Electronics > Projects, Designs, and Technical Stuff
Peltier devices for "personal cooling" ? (or heating)
cdev:
Has anybody here ever done this? Every summer it seems I think about giving it a try, but havent yet. Basically the idea is to build some means of sucking up the heat from my bodyt and radiating it into space by using theirmoelectric devices or "peltier devices" They take an awful lot of current but basically one side gets hot and the other side gets cold. If you heat them up on one side they can also generate electricity.
You could use liquid cooling. Like a computer.
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EDIT: This is a great video on the theory of Peltier devices..
NiHaoMike:
Has been tried before, doesn't work very well.
jogri:
I see two major problems with such a design:
-the shitty heat transfer between your body/skin and the heatsink (your body isn't really designed to radiate a lot of heat in a cold environment as that wouldn't be ideal for survival in colder climates/winter)
-the inability to cool your heatsink to temperatures lower than 5-0°C (you will get frostbite when the water starts to crystallize)
But there is one really bad "solution" that would overcome those problems: You could use your internal (water+some other stuff) cooling loop...
thm_w:
Better off using:
- multiple ice packs that you change out
- evaporative cooling (https://www.ergodyne.com/chill-its-6685-dry-evaporative-cooling-vest.html)
This assumes you are outside and need something portable. If you are inside: air conditioner.
coppercone2:
the japanese thing you put in your shirt for small people is available on ebay now for 200$ from japan ($120 in japan)
https://robbreport.com/gear/personal-technology/sonys-reon-pocket-air-conditioner-now-available-2934592/
no XL though ;D'
in america, we just take our shirts off. thats for business people who are not allowed to take a suit off lol
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