Numerical and Experimental Study on Energy Performance of Photovoltaic-Heat Pipe Solar Collector in Northern China

Table 2

List of testing modes.

Mode	Solar radiation (W/m^2)	Water flow rate (L/min)	Water temp. at the inlet of manifold (°C)
A		6	20, 23, 26, 29, 32, 35, 38, 41, 44
B	500, 600, 650, 700, 815	6
C		5, 7, 9