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    NUCLEAR REACTOR FUEL ASSEMBLIES AND PROCESS FOR PRODUCTION
    1.
    发明申请
    NUCLEAR REACTOR FUEL ASSEMBLIES AND PROCESS FOR PRODUCTION 审中-公开

    公开(公告)号：WO2021243244A1

    公开(公告)日：2021-12-02

    申请号：PCT/US2021/034912

    申请日：2021-05-28

    Applicant: BWXT NUCLEAR ENERGY, INC.

    Inventor： SHARGOTS, Scott, J. ,  FITZNER, Scott, Lee ,  FLEMING, Emily ,  ZIEGLER, Ryan, Z. ,  OSWALD, Todd ,  BARGER, Earl, Brian

    IPC: G21D5/02 ,  G21D5/06 ,  B64G1/40

    Abstract: A nuclear fuel assembly for a nuclear reactor core, the fuel assembly having at least one fuel element including an elongated shell defining an interior volume, a lattice structure disposed within the interior volume, at least one flow channel extending through the lattice structure, at least one lattice site disposed in the lattice structure, and at least one fuel compact disposed within a corresponding one of the at least one lattice site, a first end cap including a boss having a first cross-sectional shape, the first end cap being affixed to a first end of the shell, and a second end cap including a first bore having a second cross-sectional shape, the second end cap being affixed to a second end of the shell, wherein the first cross-sectional shape of the boss is the same as the cross-sectional shape of the bore.

    A METHOD OF OPERATING A NUCLEAR POWER PLANT AND A NUCLEAR POWER PLANT
    2.
    发明申请
    A METHOD OF OPERATING A NUCLEAR POWER PLANT AND A NUCLEAR POWER PLANT 审中-公开
    一种核电厂和核电厂的运行方法

    公开(公告)号：WO02078009B1

    公开(公告)日：2003-01-09

    申请号：PCT/IB0200601

    申请日：2002-02-28

    Applicant: PEBBLE BED MODULAR REACTOR PTY ,  KRIEL WILLEM ADRIAAN ODENDAAL ,  NIEUWOUDT MICHAEL CHRISTIAAN

    Inventor： KRIEL WILLEM ADRIAAN ODENDAAL ,  NIEUWOUDT MICHAEL CHRISTIAAN

    IPC: G21D5/06 ,  F02C1/05 ,  F02C9/24 ,  G21D1/02 ,  G21D3/08

    CPC classification number: F02C1/05 ,  F02C9/24 ,  F05D2210/12 ,  G21D1/02 ,  G21D3/08 ,  Y02E30/40

    Abstract: A nuclear power plant which includes a closed loop power generation circuit making use of helium as the working fluid. The plant further includes a helium inventory control system which includes a plurality of helium storage tanks whereby helium can be fed into or removed from the power generation circuit. Each helium storage tank is provided with a heat sink so that the tank has a relatively high thermal inertia which in turn restricts the temperature variation within the storage tank as a result of the introduction of helium into and/or the withdrawal of helium from the storage tank. This permits the optimization of the design of the storage tanks.

    Abstract translation: 一个核电厂，其中包括利用氦气作为工作流体的闭环发电电路。 该设备还包括氦库存控制系统，其包括多个氦储存罐，由此氦可以被供给到发电电路中或从发电电路中移除。 每个氦储罐都设有一个散热器，使得该储罐具有相对较高的热惯性，这又导致由于将氦引入和/或从储存器中排出氦而导致储罐内的温度变化 坦克。 这样可以优化储罐的设计。

    热声反应堆系统
    5.
    发明申请
    热声反应堆系统 审中-公开

    公开(公告)号：WO2021203936A1

    公开(公告)日：2021-10-14

    申请号：PCT/CN2021/081489

    申请日：2021-03-18

    Applicant: 中国科学院理化技术研究所

    Inventor： 胡剑英 ,  罗二仓 ,  陈燕燕 ,  张丽敏 ,  吴张华

    IPC: G21C1/32 ,  G21D5/06 ,  F03G7/00

    Abstract: 一种热声反应堆系统，包括热声反应堆装置，热声反应堆装置包括反应堆、与反应堆连接的回热器(2)、与回热器(2)连接的换热器(1)、连接在反应堆和换热器(1)之间的调相器(6)、以及由反应堆产生的能量驱动的发电机活塞(7)，还包括设置在热声反应堆装置外部且封闭热声反应堆装置的承压壳体(9)，热声反应堆装置的内部与承压壳体(9)的内部空间连通。热声反应堆系统，通过将热声反应堆装置放置在封闭的承压壳体(9)内，可使承压壳体(9)内的平均压力与热声反应堆装置内的平均压力相等，使回热器(2)承压壁面不再承受平均压差，可大大减小回热器(2)承压壁面的厚度，充分发挥热声发电机的最大功率。

