helium cooled fast reactor

US-based General Atomics Electromagnetic Systems (GA-EMS) intends to collaborate with Framatome on the development of its helium-cooled, 50MWe fast modular reactor (FMR). The passively safe gas-cooled FMR will use a non-hazardous helium coolant—a chemically inert gas that is nonexplosive, non-corrosive, and does not become activated. Because the reactor is dry-cooled and uses virtually no water to operate, it can be sited nearly anywhere. Read More; nuclear reactors It is designed as a modular, grid-capable power source with a net unit output of 265 MWe. The core consists of a graphite cylinder with a radius of 4 m and a height of 10 m which includes 1 m axial reflectors at top and bottom. fast breeder reactors. Because the reactor is dry-cooled and uses virtually no water to operate, it can be sited nearly … This is a modified version of its Gas-Turbine Modular Helium Reactor (GT-MHR) design. The research of Gas Cooled Fast Reactor (GCFR) concepts was started by compiling a list of earlier GCFR research. In 2010 General Atomics conceptualized a new reactor that utilizes the power conversion features of the GT-MHR, the Energy Multiplier Module (EM2). One of a number of concepts in which interest has been retained is the Gas-Cooled Fast Reactor (GCFR). Yellowlees et al. In breeder reactor: Fast breeder reactors …are cooled with helium, and sodium-cooled and lead-cooled fast reactors. Framatome and General Atomics announce collaboration to develop fast modular reactor October 13, 2020 – Framatome and General Atomics Electromagnetic Systems (GA-EMS) today announced plans to collaborate on the development of GA-EMS’ helium-cooled 50-MWe fast modular reactor (FMR). The power conversion forgoes the use of complex steam generators and pressurizers, and the fuel will operate for approximately 9 years before requiring replacement. These high coolant temperatures can be utilized completely through direct connection of a gas turbine. EM 2 is a helium-cooled fast reactor with a core outlet temperature of 850°C. The Gas Turbine Modular Helium Reactor (GT-MHR) is a nuclear fission power reactor design that was under development by a group of Russian enterprises (OKBM Afrikantov, Kurchatov Institute, VNIINM and others), an American group headed by General Atomics, French Framatome and Japanese Fuji Electric. This direct connection of the gas turbine with the reactor is feasible provided that the coolant employed is inert and not susceptible to activation. This paper deals with the thermo-hydraulic aspect of gas cooled fast 4 generation reactor. Gas-Cooled Reactor is cooled by flowing gas and designed to operate at high temperatures. The secondary loop is also a gas loop; usually helium, although other fluids under consideration include air and nitrogen. The reactor system consists of a helium primary circuit, a secondary water circuit, with the final heat sink being the atmosphere. The FMR will be designed for enhanced safety and ease of operation with fast-response load following and overall high efficiency. It is … It’s a much more difficult gas to move with compressors or circulators and to use to spin turbines. Chermanne [4]. The reactor and containment structure are located below grade and in contact with the ground, which serves as a passive safety measure to conduct heat away from the reactor in the event of a coolant failure.[2]. The reactor is sited in a below-grade sealed containment and uses passive safety methods for … “Our two companies bring together more than 100 years of combined experience in maturing advanced nuclear technologies to help secure future U.S. clean energy needs.”, “This collaboration builds on our long relationship with General Atomics with a shared interest in advancing nuclear energy technologies to create a cleaner world for generations to come,” said Bernard Fontana, Chief Executive Officer of Framatome. 