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How To Make Infrared Cooling Paint (Electricity Free Air Conditioning) (Patreon)

Published:
2022-07-08 20:16:23
Imported:
2026-06
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Early preview for Patrons!

Wow, 5 months since my last video. That's the longest I've ever gone without posting. I hope this one is worth the wait!

I've been sick for much of the last year but finally felt well enough to get this project filmed and finished. Hopefully this next year will be illness free as the problem seems to have been identified and correctable with minor surgery, and I'm feeling well enough to work in the meantime.

Let me know how you like this project in the comments! The video will be going live to the public tomorrow morning.

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Previews only

How To Make Infrared Cooling Paint (Electricity Free Air Conditioning)

In this video I make ultrawhite radiative paints for passive, electricity free cooling. Check out my sponsor Brilliant and use this link for 20% off a premium subscription: https://www.brilliant.org/nighthawk Here is a partial list of the resources and relevant websites I found while researching this project: Article about CaCO3 and BaSO4 Radiative Cooling in Commercial-like Paints: https://www.sciencedirect.com/science/article/pii/S2666386420302368?via%3Dihub This is a patent related to the above article: https://patents.google.com/patent/WO2020072818A1/en Formation and Application of High Reflectivity Controllable Barium Sulfate Microspheres: https://www.mdpi.com/2073-4352/8/9/333/htm Designing Porous Polymers for Daytime Radiative Cooling: https://www.proceedings.iaamonline.org/article/vpoam-2021-0149 This is the only company I found that has installed sky cooling panels in limited test cases: https://www.skycoolsystems.com/ This article describes testing of a radiative cooling film using glass microbeads as the infrared emitter: https://www.sciencedirect.com/science/article/pii/S2542435118304689 Website associated with the above article: http://radi-cool.com/ Big thanks to everyone that supports this channel on Patreon! A special thanks to my top patrons: Teague Lasser, Eugene Pakhomov, and those who have chosen to remain anonymous. Thank you! https://www.patreon.com/NightHawkProjects

Comments

Charles Bosse

Watched this video and can't stop thinking about it, along with your sonic refrigerator video. I ended up down the rabbit hole of thermal conductivity and reminded myself that diamond has a very high thermal conductance, and of course also a very high light reflectivity. What would happen if your "paint" used diamond dust (like the abrasive for machining) instead of water in the polimer mixture? I know that seems a little weird, but micron to hundred micron diamond dust isn't that expensive and even a "disappointing" result would likely still be interesting.

Full Name

At the end there was mention of a film. Would glass work for the targeted wavelengths?