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Post by David B. Benson on Oct 16, 2014 10:45:57 GMT 9.5
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peterc
Thermal Neutron
Posts: 30
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Post by peterc on Oct 17, 2014 17:40:47 GMT 9.5
Lockheed Martin I'd guess is a serious company. But that sounds a pretty grandiose claim.
It's a joke amongst fusion physicists that the 30 years they allow to get a "classical" fusion reactor commercial is a physical constant.
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Post by huon on Aug 18, 2021 14:48:50 GMT 9.5
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Post by cyrilr on Aug 29, 2021 2:12:49 GMT 9.5
Uh, well technically, the conditions in the heart of the sun are rather different, in pressure, temperature, and even the fusion fuel type...
This is closer to what is happening in a nuclear weapon.
Of course, that's not very nice PR.
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Post by huon on Aug 29, 2021 13:17:20 GMT 9.5
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Post by huon on Sept 1, 2021 10:16:38 GMT 9.5
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Post by huon on Sept 10, 2021 13:39:03 GMT 9.5
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Post by huon on Feb 23, 2022 15:45:07 GMT 9.5
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Post by huon on Mar 11, 2022 17:45:51 GMT 9.5
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Post by huon on May 3, 2022 14:19:24 GMT 9.5
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Post by huon on May 18, 2022 13:37:06 GMT 9.5
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Post by huon on Jun 1, 2022 12:08:07 GMT 9.5
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Post by huon on Jun 27, 2022 16:12:10 GMT 9.5
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Post by huon on Jul 23, 2022 15:16:54 GMT 9.5
TAE Technologies exceeds fusion reactor performance goals by 250% as company closes $250M round; $1.2B to date 22 Jul 2022 Green Car Congress www.greencarcongress.com/2022/07/20220722-tae.htmlThe company expects its next research reactor to "demonstrate the viability of achieving net energy generation from TAE fusion by mid decade." |
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Post by huon on Jul 28, 2022 14:24:02 GMT 9.5
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Post by huon on Oct 1, 2022 13:05:51 GMT 9.5
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Post by huon on Oct 24, 2022 12:26:55 GMT 9.5
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Post by huon on Nov 3, 2022 14:08:57 GMT 9.5
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Post by huon on Nov 14, 2022 8:21:43 GMT 9.5
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Post by huon on Jan 27, 2023 13:58:29 GMT 9.5
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Post by huon on Feb 7, 2023 15:26:05 GMT 9.5
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Post by huon on Feb 12, 2023 13:36:44 GMT 9.5
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Post by huon on Jun 25, 2023 14:21:09 GMT 9.5
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Post by huon on Jul 29, 2023 14:25:17 GMT 9.5
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Post by huon on Sept 16, 2023 8:46:38 GMT 9.5
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Post by huon on Oct 1, 2023 12:55:56 GMT 9.5
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Post by cyrilr on Oct 2, 2023 23:00:48 GMT 9.5
10 years ago they said they would have a 50 MW prototype in 2019. I critiqued them on many points. Now in 2023 they have 0 MW. Now they get 500 million in funding. Some of my criticisms: - no discussion of radiation damage to all the solid state electronics, which are wrapped right around the active core of a fusion reactor - no discussion of plasma stabilities for 1 Hz pulsed operation over many months, years (not demonstrated) - 1 Hz likely not enough - this is like a diesel engine, probably needs to be at least 10 Hz for reasonable power densities. - no discussion on wall damage - not demonstrated since they have not generated meaningful kWhs. - no discussion on electrical conversion efficiency - sure you could generate "some" electricity inductively, but most of it? Really? The claim seems to be 95%. That's implying the plasma temperature is dropped from say 100 million K to 5 million K, before losses? - the usual talk about how it fits in a shipping container. Come on! The radiation shields alone won't fit in a shipping container. Probably needs around 3 meters of concrete bioshielding. Maybe if they bury or mound the container in 5 meters of dirt it’d be ok. - aneutronic fusion - aneutronic my butt. He3 fusion is very roughly about as aneutronic as a fission reactor in terms of neutron energy yield per kWh. And the netrons are very energetic. And that's just the start of my list... |
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Post by cyrilr on Oct 3, 2023 18:39:29 GMT 9.5
www.scientificamerican.com/article/worlds-largest-fusion-project-is-in-big-trouble-new-documents-reveal/A bunch of theoretical physicists trying to build a real reactor. Zero manufacturing tolerances on massive components. Oblivious to the well known problem of stress corrosion in welded stainless steel. Moving the goalpost as you go along burning taxpayers money. Constantly reinventing the wheel rather than buying off the shelf components. The politicial differences and legal framework problems from many different countries working together. Zero tolerance for risk. An impractical overly complex reactor architecture. And even if it works it won’t generate any electricity - an even bigger and more complicated successor reactor will be required for that. What could possibly go wrong with that?
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Post by huon on Feb 24, 2024 15:31:18 GMT 9.5
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Post by huon on Mar 8, 2024 15:02:13 GMT 9.5
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