Re:Giant 'sand battery' holds a week's heat for a whole town
by asdfadsfgfdda on Wednesday March 13, 2024 @08:26PM
(#39699233)
I think the original plan was to convert the heat back into electricity with a turbine. So the higher temperature of sand would greatly improve thermodynamic efficiency.
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Re:Giant 'sand battery' holds a week's heat for a whole town
by Qwertious on Wednesday March 13, 2024 @08:49PM
(#39699395)
>I think the original plan was to convert the heat back into electricity with a turbine.
Is that just speculation or did you read it somewhere? IIRC the original motivation of PNE was a bunch of engineers at uni speculating on how to build the perfect building for engineers, and making it self-sufficient would require handling its own heating, which they originally thought would be best done with a big hot-water tank to store the heat. No turbine was suggested, IIRC.