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    SYSTEMS AND METHODS OF THERMOELECTRIC COOLING IN POWER PLANTS
    74.
    发明公开
    SYSTEMS AND METHODS OF THERMOELECTRIC COOLING IN POWER PLANTS 审中-公开

    公开(公告)号：US20240194361A1

    公开(公告)日：2024-06-13

    申请号：US18077293

    申请日：2022-12-08

    申请人： GE-Hitachi Nuclear Energy Americas LLC

    发明人： Hanying Liu ,  Charles L. Heck

    IPC分类号： G21C15/02 ,  F25B21/02 ,  G21C15/28

    CPC分类号： G21C15/02 ,  F25B21/02 ,  G21C15/28

    摘要： Systems and methods provide a thermoelectric cooler to cool a variety of high-energy power plant geometries and configurations. The thermoelectric cooler is thermally connected at heat sink side to a component to be cooled, including coolant structural components, for the plant. A heat rejection side of the cooler is thermally connected to a heat sink, including ambient air, a plant structure, or a fluid coolant. Electricity may be selectively applied to the cooler to generate a temperature difference and heat flux between the heat sinking side and heat rejection side. Radiation-resilient materials may be used in the cooler in the case of nuclear installations. Power sources include batteries, plant or grid electrical power, dedicated generators, or any other power source, potentially at relatively low ratings, such as only hundreds of watts, that will provide desired thermoelectric cooling.

    Cross-over fluid coupling
    77.
    发明授权
    Cross-over fluid coupling 有权

    公开(公告)号：US11079054B2

    公开(公告)日：2021-08-03

    申请号：US15735374

    申请日：2016-06-22

    申请人： ATOMIC ENERGY OF CANADA LIMITED

    发明人： James M. King ,  Andrew B. Kittmer ,  Terry J. Schaubel

    IPC分类号： F16L39/00 ,  F16L9/19 ,  F28F9/26 ,  F28D7/10 ,  F28F13/06 ,  G21C3/322 ,  G21C15/02 ,  G21C3/328 ,  G21C1/20 ,  G21C21/00

    摘要： A cross-over fluid coupling includes a first coupling end and a second coupling end. A plurality of first conduits have inner ends disposed toward the first coupling end and outer ends spaced apart from the inner end toward the second coupling end and being outboard of the inner end. A plurality of second conduits have outer ends that are disposed toward the first coupling end and positioned laterally outboard of the inner end of at least one of the first conduits, and inner ends that are spaced apart from the outer end toward the second coupling end in the axial direction and is laterally inboard of the outer end of the at least one of the first conduits.

    Systems and methods for airflow control in reactor passive decay heat removal
    78.
    发明授权
    Systems and methods for airflow control in reactor passive decay heat removal 有权

    公开(公告)号：US10937557B2

    公开(公告)日：2021-03-02

    申请号：US15785548

    申请日：2017-10-17

    申请人： GE-Hitachi Nuclear Energy Americas LLC

    发明人： James P. Sineath ,  Dean D. Molinaro ,  William C. Dawn ,  Eric P. Loewen

    IPC分类号： G21C15/02 ,  G21C15/18 ,  G21C9/00 ,  G21C13/02 ,  G21C15/26

    摘要： Damper systems selectively reduce coolant fluid flow in nuclear reactor passive cooling systems, including related RVACS. Systems include a damper that blocks the flow in a coolant conduit and is moveable to open, closed, and intermediate positions. The damper blocks the coolant flow when closed to prevent heat loss, vibration, and development of large temperature gradients, and the damper passively opens, to allow full coolant flow, at failure and in transient scenarios. The damper may be moveable by an attachment extending into the coolant channel that holds the damper in a closed position. When a transient occurs, the resulting loss of power and/or overheat causes the attachment to stop holding the damper, which may be driven by gravity, pressure, a spring, or other passive structure into the open position for full coolant flow. A power source and temperature-dependent switch may detect and stop holding the damper closed in such scenarios.

    Riser cone apparatus to provide compliance between reactor components and minimize reactor coolant bypass flow
    80.
    发明授权
    Riser cone apparatus to provide compliance between reactor components and minimize reactor coolant bypass flow 有权

    公开(公告)号：US10600520B2

    公开(公告)日：2020-03-24

    申请号：US15483466

    申请日：2017-04-10

    申请人： BWXT mPower, Inc.

    发明人： Tyler A. Edwards ,  Scott J. Shargots

    IPC分类号： G21C13/028 ,  G21C13/02 ,  G21C13/04 ,  G21C1/32 ,  G21C15/00 ,  G21C15/02

    摘要： A riser cone has a lower end sized to engage a cylindrical lower riser section of a nuclear reactor and an upper end sized to engage a cylindrical upper riser section of the nuclear reactor. The riser cone defines a compression sealing ring that is compressed between the lower riser section and the upper riser section in the assembled nuclear reactor. In some embodiments the riser cone comprises: a lower element defining the lower end of the riser cone; an upper element defining the upper end of the riser cone; and a compliance spring compressed between the lower element and the upper element. In some embodiments the riser cone comprises a frustoconical compression sealing ring accommodating a reduced diameter of the upper riser section as compared with the diameter of the lower riser section.