Application of solar heat pump in cold regions of ChangChun China

In the refrigeration-heating technology of energy-saving air conditioner, heat pumps increasingly become the focus of research and application in China. Combining the heat pump technology with solar thermal can improve the efficiency of solar collectors and heat pump system performance; meanwhile addresses the all-weather heating problem. Therefore, this paper discusses the technical principle of solar heat pump and the application and the current research situation in providing hot water.