This simplified MSR integrates the primary reactor components, including primary heat exchangers to secondary clean salt circuit, in a sealed and replaceable core vessel that has a projected life of seven years. [Back], j. It is conceived as a 64 MWt, 16.4 MWe pool-type system operating at a relatively low temperature. The US Nuclear Infrastructure Council (NIC) has called for some of the downblending of military HEU to be only to about 19.75% U-235, so as to provide a small stockpile of fuel which would otherwise be very difficult to obtain (since civil enrichment plants normally cannot go above 5%).
In September 2016 Burns & McDonnell Engineering joined the project as architectural and engineering partner, in parallel with the DOE five-year award. Iodine and caesium stay dissolved in the fuel salt. In 2017 the first-of-a-kind cost was estimated at $5000/kW and $160/MWh, dropping to $4000/kW in series.
In March 2017 GEH and Advanced Reactor Concepts (see below) signed an agreement to collaborate on licensing an SMR design based on the ARC-100, but drawing on the extensive intellectual property and licensing experience of the GEH PRISM program. In November 2017 Terrestrial Energy completed phase 1 of the Canadian Nuclear Safety Commission's (CNSC's) pre-licensing vendor design review of the IMSR-400, and in October 2018 it entered phase 2 of the review. The 2400 MWt design has a homogeneous core of Li-Na-Be or Li-Be fluorides without graphite moderator. This will use low-enriched uranium plus thorium as a fuel, largely dispensing with the plutonium input of the version for domestic use. and S2W.
This would establish a reactor design capability in Ukraine, with a view to it becoming a regional hub for selling such reactors in Europe, Asia and Africa. A 100 MWt demonstration pebble-bed plant with open fuel cycle is planned by about 2025.
), In March 2013 the DOE called for applications for second-round funding, and proposals were made by Westinghouse, Holtec, NuScale, General Atomics, and Hybrid Power Technologies, the last two being for EM2 and Hybrid SMR, not PWRs.
Its development is further off. [Back]. Each reactor has a single steam generator with 19 elements (665 tubes). script.setAttribute("onerror", "setNptTechAdblockerCookie(true);"); It is also envisaged for use in Russia, mainly as cogeneration unit. A design certification application was expected by NRC in September 2013, but the company has stepped back from lodging one while it re-assesses the market for small reactors. * Well-advanced designs understood to be on hold or abandoned.
This is not a small reactor, and details are in the information page on Fast Neutron Reactors and at TerraPower. It is based on the NHR-5 which was commissioned in 1989, and runs at lower temperature than the above designsh. About 39% of the power will come from thorium (via in situ conversion to U-233, cf two thirds in domestic AHWR), and burn-up will be 64 GWd/t. The fuel assemblies can be moved laterally without removing them.
Conceived in sizes 10-100 MWe, main development was focused on a 45 MWt/20 MWe version as part of the US Generation IV effort. With TerraPower and ORNL, X-energy is designing the Xe-100 pebble-bed HTR of 48 MWe. Distinct from other small reactor designs, heatpipe reactors use a fluid in numerous sealed horizontal steel heatpipes to passively conduct heat from the hot fuel core (where the fluid vapourises) to the external condenser (where the fluid releases latent heat of vapourisation) with a heat exchanger. Nuclear Seawater Desalination Plant Coupled with 200 MW Heating Reactor, Haijun Jia and Yajun Zhang, Institute of Nuclear Energy Technology (INET), Tsinghua University, Beijing, China, presented at the International Symposium on the Peaceful Applications of Nuclear Technology in the Gulf Co-operation Council (GCC) Countries, Jeddah, Saudi Arabia (3-5 November 2008) Spent LWR fuel would have the uranium extracted for recycle, leaving Pu and minor actinides to become part of the MSR fuel, with thorium. A related SNERDI project is the CAP50 reactor for floating nuclear power plants. 10.
However, the only HTR project currently proceeding is the Chinese HTR-PM. It was therefore delaying its plans, though small reactors remain on its agenda. In May 2019 the BWRX-300 was submitted to Canada’s CNSC for a pre-licensing vendor design review. The NuScale Power company was spun out of Oregon State University in 2007, though the original development was funded by the US Department of Energy. Small modular reactors (SMRs) are defined as nuclear reactors generally 300 MWe equivalent or less, designed with modular technology using module factory fabrication, pursuing economies of series production and short construction times.
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