The automotive air conditioning refrigeration cycle consists of four processes
Compression process: The compressor turns the gaseous refrigerant from the evaporator into superheated refrigerant gas and sends it to the condenser for cooling.
Condensation process: The superheated gaseous refrigerant in the condenser is cooled by air, and in the later stage of the condensation process, the refrigerant becomes a supercooled liquid refrigerant, and the air temperature flowing through the condenser rises.
Expansion process: The condensed liquid refrigerant becomes larger after the expansion valve, and its pressure and temperature drop sharply into vapor in order to enter the evaporator for rapid heat evaporation.
Evaporation process: The wet steam continues to absorb heat and vaporize, becoming a gas refrigerant, so that the air temperature flowing through the generator is reduced. The gaseous refrigerant flowing out of the evaporator is sucked into the compressor, so that the refrigeration system uses the limited refrigerant in the closed refrigeration system to repeatedly compress, condense, expand, and base the refrigerant to cool the air in the car.
