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Talk-Polywell.org • Small Tri Alpha news blurp - Page 10
Page 10 of 13

Re: Small Tri Alpha news blurp

Posted: Fri Jul 20, 2018 4:13 pm
by Maui
I was disappointed by target for late 2020s for a commercial demo reactor. Wasn’t it mid 2020s just recently?

Re: Small Tri Alpha news blurp

Posted: Fri Jul 20, 2018 5:37 pm
by Skipjack
I think that was for break even. And yes, it seems like their timeline moved to the right a few years.

Re: Small Tri Alpha news blurp

Posted: Fri Jul 20, 2018 5:56 pm
by mvanwink5
Norman is supposed to show that they can reach temperature, the next scaled up revision to determine engineering specs, then they build a demo.
A demo late 2020's is huge.

There is enough fossil to not fret.

Re: Small Tri Alpha news blurp

Posted: Fri Jul 20, 2018 7:07 pm
by Skipjack

Re: Small Tri Alpha news blurp

Posted: Fri Jul 20, 2018 7:36 pm
by mvanwink5
2019! SJ, I hope you are right. ITER will dry up immediately and funding will flow to the others (IMO). There may still be hope for Polywell. So many things will take place with such success announcement.

Re: Small Tri Alpha news blurp

Posted: Fri Jul 20, 2018 8:24 pm
by Skipjack

Re: Small Tri Alpha news blurp

Posted: Fri Jul 20, 2018 9:09 pm
by mvanwink5
ITER has many contracts funded by tax dollars, yet the size of a plant will be so huge that no utility will build it. Once a reasonable sized fusion reactor is proven, what will be the need to continue funding it?

Investors don't throw money at projects with the time horizon these fusion reactors take to develop, so have no fear of a bubble.

Re: Small Tri Alpha news blurp

Posted: Sat Jul 21, 2018 10:00 am
by RERT
If someone succeeds with 'aneutronic' direct conversion power, then much of the work at ITER on how to deal with massive neutron fluxes, get thermal power out if the reactor, and handling tritium is surely largely moot. They would be solving really tough problems which don't need solutions any more.

Re: Small Tri Alpha news blurp

Posted: Sat Jul 21, 2018 10:54 am
by mvanwink5
There are massive magnets and power requirements to run them that would also be useless. A huge mothball effort.

A great monument to Gruberment idiocy and bloat.

Re: Small Tri Alpha news blurp

Posted: Sat Jul 21, 2018 6:40 pm
by Crawdaddy
I once asked the CEO of General Fusion if he was angry at all the waste of funding and effort associated with ITER. He laughed and said: "In terms of the 3 trillion dollar global energy market ITER is an insignificant rounding error." That should either fill us with hope for the amount of resources that will be deployed once aneutronic fusion is demonstrated, or make you depressed when you realize how little effort is being made to implement practical fusion right now.

Re: Small Tri Alpha news blurp

Posted: Sun Jul 22, 2018 5:43 am
by Skipjack
It is not quite that simple. ITER is not just about building the plant in France. The ITER project has employed dozens of research labs all around the world and that research has contributed a lot to our understanding of plasma physics. The simulation software alone has helped a lot of private fusion startups.
What will be interesting is the effect that reactors built by companies like Tokamak Energy and Commonwealth Fusion Systems will have IF they are successful. They are Tokamaks too and they are much more compact and may achieve break even before ITER does.
IMHO, the ITER reactor in France may never become the template for a reactor that produces electricity, but it is not useless. The money spent on ITER is not a whole lot if you look at the big picture. I would still keep the project going, though maybe make some changes to scope and focus.

Also worth noting that even fusion reactors using "aneutronic" fuels like D+He3 will be subject to a flux of neutrons. I cant quite remember the exact number, but at least 5% of the energy released in Helion's Fusion Engine will be in the form of neutrons. That is because they will be "burning" D+D as well in order to produce Helium3. So they will still benefit from material research done at ITER.

Re: Small Tri Alpha news blurp

Posted: Mon Jul 23, 2018 4:44 pm
by RERT
That's why I put 'aneutronic' in quotes. 11B+11B is said to lead to an average of one neutron over many cases. There is also p+11B->11C+n, 12C+gamma, and alpha + 11B -> 14N+n or 14C+p. It generally looks like thrifting the 11B in the fuel mix will make for a cleaner burn, as long as you can get the thing lit. I think you would also choose isotopically pure 11B and 1H if you could, though you will still get triton and deuteron production from alpha+11B -> 13C+d and 12C+t.

Re: Small Tri Alpha news blurp

Posted: Thu Jul 26, 2018 6:50 pm
by Munchausen

Re: Small Tri Alpha news blurp

Posted: Wed Aug 08, 2018 7:52 pm
by Skipjack

Re: Small Tri Alpha news blurp

Posted: Mon Sep 17, 2018 4:21 pm
by crowberry