International Journal of Photoenergy / 2015 / Article / Tab 9

Research Article

Solar Thermal System Evaluation in China

Table 9

Test results for a solar water heating system.

NumberAmbient temperature
°C
Solar irradiation
MJ/m2
Useful heat gain
MJ
Total energy consumption
MJ
Efficiency of solar collecting systemSolar energy fractionConsumed hot water
m3

125.97.82239.4697.20.330.347.81
227.312.74474.1977.30.400.497.54
328.420.48942.3941.60.501.007.93
430.217.96839.4838.60.511.008.05