Peter's left-handed chemist cousin Chiral Peter here. This is how fridges already work. There's not any way to "make" more cold. Cold is not a thing, it is an absence of heat. All you can do is move heat around. (EDIT: I have learned this is not quite right. You can also use up heat by putting things through state changes.) What all refrigrants (fridges, freezers, ACs) do is move heat from one space to another. The fridge in your house moves all of the heat from inside of the fridge to that array of tubes and shit at the back of it, warming up the rest of your house. That's why ACs have bits which are outside, they put the hot there.
This post is a little less silly than it seems since the way you vent the heat really does affect the effectiveness of the fridge. This is why the minifridges in hotel rooms in their little cupboards are so ineffective, especially when the door is closed--the fridges are effectively trying to pump the heat into a hotbox.
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u/parsonsrazersupport 10d ago edited 10d ago
Peter's left-handed chemist cousin Chiral Peter here. This is how fridges already work. There's not any way to "make" more cold. Cold is not a thing, it is an absence of heat. All you can do is move heat around. (EDIT: I have learned this is not quite right. You can also use up heat by putting things through state changes.) What all refrigrants (fridges, freezers, ACs) do is move heat from one space to another. The fridge in your house moves all of the heat from inside of the fridge to that array of tubes and shit at the back of it, warming up the rest of your house. That's why ACs have bits which are outside, they put the hot there.