How do air conditioners work?


Your air conditioning (AC) system keeps your home or car cool in hot weather, but have you ever wondered how it works?

An air conditioner (AC) in a room or a car uses chemicals that convert from gas to liquid and back again quickly. These chemicals transfer the heat from the air inside your property to the outside air.

The AC unit has three key parts which are compressor, the condenser, and the evaporator. Your unit’s compressor and condenser are typically located in the outside part of the air conditioning system. Inside the house is where you will find the evaporator.

The cooling fluid reaches the compressor as a low-pressure gas. The compressor squeezes this gas/fluid, and the molecules in the liquid are packed closer together. The closer the compressor forces these molecules together, the higher the temperature and energy rise.

This is essentially how air conditioners work.

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The Petri Dish is malaysia’s first dedicated science newspaper. Through The Petri Dish we aim to engage the public on the latest developments on biotechnology.