Does anyone know whether nuclear fusion energy gain numbers contain energy requirements for keeping the magnets cooled and the vacuum at high quality?
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Cool, thanks so much. So the difference is roughly an order of magnitude or so? Do you have a reference?
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I've been out of the field for a decade - I worked on MAST in UK - and this sort of thing was more praxis/tacit knowledge. The literature focused on physics parameters rather than prospective commercial engineering - with reason: these were experimental devices, not prototypes.
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Obviously, with commercial reactors "always 20 years away" - it's hard to know what thermal efficiency should look for to achieve full system efficiency. It depends on efficiencies in magnets, how much field strength you need, efficiencies of different auxiliary heating etc...
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made a bit of a mess of my threading - this below would probably go better herehttps://twitter.com/SebTallents/status/1420801171372052490 …
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