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公开(公告)号：US11990249B2
公开(公告)日：2024-05-21
申请号：US16518890
申请日：2019-07-22
申请人： TerraPower, LLC
CPC分类号： G21C3/04 , G21C1/026 , G21C3/16 , G21C7/005 , G21C21/08 , G21D3/001 , G21C3/045 , G21C3/047 , G21C3/42 , Y02E30/30
摘要： A fuel element has a ratio of area of fissionable nuclear fuel in a cross-section of the tubular fuel element perpendicular to the longitudinal axis to total area of the interior volume in the cross-section of the tubular fuel element that varies with position along the longitudinal axis. The ratio can vary with position along the longitudinal axis between a minimum of 0.30 and a maximum of 1.0. Increasing the ratio above and below the peak burn-up location associated with conventional systems reduces the peak burn-up and flattens and shifts the burn-up distribution, which is preferably Gaussian. The longitudinal variation can be implemented in fuel assemblies using fuel bodies, such as pellets, rods or annuli, or fuel in the form of metal sponge and meaningfully increases efficiency of fuel utilization.
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公开(公告)号：US20230147092A1
公开(公告)日：2023-05-11
申请号：US18150822
申请日：2023-01-06
申请人： Austin Lo
发明人： Austin Lo
摘要： A nuclear fuel cell includes a net neutron-producing material, a neutron-consuming material, and a neutron-moderating material. Upon exposure of the net-producing material, the neutron-moderating material, and the neutron-consuming material to a neutron source, a ratio of the net neutron-producing material to (i) the neutron-consuming material and (ii) the neutron-moderating material is operable to convert neutrons into charged particles without producing net neutrons.
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3.发明授权Nuclear fuel rod for fast reactors including metallic fuel slug coated with protective coating layer and fabrication method thereof 有权用于快堆的核燃料棒包括涂有保护涂层的金属燃料棒及其制造方法公开(公告)号：US09589680B2
公开(公告)日：2017-03-07
申请号：US14079740
申请日：2013-11-14
发明人： Chan Bock Lee , Jun Hwan Kim , Jong-Hyuk Baek , Jin-Sik Cheon , ByoungOon Lee , Ki Hwan Kim , Sung-Ho Kim , Junehyung Kim , Seok-Jin Oh , Young-Mo Ko , Yoon-Myeong Woo , Seong Woo Yang
CPC分类号： G21C3/20 , G21C1/02 , G21C3/04 , G21C3/60 , G21C21/02 , G21C2003/047 , G21Y2002/30 , Y02E30/40
摘要： A nuclear fuel rod for fast reactors includes a metallic fuel slug coated with a protective coating layer. In embodiments, a nuclear fuel rod for fast reactors includes a uranium and zirconium fuel slug having a single protective coating which is an oxide layer having a thickness in the range of 0.5 μm to 100 μm, and the protective coating layer may be configured to (i) prevent interdiffusion between the fuel slug and a cladding tube during fast reactor operation, and (ii) prevent a cladding tube from thinning during fission operation in a fast reactor.
摘要翻译： 用于快堆的核燃料棒包括涂有保护涂层的金属燃料棒。 在实施方案中，用于快堆的核燃料棒包括具有单一保护涂层的铀和锆燃料块，其是厚度在0.5μm至100μm范围内的氧化物层，并且保护涂层可以被配置为 i）在快速反应堆运行期间，防止燃料块与包层管之间的相互扩散，（ii）防止在快速反应堆中裂变作业期间包层管变薄。
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4.发明申请METHOD OF PREPARING NUCLEAR FUEL PELLET INCLUDING THERMAL CONDUCTIVE METAL AND NUCLEAR FUEL PELLET PREPARED THEREBY 审中-公开制备包含导热金属和核燃料颗粒的核燃料颗粒的方法公开(公告)号：US20160372215A1
公开(公告)日：2016-12-22
申请号：US14591498
申请日：2015-01-07
发明人： Dong-Joo KIM , Young Woo RHEE , Keon-Sik KIM , Jong-Hun KIM , JangSoo OH , Jae-Ho YANG , Yang-Hyun KOO
CPC分类号： G21C3/04 , G21C3/623 , G21C21/02 , G21C2003/045 , Y02E30/38
摘要： A method of a nuclear fuel pellet including a thermal conductive metal and a nuclear fuel pellet prepared thereby. The method includes preparing an oxide nuclear fuel granule having about 30%-45% theoretical density, mixing the fuel granule with thermal conductive metal powder, compacting the fuel granule with which the thermal conductive metal powder is mixed to prepare a green pellet, and sintering the green pellet. In the method, the sintering may be performed under a reducing gas atmosphere that is the same as the commercial pellet preparing process. Thus, compatibility compared to existing commercial preparing processes may be superior. Also, since a liquefied oxide formation process and a reducing process are omitted, the distribution uniformity of the metal material within the pellet may be superior. Therefore, the nuclear fuel pellet in which the metal network and fine microstructure are uniformly distributed within the pellet may be prepared.
