Search found 221 matches

by Billy Catringer
Fri Feb 06, 2009 6:16 pm
Forum: Design
Topic: Is There an Optimal Size for Magrid Casings?
Replies: 339
Views: 172907

I have been twisting this around in my head, not hard given the nature of my itty-bitty brain, and it looks to me as though the truncated dodecahedron is going to be the better of the two designs insofar as a stable structure goes. It is easier to make supporting triangles out of that design and I s...
by Billy Catringer
Fri Feb 06, 2009 4:47 pm
Forum: Design
Topic: EMC2-0806-04 Found.
Replies: 5
Views: 8565

There is a bad link at their site that is supposed to lead to this paper. Unable to download it at their site, I ran a search on Google for it by the EMC2 title and this link, a working link, turned up. Now, if they do not want it available to the public, they need to remove mention of it from their...
by Billy Catringer
Fri Feb 06, 2009 3:07 pm
Forum: Design
Topic: Is There an Optimal Size for Magrid Casings?
Replies: 339
Views: 172907

Prior to and during fusion there will also be more protons striking the magnet shells. Proton strikes will manifest as heat even though no single proton will be as hot as a 4He nucleus. I think the boron coating is a very good idea, but you are going to see some cracking and spalling from flexure. T...
by Billy Catringer
Thu Feb 05, 2009 10:29 pm
Forum: Design
Topic: Is There an Optimal Size for Magrid Casings?
Replies: 339
Views: 172907

Holy smokes! At those temperatures you may as well let the water flash to steam at the outlets and run it through a pair of turbines and a dump condensor. You might get enough power to maintain the vaccum jackets AND drive the feedwater pump. But that trips yet another alarm and I may well be miscon...
by Billy Catringer
Thu Feb 05, 2009 9:22 pm
Forum: Design
Topic: Is There an Optimal Size for Magrid Casings?
Replies: 339
Views: 172907

Water is the best inexpensive heat transfer fluid known to man in terms of joules/kg*degC. Yes, that's true. It also has some rather nasty habits. BTW I need good moderation properties. It is part of shielding the SCs from the neutron flux. I hear and understand, especially if you are dealing with ...
by Billy Catringer
Thu Feb 05, 2009 7:44 pm
Forum: Design
Topic: Video - Making MgB2 Superconductors
Replies: 7
Views: 8520

Additional note. Silver is itself a good absorber of neutrons and there are some alloys of it that hold up well in nuclear service.
by Billy Catringer
Thu Feb 05, 2009 7:42 pm
Forum: Design
Topic: Is There an Optimal Size for Magrid Casings?
Replies: 339
Views: 172907

Long experience with water in nuclear reactors. What happens to therminol under neutron bombardment? How good a moderator is it? I do not doubt your experience one bit. You had a hairy-assed job and you did it well or you and I would not be having this correspondence. So lemme see if I can explain ...
by Billy Catringer
Thu Feb 05, 2009 5:43 pm
Forum: Design
Topic: Video - Making MgB2 Superconductors
Replies: 7
Views: 8520

If they are using nickel and copper in the new composites, they have to do some annealing along the way during fabrication. I am surprised that they do not offer some of these with silver cores instead of copper.
by Billy Catringer
Thu Feb 05, 2009 3:17 pm
Forum: Design
Topic: EMC2-0806-04 Found.
Replies: 5
Views: 8565

EMC2-0806-04 Found.

by Billy Catringer
Thu Feb 05, 2009 1:57 pm
Forum: Design
Topic: Is There an Optimal Size for Magrid Casings?
Replies: 339
Views: 172907

Honest to goodness, guys, I think this is what you need for cooling the reactor internals.

http://www.therminol.com/pages/products/vp-1.asp

This is especially true for a p-B11 reactor. Water is always trouble.
by Billy Catringer
Thu Feb 05, 2009 12:41 pm
Forum: Design
Topic: [DUMB??] Design Question: Concentric polyhedral magnets
Replies: 17
Views: 22111

A simpler solution is to use boron as a sacrificial shield. You could coat the inner faces of the electromagnets with boron (using epitaxy), but it would probably be better to make a separate piece that closely fitted the inward face of the of the electromagnet tori. These shields should have a pred...
by Billy Catringer
Thu Feb 05, 2009 12:30 pm
Forum: Design
Topic: Video - Making MgB2 Superconductors
Replies: 7
Views: 8520

The video does not show the necessary annealing steps in the process, but they may be annealing on the fly. Both copper and nickel have the nasty habit of work hardening.
by Billy Catringer
Wed Feb 04, 2009 10:29 pm
Forum: Theory
Topic: Competing Design?
Replies: 4
Views: 3699

My apologies to everyone. If I had done a little more reading I would have realized this guy is a regular Captain Video.

I will do a better job of screening from here on.
by Billy Catringer
Wed Feb 04, 2009 9:44 pm
Forum: News
Topic: Google Polywell Fusion Counter
Replies: 207
Views: 99143

Those are real options, but they have a certain ugliness about them (either radioactive waste or greenhouse gases). Why not solar power (thermal cycle, built in the desert with the electricity piped to civilization over HVDC lines)? Or off-shore wind? (I haven't given up on hot-dry-rock geothermal,...
by Billy Catringer
Wed Feb 04, 2009 1:47 pm
Forum: Theory
Topic: Competing Design?
Replies: 4
Views: 3699

Competing Design?

I did not know where else to post this so if this is the wrong place, I hereby apologize.

http://www.crossfirefusor.com/

I am dubious of this guy, but he did at least show some of his math.