Prospect analysis of applying mixed heat pump system in the ″sanbei″ regions

There is a strong application demand of air-source heat pump in the ″sanbei″ regions of China,but the traditional air-source heat pump is quite difficult to be used in certain climate conditions of these areas. The authors once invented a kind of mixed heat pump system made up of air-towater heat pumps and water-to-water heat pumps,and also did some research by experiment.We first studied the system′s heating energy efficiency ratio(R_(EE)) and switch qualifications by analyzing experimental results.Then via BIN weather parameters and temperature frequency method,we simulated and calculated the system′s heating season performance factors(F_(HSP)) of nine cities chosen from the ″sanbei″ regions respectively.We then analyzed the system's application prospect and popularity value.