0 C in the case of gas-cooled fast breeder reactors. The reactor employs a "convert and burn" core design which converts fertile isotopes to fissile and burns them in situ over a 30-year core life. Gas-Cooled Fast Reactor (GFR) Fuel and In-Core Fuel Management Kevan D. Weaver, James Sterbentz Idaho National Engineering and Environmental Laboratory P.O. The reference design for GFR is 2 400 MWth The high outlet temperature of the helium coolant enables to deliver electricity, hydrogen, or process heat with high conversion efficiency As a one of fast reactor would produce heat about 850°C, which will be able to chemically produce hydrogen It combines the advantages of fast-spectrum systems for long-term sustainability of uranium resources and waste minimisation (through fuel multiple reprocessing and fission of long-lived actinides), with those of high-temperature systems (high thermal cycle efficiency and industrial use of the generated … In the United States, a helium-cooled fast reactor proposal, called the Energy Multiplier Module (EM2), uses as its fuel the spent fuel from existing reactors without prior reprocessing. Several sources have been used for this compilation: books, e.g. “There is strong interest across the industry in the future commercialization of the FMR. [1] It is a helium cooled, graphite moderated reactor and uses TRISO fuel compacts in a prismatic core design. Gas-cooled fast reactors fast helium 850 high U-238 + closed, on site 1200 electricity & hydrogen Lead-cooled fast reactors fast lead or Pb-Bi 480-570 low U-238 + closed, regional 20-180** 300-1200 600-1000 electricity & hydrogen Molten salt fast reactors fast fluoride salts 700-800 low UF in salt closed 1000 electricity & hydrogen These interesting aspects make HTGR worthy of discussion on the future advanced reactors. Each hexagonal block contains 108 helium coolant channels and 216 fuel pins. All rights reserved. edited by M. Da11 e Donne • This report was prepared at the request of the OECD-NEA Coordinating Group on Gas Cooled Fast Reactor Development and it represents a contribution (Vol. Reactors heat sources tend to work well with helium as their cooling medium. The passively safe gas-cooled FMR will use a non-hazardous helium coolant—a chemically inert gas that is nonexplosive, non-corrosive, and does not become activated. The FMR will be designed for enhanced safety and ease of operation with fast-response load following and overall high efficiency. [4], Labar, Malcomb P. "The Gas Turbine Modular Helium Reactor: A promising option for near term deployment" San Diego, CA; General Atomics Presentation; 2002, CS1 maint: BOT: original-url status unknown (, The Fifty Percent Efficiency Nuclear Power Plant, Small sealed transportable autonomous (SSTAR), https://en.wikipedia.org/w/index.php?title=Gas_turbine_modular_helium_reactor&oldid=995753729, CS1 maint: BOT: original-url status unknown, Creative Commons Attribution-ShareAlike License, This page was last edited on 22 December 2020, at 18:37. The GFR system is a high-temperature helium-cooled fast-spectrum reactor with a closed fuel cycle. The EM2 employs a 500 MWt, 265 MWe helium-cooled fast-neutron high-temperature reactor operating at 850 degrees Celsius. EM2 is rated at 500 MWt with … Our design will employ technologies for safe and reliable operation that can be sited virtually anywhere to expand distributed electricity generation.”, About General Atomics Electromagnetic Systems, General Atomics Electromagnetic Systems (GA-EMS) Group is a global leader in the research, design, and manufacture of first-of-a-kind electromagnetic and electric power generation systems. The Generation IV Gas-cooled Fast Reactor (GFR) concept is proposed to combine the advantages of high-temperature gas-cooled reactors (such … In 2010 General Atomics conceptualized a new reactor that utilizes the power conversion features of the GT-MHR, the Energy Multiplier Module (EM2). The paper is focused on the comparison of direct and indirect strategy of thermodynamics cycle of helium cooled reactor from the thermodynamics and turbomachinary point of view. During this period, the GCFR concept was found to be more challenging than liquid-metal-cooled reactors, and none were ever constructed. Box 1625, Idaho Falls, Idaho 83415-3850 USA weavkd@inel.gov Mitchell Meyer Argonne National Laboratory - West Rick Lowden Oak Ridge National Laboratory Idaho National Engineering and Environmental Laboratory Ed Hoffman, Thomas … Commercial LWRs average 32% efficiency, again as of 1995. Values are taken from the default NuclearCraft configs (as of v2.12e). Values are taken from the default NuclearCraft config (as of December 15 2017, v2.7a). As presently envisioned, it would operate on the uranium-plutonium mixed oxide fuel cycle, similar to that used in the Liquid Metal Fast Breeder Reactor (LMFBR), and would use helium gas as the coolant. Operate, it can be sited nearly anywhere TRISO particles dispersed into a graphite matrix interest been... 6 General Atomics GCFR concept was found to be inherently safe located about... 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