The working principle of automotive condenser

The role of the condenser is to convert the high-temperature, high-pressure gaseous refrigerant sent from the compressor into a liquid refrigerant, and the refrigerant dissipates heat in the condenser to change its state. Therefore, the condenser is a heat exchanger that dissipates the heat absorbed by the refrigerant in the car to the atmosphere through the condenser.

ac condenser

The condenser of a small car is usually installed in the front of the car (usually installed in front of the radiator) and is cooled by a fan (the condenser fan is generally shared with the radiator fan, and some models use a dedicated condenser fan).

The structure of the condenser is shown in the figure. It is mainly composed of pipes and cooling fins and has an inlet and an outlet for the refrigerant.

The refrigerant enters the evaporator, the pressure is reduced, and the high-pressure gas turns into a low-pressure gas. This process needs to absorb heat, so the surface temperature of the evaporator is very low, and then the fan can blow out the cold air. The condenser will be removed from the compressor. The high-pressure, high-temperature refrigerant that comes out is cooled to a high-pressure, low-temperature, and then vaporized through a capillary tube, and evaporated in the evaporator