    NUCLEAR REACTOR CORE ARCHITECTURE WITH ENHANCED HEAT TRANSFER AND SAFETY
    6.
    发明申请
    NUCLEAR REACTOR CORE ARCHITECTURE WITH ENHANCED HEAT TRANSFER AND SAFETY 审中-公开

    公开(公告)号：WO2021067903A1

    公开(公告)日：2021-04-08

    申请号：PCT/US2020/054190

    申请日：2020-10-04

    Applicant: ULTRA SAFE NUCLEAR CORPORATION

    Inventor： VENNERI, Paolo, Francesco ,  EADES, Michael, John ,  SOUZA, Kelsey ,  DEASON, Wesley

    IPC: G21C1/06 ,  G21C1/12 ,  G21C3/58 ,  G21C5/22 ,  G21C3/60 ,  B64D27/22 ,  G21D5/06

    Abstract: An enhanced architecture for a nuclear reactor core includes several technologies: (1) nuclear fuel tiles (S-Block); and (2) a high-temperature thermal insulator and tube liners with a low-temperature solid-phase moderator (U-Mod) to improve safety, reliability, heat transfer, efficiency, and compactness. In S-Block, nuclear fuel tiles include a fuel shape designed with an interlocking geometry pattern to optimize heat transfer between nuclear fuel tiles and into a fuel coolant and bring the fuel coolant in direct contact with the nuclear fuel tiles. Nuclear fuel tiles can be shaped with discontinuous nuclear fuel lateral facets and have fuel coolant passages formed therein to provide direct contact between the fuel coolant and the nuclear fuel tiles. In U-Mod, tube liners with low hydrogen diffusivity retain hydrogen in the low-temperature solid- phase moderator even at elevated temperatures and the high-temperature thermal insulator insulates the solid-phase moderator from the nuclear fuel tiles.

    NUCLEAR POWER PLANT AND METHOD OF OPERATING THE SAME
    7.
    发明申请
    NUCLEAR POWER PLANT AND METHOD OF OPERATING THE SAME 审中-公开
    核电厂及其运行方法

    公开(公告)号：WO02080190B1

    公开(公告)日：2003-12-31

    申请号：PCT/IB0200979

    申请日：2002-03-28

    Applicant: PEBBLE BED MODULAR REACTOR PTY ,  KRIEL WILLEM ADRIAAN ODENDAAL

    Inventor： KRIEL WILLEM ADRIAAN ODENDAAL

    IPC: F02C1/05 ,  F02C1/10 ,  F02C9/18 ,  F02C9/24 ,  G21C1/07 ,  G21C15/253 ,  G21D1/02 ,  G21D3/08 ,  G21D5/06 ,  F02C9/16

    CPC classification number: F02C1/10 ,  F02C1/05 ,  F02C9/18 ,  F02C9/24 ,  F05D2210/12 ,  F05D2270/061 ,  F05D2270/112 ,  F05D2270/303 ,  G21C1/07 ,  G21C15/253 ,  G21D1/02 ,  G21D3/08 ,  G21D5/06 ,  Y02E30/33 ,  Y02E30/36

    Abstract: A nuclear power plant makes use of a high temperature gas cooled reactor. Under certain circumstances, the possibility exists that the temperature of gas entering various components of the plant exceeds desired operating parameters. To prevent this, the temperature of the gas entering at least one of the components of the power plant is monitored and, should the temperature of the gas exceed a predetermined temperature, cooler gas is mixed with the gas whose temperature had exceeded the predetermined temperature, to reduce the temperature of the gas. Accordingly, the plant includes at least one coolant feedline leading from a source of coolant gas, typically at a point in the power generation circuit where the temperature of the gas is relatively low, to a position upstream of the component. A coolant valve is mounted in the coolant feedline to regulate the flow of coolant gas therethrough.

