Luckily in my life, they just work but there’s gotta be way more to it than gas/electricity make air hot, refrigerant/coolant make air cold. Also what is refrigerant/coolant?
Also I’m sure it can vary in application so I’m mainly asking about buildings/residences.
In: Technology
Refrigerant is the substance used in the cooling mechanism of a refrigerator or air conditioner or similar device. The exact substance used is chosen in respect to the design parameters of the machine – where it is used, the amount of cooling required, etc.
This substance is pumped under pressure through a pipe. When the pipe gets to where you want the cooling the pipe size is changed to cause the refrigerant to be under less pressure. This pressure drop makes it colder which cools what you want to cool. The cold refrigerant is pumped out of the cooling area and recompressed which warms it up. The back of a domestic fridge or freezer is warm as that is where this heat is dumped into the atmosphere.
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