|Energy Calculator||Collector Sizing||CO2 Emissions||Installation Basics|
You can also use these values to help you calculate how much energy you can save by using an JIXIANG solar collector.
In order to calculate energy output you must input the following variables:
Energy must be input in the unit kWh/m2/day. 1 kWh/m2/day = 317.1 Btu/ft2/day
Collector Size - You must enter the collector size in absorber surface area.
The absorber surface area of the various tubes sizes are as follows:
- 58/1800 = 0.08m2 per tube. Therefore an JIXIANG AP 20 tube = 1.6m2 absorber area
- 58/1500 = 0.067m2 per tube
(may need to convert from m3 or Therms)
1 therm = 29.3kWh = 100,000Btu = 105.5MJ
Natural Gas is 39MJ/m3 = 10.83 kWh/m3
LPG Propane (liquid) = 25.3MJ/L = 7kWh/L
LPG Propane (gas) = 93.3MJ/m3 = 25.9kWh/m3