Wendelstein 7-X

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

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Wendelstein 7-X

Postby carlos_l » Fri Mar 14, 2008 9:33 am


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Postby rj40 » Fri Mar 14, 2008 11:39 pm


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Postby drmike » Sat Mar 15, 2008 1:06 am


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Riggatron

Postby choff » Sat Mar 15, 2008 8:33 pm

CHoff

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Postby drmike » Sun Mar 16, 2008 2:11 pm

Research is always good. The more people we have working on different problems, the easier it is to combine the answers to find solutions to new problems.

The main problem is that we can't model plasmas at all. There is no way to predict what will happen. So experiments are really important to get empirical formulas.

It worked for water flowing in pipes, and now all cities are built using the numbers found in the late 1800's. There's no perfect model for water (or sewage) flowing in a pipe, but the empirical formulas work really well.

Plasma is just a little bit more complicated than sewage.
:D

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Postby Roger » Sun Mar 16, 2008 8:54 pm

Its toridial with a mobius twist.... no ?

http://images.google.com/images?q=Wende ... a=N&tab=wi

Image
I like the p-B11 resonance peak at 50 KV acceleration. In2 years we'll know.

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Postby rj40 » Sun Mar 16, 2008 11:53 pm

So is it intended to produce net energy in the future? If so, how far is it in our future? Now that I think of it, how many reputable programs are going on out there that seek to create net energy from fusion as a way to replace fossil fuels?
1. Polywell Fusion
2. …hmm…uh…
3. ….?

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Postby Skytreker » Mon Mar 17, 2008 8:55 pm


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Re: Wendelstein 7-X

Postby crowberry » Thu Jul 16, 2015 5:06 pm


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Re: Wendelstein 7-X

Postby D Tibbets » Fri Jul 17, 2015 1:18 pm

I think the Stellarator is advertised as having a higher plasma density potential than that of Tokamaks. As such research and eventual production machines could be smaller, which means cheaper and possibly more appropriate for the electrical grid. The same claims are made for the Polywell and other relatively compact designs.

Having said that, I think I read that this generation of this machine took ~ 20 years to build. How much of this was politics, budget problems, and waiting for computer simulations to guide them is unknown.

Dan Tbbets
To error is human... and I'm very human.

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Re: Wendelstein 7-X

Postby Giorgio » Fri Jul 17, 2015 5:15 pm

A society of dogmas is a dead society.

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Re: Wendelstein 7-X

Postby swamijake » Tue Jul 21, 2015 6:40 pm

The 7-X is a stellarator, a torus with 5 twists. It's like a tokamak, but the plasma path around the torus is the same length for all points in the plasma. This is supposed to help with drift and eliminates some modes of instability.

The problem is they are really tough to design and even harder to build. The 7-X is the biggest and best designed yet. I'm not sure it's even meant to do fusion, but really learn more about building and operating a big stellarator in a continuous fashion. If they are hitting the temperatures required and can do so for blocks of hours at a time then they can start building one to do fusion. I think the problem of making it radiation resistant along with the rest of the construction challenges was just an additional headache they didn't have the budget or time for.

Very cool machine.

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Re: Wendelstein 7-X

Postby crowberry » Mon Dec 07, 2015 3:08 pm


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Re: Wendelstein 7-X

Postby Giorgio » Mon Dec 07, 2015 6:29 pm

I have been waiting for this machine to be complete for the last 15 years and finally, after 10 years of delay, is ready.

In 6 month time we will have lot of new reports on arxiv or lot of blaming and "finger pointing" going on at IPP.... If it does not perform as expected it will be a big personal delusion.
A society of dogmas is a dead society.


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