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[-] jaschen306@sh.itjust.works 18 points 5 months ago

Didn't China recently use super conducting CO2 instead of water?

[-] BussyCat@lemmy.world 22 points 5 months ago

Supercritical CO2 has been looked at a lot for the Brayton cycle which can get 50% efficiency compared to steam that generally caps out around 34%

The US and china both published studies talking about a brayton turbine but to my knowledge no commercial plants running off of it have been built yet

[-] Chais@sh.itjust.works 15 points 5 months ago

Supercritical, not superconducting.

[-] Alberat@lemmy.world 7 points 5 months ago

idk but you can also use molten salt

[-] megopie@lemmy.blahaj.zone 18 points 5 months ago

You can use molten salt to move and store heat but you don’t put it through a turbine. Molten salt systems run it through a heat exchanger that heats steam or CO2.

[-] Alberat@lemmy.world 1 points 5 months ago

oh thanks i didnt know or forgot

[-] PalmTreeIsBestTree@lemmy.world 3 points 5 months ago

https://youtu.be/OC9RI8_QYmw

This is what I think of when I hear molten salt.

[-] altphoto@lemmy.today 1 points 5 months ago

That sounds great.

this post was submitted on 31 Mar 2026
994 points (98.3% liked)

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