Air conditioning is the process of removal of heat from indoor air by cooling. An air conditioner (AC) is a system or mechanism designed to dehumidify and extract heat from an area. The cooling is done with the help of a simple refrigeration cycle, but sometimes it is done using evaporation especially for cooling in buildings and motor vehicles. Most cars today use a new refrigerant called R-134A, which does not contain chlorine. Air conditioners are enabled with Automatic Temperature Control set up system.
The different components used in the automobile air conditioning are:
Compressor:
Compressor compresses the air and then transfers the refrigerant gas. It has two sides, which serve functions of a suction and a pump. It is also referred to as the heart of the air conditioner.
Condenser:
Designed like a car radiator, a condenser performs the function similar to the radiator. Hot air is cooled in the condenser.
Evaporator:
Evaporator is the site where heat is absorbed from the vehicle. The evaporator is maintained at optimum temperature of 0 degree centigrade.
Pressure Regulating Devices:
These are different types of devices, mostly tubes that help to regulate the flow of refrigerant air in and out of the compressor.
The functioning of car air conditioner is based on the principle of conduction and convection. The evaporator of the air conditioner removes the heat from the air when air passes through it, as a result of which the air becomes cool. This air is then forced out through the vents by the blower meter.
One has to go for frequent servicing of the car and get the air conditioner checked so that it continues to provide comfort for a longer period of time.