公开(公告)号：WO2018031148A1

公开(公告)日：2018-02-15

申请号：PCT/US2017/040833

申请日：2017-07-06

Applicant: TRANSATOMIC POWER CORPORATION

Inventor： ROBERTSON, Sean ,  MASSIE, Mark ,  SMITH, Stephen ,  DEWAN, Leslie C.

IPC: G21C1/22 ,  G21C7/26

CPC classification number: G21C1/22 ,  G21C7/26 ,  Y02E30/39

Abstract: A molten salt reactor design employs continuous fission product removal and core geometry modification to achieve high fuel utilization

Abstract translation: 熔盐反应堆设计采用连续裂变产物去除和核心几何形状修改以实现高燃料利用率。

公开(公告)号：WO2019107733A1

公开(公告)日：2019-06-06

申请号：PCT/KR2018/011878

申请日：2018-10-10

Applicant: 한국수력원자력 주식회사

Inventor： 김성민 ,  고성욱 ,  김영애 ,  박동환 ,  류의승 ,  유성창 ,  김용배

IPC: G21C7/26 ,  G21C5/12 ,  C22C19/07

Abstract: 본 발명은 특히 불필요한 출력감발을 조절봉 소재 변경으로 억제시킴과 동시에 코발트-60을 생산할 수 있는 핵연료 절감 방법에 관한 것으로서, 제1 내지 제7 조절봉 군으로 이루어지는 7개의 조절봉 군을 각각 핵연료집합체의 서로 다른 부위에 인입 또는 인출 가능하게 설치하되, 제7 조절봉 군은 제7 조절봉 군을 이루는 조절봉들의 반응도 값을 나머지 조절봉 군을 이루는 조절봉들의 반응도 값 보다 작게 제작하는 제1단계; 및, 제1 내지 제7 조절봉 군을 모두 핵연료집합체에서 인출시킬 때, 제7 조절봉 군을 가장 마지막으로 인출시키는 제2단계;로 이루어짐으로써, 제7 조절봉 군의 인출 과정에서 액체영역제어계통(LZC, Liquid Zone Control system)의 수위가 자동으로 조절봉 인입조건 수위 이상으로 상승됨으로 인한 제7 조절봉 군의 자동 재인입 현상을 방지하여, 제7 조절봉 군의 자동 재인입으로 인한 불필요한 연소도 억제 현상을 해소시킴으로써, 연소도를 상승시켜 소요되는 핵연료를 대폭 절감시킬 수 있는 중수로의 핵연료 절감 방법을 제공하고자 한다.

公开(公告)号：WO2023278299A1

公开(公告)日：2023-01-05

申请号：PCT/US2022/035082

申请日：2022-06-27

Applicant: BK CLEAN ENERGY LLC

Inventor： BREGMAN, Harry L. ,  KUSHNIR, Gregory F.

IPC: G21C1/22 ,  G21C3/24 ,  G21C3/54 ,  G21C7/02 ,  G21C1/03 ,  G21C15/04 ,  G21C21/00 ,  G21C5/02 ,  G21C7/26 ,  G21C7/30 ,  G21D1/00 ,  G21F5/065

Abstract: A closed-vessel molten salt reactor (cvMSR) is described herein. A cvMSR may comprise a suspended container, such as a metallic container, within a trench surrounded by a concrete enclosure and a concrete cover having a number of channels. The suspended container may be hollow and a solution of fissile materials and salt materials may be provided within the suspended container. The solution may be capable of undergoing a chain reaction nuclear fission process once a threshold temperature is reached. Heat generated by the solution may heat a fluid surrounding the suspended container. The heated fluid may be transported, through the number of channels of the concrete cover, to an external location where the heated fluid may be used in distributing heat and/or electricity generation.

