this post was submitted on 31 Mar 2026
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Science Memes

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[–] jaschen306@sh.itjust.works 17 points 1 day ago (4 children)

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

[–] BussyCat@lemmy.world 21 points 1 day 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 14 points 1 day ago

Supercritical, not superconducting.

[–] Alberat@lemmy.world 7 points 1 day ago (2 children)

idk but you can also use molten salt

[–] megopie@lemmy.blahaj.zone 16 points 1 day ago (1 children)

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 17 hours ago

oh thanks i didnt know or forgot

https://youtu.be/OC9RI8_QYmw

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

[–] altphoto@lemmy.today 1 points 1 day ago

That sounds great.