Automobile Engineering | Sketch the layout of an air conditioning system for a car and explain its working.

Working:

• Air Conditioning System in a Car works on Vapor compression cycle. 
• It consists of compressor, condenser, evaporator, receiver, expansion valve, thermostat, blower fan and heating core.  
• In compressor during suction stroke low pressure vapor in dry state is sucked from evaporator. It is then compressed to high pressure and temperature. 
• These vapors are then passed into condenser where heat is removed by cooling medium which converts vapor into liquid. 
• The liquid is stored into receiver. The liquid from receiver is then passed to evaporator through expansion valve. Expansion valve reduces pressure. 
• The low pressure liquid refrigerant enters evaporator, where it absorbs the heat from the warm air which is passed over the evaporator. 
• The worm air gets cooled thereby cooling the passenger compartment. Due to heat absorption, liquid refrigerant gets converted into vapor and these vapors are passing to compressor.