Simulation Of A Air Liquid Combined Heat Exchanger

Abstract Air liquid composite heat exchanger can implement refrigerant combined heat exchange synchronization with liquid and air heat source. This article has established steady state mathematical model of the heat exchanger, and simulation the solar air double heat sources combined heat pump performance with the air liquid combined heat exchanger. Results show that the performance of the solar-air double heat sources composite heat pump is improved significantly by single air source heat pump in heating under various conditions. When the outdoor air temperature is about 1.5°C, the dual heat-source heat pump heating capacity and COP can reach single air-source heat pump. When the outdoor temperature is -15°C, dual heat-source heat pump heating capacity and COP are further increases, heating capacity increase nearly 40%, COP increase nearly 30%.