公开(公告)号：WO2020016566A1

公开(公告)日：2020-01-23

申请号：PCT/GB2019/051979

申请日：2019-07-16

Applicant: THE UNIVERSITY OF LIVERPOOL

Inventor： MERK, Bruno ,  LITSKEVICH, Dzianis ,  ATKINSON, Seddon

IPC: G21C1/07 ,  G21C7/26 ,  G21C3/326 ,  G21C5/12 ,  G21C11/06

Abstract: A high temperature reactor (HTR) (100) is described. The HTR (100) comprises a first set of fuel columns (110), including a first fuel column 110A, comprising fissile fuel (120). The HTR (100) comprises a second set of burnable poison rods (130), including a first burnable poison rod (130A). The HTR (100) comprises a moveable moderator (140). The HTR (100) comprises a passageway (150) arranged to receive the moderator (140) therein. The HTR (100) comprises a first reflector (160) arranged to surround the first set of fuel columns (110), the second set of burnable poison rods (130) and the passageway (150). The HTR 100 is arrangeable in a first configuration C1, wherein the moderator (140) is received in the passageway (150) in a first position P1 thereby providing a first moderation M1 of neutrons produced by the fissile fuel (120). The HTR (100) is arrangeable in a second configuration C2, wherein the moderator (140) is received in the passageway (150) in a second position P2 thereby providing a second moderation M2 of the neutrons produced by the fissile fuel (120), whereby a change in criticality, in use, due to depletion of the fissile fuel and/or of the burnable poison rods (130) is attenuated.

公开(公告)号：WO2022040116A2

公开(公告)日：2022-02-24

申请号：PCT/US2021/046201

申请日：2021-08-17

Applicant: ULTRA SAFE NUCLEAR CORPORATION

Inventor： CHALEFF, Ethan

IPC: G21C7/14 ,  G21C7/12 ,  G21C7/28 ,  G21D3/16 ,  G21C7/26 ,  G21C7/04 ,  G21D5/02 ,  G21C9/02 ,  G21D3/04

Abstract: A nuclear reactor system includes a nuclear reactor core disposed in a pressure vessel. Nuclear reactor system further includes control drums disposed longitudinally within the pressure vessel and laterally surrounding fuel elements and at least one moderator element of the nuclear reactor core to control reactivity. Each of the control drums includes a reflector material and an absorber material. Nuclear reactor system further includes a control drum controller with a counterweight to impart a reverse torque on the control drum. Control drum controller includes a driven pulley coupled to the counterweight, a tension member coupled to the driven pulley to rotatably control the driven pulley and apply torque to the driven pulley, and an actuator to apply a tension force to the tension member. The actuator counteracts the reverse torque with the applied tension force, and the tension member applies the torque in response to the tension force.

公开(公告)号：WO2021191407A1

公开(公告)日：2021-09-30

申请号：PCT/EP2021/057873

申请日：2021-03-26

Applicant: ROLLS-ROYCE PLC

Inventor： ROBERTSON, Daniel ,  LONGSTAFFE, Brett

IPC: G21C7/26 ,  G21C3/326 ,  G21C9/033 ,  G21C7/06 ,  E30

Abstract: A reactor control system for a nuclear reactor, the reactor control system comprising: one or more hollow tubes comprising neutron absorbing material, each having a first end and a second end; a pump connected to the first end of each hollow tube and operable to control the amount of a first fluid within the hollow tube, the first fluid comprising a neutron moderator, wherein: the pump is controlled based on a level of reactivity in the nuclear reactor, and the second end of the hollow tubes is in fluid communication with a second fluid, the second fluid having a neutron moderating capacity lower than 10% of that of the first fluid.

