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1.发明申请ADVANCED FIRST CORE FUEL ASSEMBLY CONFIGURATION AND METHOD OF IMPLEMENTING THE SAME 有权高级第一核心燃料组件配置及其实施方法公开(公告)号：US20120294406A1
公开(公告)日：2012-11-22
申请号：US13451050
申请日：2012-04-19
IPC分类号： G21C19/00
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。
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2.发明申请NUCLEAR FUEL BUNDLE CONTAINING THORIUM AND NUCLEAR REACTOR COMPRISING SAME 有权包含THORIUM的核燃料组件和包含相同的核反应堆公开(公告)号：US20130202076A1
公开(公告)日：2013-08-08
申请号：US13819999
申请日：2010-09-03
申请人： Mustapha Boubcher , Sermet Kuran , Cathy Cottrell , Robert R. Bodner , Holly Bruce Hamilton , Bronwyn H. Hyland , Benoit Arsenault
发明人： Mustapha Boubcher , Sermet Kuran , Cathy Cottrell , Robert R. Bodner , Holly Bruce Hamilton , Bronwyn H. Hyland , Benoit Arsenault
CPC分类号： G21C3/326 , G21C3/328 , G21C3/58 , G21C2003/3265 , Y02E30/38
摘要： Fuel bundles for a nuclear reactor are disclosed, and in some embodiments include a first fuel element including thorium dioxide; a second fuel element including uranium having a first fissile content; and a third fuel element including uranium having a second fissile content different from the first fissile content. Nuclear reactors using such fuel bundles are also disclosed, including pressurized heavy water nuclear reactors. The uranium having the different fissile contents can include combinations of natural uranium, depleted uranium, recycled uranium, slightly enriched uranium, and low enriched uranium.
摘要翻译： 公开了用于核反应堆的燃料束，并且在一些实施例中包括包括二氧化钍的第一燃料元件; 包括具有第一裂变内容物的铀的第二燃料元件; 以及第三燃料元件，其包括具有不同于第一裂变内容的第二裂变内容物的铀。 还公开了使用这种燃料束的核反应堆，包括加压重水核反应堆。 具有不同裂变内容的铀可包括天然铀，贫化铀，回收铀，略浓缩铀和低浓铀的组合。
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3.发明授权Light-water reactor fuel assembly (alternatives), a light-water reactor, and a fuel element of fuel assembly 有权轻水反应堆燃料组件（替代品），轻水反应堆和燃料组件的燃料元件公开(公告)号：US09355747B2
公开(公告)日：2016-05-31
申请号：US13139677
申请日：2008-12-25
CPC分类号： G21C3/02 , G21C1/024 , G21C3/326 , G21C3/3305 , G21C3/60 , G21C5/20 , G21C2003/3265 , Y02E30/32 , Y02E30/38
摘要： A 17×17 jacketless fuel assembly for a PWR-type light-water reactor uses thorium as the fuel. The fuel assembly has a square shape in the plan view, a seed region, a blanket region that encircles it, an upper nozzle, and a lower nozzle. The fuel elements of the seed region re arranged in the rows and columns of a square coordinate grid and have a four-lobed profile that forms spiral spacer ribs along the length of a fuel element. The blanket region contains a frame structure within which a bundle of fuel elements made from thorium with the addition of enriched uranium is positioned. The blanket region fuel elements are arranged in the two or three rows and columns of a square coordinate grid.