    Abstract translation: 核电厂利用高温气冷堆。 在某些情况下，可能存在进入设备各种部件的气体的温度超过所需的操作参数。 为了防止这种情况，监测进入发电厂的至少一个部件的气体的温度，并且如果气体的温度超过预定温度，则将较冷的气体与温度超过预定温度的气体混合， 以降低气体的温度。 因此，该设备包括至少一个冷却剂供给线，其通常来自冷却剂气体源，通常在气体的温度相对较低的发电电路中的一点到组件上游的位置。 冷却剂阀安装在冷却剂供给管线中以调节冷却剂气体通过其中的流动。

    NUCLEAR REACTOR
    8.
    发明申请
    NUCLEAR REACTOR 审中-公开
    核反应堆

    公开(公告)号：WO02021537A2

    公开(公告)日：2002-03-14

    申请号：PCT/IB2001/001606

    申请日：2001-09-03

    IPC: G21C1/07 ,  B01F5/02 ,  B01F15/06 ,  G21C15/18 ,  G21D1/00 ,  G21D5/06 ,  G21C15/00

    CPC classification number: G21C15/182 ,  B01F5/0256 ,  B01F15/06 ,  Y02E30/40 ,  Y02P70/32

    Abstract: The invention provides a mixing device which defines a mixing chamber having two inlets leading into the mixing chamber at angularly spaced positions. The device further includes an outlet leading from the mixing chamber. The mixing chamber is typically generally spherical in shape with the outlet being positioned diametrically opposite one of the inlets. The invention further provides a nuclear power plant having a core conditioning system including a pair of heat exchangers, namely a recuperator and a water cooled heat exchanger. The recuperator has a hot side and a cold side and the plant includes a mixing device positioned upstream of the inlet on the hot side of the recuperator to permit the temperature of gas being fed to the recuperator to be restricted to a predetermined maximum by mixing hot and cold gas in the mixing device prior to feeding the mixture into the hot side of the recuperator.

    Abstract translation: 混合装置技术领域本发明涉及一种混合装置，该混合装置包括混合室，该混合室具有：相对于彼此成90°布置的两个入口端口和出口孔。 混合室通常基本上是球形的，并且其出口孔与入口端口之一径向相对。 本发明还涉及一种核电站，其核心调节系统包括一对热交换器，即 一个换热器和一个用水冷却的热交换器。 同流换热器具有一热侧和冷侧，并且所述植物包括位于同流换热器的热端的入口的上游的混合装置，以使提供给同流换热器的气体的温度限制为预定的最大 在将混合物供应到回流换热器的热侧之前，在混合装置中混合热气和冷气。

    ROBUST NUCLEAR PROPULSION FISSION REACTOR WITH TRI-PITCH PATTERNED CORE AND DRUM ABSORBERS
    10.
    发明申请
    ROBUST NUCLEAR PROPULSION FISSION REACTOR WITH TRI-PITCH PATTERNED CORE AND DRUM ABSORBERS 审中-公开

    公开(公告)号：WO2021071599A2

    公开(公告)日：2021-04-15

    申请号：PCT/US2020/047722

    申请日：2020-08-25

    Applicant: BWXT ADVANCED TECHNOLOGIES LLC

    Inventor： GRAMLICH, Craig D. ,  FISHER, Benjamin D. ,  RUSSELL II, William E.

    IPC: G21D5/06 ,  G21D5/02 ,  B64G1/40

    Abstract: Nuclear propulsion fission reactor structure has an active core region including fuel element structures, a reflector with rotatable neutron absorber structures (such as drum absorbers), and a core former conformal mating the outer surface of the fuel element structures to the reflector. Fuel element structures are arranged abutting nearest neighbor fuel element structures in a tri-pitch design. Cladding bodies defining coolant channels are inserted into and joined to upper and lower core plates to from a continuous structure that is a first portion of the containment structure. The nuclear propulsion fission reactor structure can be incorporated into a nuclear thermal propulsion engine for propulsion applications, such as space propulsion.

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