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1. 发明授权

US09293228B2 Advanced first core fuel assembly configuration and method of implementing the same 有权
标题翻译：先进的核心燃料组件配置及其实现方法
公开(公告)号：US09293228B2
公开(公告)日：2016-03-22
申请号：US13451050
申请日：2012-04-19
申请人： David L. Stucker , Robert J. Fetterman , Jeffrey L. Bradfute
发明人： David L. Stucker , Robert J. Fetterman , Jeffrey L. Bradfute
IPC分类号： G21C3/326 , G21C3/334 , G21C5/00 , G21C19/20
CPC分类号： G21C19/205 , G21C1/086 , G21C3/326 , G21C5/00 , G21C2003/3265 , G21Y2002/201 , G21Y2004/403 , Y02E30/38
摘要： An advanced initial core fuel configuration is for improving the fuel management efficiency and thus economics for a nuclear reactor. A method of implementing such an initial core involves providing a plurality of fuel assemblies having different average enrichments of uranium 235 and arranging the fuel assemblies in an initial core configuration structured to emulate a known equilibrium reload cycle core at least in terms of spatial reactivity distribution. The resulting average enrichment within the initial core ranges from below about 1.0 percent weight of uranium 235 to about 5.0 percent weight of uranium 235. An advanced lattice design is also disclosed.
摘要翻译：先进的初始核燃料配置是提高燃料管理效率，从而提高核反应堆的经济性。实现这种初始核心的方法包括提供具有不同的铀235的平均富集度的多个燃料组件，并且将燃料组件布置成至少根据空间反应性分布构造成模拟已知的平衡重载循环核心的初始核心配置。初始核中的所得平均浓度范围从铀235的约1.0重量％至铀235的约5.0重量％。还公开了先进的晶格设计。

2. 发明申请

US20100054389A1 MIXED OXIDE FUEL ASSEMBLY 审中-公开
标题翻译：混合氧化物燃料组件
公开(公告)号：US20100054389A1
公开(公告)日：2010-03-04
申请号：US12198287
申请日：2008-08-26
申请人： Robert J. Fetterman
发明人： Robert J. Fetterman
IPC分类号： G21C3/17 , G21C3/328
CPC分类号： G21C3/326 , G21C3/17 , G21C3/3265 , G21C3/623 , Y02E30/32 , Y02E30/38
摘要： A pressurized water nuclear reactor fuel assembly designed to burn mixed oxide fuel that employs a fully annular fuel pellet stack in the fuel rods, and radial enrichment zoning within the assembly such that the intra-assembly rod power distribution is relatively smooth regardless of the characteristics of the adjacent assemblies.
摘要翻译：一种加压水核反应堆燃料组件，设计用于燃烧混合氧化物燃料，其在燃料棒中采用完全环形的燃料芯片堆叠，以及在组件内径向富集分区，使得组装杆功率分布相对平滑，而不管相邻的组件。

3. 发明授权

US07412021B2 Advanced gray rod control assembly 有权
标题翻译：高级灰棒控制组件
公开(公告)号：US07412021B2
公开(公告)日：2008-08-12
申请号：US11189472
申请日：2005-07-26
申请人： Robert J. Fetterman , James A. Sparrow
发明人： Robert J. Fetterman , James A. Sparrow
IPC分类号： G21C7/00
CPC分类号： G21C7/10 , G21Y2002/104 , G21Y2002/201 , G21Y2002/206 , G21Y2002/304 , G21Y2004/30 , Y02E30/39
摘要： An advanced gray rod control assembly (GRCA) is for a nuclear reactor. The reactor has a plurality of fuel assemblies each including numerous elongated fuel rods supported in an organized array by substantially transverse support grids, and a plurality of guide thimbles disposed through the support grids and along the fuel rods. The GRCA includes a spider assembly structured to provide controlled insertion of gray rod assemblies within the thimbles of the fuel assembly, thereby controlling the rate of power produced by the reactor. Each gray rod assembly includes an elongated tubular member, a first end plug, a second end plug, a substantially pure silver neutron-absorber disposed within the tubular member, and a support tube surrounding the neutron-absorber within the tubular member to resist silver-swelling. Delta-power of the reactor is improved by minimizing the exposed surface area of the absorber and distributing it among all of the rods of the GRCA.
摘要翻译：先进的灰棒控制组件（GRCA）用于核反应堆。反应器具有多个燃料组件，每个燃料组件包括通过基本上横向的支撑网格以有组织的阵列支撑的许多细长的燃料棒，以及穿过支撑格栅并沿着燃料棒设置的多个导向套管。 GRCA包括构造成在燃料组件的套管内提供控制插入灰棒组件的蜘蛛组件，从而控制由反应器产生的功率速率。每个灰色杆组件包括细长的管状构件，第一端塞，第二端塞，设置在管状构件内的基本上纯的中子吸收器，以及围绕管状构件内的中子吸收体的支撑管，肿胀。通过最小化吸收器的暴露表面积并将其分布在GRCA的所有棒中来改善反应器的三角形功率。

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