Abstract
Aluminum roll-bond panels bonded with crystal silicon solar modules were used as the evaporator of a heat pump. The rated capacity of the compressor was 250W and the total area of the panels was 1.91m^2. The coefficient of performance around noon was 5.2 when the ambient and water temperatures were 10℃ and 30℃, respectively. The electric power generated was about 170W when the solar radiation intensity was 800W/m^2. The electric conversion efficiency of the modules increased 20 to 30% by the cooling effect of evaporation. The analytical results of COP using the plate factor of 0.75 agreed well with the experimental results.