Spherical Tokamaks

Point out news stories, on the net or in mainstream media, related to polywell fusion.

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Skipjack
Posts: 6167
Joined: Sun Sep 28, 2008 2:29 pm

Re: Spherical Tokamaks

Post by Skipjack »

Simulations are only as good as the real life data you base them on. We do now have a pretty good amount of practical experience with STs. Not as much as with regular Toks, but not bad.

Giorgio
Posts: 2830
Joined: Wed Oct 07, 2009 6:15 pm
Location: China, Italy

Re: Spherical Tokamaks

Post by Giorgio »

Yes, most of the models I saw have the tendency to have too many assumptions (mostly to reduce the computing power needed to run the simulation), but this in the end prevents to have a clear understanding of the equilibrium point of the interactions among the different forces, especially for what it relates to MHD instabilities.

The good of ST is that they tend to be less prone to such instabilities, but for Toks it has been quite a problem that they are starting to solve only lately (and the solutions envisaged will indeed benefit also ST type of reactors).
A society of dogmas is a dead society.

Skipjack
Posts: 6167
Joined: Sun Sep 28, 2008 2:29 pm

Re: Spherical Tokamaks

Post by Skipjack »

More information about the UKEA plan for their Spherical Tokamak STEP program, which for a government program is rather aggressive.
They seem to think that they have solved the problems with instabilities and some of the damage to the walls and they are going to test this in MAST Upgrade. That will be interesting to see. If it works out as they think, then Tokamak Energy has even more validation for their design.
https://www.youtube.com/watch?v=eYbNSgU ... e=emb_logo

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