摘要翻译： 一种核燃料颗粒的方法，其包括由其制备的导热金属和核燃料颗粒。 该方法包括制备具有约30％-45％理论密度的氧化物核燃料颗粒，将燃料颗粒与导热金属粉末混合，压实混合导热金属粉末的燃料颗粒以制备生坯，并烧结 绿色颗粒。 在该方法中，可以在与商业颗粒制备方法相同的还原气体气氛下进行烧结。 因此，与现有的商业制备方法相比的兼容性可能是优越的。 此外，由于省略了液化氧化物形成工艺和还原工艺，所以颗粒内的金属材料的分布均匀性可以是优异的。 因此，可以制备其中金属网络和精细微结构均匀分布在颗粒内的核燃料颗粒。
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公开(公告)号：US20150243378A1
公开(公告)日：2015-08-27
申请号：US14682759
申请日：2015-04-09
发明人： Leon C. WALTERS
CPC分类号： G21C3/38 , B22D19/00 , B22D21/022 , B22D21/025 , B22D27/003 , G21C3/04 , G21C3/06 , G21C3/60 , G21C21/02 , Y02E30/38
摘要： A sheathed, annular metal fuel system is described. A metal fuel pin system is described that includes an annular metal nuclear fuel alloy. A sheath may surround the metal nuclear fuel alloy, and a cladding may surround the sheath. A gas plenum may also be present. Mold arrangements and methods of fabrication of the sheathed, annular metal fuel are also described.
摘要翻译： 描述了一种护套的环形金属燃料系统。 描述了包括环形金属核燃料合金的金属燃料销系统。 护套可围绕金属核燃料合金，并且包层可围绕护套。 也可能存在气体增压室。 还描述了包覆的环形金属燃料的模具布置和制造方法。
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公开(公告)号：US20140185734A1
公开(公告)日：2014-07-03
申请号：US13794604
申请日：2013-03-11
IPC分类号： G21C3/32
CPC分类号： G21C3/04 , G21C3/06 , G21C3/16 , G21C3/32 , G21C3/324 , G21C3/334 , G21C21/10 , G21C2003/047 , Y02E30/40
摘要： Disclosed embodiments include fuel ducts, fuel assemblies, methods of making fuel ducts, methods of making a fuel assembly, and methods of using a fuel assembly.
摘要翻译： 公开的实施例包括燃料管道，燃料组件，制造燃料管道的方法，制造燃料组件的方法以及使用燃料组件的方法。
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公开(公告)号：US20120020446A1
公开(公告)日：2012-01-26
申请号：US12932083
申请日：2011-02-15
IPC分类号： G21C7/00
摘要： Exemplary embodiments provide automated nuclear fission reactors and methods for their operation. Exemplary embodiments and aspects include, without limitation, re-use of nuclear fission fuel, alternate fuels and fuel geometries, modular fuel cores, fast fluid cooling, variable burn-up, programmable nuclear thermostats, fast flux irradiation, temperature-driven surface area/volume ratio neutron absorption, low coolant temperature cores, refueling, and the like.
摘要翻译： 示例性实施例提供了自动化核裂变反应器及其操作方法。 示例性实施例和方面包括但不限于重新使用核裂变燃料，替代燃料和燃料几何形状，模块化燃料芯，快速流体冷却，可变燃烧，可编程核恒温器，快速通量照射，温度驱动表面积/ 体积比中子吸收，低冷却剂温度核心，加油等。
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公开(公告)号：US20100290578A1
公开(公告)日：2010-11-18
申请号：US12778326
申请日：2010-05-12
申请人： J. Paul Farrell , James R. Powell
发明人： J. Paul Farrell , James R. Powell
摘要： A nuclear fission reactor device including a core having an array of fissile material and which is capable of being transported to and from the place of operation using conventional transportation vehicles. In a first embodiment, the fissile material is a uranium hydride enriched 15%-to-20% with U-235. In a second embodiment, the fissile material is a uranium oxide enriched to 18% to 20% with U-235.
摘要翻译： 一种核裂变反应堆装置，其包括具有易裂变材料阵列的芯体，并且能够使用常规运输车辆将其运送到和从操作地点运输。 在第一个实施方案中，裂变材料是具有U-235的富含15％至20％的氢化铀。 在第二个实施方案中，裂变材料是用U-235富集至18％至20％的铀氧化物。
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9.发明授权Segmented waste rods for handling nuclear waste and methods of using and fabricating the same 有权用于处理核废料的分段废料棒及其使用和制造方法公开(公告)号：US07781637B2
公开(公告)日：2010-08-24
申请号：US12219904
申请日：2008-07-30
IPC分类号： G21F1/00
摘要： Example embodiments and methods may provide segmented waste rods capable of containing and disposing of waste generated from spent nuclear fuel, including elements left over from fuel that has been harvested for desired isotopes produced in the fuel. Example methods may provide methods for forming and using example embodiment segmented waste rods.
摘要翻译： 示例性实施例和方法可以提供能够容纳和处理由废核燃料产生的废物的分段废料棒，包括从已经在燃料中产生的期望同位素收获的燃料中留下的元素。 示例性方法可以提供用于形成和使用示例性实施例的分段废料棒的方法。
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公开(公告)号：US20080123796A1
公开(公告)日：2008-05-29
申请号：US11605848
申请日：2006-11-28
IPC分类号： G21C19/02
摘要： Exemplary embodiments provide automated nuclear fission reactors and methods for their operation. Exemplary embodiments and aspects include, without limitation, re-use of nuclear fission fuel, alternate fuels and fuel geometries, modular fuel cores, fast fluid cooling, variable burn-up, programmable nuclear thermostats, fast flux irradiation, temperature-driven surface area/volume ratio neutron absorption, low coolant temperature cores, refueling, and the like.
摘要翻译： 示例性实施例提供了自动化核裂变反应器及其操作方法。 示例性实施例和方面包括但不限于重新使用核裂变燃料，替代燃料和燃料几何形状，模块化燃料芯，快速流体冷却，可变燃烧，可编程核恒温器，快速通量照射，温度驱动表面积/ 体积比中子吸收，低冷却剂温度核心，加油等。
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