Toroids with Wing-Like Internal Structure.

Discuss the technical details of an "open source" community-driven design of a polywell reactor.

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KitemanSA
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Postby KitemanSA » Mon Mar 30, 2009 4:12 pm


KeithChard
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Postby KeithChard » Mon Mar 30, 2009 6:25 pm

Keith

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Postby KitemanSA » Mon Mar 30, 2009 7:24 pm


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Postby KeithChard » Wed Apr 01, 2009 7:39 pm

There is a problem with lack of readily available high temperature data on some of the materials I have suggested for the first wall.

It also appears that above the Curie temperature the thermal expansion coefficient ceases to be very low, and below this temperature the materials are ferromagnetic. We need paramagnetism and low thermal expansion simultaneously.

I think we need to search for a different class of materials. Perhaps there is a suitable bronze, as I suggested in an earlier post, but I am concerned that the outer surface temperature (under the 11B coating) may be too high for any material with a substantial copper content. However, the high thermal conductivity of the bronzes is a very favourable property.

On a different aspect of the Magrid design, has anyone considered the effects of the much larger separation between the magnets, enforced by the cooling system, on the power output and power losses of this reactor?

Edit: I think it will be best to start a thread on the Theory forum for this
last item.
Last edited by KeithChard on Thu Apr 02, 2009 8:29 am, edited 1 time in total.
Keith

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Postby KitemanSA » Wed Apr 01, 2009 8:45 pm


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Postby MSimon » Fri Apr 03, 2009 2:16 am


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Postby KeithChard » Mon Apr 06, 2009 2:26 pm

Keith

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Postby KeithChard » Wed Apr 08, 2009 1:36 pm

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Postby MSimon » Wed Apr 08, 2009 1:44 pm


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Postby KitemanSA » Wed Apr 08, 2009 2:01 pm

Which brings us back to the original topic of this thread, the SC/LHe structure. While Billy's picture is, to quote MSimon, "WOW"; it seems way too heavy to me. Billy still seems to be carrying all the magnetic expansion loads out thru the casing, and that really isn't necessary. The TWP needs only to shield the core, not support it. It needn't even touch it beyond the inner wall, the LHe wall.

A lot of this work seems a beautiful waste of time. Oh well.

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Postby MSimon » Wed Apr 08, 2009 2:04 pm


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Postby KitemanSA » Wed Apr 08, 2009 2:11 pm


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Postby Betruger » Wed Apr 08, 2009 2:14 pm


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Postby KitemanSA » Wed Apr 08, 2009 3:03 pm


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Postby Billy Catringer » Fri Apr 24, 2009 9:05 am



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