Blog Car Parts

Thus far we have covered the following auto ac parts :

1. Air Conditioning Compressor

2. Air Conditioning Condenser

3. Air Conditioning Expansion Device

If you are just now jumping into the conversation, I strongly recommend reading Parts 1-4.  The topic of discussion today is the air conditioning evaporator.  The ac evaporator is the first part to interact directly with the car cabin. It acts as the cabin heat exchanger.  The evaporator aids the cabin air in transfering heat into the refrigerant.  Ultimately, the evaporator also provides another change of state in the refrigerant, this time from liquid to gas.

When the supercooled refrigerant passes through the evaporator, the blower motor forces the passenger cabin air across the refrigerant coils and transfers the heat into the refrigerant. This superheats the liquid to a boiling point and turns the refrigerant from a liquid back into a gas.

Air Conditioning Evaporator