this post was submitted on 29 Nov 2023
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106
Cooling Paint: How to Make Surfaces Stay Cool in the Sun (www.youtube.com)
submitted 1 year ago* (last edited 1 year ago) by CharlesMangione to c/technology
16 comments fedilink hide all child comments
 

A detailed explanation and demonstration of a paint that cools down to sub-ambient (3C in ideal conditions) temperatures with no energy input.

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[–] [email protected] 0 points 1 year ago

You're right: it's probably not practical to paint a building with the stuff. Nighthawkinlight briefly comments on this. I believe the idea is to use it on passive radiator panels to sink heat from a pumped coolant fluid. That way you can strategically place panels (e.g. on the roof) and control them, just like solar heating panels.