公开(公告)号：US20240304343A1

公开(公告)日：2024-09-12

申请号：US18254672

申请日：2021-11-25

Applicant: UNITED KINGDOM ATOMIC ENERGY AUTHORITY

Inventor： Francisco Jose Calvo PLAZA ,  Jorge Fradera FERNANDEZ ,  Sergio Sadaba CIPRIAIN ,  Samuel HA

IPC: G21B1/13 ,  G21C3/07 ,  G21C3/08 ,  G21C3/60 ,  G21C21/02

CPC classification number: G21B1/13 ,  G21C3/07 ,  G21C3/08 ,  G21C3/60 ,  G21C21/02

Abstract: There is provided an encapsulated pebble, comprising: a fuel core; and a cage encapsulating the fuel core, wherein the cage comprises at least one gas transport channel therethrough. There is also provided a method of making the encapsulated pebble, a breeding blanket module for a fusion reactor, a fusion reactor and methods and uses thereof.

公开(公告)号：US20230335305A9

公开(公告)日：2023-10-19

申请号：US17237666

申请日：2021-04-22

Applicant: THORIUM POWER, INC.

Inventor： Sergey Mikhailovich Bashkirtsev ,  Valentin Fedorovich Kuznetsov ,  Valery Vladimirovich Kevrolev ,  Alexey Glebovich Morozov ,  Michael H. Montgomery

IPC: G21C21/10 ,  G21C3/06 ,  G21C3/322 ,  G21C3/60 ,  G21C3/08 ,  G21C21/02

CPC classification number: G21C21/10 ,  G21C3/06 ,  G21C3/322 ,  G21C3/60 ,  G21C3/08 ,  G21C21/02 ,  Y10T29/49826 ,  G21C3/326

Abstract: Nuclear fuel assemblies include fuel elements that are sintered or cast into billets and co-extruded into a spiral, multi-lobed shape. The fuel kernel may be a metal alloy of metal fuel material and a metal-non-fuel material, or ceramic fuel in a metal non-fuel matrix. The fuel elements may use more highly enriched fissile material while maintaining safe operating temperatures. Such fuel elements according to one or more embodiments may provide more power at a safer, lower temperature than possible with conventional uranium oxide fuel rods. The fuel assembly may also include a plurality of conventional UO2 fuel rods, which may help the fuel assembly to conform to the space requirements of conventional nuclear reactors.

公开(公告)号：US20230282379A9

公开(公告)日：2023-09-07

申请号：US17237683

申请日：2021-04-22

Applicant: THORIUM POWER, INC.

Inventor： Sergey Mikhailovich Bashkirtsev ,  Valentin Fedorovich Kuznetsov ,  Valery Vladimirovich Kevrolev ,  Alexey Glebovich Morozov ,  Michael H. Montgomery

IPC: G21C21/10 ,  G21C3/06 ,  G21C3/322 ,  G21C3/60 ,  G21C3/08 ,  G21C21/02

CPC classification number: G21C21/10 ,  G21C3/06 ,  G21C3/322 ,  G21C3/60 ,  G21C3/08 ,  G21C21/02 ,  Y10T29/49826 ,  G21C3/326

Abstract: Nuclear fuel assemblies include fuel elements that are sintered or cast into billets and co-extruded into a spiral, multi-lobed shape. The fuel kernel may be a metal alloy of metal fuel material and a metal-non-fuel material, or ceramic fuel in a metal non-fuel matrix. The fuel elements may use more highly enriched fissile material while maintaining safe operating temperatures. Such fuel elements according to one or more embodiments may provide more power at a safer, lower temperature than possible with conventional uranium oxide fuel rods. The fuel assembly may also include a plurality of conventional UO2 fuel rods, which may help the fuel assembly to conform to the space requirements of conventional nuclear reactors.

公开(公告)号：US11742096B2

公开(公告)日：2023-08-29

申请号：US16327005

申请日：2017-08-08

Applicant: PAUL SCHERRER INSTITUT

Inventor： Manuel Alexandre Pouchon

IPC: G21C3/58 ,  G21C3/60 ,  B33Y10/00 ,  B28B1/00 ,  G21C3/62 ,  C04B38/06 ,  C04B35/624 ,  C04B35/01 ,  C04B35/571 ,  B22F10/10 ,  B33Y70/10 ,  B22F3/105 ,  B28B11/24 ,  C04B111/00 ,  B22F12/00 ,  B22F12/37 ,  B22F12/53 ,  B22F12/55 ,  B33Y80/00

CPC classification number: G21C3/58 ,  B22F3/105 ,  B22F10/10 ,  B28B1/001 ,  B28B11/243 ,  B33Y10/00 ,  B33Y70/10 ,  C04B35/01 ,  C04B35/571 ,  C04B35/624 ,  C04B38/06 ,  G21C3/60 ,  G21C3/62 ,  B22F12/22 ,  B22F12/37 ,  B22F12/53 ,  B22F12/55 ,  B22F2003/1054 ,  B33Y80/00 ,  C04B2111/00181 ,  C04B2235/6026 ,  C04B2235/665 ,  C04B2235/667 ,  Y02E30/30 ,  C04B38/06 ,  C04B35/01

