this post was submitted on 21 May 2025
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Samsung and US researchers say a new technology called thermoelectric cooling can make refrigerators 70% more energy efficient, & could enable them to power themselves from their ambient environment (www.eenewseurope.com)
submitted 2 months ago by Lugh@futurology.today to c/futurology@futurology.today
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[–] PhilipTheBucket@ponder.cat 15 points 2 months ago (2 children)

He already did. "Thermoelectic cooling: It's not great."

"There's just one little issue with this technology. It's not very good. Like, at all."

[–] Luffy879@lemmy.ml 7 points 2 months ago (1 children)

TL;DR one side gets hot, while the other gets not very cold

So in order for the very hot side to not heat up the cold side, negating the cooling effect, you have to have a whole water cooled noctua 480mm fan assembly cooling that 2 cm*2 surface, just so that thingy can get to like 10C

[–] PhilipTheBucket@ponder.cat 4 points 2 months ago

Also, it's by definition impossible for it to have better than 100% cooling efficiency, which is already the norm for refrigeration-cycle-driven machines.

There are niche applications where it can be the right answer, but no amount of improvement to this specific technology will ever make this as good as existing refrigerators.

[–] Raiderkev@lemmy.world 2 points 2 months ago

I was looking at the thumbnail and wondering if it was these. Yeah, imma go with Alec on this one.