Public Energy Alternative Software
Simple Solar Energy Calculator for water heating
Object name Location GdanskIgnalinaKrakowKraslavaLahtiMustveeRigaRougeWarsawWildauWittenbergeYlivieska Slope [degr] optimal45090 Azimuth SSESWEW
Remarks:
All data should be entered with a dot separator rather than a comma. Slope (inclination) is the angle between the plane of the solar collector and the horizontal axis. If a panel is lying flat, then the slope angle is 0 degr. Azimuth angle (orientation) means the deflection of the collector axis from south direction, so the angle of the collector, which is pointed exactly south is 0 degr. (east -90 degr.). You can always edit the data and confirm it pressing button calculate.
Solar thermal system :
Fuel consumption for water heating
What kind of fuel do you use for water heating at present ? How much is fuel consumed for it in a month ?
Coal [kg/month] or Oil [l/month] or Electricity [kWh/month] or Natural gas [m³/month]
Hot water usage
How much hot water do you use per month and how much does it cost you ?
Hot water [m³/month] Monthly costs [local currency]
Water parameters
Enter the temperature of hot and cold water in your tap
Cold water temperature [ºC] Hot water temperature [ºC]
I plan to install this solar thermal system
Surface of collectors absorber [m²] Number of collectors Optical efficiency [%]
Value k1 [W/m²/K] Value k2 [W/m²/K²] Heat exchanger and DHW circulation losses [%]
You system supplier should give you detailed information about linear heat correction value k1 , nonlinear heat correction value k2 and other important parameters.
You can use the standart parameters: Flat-plate collector ; optical_efficiency=80%, k1=4 W/(m²K), k2=0,01 W/(m²K²) Vacuum tube collectors ; optical_efficiency=80%, k1=1,5 W/(m²K), k2=0,005 W/(m²K²)
Total cost of instalation [local currency] (1)