Abstract: A green body for a 3D ceramic and/or metallic body is produced by providing a metal or a mixture of metals and/or a metalloid and/or a non-metal or mixtures thereof in form of at least one aqueous solutions, such as a metal nitrate solution; if more than one aqueous solutions are provided, they differ in composition and/or isotope concentration. One aqueous metal solution is mixed with a gelation fluid at a first temperature to suppress an internal gelation of the feed solution mixture prior to its ejection. The feed solution mixture is ejected by inkjet printing to the green body under construction. The ejected feed solution is heated mixture on the green body to a second temperature to fix it on the green body under construction. Several process steps are repeated according to a 3D production control model until a desired form of the green body is attained.

公开(公告)号：US20180261346A1

公开(公告)日：2018-09-13

申请号：US15954534

申请日：2018-04-16

Applicant: FRAMATOME

Inventor： Bertrand Stepnik ,  Michel Grasse ,  Gilles Bourdat ,  Christel Coullomb ,  Christophe Moyroud

IPC: G21C21/02 ,  G21C3/02 ,  B22F3/10 ,  B22F5/00 ,  G21C3/60 ,  G21C3/07 ,  B22F9/04 ,  G21G4/08

CPC classification number: G21C21/02 ,  B22F3/10 ,  B22F5/00 ,  B22F9/04 ,  G21C3/02 ,  G21C3/07 ,  G21C3/60 ,  G21G4/08 ,  Y02E30/38 ,  Y10T29/49828

Abstract: A method of producing a nuclear fuel product is provided. The method includes the steps of providing a core comprising aluminium and low-enriched uranium; and sealing said core in a cladding. The core has a low-enriched uranium loading strictly higher than 3.0 gU/cm3 and includes less than 10 wt % of aluminium phase and/or aluminium compounds other than UAl2 phase, than UAl3 phase, and than UAl4 phase. A corresponding nuclear fuel product is also provided.

公开(公告)号：US09406410B2

公开(公告)日：2016-08-02

申请号：US13513849

申请日：2010-12-01

Applicant: Alain Ravenet

Inventor： Alain Ravenet

IPC: G21C3/00 ,  G21C21/02 ,  G21C3/06 ,  G21C3/18 ,  G21C3/04 ,  G21C3/07 ,  G21C3/60 ,  G21C3/62

CPC classification number: G21C21/02 ,  G21C3/06 ,  G21C3/07 ,  G21C3/18 ,  G21C3/60 ,  G21C3/623 ,  G21C2003/048 ,  Y02E30/40

Abstract: A new type of nuclear fuel rods. The rod cladding has an elliptical section transverse to its longitudinal direction and each nuclear fuel pellet has a truncated elliptical shape along the major axis of the cladding, the minor axis of the pellets is the same as the length of the minor axis of the cladding except for the assembly clearance j, the difference in length between the major axis of the cladding and the truncated major axis of the pellets is very much larger than the assembly clearance j. Also disclosed is a method of manufacturing nuclear fuel rods and stacking them in the cladding so as to form a nuclear fuel rod.

Abstract translation: 一种新型的核燃料棒。 棒包层具有横向于其纵向方向的椭圆截面，并且每个核燃料颗粒沿着包层的长轴具有截头椭圆形形状，丸粒的短轴与包层的短轴的长度相同，除了 对于组装间隙j，包层的长轴和颗粒的截头长轴之间的长度差异远大于组装间隙j。 还公开了一种制造核燃料棒并将其堆叠在包层中以形成核燃料棒的方法。

公开(公告)号：US20150049850A1

公开(公告)日：2015-02-19

申请号：US14367721

申请日：2012-12-19

Applicant: NIHON NATURE CELL CO., LTD.

Inventor： Sadao Hattori ,  Osao Sumita

IPC: G21C1/02 ,  G21C7/28 ,  G21C15/00 ,  G21C3/60

CPC classification number: G21C1/02 ,  G21C1/026 ,  G21C3/60 ,  G21C7/28 ,  G21C15/00 ,  G21D1/00 ,  Y02E30/34 ,  Y02E30/35 ,  Y02E30/38 ,  Y02E30/39

Abstract: [Problem] To build a secure and high-efficiency power generation system while achieving a further reduction in the size of the entire system. [Solution] A compact nuclear power generation system is provided with a reactor (3) comprising a core (2) which uses metal fuel containing either or both of uranium-235/238 and plutonium-239, a reactor vessel (1) which houses the core (2), metal sodium which is filled into the reactor vessel (1) and heated by the core (2), and a neutron reflector (9) which maintains the effective multiplication factor of neutrons emitted from the core (2) at approximately one or more to bring the core into a critical state. A main heat exchanger (15) is installed outside the reactor (3). The metal sodium heated by the reactor (3) is supplied to the main heat exchanger (15), and supercritical carbon dioxide that is subjected to heat exchange with the heated metal sodium circulates therethrough. The supercritical carbon dioxide heated by the main heat exchanger (15) drives a turbine (20), and a power generator (21) is operated by the drive of the turbine (20).

