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Hybrid Systems & Responsible Design

Hybrid Systems & Responsible Design. Professional Report. Claybank Detention Laundry . Solar Preheat. Facility. Location of the system. USA. CA Fairfield. Longitude: -121.93°. Latitude: 38.27°. Elevation: 13 ft. This report has been created by:. Lochinvar Corporation. Paul Rohrs.

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Hybrid Systems & Responsible Design

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  1. Hybrid Systems & Responsible Design

  2. Professional Report Claybank Detention Laundry  Solar Preheat Facility

  3. Location of the system USA CA Fairfield Longitude: -121.93° Latitude: 38.27° Elevation: 13 ft This report has been created by: Lochinvar Corporation Paul Rohrs 300 Maddox Simpson Pkwy 37090 Lebanon 615-889-8900

  4. Professional Report System overview (annual values) Total fuel and/or electrical energy consumption of  1,423,363.5 kBtu the  system [Etot] Total energy consumption [Quse] 2,549,837 kBtu System performance (Quse / Etot) 1.79 Comfort demand Energy demand covered Overview solar thermal energy (annual values) Collector area 3,907 ft² Solar fraction total 47.3% Total annual field yield 1,217,434 kBtu Collector field yield relating to gross area 312 kBtu/ft²/Year Collector field yield relating to aperture area 347 kBtu/ft²/Year Max. fuel savings 1,224,502.8 ft³: [Natural gas H] Max. energy savings 1,242,279.5 kBtu Max. reduction in CO2 emissions 185,884.9 pound

  5. Energy flow diagram

  6. Professional Report System overview (annual values) Total fuel and/or electrical energy consumption of  1,423,363.5 kBtu the  system [Etot] Total energy consumption [Quse] 2,549,837 kBtu System performance (Quse / Etot) 1.79 Comfort demand Energy demand covered Overview solar thermal energy (annual values) Collector area 3,907 ft² Solar fraction total 47.3% Total annual field yield 1,217,434 kBtu Collector field yield relating to gross area 312 kBtu/ft²/Year Collector field yield relating to aperture area 347 kBtu/ft²/Year Max. fuel savings 1,224,502.8 ft³: [Natural gas H] Max. energy savings 1,242,279.5 kBtu Max. reduction in CO2 emissions 185,884.9 pound 1,224,502 cubic feet 1,000 btu’s cubic feet and 100,000 btu’s in a therm Savings1,224,502 ÷ 100 = 12,245 Therms of Nat Gas Annually Simple Payback !!!!

  7. Simple Payback • 12,245 therms @ $1.10 therm = $13,469.00 • $260,000 List Price – Solar Equipment Only • California Rebate $12.82 per therm displaced • $12.82 x 12,245 - $156,980 • $260,000 - $156,980 = $103,020.00 • $103,020.00 ÷ $13,469.00 = 7.65 Years

  8. Tax Credits

  9. Tax Credits

  10. www.Dsireusa.org

  11. Professional Report System overview (annual values) Total fuel and/or electrical energy consumption of  1,423,363.5 kBtu the  system [Etot] Total energy consumption [Quse] 2,549,837 kBtu System performance (Quse / Etot) 1.79 Comfort demand Energy demand covered Overview solar thermal energy (annual values) Collector area 3,907 ft² Solar fraction total 47.3% Total annual field yield 1,217,434 kBtu Collector field yield relating to gross area 312 kBtu/ft²/Year Collector field yield relating to aperture area 347 kBtu/ft²/Year Max. fuel savings 1,224,502.8 ft³: [Natural gas H] Max. energy savings 1,242,279.5 kBtu Max. reduction in CO2 emissions 185,884.9 pound 1,217,434 x 1000 = 1,217,434,000 Annual BTU’s to system 1,217,434,000 ÷ 365 days = 3,335,435 BTU’s / Day 3,335,435 BTU’s/Day ÷ 3907 sq/ft = 853 BTU’s sq/ft

