This paper reports an experimental research of a new type of air source heat pump system in winter. This system can not only operate efficiently in winter

but also improve the performance in summer operation. Through constructing the heat pump system experimental platform

the effects of outdoor air dry bulb temperature

humidity

heat water temperature

heat water flow rate

solution flow rate

solution mass fraction and outdoor air flow rate in winter conditions on system supply heat model performance and the effects of solution flow rate

solution temperature and air flow rate in winter conditions on system regeneration model performance can be acquired. It is concluded that the supply heat model COP of air source heat pump air conditioning system increases with the decrease of heat water temperature

the increase of outdoor air dry bulb temperature

heat water flow rate

and solution flow rate. The effects of humidity and solution mass fraction on system supply heat model performance can be ignored. The regeneration model COP of air source heat pump air conditioning system increases with the decrease of solution temperature

the increase of air flow rate and solution flow rate. At the condition of experimental

the supply heat model COP of system can reach 3.11 and regeneration model COP can reach 4.03

more than the COP of traditional reverse cycle defrosting air source heat pump. The system heating integrated COP is improved in the test conditions compared with the reverse cycle defrosting system. The experiment proves that the system is suitable for low temperature and high humidity areas.