDFuel Type Fuel UnitFuel Price Per Unit ($)Fuel Heat Content Per Unit (Btu)Fuel Price Per Million Btu ($)Heating Appliance TypeType of Effic. Rating Effic. (%)Fuel Cost Per Million Btu ($)Fuel Oil (#2)Gallon$6.00138,690$43.26BoilerAFUE78%$55.46Gallon$6.50138,690$46.87BoilerAFUE78%$60.09Gallon$7.00138,690$50.47BoilerAFUE78%$64.71Wood (Spruce)Cord$250.0017,000,000$14.71BoilerManuf.90%$16.3420% MoistureCord$375.0017,000,000$22.06BoilerManuf.90%$24.51Cord$500.0017,000,000$29.41BoilerManuf.90%$32.68FUEL CONSUMPTION AND WOOD EQUIVALENTFacilityHeat Loss (Btu/Hr)Annual Fuel Oil Demand (Gal/Yr)Ratio (Wood/ Oil)Annual Wood Demand (Cords/Yr)Suggest. Wood Boiler Load (Btu/Hr)Burn Time Model Eclass 2400 FacilityWood Vol. (Cf)60% Of Wood Stored Under Shed Max Stack Height (Ft)Shed Floor Area (Sf)Shed Floor Area (Sf)Maint. Shop35,018100090%7.335,018All Bldgs4,0762,4456407.620Firehall70,035200090%14.770,035Shed46,800133690%9.846,800Total151,853433631.8151,8538.00$6.00$6.50$7.00$250.00$375.00$500.00LowMediumHighLowMediumHighAll Bldgs$26,019$28,187$30,355$7,960$11,940$15,920$10,099$16,247$22,395$185,03618118*Unheated shed to be equipped with oil heaters,system; Unheated Shed - Install new hydronic unit heaters* Wood Energy Content - Assumed to be air dried to 20% moisture. which is not included in economic analysis*Shop & Firehall - Connecting wood boiler heat to existing hydronic hePayback (Yrs)Invest Cost ($)Annual Wood Cost ($) @ ($__/Cord)FacilityPotential Gross Savings ($)Wood Boiler-Central E Classic 2400Annual Fuel Oil Cost ($) @ ($__/Gal)6/2/2010*Spruce wood including 10% dead treesWOOD SHED DIMENSIONSECONOMIC ANALYSISHEATING FUEL COMPARISON OIL VERSUS WOODAssumptionsWood Boiler Heat Calcs 1 OF 1 JOB NO. & TITLE: LP-02, HELE WOOD BOILER DATE: BUILDING: VILLAGE COUNCIL&SHOPTYPE OF ESTIMATE: RFPSHEET: 1 OF 4____ ITEM & DESCRIPTION QTYUNIT MATL S/C UNIT TOTAL $/HR MATERIAL LABORSUBCONTRACT TOTALSTRUCTURAL SHED52,747$ MECHANICAL BOILER/SHED112,500$ ELECTRICAL BOILER SHED19,789$ GRAND TOTAL185,036$ Notes:1. Prices Based on 2011 Construction Season. JOB HOURSCLIENT: ILIAMNA, AK6/2/2010GENERAL ESTIMATING WORKSHEETTOTAL COSTTAKEOFF: __Michael HaukePRICED: ___Michael HaukeCHECKED: _Raj Bhargava, PEAPPROVED: __Raj Bhargava____UNIT COST JOB NO. & TITLE: LP-02, HELE WOOD BOILER DATE: BUILDING: VILLAGE COUNCIL&SHOPTYPE OF ESTIMATE: RFPSHEET: 2 OF 4____ ITEM & DESCRIPTION QTY UNIT MATL S/C UNIT TOTAL $/HR MATERIALLABORSUBCONTRACT TOTALWOOD AND BOILER SHED 600 SF 45.00$ 27,000$ FENCE 240 FT 7.50$ 1,800$ -$ -$ -$ -$ -$ -$ CONTINGENCY @ 10%2,880$ CONTRACTOR'S OH & P3,485$ Add, 10% & 10% GRAND TOTAL35,165$ For Iliamna, use a factor of 1.5 to cover remote working conditions150%ILIAMNA AREA LOCAL COST ESTIMATE =52,747$ Notes:1. Prices Based on 2011 Construction Season. The tabulated values are applicable to