this post was submitted on 19 May 2025
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45
Revolutionary cooling technology emerges from Slovenia (farmingdale-observer.com)
submitted 3 days ago by floofloof@lemmy.ca to c/technology@lemmy.world
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[–] phoenixz@lemmy.ca 24 points 3 days ago* (last edited 3 days ago)

Seeing title:

revolutionary

Rule: when someone claims a revolutionary product, it's probably bullshit as I see revolutionary product announcements about twice a day and real revolutions about once every decade at best.

Reading article:

Yeap, this is something somewhere in some lab that one day maybe a decade from now find its way into a consumer product, but probably not air conditioners anyway...

For the moment it sort of sounds sort of like a Peltier cooler, which also is useless for airconditioning

[–] xodoh74984@lemmy.world 4 points 3 days ago

I searched for "nitinol cooling system" and found articles dating back to 2016 about the same technology at a German university –

https://newatlas.com/shape-memory-refrigerant-free/41652

https://newatlas.com/shape-memory-alloy-nitinol-heating-cooling/58837/

Cool tech, but this recent article lacks substance compared to the older ones. Also interesting that the German team claimed 2x better efficiency than a typical heat pump.

[–] sturger@sh.itjust.works 4 points 3 days ago

You know what's even cheaper to run than this "new technology"? Breathy promotion pieces that give no evidence whatsoever to support it's claims. Way to go, PR folks.

[–] xc2215x@lemmy.world 3 points 3 days ago

Good for Slovenia.

[–] Vitaly@feddit.uk 2 points 3 days ago (1 children)

Is this cheaper to run more expensive to buy type of deal? If so I want one of those

[–] calabast@lemm.ee 10 points 3 days ago (1 children)

It says the current tech is only 15% efficient vs current AC which is 20-30%, so no it would be more expensive to run. Since it doesn't exist as a product yet, we can't really compare initial installation costs, and probably not maintenance costs either. Hopefully they can improve on the efficiency, but there may be a theoretical maximum efficiency and I have no idea if that's higher than 30% or not

[–] pelya@lemmy.world 1 points 3 days ago

Yeah, you could probably achieve 15% cooling efficiency with regular old nitrogen or methane instead of fluorocarbons.

[–] PixelatedSaturn@lemmy.world 2 points 3 days ago

Extremely interesting. Some technical challenges remain, but so many applications if solved.