Solar-powered fridge invented by British student helps poverty-stricken Africansdailymail.co.uk 3 pointstoffer17 years ago2 commentsSaveHideCopy link On HNComments−Retric17yThis is a well known technology. The classic example uses 2 clay pot's, sand, and water.http://www.seed.slb.com/en/scictr/lab/pot_refrigerator/index...PS: Clay pot fr get's google to popup "Clay pot Frige" with 88k responses.−stryporz17ySpoiler: It's not solar powered, theres no carnot heat engine or solar cells involved. It's evaporative.
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This is a well known technology. The classic example uses 2 clay pot's, sand, and water.
http://www.seed.slb.com/en/scictr/lab/pot_refrigerator/index...
PS: Clay pot fr get's google to popup "Clay pot Frige" with 88k responses.
Spoiler: It's not solar powered, theres no carnot heat engine or solar cells involved. It's evaporative.