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this post was submitted on 04 Aug 2025
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A Boring Dystopia
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Industrial cooling is all about evaporating some liquid into gas. For evaporative coolers, that liquid is water and works best if the air is dry and water is plentiful (the absurd part). If you don't have water or the air is so humid that evaporation is difficult, the liquid is expensive refrigerant which must recycle back into liquid in a closed loop with a gas compressor that pumps the waste heat into the air through forced convection heat exchangers (big fans blowing air past hot refrigerant-filled pipes), all of which consumes a lot of energy.
Ideally, we'd live in a post scarcity society in which huge arrays of solar panels would provide electricity to run closed-loop refrigerant plants that would consume zero water to cool our data centers.
Vapor chamber with the river.