this post was submitted on 24 Jul 2023
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Mildly Interesting

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[–] Gangreless@lemmy.world 1 points 2 years ago* (last edited 2 years ago) (4 children)

A modern home ACs can only cool about 20f below the outside temperature. 50c to 35c is 27 degrees so that's pretty damn good for a fancy unpowered swamp cooler

[–] manillaface@kbin.social 1 points 2 years ago

What’s your source for this? It routinely gets over 100 here and buildings aren’t 80 degrees inside.

[–] sci@feddit.nl 0 points 2 years ago (1 children)

pretty sure 50c to 35c is 15 degrees

[–] pfannkuchen_gesicht@lemmy.one 0 points 2 years ago* (last edited 2 years ago) (1 children)

I wonder how he got his number, it makes no sense.

EDIT: oh, he just randomly mixed °C and °F, because why not...

[–] yeather@lemmy.ca -2 points 2 years ago

Fucking Americans

[–] hairinmybellybutt@lemmy.world -1 points 2 years ago

ok, but the cost of building a quanat is still pretty high and is not trivial to achieve.

Can't have water flowing everywhere in a country for this to work.

[–] Norgur@kbin.social -1 points 2 years ago (1 children)

Yeah, the thing is the "unpowered" part. Look how much energy an AC chugs to achieve that cooling. This tower uses wind power to do it's thing.

[–] Duder167@lemmy.world 2 points 2 years ago

The AC is also small compared to a literal building with a sewer underneath and doesn't require a windy day. Trade offs