SMALL, FAST NEUTRON SPECTRUM NUCLEAR POWER PLANT WITH A LONG REFUELING INTERVAL

    公开(公告)号:US20200027575A1

    公开(公告)日:2020-01-23

    申请号:US16518925

    申请日:2019-07-22

    Inventor: Leon C. Walters

    Abstract: Nuclear reactor systems and methods are described having many unique features tailored to address the special conditions and needs of emerging markets. The fast neutron spectrum nuclear reactor system may include a reactor having a reactor tank. A reactor core may be located within the reactor tank. The reactor core may include a fuel column of metal or cermet fuel using liquid sodium as a heat transfer medium. A pump may circulate the liquid sodium through a heat exchanger. The system may include a balance of plant with no nuclear safety function. The reactor may be modular, and may produce approximately 100 MW e.

    FABRICATION OF METALLIC NUCLEAR FUEL
    3.
    发明申请
    FABRICATION OF METALLIC NUCLEAR FUEL 审中-公开
    金属核燃料的制造

    公开(公告)号:US20160217876A1

    公开(公告)日:2016-07-28

    申请号:US15003329

    申请日:2016-01-21

    Inventor: Leon C. Walters

    CPC classification number: G21C21/16 B22D17/00 B22D21/02 B22D25/02

    Abstract: Systems and methods for fabricating metallic nuclear fuels are described. Methods may include preparing a metal feedstock charge; injection casting the metal feedstock charge into one or more molds to form one or more injection cast fuel slugs; determining one or more properties of the one or more injection cast fuel slugs; inserting one or more injection cast fuel slugs with acceptable properties into one or more jackets to form a plurality of fuel pins; and assembling a plurality of fuel pins into a multi-pin fuel assembly. The method may produce at least one multi-pin fuel assembly per day, wherein each of the at least one multi-pin fuel assemblies includes at least one hundred fuel pins.

    Abstract translation: 描述了制造金属核燃料的系统和方法。 方法可包括制备金属原料装料; 将金属原料进料注入铸造成一个或多个模具以形成一个或多个注射铸造燃料块塞; 确定所述一个或多个注射铸造燃料段的一个或多个性质; 将具有可接受性质的一个或多个注射铸造燃料块插入一个或多个夹套中以形成多个燃料销; 以及将多个燃料销组装到多销燃料组件中。 该方法可以每天产生至少一个多针燃料组件,其中至少一个多销燃料组件中的每一个包括至少一百个燃料销。

    Ceramic nuclear fuel dispersed in a metallic alloy matrix

    公开(公告)号:US10424415B2

    公开(公告)日:2019-09-24

    申请号:US14680732

    申请日:2015-04-07

    Inventor: Leon C. Walters

    Abstract: Systems and methods for manufacturing metal fuel are described. Methods for fabricating a metal-fuel-matrix cermet nuclear fuel may include crushed ceramic particles combined with metallic fast reactor fuel via bottom pour casting or injection casting, or a powdered metallurgical process. A maximum quantity of crushed ceramic particles added to the metallic fuel must not exceed that which would fail to yield a continuous matrix of metal fuel. After a short irradiation period, the microstructure of the fuel may be substantially identical to that of injection cast fuel, without crushed ceramic particles, irrespective of the fabrication process. Thus, the extensive existing database for injection cast fuel, without crushed ceramic particles, may be an excellent indicator of expected irradiation performance. Each of the processes may contribute to a solution of the spent nuclear fuel problem and may denature Pu239 during the process.

    CERAMIC NUCLEAR FUEL DISPERSED IN A METALLIC ALLOY MATRIX
    9.
    发明申请
    CERAMIC NUCLEAR FUEL DISPERSED IN A METALLIC ALLOY MATRIX 有权
    在金属合金矩阵中分散的陶瓷核燃料

    公开(公告)号:US20150294747A1

    公开(公告)日:2015-10-15

    申请号:US14680732

    申请日:2015-04-07

    Inventor: Leon C. Walters

    Abstract: Systems and methods for manufacturing metal fuel are described. Methods for fabricating a metal-fuel-matrix cermet nuclear fuel may include crushed ceramic particles combined with metallic fast reactor fuel via bottom pour casting or injection casting, or a powdered metallurgical process. A maximum quantity of crushed ceramic particles added to the metallic fuel must not exceed that which would fail to yield a continuous matrix of metal fuel. After a short irradiation period, the microstructure of the fuel may be substantially identical to that of injection cast fuel, without crushed ceramic particles, irrespective of the fabrication process. Thus, the extensive existing database for injection cast fuel, without crushed ceramic particles, may be an excellent indicator of expected irradiation performance. Each of the processes may contribute to a solution of the spent nuclear fuel problem and may denature Pu239 during the process.

    Abstract translation: 描述了用于制造金属燃料的系统和方法。 用于制造金属 - 燃料 - 基质金属陶瓷核燃料的方法可以包括通过底部浇铸或注射铸造与金属快速反应堆燃料结合的粉碎陶瓷颗粒,或粉末冶金方法。 添加到金属燃料中的最大量的粉碎的陶瓷颗粒不得超过不能产生金属燃料的连续基质的颗粒。 在短的照射时间之后,不管制造过程如何,燃料的微结构可以与没有粉碎的陶瓷颗粒的注射铸造燃料的显微组织基本相同。 因此,广泛的现有的注射铸造燃料数据库,没有破碎的陶瓷颗粒,可能是预期辐射性能的一个很好的指标。 每个过程可能有助于解决乏燃料问题,并可能在该过程中使Pu239变性。

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