Car air conditioning location: The compressor is installed on the engine and driven by the engine crankshaft belt; the condenser is installed behind the front grille of the car to dissipate heat. Working principle of car air conditioning: The high-temperature and high-pressure refrigerant from the compressor enters the condenser through the high-pressure hose. Because the outside temperature is lower than the refrigerant temperature entering the condenser, with the help of the condenser fan, a large amount of heat from the refrigerant in the condenser is carried away by the outside air, causing the high-temperature and high-pressure gas to condense into a high-temperature and high-pressure liquid. When the high-pressure liquid flows through the throttle expansion valve, due to the throttling effect, its volume suddenly increases, the pressure drops, and it turns into a low-temperature and low-pressure mist (liquid) that enters the evaporator for constant-pressure evaporation. Since the temperature of the evaporating refrigerant inside the tube is lower than that of the circulating air outside the evaporator tube, it can automatically absorb heat from the air outside the tube, thereby reducing the temperature of the air flowing through the evaporator and producing a cooling effect. The vaporized refrigerant is sucked into the compressor and compressed into a high-temperature and high-pressure gas, which is then sent to the condenser through the high-pressure hose, completing the thermodynamic cycle of the refrigeration system.