公开(公告)号：WO2022035871A2

公开(公告)日：2022-02-17

申请号：PCT/US2021/045401

申请日：2021-08-10

Applicant: RADIANT INDUSTRIES, INCORPORATED

Inventor： BERNAUER, Doug ,  ELIASSEN, Armand

IPC: G21C19/08 ,  G21C19/10 ,  G21C13/028 ,  G21C1/12 ,  G21C13/02 ,  G21C19/065 ,  G21C19/18 ,  G21C19/20 ,  G21C19/205 ,  G21C5/10 ,  G21C7/26 ,  G21F5/008

Abstract: A modular nuclear reactor system includes a lift-out, replaceable nuclear reactor core configured for replacement as a singular unit during a single lift-out event, such as rather than lifting and replacing individual fuel assemblies and/ or fuel elements. The system includes a reactor vessel and a power generation system configured to convert thermal energy in a high temperature working fluid received from the reactor vessel into electrical energy. The reactor vessel includes: a vessel inlet and an adjacent vessel outlet arranged near a bottom on the vessel; a vessel receptacle configured to receive a unified core assembly; locating datums in the base of the vessel receptacle and configured to constrain a core assembly in multiple degrees of freedom; and an interstitial zone surrounding the vessel receptacle and housing a set of control or moderating drums.

公开(公告)号：WO2021076781A2

公开(公告)日：2021-04-22

申请号：PCT/US2020/055819

申请日：2020-10-15

Applicant: NUSCALE POWER, LLC ,  BOTHA, Frederick ,  KEPPEN, Jackson ,  GALIMOV, Azat Yumadilovich ,  MIRSKY, Steven M.

Inventor： BOTHA, Frederick ,  KEPPEN, Jackson ,  GALIMOV, Azat Yumadilovich ,  MIRSKY, Steven M.

IPC: G21C1/22 ,  G21C3/04 ,  G21C3/24 ,  G21C5/02 ,  G21C5/12 ,  G21C7/26 ,  G21C7/02 ,  G21C11/06 ,  G21C15/04 ,  G21C15/08 ,  G21C15/257 ,  G21C11/088 ,  G21C3/041

Abstract: Nuclear reactor systems and associated devices and methods are described herein. A representative nuclear reactor system includes a reactor vessel having a barrier separating a core region from a shield region. A plurality of fuel rods containing a liquid nuclear fuel are positioned in the core region. A liquid moderator material is also positioned in the core region at least partially around the fuel rods. A plurality of heat exchangers can be positioned in the shield region, and a plurality of heat pipes can extend through the barrier. The moderator material is positioned to transfer heat received from the liquid nuclear fuel to the heat pipes, and the heat pipes are positioned to transfer heat received from the moderator material to the heat exchangers. The heat exchangers can transport the heat out of the system for use in one or more processes, such as generating electricity.

公开(公告)号：WO2004025666A3

公开(公告)日：2004-11-25

申请号：PCT/US0324078

申请日：2003-07-30

Applicant: UNIV CALIFORNIA

Inventor： PETERSON OTIS G

IPC: G21C20060101 ,  G21C1/07 ,  G21C1/24 ,  G21C3/56 ,  G21C7/00 ,  G21C7/02 ,  G21C7/26 ,  G21C7/32 ,  G21C19/28

CPC classification number: G21C1/07 ,  G21C1/24 ,  G21C7/02 ,  G21C7/26 ,  G21C7/32 ,  G21Y2002/207 ,  G21Y2002/301 ,  G21Y2004/101 ,  G21Y2004/402 ,  Y02E30/36 ,  Y02E30/39

Abstract: The present invention includes a nuclear fission reactor apparatus (10) and a method for operation of same, comprising: a core (12) comprising a fissile metal hydride; an atmosphere (20) comprising hydrogen or hydrogen isotopes to which the core (12) is exposed; a non-fissile hydrogen absorbing and desorbing material (24); a means for controlling the absorption and desorption of the non-fissile hydrogen absorbing and desorbing material (24), and a means for extracting the energy produced in the core (12).

Abstract translation: 本发明包括核裂变反应堆装置（10）及其操作方法，包括：包含可裂变金属氢化物的核心（12）; 包含氢或氢同位素的气氛（20），核（12）暴露于其中; 非易裂变氢吸收和解吸材料（24）; 用于控制非易裂变氢吸收和解吸材料（24）的吸收和解吸的手段，以及用于提取在芯（12）中产生的能量的装置。