Working process of thermal management refrigeration cycle
The refrigeration cycle's working process can be summarized into four main stages: evaporation, compression, condensation, and expansion.
Evaporation stage: In the evaporator, the low-temperature and low-pressure refrigerant liquid absorbs heat from the surrounding environment through evaporation and converts it into steam. During this process, the temperature of the evaporator and its surrounding environment will be significantly reduced.
Compression stage:
The evaporated refrigerant vapor is sucked into the compressor and compressed into high-temperature and high-pressure gas. During this process, the temperature of the refrigerant rises sharply.
Condensation stage:
After the high-temperature and high-pressure refrigerant gas enters the condenser, it releases heat through heat exchange with the external environment and condenses into a high-pressure liquid. During this process, the temperature and pressure of the refrigerant decrease.
Expansion stage:
The high-pressure liquid refrigerant is throttled and decompressed through the expansion valve and then enters the evaporator, where it begins the evaporation and heat absorption process again. During this process, the temperature and pressure of the refrigerant are significantly reduced to prepare for a new cycle.
The refrigeration cycle is not limited to the compression refrigeration cycle mentioned above but also includes various types such as absorption refrigeration cycle, adsorption refrigeration cycle, vapor injection refrigeration cycle, and semiconductor refrigeration. These different types of refrigeration cycles each have their own characteristics and application scenarios and constitute a rich refrigeration technology system.
