Can I Keep the Air Conditioner Running While Parked?

[McJames]

It has an impact on the car. In the long run: It can easily damage the engine. And it is expensive. Essentially: Car air conditioners and ordinary household air conditioners use the heat pump principle, adjusting the air temperature inside the car based on changes in the refrigerant state and the conversion of latent and sensible heat. The working process is (starting from the compressor inlet): Low-temperature and low-pressure gas enters the compressor: Because the volume decreases, the pressure increases, the temperature rises, turning it into high-temperature and high-pressure gas. High-temperature and high-pressure gas enters the condenser: The condenser is a highly efficient heat exchanger that can use external air to heat the refrigerant and convert it into high-temperature and high-pressure liquid. High-temperature and high-pressure liquid passes through the expansion valve: Through the action of the throttle expansion valve, it is converted into low-temperature and low-pressure atomized liquid. Low-temperature and low-pressure liquid enters the evaporator: The evaporator has a similar structure to the condenser, but at this time, due to low pressure and low boiling point, it will absorb heat from the external air and evaporate into low-pressure and low-temperature gas.