Project Report:
14 x ThermoPower-VHP30 Total Gross Surface Area: 738.50 sq.ft Azimuth: 10 Incl.: 37 2100 gal/day 130 F Gas Boiler - 9 150 kbtu/hr StorMaxx NP Vol:2500 gal Existing Hot Water Heater Vol:1000 gal Results of Annual Simulation Installed Collector Power: Installed Gross Solar Surface Area: Collector Surface Area Irradiation (Active Surface): Energy Produced by Collectors: Energy Produced by Collector Loop: 163.87 kbtu/hr 738.5 sq.ft 240.25 MMBTU 177.60 MMBTU 176.84 MMBTU DHW Heating Energy Supply: Solar Contribution to DHW: Energy from Auxiliary Heating: 452.83 MMBTU 173.54 MMBTU 288.94 MMBTU Propane Gas Savings: Propane Gas Savings: CO2 Emissions Avoided: DHW Solar Fraction: Fractional Energy Saving (EN 12976): System Efficiency: 571.29 kbtu/sq.ft 422.32 kbtu/sq.ft 420.51 kbtu/sq.ft 3,022.7 m³ 2,680.26 therm 39,696.95 lbs 37.5 % 37.7 % 72.2 % Page 2
Basic Data Climate File Location: Climate Data Record: Total Annual Global Radiation: Latitude: Longitude: Washington DC "Washington DC" 5.46 MMBTU 38.98 77.47. Domestic Hot Water Average Daily Consumption: Desired Temperature: Load Profile: Cold Water Temperature: Circulation: 2100 gal 130 F Multiple Dwelling February:55 F / August:63 F No System Components Collector Loop Number: Total Gross Surface Area: Total Active Solar Surface Area: Tilt Angle: Azimuth: ThermoPower-VHP30 14.00 738.5 sq.ft 420.56 sq.ft 37 10. DHW Standby Tank Volume: T*SOL Database Existing Hot Water Heater 1000 gal Solar Preheating Tank Volume: Inc. StorMaxx NP 2500 gal. Auxiliary Heating Nominal Output: T*SOL Database Gas Boiler - 9 150 kbtu/hr Legend Original T*SOL Database With Test Report Solar Keymark Page 3
Solar Energy Consumption as Percentage of Total Consumption 11,000,000 10,000,000 [ Btu ] per week 9,000,000 8,000,000 7,000,000 6,000,000 5,000,000 4,000,000 3,000,000 2,000,000 Feb Mar Apr May Jun Jul Solar Contribution 174,182,890 Btu Aug Sep Oct Nov Dec Total Energy Consumption 464,197,681 Btu Daily Maximum Collector Temperature 135 130 125 120 115 [ F ] 110 105 100 95 90 85 80 75 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec These calculations were carried out by - the Simulation Programme for Solar Thermal Heating Systems. The results are determined by a mathematical model calculation with variable time steps of up to 6 minutes. Actual yields can deviate from these values due to fluctuations in climate, consumption and other factors.the system schematic diagram above does not represent and cannot replace a full technical drawing of the solar system. Page 4
Energy Balance Schematic Legend 1 1.1 1.2 2 2.2 2.5 2.6 3.1 3.3 4.1 6 6.1 6.5 9 Collector Surface Area Irradiation (Active Surface) Optical Collector Losses Thermal Collector Losses Energy from Collector Array Solar Energy to Preheating Tank Internal Piping Losses External Piping Losses Tank Losses Preheating Tank to Tank Tank Losses (S) Final Energy Supplementary Energy to Tank Heating Element DHW Energy from Tank Page 5 2,411 therm 470 therm 15,871 kbtu 1,783 therm 1,775 therm 509 kbtu 253 kbtu 9,627 kbtu 1,742 therm 3,238 kbtu 4,088 therm 2,900 therm 0 kbtu 4,545 therm
Glossary 1 1.1 1.2 2 2.2 2.5 2.6 3.1 3.3 4.1 6 6.1 6.5 9 Collector Surface Area Irradiation (Active Surface) Energy Irradiated onto Tilted Collector Area (Active Solar Surface) Optical Collector Losses Reflection and Other Losses Thermal Collector Losses Heat Conduction and Other Losses Energy from Collector Array Energy Output at Collector Array Outlet (i.e. Before the Piping) Solar Energy to Preheating Tank Collector Array Energy Minus Piping Losses Internal Piping Losses Internal Piping Losses External Piping Losses External Piping Losses Tank Losses Heat Losses via Surface Area Preheating Tank to Tank Heat from Preheating Tank to Tank Tank Losses (S) Heat Losses via Surface Area Final Energy Final Energy Current into System. This can flow in as natural gas, oil or electricity (not including solar energy) taking efficiency levels into account Supplementary Energy to Tank Supplementary Energy (e.g. Boiler) to Tank Heating Element Energy from Heating Element DHW Energy from Tank Heat for DHW Appliances from Tank (Exluding Circulation) Page 6 Report-/Druckmodul List & Label Version 13: Copyright combit GmbH 1991-2007