Experimental study on heat storage-evaporator air-source heat pump in low temperature environment

Develops a prototype of the air source heat pump system with the phase change heat storage, and performs the experimental study and performance analyses of the prototype. The unit can operate in three modes of heat charge, heat discharge and defrosting. The test results show that the heating COP of the system is 1.94 and the heating capacity can meet the heating needs of consumers even in the ultra-low -30 ℃ temperature environment, the exhaust gas temperature from the compressor is 105 ℃.