  12. Professional Report Component overview (annual values) Boiler 3ea KBN801 Knight Boilers Power kBtu/hr 2,400 Total efficiency % 95.4 Energy from/to the system [Qaux] kBtu 1,354,557.4 Fuel and electrical energy consumption [Eaux] kBtu 1,419,401.9 Energy savings solar thermal kBtu 1,242,279.5 CO  savings solar thermal pound 185,884.9 ₂ Fuel savings solar thermal ft³ 1,224,502.8 Collector North America Lochinvar-TiSun SCH130 Data Source SRCC Number of collectors 30 Number of arrays 15 Total area ft² 3,907.3 Total aperture area ft² 3,506.882 Tilt angle ° 37 Orientation ° 0 Collector field yield [Qsol] kBtu 1,217,433.9 Irradiance onto collector area [Esol] kBtu 2,472,263.5 Collector efficiency [Qsol / Esol] % 49.2 Direct irradiance after IAM kBtu 1,527,740.4

  13. 10,206 x 8.33 x ∆T (80) = 6,801,278 Btu’s/day 2,549,837,000 ÷ 365 = 6,985,854 Btu’s/day Hot water demand Constant Withdraw volume gal/d 10,206.2 Temperature setting °F 140 Energy from/to the system [Quse] kBtu 2,549,837 Pump Pump, large Circuit pressure drop psi 9.287 Flow rate gpm 12 Fuel and electrical energy consumption [Epar] kBtu 3,961.7

  14. Professional Report Storage tank 1 SWG2500 with tube bundles Volume gal 2,500 Height ft 10 Material Steel Insulation Rigid PU foam Thickness of insulation in 3.1 Heat loss kBtu 3,349 Connection losses kBtu 197.2 Storage tank 2 SWG2500 with tube bundles Volume gal 2,500 Height ft 8 Material Stainless steel Insulation Rigid PU foam Thickness of insulation in 3.1 Heat loss kBtu 12,887.2 Connection losses kBtu 1,231.6 Loop Solar loop Fluid mixture Propylene mixture Fluid concentration % 33.3 Fluid domains volume gal 98.9 Pressure on top of the circuit psi 58.016

  15. Professional Report Solar thermal energy to the system [Qsol] kBtu Heat generator energy to the system (solar thermal energy not included) [Qaux] kBtu

  16. Solar fraction: fraction of solar energy to system [SFn] %

  17. Professional Report Total fuel and/or electrical energy consumption of the system [Etot] kBtu Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Solar thermal energy to the system [Qsol] kBtu 1217434 54062 70364 99654 111551 126862 126303 139046 136711 121281 107057 70755 53788 Heat generator energy to the system (solar thermal energy not included) [Qaux] kBtu 1354557 164237 129312 124059 105719 97038 88092 79841 78971 85047 105274 135477 161490

  18. Heat generator fuel and electrical energy consumption [Eaux] kBtu 1419402 171081 135014 129857 110918 102084 92817 84326 83390 89567 110541 141536 168271 Solar fraction: fraction of solar energy to system [SFn] % 47.3 24.8 35.2 44.5 51.3 56.7 58.9 63.5 63.4 58.8 50.4 34.3 25 Total fuel and/or electrical energy consumption of the system [Etot] kBtu 1423364 171321 135286 130181 111260 102480 93226 84749 83780 89904 110860 141810 168506 Irradiance onto collector area [Esol] kBtu 2472264 117525 147190 201732 228805 253925 250411 271280 270725 253312 221950 142487 112921 Electrical energy consumption of pumps [Epar] kBtu 3962 241 272 323 343 396 409 423 390 336 319 274 235 Heat loss to indoor room (including heat generator losses) [Qint] kBtu 90937 8695 7535 7938 7379 7390 7058 6973 6903 6842 7536 8037 8650 Total energy consumption [Quse] kBtu 2549837 216600 198204 221807 215544 221787 212339 216582 213743 204549 210393 204543 213747

  19. Professional Report Collector North America Daily maximum temperature [ °F]

  20. Practical Exercise • Responsibly Design Systems • Practical DHW • Space Heating • Combi System with Stratotherm + • Net Zero

  21. Practical Exercise • Responsibly Design Systems • Practical DHW • Space Heating • Combi System with Stratotherm + • Net Zero

  22. Net Zero Project – Ft. Carson

  23. Net Zero Project – Ft. Carson

  24. DHW & Space Heating

  25. Questions? Solar@Lochinvar.com

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