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    Fuel assembly for a nuclear power boiling water reactor
    1.
    发明授权
    Fuel assembly for a nuclear power boiling water reactor 有权

    公开(公告)号：US10726958B2

    公开(公告)日：2020-07-28

    申请号：US15518920

    申请日：2015-10-12

    申请人： THOR ENERGY AS

    发明人： Klara Insulander Björk ,  Øystein Asphjell

    IPC分类号： G21C3/32 ,  G21C3/328 ,  G21C3/58 ,  G21C3/62 ,  G21C7/06 ,  G21C3/326 ,  G21C7/00 ,  G21C3/16 ,  G21C3/04

    摘要： The present invention concerns a fuel assembly for a nuclear power boiling water reactor. The fuel assembly comprises fuel rods. At least 95% of the fuel rods comprise nuclear fuel material in the form of U enriched in 235U. At least 20% of the fuel rods belong to a first set of fuel rods. The fuel rods in this first set comprise both U enriched in 235U and Th. The first set comprises a first and a second subset of fuel rods. The ratio, with regard to weight, between Th and U, in each fuel rod of said first subset, is higher than the ratio, with regard to weight, between Th and U, in each fuel rod of said second subset. The invention also concerns a nuclear power boiling water reactor and a manner of operating such a reactor.

    A FUEL ASSEMBLY FOR A NUCLEAR REACTOR
    2.
    发明申请
    A FUEL ASSEMBLY FOR A NUCLEAR REACTOR 审中-公开
    核反应堆燃料组件

    公开(公告)号：US20160284428A1

    公开(公告)日：2016-09-29

    申请号：US15032808

    申请日：2014-10-30

    申请人： THOR ENERGY AS

    发明人： Klara Insulander Björk ,  Sture Helmersson

    IPC分类号： G21C3/326 ,  G21C7/00 ,  G21C3/58 ,  G21C3/62 ,  G21C3/16 ,  G21C3/328

    CPC分类号： G21C3/326 ,  G21C3/045 ,  G21C3/16 ,  G21C3/328 ,  G21C3/58 ,  G21C3/62 ,  G21C7/005 ,  Y02E30/38 ,  Y02E30/39

    摘要： A fuel assembly for a nuclear reactor includes a bundle of fuel rods with a first group of fuel rods and a second group of fuel rods. Each fuel rod includes a cladding tube and stack of fuel pellets enclosed within the cladding tube. At least a main portion of the fuel stack includes a fissile nuclear material comprising Plutonium and Thorium, and is arranged with an axial hole. Said main portion of the fuel stack of each fuel rod of the first group includes a first axial hole constituting a first volume and said main portion of the fuel stack of each fuel rod of the second group includes a second axial hole constituting a second volume. The first volume and the second volume are different.

    摘要翻译： 用于核反应堆的燃料组件包括具有第一组燃料棒和第二组燃料棒的一组燃料棒。 每个燃料棒包括包层管和包封在包壳管内的一堆燃料颗粒。 燃料堆的至少主要部分包括包含钚和钍的易裂变核材料，并且设置有轴向孔。 所述第一组的每个燃料棒的所述燃料组的所述主要部分包括构成第一容积的第一轴向孔，并且所述第二组的每个燃料棒的所述燃料组的所述主要部分包括构成第二容积的第二轴向孔。 第一卷和第二卷不同。