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The Nuclear Power Thread
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[QUOTE="Astronuc, post: 6489908, member: 15685"] The 100 kWt (20 kWe) is a demonstration module. I would expect micro-reactors to be larger, and perhaps be used to district heating, as well as electricity. I don't know how such a plant would be scaled up with Stirling engines. An efficiency of 20% is rather poor. It may be more of economics as it relates to design to meet legal/regulatory (safety) requirements. [URL]https://www.nrc.gov/docs/ML2004/ML20044E249.pdf[/URL] (February 5, 2020) My bold for emphasis. [URL]https://gain.inl.gov/MicroreactorProgramTechnicalReports/Document-INL-EXT-19-55257.pdf[/URL] Key Regulatory Issues in Nuclear Microreactor Transport and Siting, INL/EXT-19-55257, September 2019 SECY-20-0093, POLICY AND LICENSING CONSIDERATIONS RELATED TO MICRO-REACTORS, October 6, 2020 [URL]https://www.nrc.gov/docs/ML2012/ML20129J985.pdf[/URL] SECY-20-0093, Enclosure 1, Technical, Licensing, and Potential Policy Issues for Micro-Reactors [URL]https://www.nrc.gov/docs/ML2025/ML20254A365.pdf[/URL] The NRC has to give them serious consideration, IF there are interested parties willing to put up some support. Micro-reactors have been under consideration for several years, and I understand that the intent is to provide a power source to remote locations. Nuclear Energy Institute, "Micro-Reactor Regulatory Issues," November 13, 2019 [URL]https://www.nrc.gov/docs/ML1931/ML19319C497.pdf[/URL]IF at least one of the fusion concepts is viable, especially if it based on the aneutronic p-B11 reaction, then a lot of current nuclear technology could be short-lived. Then again, an industry devoted to p-B11, will be highly dependent on available B11. [URL]https://www.usgs.gov/centers/nmic/boron-statistics-and-information[/URL] According to Statista, "As of 2020, Turkey had the largest reserves of boron globally. Turkey has an estimated 1.1 billion metric tons of boron in reserves. The United States and Russia shared the second highest boron reserves with just 40 million metric tons." [URL]https://www.statista.com/statistics/264982/world-boron-reserves-by-major-countries/[/URL] Contrast the boron resources with uranium resources. [URL]https://www.iaea.org/newscenter/pressreleases/worlds-uranium-resources-enough-for-the-foreseeable-future-say-nea-and-iaea-in-new-report[/URL] [URL]https://www.world-nuclear.org/information-library/nuclear-fuel-cycle/uranium-resources/supply-of-uranium.aspx[/URL] I know of a program to extract U from seawater, among other programs. [/QUOTE]
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