The Studying of the Operation Mode of the Solar-Air Dual-Source Heat Pump

The problems such as the easily frosting of the evaporator and the poor system performance in low outdoor temperature can be effectively solved with the solar-air dual-source heat pump technology. In this paper, based on the previous working of the research group, the steady distributed parameter method has been adopted to establish the mathematical model of a new solar-air dual-source heat pump system. The operation characteristics of three heating operation modes which are single air source mode, solar-air dual-source mode and single solar mode have been studied with the mathematical simulation method, and the optimal operation mode in different work conditions has been obtained.