Even after searching it up I still don’t understand how it cools down air.
And what exactly does Freon do?
In: 9
Using Freon as gas airconditioning gas is being phased out as it isn’t environmentaly friendly if it leaks. Other gasses are used today, including CO2.
Although the exact details, such as temperatures and pressures are different with these different gasses, the working principle is exactly the same.
The gas in an air conditioning is enclosed in a loop and is recirculated by a pump (compressor). There is a deliberate restriction built in this loop, creating a high pressure zone (before restriction) and a low pressure zone (after the restriction).
Although not required, but it greatly improves performance, the gas and pressure is chosen so there is a phase change taking place. The gas becomes a liquid in the high pressure zone and becomes a gas again in the low pressure zone.
The compression and expansion created by this restriction creates a temperature difference between these 2 zones. The phase change increases this difference a lot as phase transitions require a lot of energy to take place (energy = heat).
By cooling the hot side (high pressure), the cool side (low pressure) will become even cooler. This is an air conditioner.
Similarly, by heating the cold side, the hot side becomes even hotter and then it is called a heat pump.
The cooling/heating is often done by ambient air, and the effect it induces is used to cool/heat a car/room/house/aquarium.
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