Customized Automotive Evaporator Coil for A Turkish Client

Customized Automotive Evaporator Coil for a Turkish Client

The car evaporator coil is a key component in the automotive air - conditioning system, mainly located in the evaporator box, usually behind the air - conditioning filter in the dashboard on the passenger side.

Consists of circular tubes and aluminum fins. The circular tubes are used to allow the refrigerant to flow through, and the aluminum fins increase the heat - transfer area. This type has the advantages of simple structure and low cost, but its heat - transfer efficiency is relatively low.

Working Principle

The high - pressure liquid refrigerant enters the evaporator coil through the expansion valve. Due to the atomization effect of the expansion valve, the liquid refrigerant becomes mist - like, and then changes from a liquid state to a gaseous state under low - pressure conditions. In this process, the refrigerant absorbs a large amount of heat, which makes the evaporator coil cool. The air blown by the blower passes through the evaporator coil and exchanges heat with the refrigerant. As a result, the air is cooled and then blown out from the air - conditioning outlet, achieving the purpose of cooling the car interior.

Role in the Automotive Air - Conditioning System

Cooling and dehumidifying: It cools the air in the car, reducing the temperature to create a comfortable driving environment. At the same time, when the air passes through the cold evaporator coil, the water vapor in the air condenses into water droplets, which are discharged outside the car through the drainage system, achieving the effect of dehumidifying the air.

Controlling the temperature: The temperature of the evaporator coil surface is controlled by a thermostat. By periodically cutting off the circuit of the compressor electromagnetic clutch, the temperature of the refrigerant in the evaporator coil is maintained within a certain range, thereby controlling the temperature inside the car.