Performance Studies on a Novel Solar PV/T-air Dual Heat Source Heat Pump System

AbstractA novel solar PV/T-air dual heat source composite heat pump system was developed and the experimental platform was built to research the instantaneous performance. The experimental results show that the maximum instantaneous generating efficiency of solar PV/T collecting circulation of the system could achieve 15.0% and average heat collecting efficiency was 43.8% when average ambient temperature and solar irradiance were 6.5°C and 581.5W/m2. Heat distribution average ratio of solar, air and compressor at the run time were 28.1%, 35.7% and 36.2% respectively. Heat pump instantaneous COP changed between 2.0 to 2.6 and the average value was 2.5, which indicated that the system performance was relatively well