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Passive refrigerator--in Nature and in MIT News

 
pollinator
Posts: 1665
Location: Massachusetts, 6b, suburban, nearish coast, 50x50, full sun, 40" year-round even distribution
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Mind blown.  Cooling by as much as 40C below ambient temperature in dry climates.  Allows emission in infrared rays.

Thoughts?
IMG_20190305_225233839.jpg
[Thumbnail for IMG_20190305_225233839.jpg]
 
Posts: 600
Location: Michigan
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A heat transducer....?  I have no idea what to call it, but its cool that it can exploit lowering resistance to heat loss by selective radiation. A reverse selective absorber like solar thermal absorbers.

Always cool when a materials arrangement can do work without moving parts. High technology if it is practical and works.
 
pollinator
Posts: 500
Location: Greybull WY north central WY zone 4 bordering on 3
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link to article
 
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