#haleu — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #haleu, aggregated by home.social.
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ChatGPT3.5 KI über neue #Uranbrennstoffe called #HALEU – es wird schneller kritisch! Hallo #Kettenreaktion! – umweltFAIRaendern
https://umweltfairaendern.de/2024/07/09/chatgpt3-5-ki-ueber-neue-uranbrennstoffe-called-haleu-es-wird-schneller-kritisch-hallo-kettenreaktion/ -
ChatGPT3.5 KI über neue #Uranbrennstoffe called #HALEU – es wird schneller kritisch! Hallo #Kettenreaktion! – umweltFAIRaendern
https://umweltfairaendern.de/2024/07/09/chatgpt3-5-ki-ueber-neue-uranbrennstoffe-called-haleu-es-wird-schneller-kritisch-hallo-kettenreaktion/ -
Ядерные реакторы для космоса. Возвращение
Схема ядерного ракетного двигателя NERVA , 1972 г, источник Ядерные ракетные двигатели (ЯРД) ведут давнюю историю с 60-х гг прошлого века, после чего были забыты на десятилетия. Последние испытания ЯРД в США состоялись более 50-ти лет назад в рамках проектов NERVA и Rover . Однако технологии не стоят на месте — и благодаря последним достижениям в области аэрокосмических материалов и инженерных разработок теперь ЯРД наконец-то созрели для практического использования в космосе.
https://habr.com/ru/companies/ruvds/articles/853404/
#ядерная_энергия #ядерный_реактор #ядерная_бомба #самодельная_бомба #DRACO #DARPA #ядерный_ракетный_двигатель #ЯРД #Lockheed_Martin #BWX_Technologies #Project_Rover #низкообогащённый_уран #HALEU #Vulcan_Centaur #ruvds_статьи
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Not to mention all the #WaterConsumption! There are plans to restart aging nuclear reactor as well as untested SMR reactors! Will #AI’s huge energy demands spur a #nuclear renaissance?
By Davide Castelvecchi
25 October 2024Do small modular reactors carry extra risks?
"In some cases, small modular reactors 'could actually push nuclear power in a more dangerous direction', says #EdwinLyman. 'Advanced isn’t always better.'
"In particular, Lyman points out that the pebble-bed designs drawn up by #XEnergy and #Kairos would rely on high-assay low-enriched #uranium (#HALEU), which comprises 10–20% uranium-235 — compared with the 5% enrichment level required by most existing reactors (and by #NuScale’s reactor). HALEU is still classified as low-enrichment fuel (as opposed to the highly enriched uranium used to make nuclear bombs), but that distinction is misleading, Lyman says. In June, he and his collaborators — including physicist Richard Garwin, who led the design of the first hydrogen bomb — warned in a Science article that a bomb could be built with a few hundred kilograms of HALEU, with no need for further enrichment.
"Smaller reactors are also likely to produce more nuclear waste and to use fuel less efficiently, according to work reported in 2022 by Macfarlane and her collaborators. In a full-size reactor, most of the neutrons produced by the splitting of uranium travel through a large volume of fuel, meaning that they have a high probability of hitting another nucleus, rather than colliding with the walls of the reactor vessel or escaping into the surrounding building. 'When you shrink the reactor, there’s less material in there, so you will have more neutron leakage,' Macfarlane says. These rogue neutrons can be absorbed by other atomic nuclei — which would then themselves become radioactive."
Original article:
https://www.nature.com/articles/d41586-024-03490-3Archived version:
https://archive.ph/mODpF#selection-952.0-991.164#AI #ArtificialIntelligence #Cryptocurrency #DataCenters #RethinkNotRestart #NoNukesForAI #NoNukes #NuclearHype #NeutronEmbrittlement #NuclearWaste #NotCarbonFree