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    Doppler reactivity augmentation device
    1.
    发明授权
    Doppler reactivity augmentation device 有权

    公开(公告)号：US11031142B2

    公开(公告)日：2021-06-08

    申请号：US14839418

    申请日：2015-08-28

    申请人： TerraPower, LLC

    发明人： Jesse R. Cheatham, III ,  Mark W. Reed ,  Micah J. Hackett

    IPC分类号： G21C7/02 ,  G21C7/06 ,  G21C1/02 ,  G21C7/08

    摘要： A fast neutron nuclear reactor contains a nuclear reactor core having an array of device locations. Some device locations in the nuclear reactor core contain fissile and fertile nuclear fuel assembly devices. One or more other device locations in the nuclear reactor core contain Doppler reactivity augmentation devices that amplify the negativity of the Doppler reactivity coefficient within the nuclear reactor core. In some implementations, a Doppler reactivity augmentation device can also reduce the coolant temperature coefficient within the nuclear reactor core. Accordingly, a Doppler reactivity augmentation device contributes to a more stable nuclear reactor core.

    Method for preparing a built-in part of a fuel element of a pressurized water nuclear reactor for disposal, and corresponding conditioned built-in part
    2.
    发明申请
    Method for preparing a built-in part of a fuel element of a pressurized water nuclear reactor for disposal, and corresponding conditioned built-in part 审中-公开
    制备用于处置的加压水核反应堆的燃料元件的内置部分的方法，以及相应的经调节的内置部件

    公开(公告)号：US20050207524A1

    公开(公告)日：2005-09-22

    申请号：US11039610

    申请日：2005-01-18

    申请人： Klaus Knecht ,  Wolfgang Hummel

    发明人： Klaus Knecht ,  Wolfgang Hummel

    IPC分类号： G21C7/02

    CPC分类号： G21C19/34 ,  G21F9/34

    摘要： A method for preparing a built-in part for disposal including the steps of mounting a supporting element such that it can be displaced in an axially elastic manner by a spring on a head of the built-in part and being used for support on the grid plate of the head frame of a fuel element. The supporting element is fixed in a pushed-back position against the action of the spring, enabling a common disposal of the built-in part with the fuel element.

    摘要翻译： 一种制备用于处理的内置部件的方法，包括安装支撑元件的步骤，使得其可以通过内置部件的头部上的弹簧以轴向弹性方式移位并用于支撑在电网上 燃料元件的头架的板。 支撑元件抵抗弹簧的作用被固定在推回位置，使得内置部件与燃料元件的共同处置。