Contrary to popular perception, air conditioning is not about adding cool air at all! Truth is it’s about drawing heat away from inside your vehicle. The end result is a space with significantly less heat, which makes it feel cooler to occupants. Air conditioning takes advantage of the effects of evaporation, much like a swab of alcohol makes a person’s skin feel cooler as the liquid evaporates. The alcohol doesn’t lower the person’s skin temperature, but rather draws away heat from the air as it turns to a gas.
The parts of a typical air conditioning unit usually form a closed system consisting of a compressor, a condenser, an expansion valve and a thermostat. Motorized fans help to circulate the conditioned air, while thin metal fins allow heat to dissipate quickly. The heaviest part of a typical air conditioning is often the compressor, since it must be strong enough to withstand a significant amount of pressure.
