What Happens When Car Air Conditioning Pressure is Too High?
1 Answers
High pressure in a car's air conditioning system can lead to reduced cooling efficiency, increased working pressure on the compressor causing it to overheat, and may result in the compressor not working or operating intermittently. Below is the working process of a car's air conditioning system: 1. Compression Process: The compressor draws in low-temperature, low-pressure refrigerant gas from the evaporator outlet and compresses it into high-temperature, high-pressure gas before discharging it. 2. Heat Dissipation Process: The high-temperature, high-pressure superheated refrigerant gas enters the condenser, where it condenses into a liquid due to the reduction in pressure and temperature, releasing a significant amount of heat. 3. Throttling Process: The refrigerant liquid, which is at a higher temperature and pressure, passes through the expansion device, causing its volume to increase and its pressure and temperature to drop sharply, exiting as a mist (fine droplets). 4. Heat Absorption Process: The mist-like refrigerant liquid enters the evaporator, where, because the refrigerant's boiling point is much lower than the temperature inside the evaporator, it evaporates into a gas. During this evaporation process, it absorbs a large amount of surrounding heat, after which the low-temperature, low-pressure refrigerant vapor re-enters the compressor.
