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Molten fuel nuclear reactor with neutron reflecting coolant

專利號
US10867710B2
公開日期
2020-12-15
申請人
TerraPower, LLC（US WA Bellevue）
發(fā)明人
Anselmo T. Cisneros, Jr.; Charles Gregory Freeman; Kevin Kramer; Jeffery F. Latkowski
IPC分類
G21C7/28; G21C3/54; G21C1/02; G21C7/22; G21C1/22; G21C15/28; G21C1/32; G21C7/27; G21C11/06; G21C15/02
技術(shù)領(lǐng)域
neutron,reflector,reactor,fuel,neutrons,in,core,flowing,material,molten
地域： WA WA Bellevue

摘要

Configurations of molten fuel salt reactors are described that utilize neutron-reflecting coolants or a combination of primary salt coolants and secondary neutron-reflecting coolants. Further configurations are described that circulate liquid neutron-reflecting material around a reactor core to control the neutronics of the reactor. Furthermore, configurations which use the circulating neutron-reflecting material to actively cool the containment vessel are also described. A further configuration is described that utilizes a core barrel between a reactor core volume of molten fuel salt and a reflector volume, in which the reflector volume contains a plurality of individual reflector elements separated by an interstitial space filled with molten fuel salt.

說明書

The moderating volumetric displacement members 812 may be inserted into channels 808 singly or in any plurality of members. Moderating volumetric displacement members 812 may take on a cylindrical shape, a square or rectangular prism shape, a triangular prism shape, a polygonal prism shape and the like. In another implementation, moderating volumetric displacement members 812 may include a set of members (not shown). Selection of the geometric shape and number of moderating volumetric displacement members 812 per channel 808 will determine the ratio of moderating material to reflector material in channels 808. Selectively inserting moderating volumetric displacement members 812 permits adjustment of breed rate and reactivity in fuel region 802 and allows maintenance of a desired burnup level. In an implementation, a burnup rate is maintained within a desired upper and lower bound by selectively inserting and removing at least a subset of moderating volumetric displacement members 812.

權(quán)利要求

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