Heute sind die einzigen Brutreaktoren im kommerziellen Betrieb der BN-600 und der BN-800 in Russland (Stand 2015). A liquid metal fast breeder (LMFBR) is a type of nuclear reactor which is capable of producing more so-called fissile material than it takes in. 104, No. This supplement describes a number of modifications to the Liquid Metal Fuel Reactor Experiment (LMFRE), including (1) engineering design changes to achieve economies in the original reference design, and (2) a revised cost estimate that reapportions the various construction, research and development, and operating costs in accordance with procedures established by the Atomic Energy Commission. While pressurised water could theoretically be used for a fast reactor, it tends to slow down neutrons and absorb them. Liquid-metal reactors. Environmental statement. However, the date of retrieval is often important. Liquid metal cooled reactors were first adapted for nuclear submarine use but have also been extensively studied for power generation applications. Many Generation IV reactor studies are liquid metal cooled: Bunker, Merle E. "Early Reactors From Fermi’s Water Boiler to Novel Power Prototypes" a chapter in, http://library.lanl.gov/cgi-bin/getfile?00416628.pdf, http://www.ncnr.nist.gov/resources/n-lengths/elements/hg.html, http://www.osti.gov/energycitations/product.biblio.jsp?osti_id=4803122, ATMOSPHERIC CORROSION OF TIN AND TIN ALLOY, Ukraine advises Japan to use tin to cool Fukushima reactor, The Decay of the Atomic Powered Aircraft Program, Small sealed transportable autonomous (SSTAR), https://en.wikipedia.org/w/index.php?title=Liquid_metal_cooled_reactor&oldid=996129573, Articles with dead external links from March 2018, Articles with unsourced statements from November 2019, Creative Commons Attribution-ShareAlike License, This page was last edited on 24 December 2020, at 18:26. Sodium-cooled fast-neutron-spectrum liquid-metal reactors (LMRs) received much attention during the 1960s and ’70s when it appeared that their breeding capabilities would soon be needed to supply fissile material to a rapidly expanding nuclear industry. Reactor designs As of 2006, all large-scale FBR power stations have been liquid metal fast breeder reactor (LMFBR) reactors cooled by liquid sodium.These have been of one of two designs: Loop type, in which the primary coolant is circulated through primary heat exchangers external to the reactor tank (but within the biological shield type, in which : USDOE OSTI Identifier: 4200425 Report Number(s): WASH … A liquid metal fast breeder reactor (LMFBR) is a nuclear reactor capable of producing more fissile product than it takes in. Sponsoring Org. Liquid metal cooling is also used in most fast neutron reactors including fast breeder reactors such as the Integral Fast Reactor. Ideally the coolant should never boil as that would make it more likely to leak out of the system, resulting in a loss-of-coolant accident. This study identifies and assesses the issues relevant to the Federal Government’s role in the development of the LMFBR. It has been tested by Ukrainian researchers and was proposed to convert the boiling water reactors at the Fukushima Daiichi nuclear disaster into liquid tin cooled reactors.[6]. However, because lead has a high melting point and a high vapor pressure, it is tricky to refuel and service a lead cooled reactor. Volume I. This makes them attractive … This makes them attractive in situations where size and weight are at a premium, like on ships and submarines. Metal coolants remove heat more rapidly and allow much higher power density. They do, however, ignite spontaneously on contact with air and react violently with water, producing hydrogen gas. Liquid metal use in fast breeder reactors has long been considered for the improvement of efficiency in their heat transfer systems. In particular, the reliable determination of sub-critical reactivity for a Liquid-Metal-Cooled Fast Breeder Reactor (LMFBR) is required in the United States Atomic Energy Commission (USAEC) LMFBR program plan [1]. Nucl. In a second modification, it … Conversely, if the coolant can be prevented from boiling this allows the pressure in the cooling system to remain at neutral levels, and this dramatically reduces the probability of an accident.
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