Abstract translation: [问题]建立安全高效的发电系统，同时实现整个系统的进一步缩小。 [解决方案]紧凑的核动力发电系统设置有反应器（3），反应器（3）包括使用含有铀-235 / 238和钚-239两者之一或两者的金属燃料的核心（2），容纳 核心（2），填充到反应器容器（1）中并被核心（2）加热的金属钠和中子反射器（9），其保持从核心（2）发射的中子的有效倍增因子 大约一个或多个使核心进入关键状态。 主反应器（3）的外侧设有主热交换器（15）。 将由反应器（3）加热的金属钠供给到主热交换器（15），与被加热的金属钠进行热交换的超临界二氧化碳循环通过。 由主热交换器（15）加热的超临界二氧化碳驱动涡轮（20），发电机（21）由涡轮机（20）的驱动来操作。

公开(公告)号：US20130329849A1

公开(公告)日：2013-12-12

申请号：US13878318

申请日：2011-10-04

Applicant: Fabrice Mazaudier

Inventor： Fabrice Mazaudier

IPC: G21C3/07

CPC classification number: G21C3/07 ,  G21C3/60 ,  Y02E30/38

Abstract: A nuclear-fuel pin including a linear element made of a metal nuclear-fuel material consisting of uranium and/or plutonium, and cladding including Fe and Cr or an alloy including at least both of said elements, comprises a main shell provided around the linear nuclear-fuel element, said shell including threads or fibers made of SiC. A method for producing a nuclear-fuel pin is also provided.

Abstract translation: 包括由铀和/或钚组成的金属核燃料材料制成的线性元件和包含Fe和Cr的包层或至少包括所述元件中的至少两者的合金的核燃料销包括围绕线性 核燃料元件，所述外壳包括由SiC制成的螺纹或纤维。 还提供了一种制造核燃料销的方法。

公开(公告)号：US08571167B2

公开(公告)日：2013-10-29

申请号：US12696851

申请日：2010-01-29

Applicant: Leon C. Walters

Inventor： Leon C. Walters

IPC: G21C3/00

CPC classification number: G21C15/00 ,  G21C1/07 ,  G21C3/02 ,  G21C3/07 ,  G21C3/60 ,  G21C19/44 ,  G21C21/04 ,  Y02E30/34 ,  Y02E30/38 ,  Y02W30/882

Abstract: A metal particulate fuel system is described. The metal fuel system may include particulate metal fuel for use in nuclear reactors. The particulate metal fuel may include a plurality of particles of at least one enriched alloy where the particles are compacted into a fuel column. The metal particulate fuel system may also include a cladding and/or a gas-filled plenum.

Abstract translation: 描述了金属颗粒燃料系统。 金属燃料系统可以包括用于核反应堆的颗粒状金属燃料。 颗粒状金属燃料可以包括至少一种富集合金的多个颗粒，其中颗粒被压实成燃料柱。 金属颗粒燃料系统还可以包括包层和/或填充气体的增压室。

公开(公告)号：US20130266112A1

公开(公告)日：2013-10-10

申请号：US13885579

申请日：2010-11-15

Applicant: Sermet Kuran ,  Mustapha Boubcher ,  Cathy Cottrell

Inventor： Sermet Kuran ,  Mustapha Boubcher ,  Cathy Cottrell

IPC: G21C3/42

CPC classification number: G21C3/42 ,  G21C1/20 ,  G21C3/326 ,  G21C3/58 ,  G21C3/60 ,  G21C3/62 ,  Y02E30/38

Abstract: Nuclear fuels for nuclear reactors are described, and include nuclear fuels having a first fuel component of recycled uranium, and a second fuel component of depleted uranium blended with the first fuel component, wherein the blended first and second fuel components have a fissile content of less than 1.2 wt % of 235U. Also described are nuclear fuels having a first fuel component of recycled uranium, and a second fuel component of natural uranium blended with the first fuel component, wherein the blended first and second fuel components have a fissile content of less than 1.2 wt % of 235U.

Abstract translation: 描述了用于核反应堆的核燃料，并且包括具有再循环铀的第一燃料组分的核燃料和与第一燃料组分混合的贫化铀的第二燃料组分，其中混合的第一和第二燃料组分的裂变含量少 超过1.2％的235U。 还描述了具有再循环铀的第一燃料组分的核燃料和与第一燃料组分混合的天然铀的第二燃料组分，其中混合的第一和第二燃料组分的裂变含量小于235U的1.2重量％。