Anchorage; factor of 1.5X is applied for Iliamna. JOB HOURSCLIENT: ILIAMNA, AK6/2/2010GENERAL ESTIMATING WORKSHEETTOTAL COSTTAKEOFF: __Michael HaukePRICED: ___Michael HaukeCHECKED: _Raj Bhargava, PEAPPROVED: __Raj Bhargava____UNIT COST JOB NO. & TITLE: LP-02, HELE WOOD BOILER DATE: BUILDING: VILLAGE COUNCIL&SHOPTYPE OF ESTIMATE: RFPSHEET: 3 OF 4____ ITEM & DESCRIPTION QTY UNIT MATL S/C UNIT TOTAL $/HR MATERIALLABORSUBCONTRACT TOTALBOILER & HEATING EQUIPMENTCentral Boiler 1 EA 14,000.00$ 25 25 75 15,875$ Heat Exchangers 2 EA 400.00$ 5 2 75950$ Boiler stack 1 EA 500.00$ 4 4 75800$ Skid for boiler 1 CY 500.00$ 0.5 0.5 75538$ Circulation pump 1 LOT 180.00$ 3 3 75405$ Cabinet Unit heater 2 EA 1,300.00$ 2.5 5 75 2,975$ Baseboard 0 FT 75.00$ 0.5 0 75-$ Expansion Tank 1 EA 200.00$ 2 2 75350$ Strainer, ST-1 1 EA 150.00$ 2 2 75300$ Air seperator, AS-1 1 EA 350.00$ 2 2 75500$ Boiler Tekmar controls + startup 1 EA 1,000.00$ 10 10 75 1,750$ Thermostats 2 EA 100.00$ 0.5 1 75275$ Misc. equipment 1 EA 1,000.00$ 10 10 75 1,750$ Acrtic Pipe 250 FT 42.00$ 0.75 187.5 75 24,563$ (HDPE Jacket)SYSTEM PIPINGDistribution HWS/R piping, 1" 200 LF 10.50$ 0.3 60 75 6,600$ Distribution HWS/R piping, 1-1/2" 110 LF 12.00$ 0.3 33 75 3,795$ CONTINGENCY, OVERHEAD & PROFITCONTINGENCY @ 10% 6,143$ CONTRACTOR'S OH & P 7,432$ Add, 10% & 10% GRAND TOTAL75,000$ For Iliamna, use a factor of 1.5 to cover remote working conditions150%ILIAMNA AREA LOCAL COST ESTIMATE =112,500$ Notes:1. Prices Based on 2011 Construction Season. The tabulated values are applicable to Anchorage; factor of 1.5X is applied for Iliamna.JOB HOURSCLIENT: ILIAMNA, AK6/2/2010GENERAL ESTIMATING WORKSHEETTOTAL COSTTAKEOFF: __Michael HaukePRICED: ___Michael HaukeCHECKED: _Raj Bhargava, PEAPPROVED: __Raj Bhargava____UNIT COST JOB NO. & TITLE: LP-02, HELE WOOD BOILER DATE: BUILDING: VILLAGE COUNCIL&SHOPTYPE OF ESTIMATE: RFPSHEET: 4 OF 4____ ITEM & DESCRIPTION QTYUNIT MATLS/C UNIT TOTAL $/HR MATERIALLABORSUBCONTRACTTOTALMISC. MATERIAL 1 LOT 1,000.00$ 1,000$ 2" CONDUIT 0 LF 11.00$ -$ 3/4" CONDUIT 260 LF 5.00$ 1,300$ 4/C #3 AWG CONDUCTOR 0 LF 6.50$ -$ 3/C #12 AWG w/ GROUND 260 LF 8.50$ 2,210$ DISCONNECTS 3 EA 1,000.00$ 3,000$ 3/C #10 AWG w/ GROUND 180 LF 12.75$ 2,295$ CONTROLS 1 EA 1,000.00$ 1,000$ CONTINGENCY, OVERHEAD & PROFITCONTINGENCY @ 10%1,081$ CONTRACTOR'S OH & P1,307$ Add, 10% & 10% GRAND TOTAL13,193$ For Iliamna, use a factor of 1.5 to cover remote working conditions150%ILIAMNA AREA LOCAL COST ESTIMATE =19,789$ Notes:1. Prices Based on 2011 Construction Season. The tabulated values are applicable to Anchorage; factor of 1.5X is applied for Iliamna.2. Wiring includes 4% slack. JOB HOURSCLIENT: ILIAMNA, AK6/2/2010GENERAL ESTIMATING WORKSHEETTOTAL COSTTAKEOFF: __Michael HaukePRICED: ___Michael HaukeCHECKED: _Raj Bhargava, PEAPPROVED: __Raj Bhargava____UNIT COST