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58 条记录 (耗时 0.014 秒)

    Use of boron or enriched boron 10 in UO2
    4.
    发明公开
    Use of boron or enriched boron 10 in UO2 审中-公开
    在UO2中的Verwendung von Bor oder angereichertem Bor

    公开(公告)号：EP1647993A2

    公开(公告)日：2006-04-19

    申请号：EP05017656.9

    申请日：2005-08-12

    申请人： Westinghouse Electric Company LLC

    发明人： Lahoda, Eward J. ,  Hallstadius, Lars G.

    IPC分类号： G21C3/58 ,  G21C3/62

    CPC分类号： G21C3/62 ,  G21C3/58 ,  Y02E30/38 ,  Y10S376/901

    摘要： The present invention provides a nuclear fuel assembly, where a boron-containing compound is used as a burnable poison and is distributed in a majority of the rods in the assembly. The assembly comprises a plurality of fuel rods, each fuel rod containing a plurality of nuclear fuel pellets, wherein at least one fuel pellet in more than 50% of the fuel rods in the fuel assembly comprises a sintered admixture of a metal oxide, metal carbide or metal nitride and a boron-containing compound.

    摘要翻译： 本发明提供一种核燃料组件，其中使用含硼化合物作为可燃毒物并且分布在组件中的大部分棒中。 该组件包括多个燃料棒，每个燃料棒包含多个核燃料颗粒，其中燃料组件中超过50％的燃料棒中的至少一个燃料颗粒包含金属氧化物，金属碳化物的烧结混合物 或金属氮化物和含硼化合物。

    Nuclear fuel pellet
    5.
    发明公开
    Nuclear fuel pellet 失效
    Kernbrennstofftablette

    公开(公告)号：EP0788117A1

    公开(公告)日：1997-08-06

    申请号：EP97100367.8

    申请日：1997-01-10

    申请人： Siemens Power Corporation

    发明人： van Swam, Leonard F.P.

    IPC分类号： G21C3/62

    CPC分类号： G21C3/623 ,  G21C3/58 ,  Y02E30/38

    摘要： A nuclear fuel pellet (100) having concentric layers of nuclear fuel in which an outer layer (130) has less fissionable nuclear fuel per unit volume and substantially the same amount of fertile material per unit volume as an inner core (110).

    摘要翻译： 一种核燃料颗粒（100），其具有核燃料的同心层，其中外层（130）每单位体积具有较少的可裂变核燃料，和与内芯（110）每单位体积基本上相同的可育材料量。

    METHODS AND APPARATUSES FOR STABILIZING NUCLEAR FUEL CONTAINING REACTIVE SODIUM METAL
    8.
    发明公开
    METHODS AND APPARATUSES FOR STABILIZING NUCLEAR FUEL CONTAINING REACTIVE SODIUM METAL 审中-公开
    方法和装置用于稳定的核燃料硫酸氢钠活性金属

    公开(公告)号：EP2896047A1

    公开(公告)日：2015-07-22

    申请号：EP13760146.4

    申请日：2013-08-14

    申请人： Ge-Hitachi Nuclear Energy Americas LLC

    发明人： LOEWENE, Eric, P. ,  TRIPLETT, Brian, S. ,  DOOIES, Brett, J.

    IPC分类号： G21C3/52 ,  G21C3/58 ,  G21F9/30

    CPC分类号： G21F9/008 ,  G21C3/52 ,  G21C3/58 ,  G21F9/30 ,  Y02E30/38

    摘要： A method of stabilizing a fuel containing a reactive sodium metal may include puncturing a cladding of a fuel pin enclosing the fuel containing the reactive sodium metal to form an injection passage and an extraction passage. A reaction gas may be injected into the fuel pin through the injection passage to react with the reactive sodium metal to form a stable sodium compound. A ratio of a product gas and a remaining quantity of the reaction gas exiting the fuel pin through the extraction passage is subsequently measured, wherein the product gas is a reaction product of the reaction gas and the reactive sodium metal within the fuel pin. Once the measured ratio indicates that a reaction between the reaction gas and the reactive sodium metal is complete, the injection passage and the extraction passage are sealed so as to confine the stable sodium compound within the fuel pin.

    A fuel assembly for a nuclear reactor
    9.
    发明公开
    A fuel assembly for a nuclear reactor 审中-公开
    Brennstoffbündelfüreinen Kernreaktor

    公开(公告)号：EP2869306A1

    公开(公告)日：2015-05-06

    申请号：EP13190901.2

    申请日：2013-10-30

    申请人： Thor Energy AS

    发明人： Insulander Björk, Klara ,  Helmersson, Sture

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

    CPC分类号： G21C3/326 ,  G21C3/16 ,  G21C3/328 ,  G21C3/58 ,  G21C3/62 ,  G21C7/005 ,  G21C2003/045 ,  Y02E30/38 ,  Y02E30/39

    摘要： A fuel assembly (1) for a nuclear reactor comprises a bundle of fuel rods (3) with a first group of fuel rods (5a) and a second group of fuel rods (5b). Each fuel rod comprises a cladding tube (15) and stack of fuel pellets (12) enclosed within the cladding tube. At least a main portion (13) of the fuel stack comprises a fissile nuclear material comprising Plutonium and Thorium, and is arranged with an axial hole (22). Said main portion (13) of the fuel stack of each fuel rod (5a) of the first group comprises a first axial hole (22a) constituting a first volume and said main portion of the fuel stack of each fuel rod (5b) of the second group comprises a second axial hole (22b) 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（1）包括具有第一组燃料棒（5a）和第二组燃料棒（5b）的一束燃料棒（3）。 每个燃料棒包括包层管（15）和包围在包层管内的燃料颗粒堆叠（12）。 燃料堆的至少一个主要部分（13）包括一种包含钚和钍的裂变核材料，并且设置有轴向孔（22）。 第一组的每个燃料棒（5a）的燃料堆的所述主要部分（13）包括构成第一容积的第一轴向孔（22a）和每个燃料棒（5b）的燃料堆叠的主要部分 第二组包括构成第二容积的第二轴向孔（22b）。 第一卷和第二卷不同。