摘要翻译： 用于PWR型轻水反应堆的17×17无夹套燃料组件使用钍作为燃料。 燃料组件在平面图中具有正方形形状，种子区域，环绕它的毯子区域，上部喷嘴和下部喷嘴。 种子区域的燃料元件重新排列成正方形坐标网格的行和列，并且具有沿着燃料元件的长度形成螺旋间隔肋的四叶形轮廓。 覆盖区域包含框架结构，在该框架结构中，定位由钍制成的燃料元件组，并添加浓缩铀。 橡皮布区域燃料元件布置在正方形坐标网格的两行或三行和列中。
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公开(公告)号：US20160111174A1
公开(公告)日：2016-04-21
申请号：US14956469
申请日：2015-12-02
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. The advanced initial core fuel configuration includes 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。 先进的初始核心燃料配置包括多个燃料组件，其具有不同的铀235的平均浓度，并且将燃料组件布置成初始的核心配置，其结构至少根据空间反应性分布来模拟已知的平衡重新加载循环核心。 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。
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5.发明授权Advanced first core fuel assembly configuration and method of implementing the same 有权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
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。
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公开(公告)号：US20140185735A1
公开(公告)日：2014-07-03
申请号：US14132358
申请日：2013-12-18
申请人： Hitachi, Ltd.
IPC分类号： G21C3/32
摘要： In a fuel assembly, a plurality of fuel rods are arranged in an array of 10 rows and 10 columns in the cross section of the fuel assembly. A flow resistance member is disposed in a central portion in the cross section at upper end portions of partial length fuel rods which are a part of the fuel rods. In the flow resistance member, resistance members are each disposed between ferrules arranged in an array of 6 rows and 6 columns in the diagonal direction of the flow resistance member. Resistance members are each disposed between the ferrules in a peripheral portion of the flow resistance member. By disposing the resistance members, the pressure loss in an inner region in the cross section of the fuel assembly is increased, and the flow rate of a gas-liquid two-phase flow in an outer region surrounding the inner region is increased.
摘要翻译： 在燃料组件中，多个燃料棒在燃料组件的横截面上以10行10列排列。 在作为燃料棒的一部分的部分长度的燃料棒的上端部的横截面的中央部设置有流阻部件。 在流阻部件中，电阻部件分别配置在流阻部件的对角方向上排列成6列，6列的列的套圈之间。 电阻构件分别设置在流阻部件的周边部分中的套圈之间。 通过设置阻力构件，燃料组件的横截面内部区域的压力损失增加，并且在内部区域周围的外部区域中气液两相流的流量增加。
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公开(公告)号：US09984779B2
公开(公告)日：2018-05-29
申请号：US14956469
申请日：2015-12-02
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. The advanced initial core fuel configuration includes 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.
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公开(公告)号：US09799414B2
公开(公告)日：2017-10-24
申请号：US13819999
申请日：2010-09-03
申请人： Mustapha Boubcher , Sermet Kuran , Cathy Cottrell , Robert R. Bodner , Holly Bruce Hamilton , Bronwyn H. Hyland , Benoit Arsenault
发明人： Mustapha Boubcher , Sermet Kuran , Cathy Cottrell , Robert R. Bodner , Holly Bruce Hamilton , Bronwyn H. Hyland , Benoit Arsenault
CPC分类号： G21C3/326 , G21C3/328 , G21C3/58 , G21C2003/3265 , Y02E30/38
摘要： Fuel bundles for a nuclear reactor are disclosed, and in some embodiments include a first fuel element including thorium dioxide; a second fuel element including uranium having a first fissile content; and a third fuel element including uranium having a second fissile content different from the first fissile content. Nuclear reactors using such fuel bundles are also disclosed, including pressurized heavy water nuclear reactors. The uranium having the different fissile contents can include combinations of natural uranium, depleted uranium, recycled uranium, slightly enriched uranium, and low enriched uranium.
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公开(公告)号：US09646724B2
公开(公告)日：2017-05-09
申请号：US14132358
申请日：2013-12-18
申请人： Hitachi, Ltd.
摘要： In a fuel assembly, a plurality of fuel rods are arranged in an array of 10 rows and 10 columns in the cross section of the fuel assembly. A flow resistance member is disposed in a central portion in the cross section at upper end portions of partial length fuel rods which are a part of the fuel rods. In the flow resistance member, resistance members are each disposed between ferrules arranged in an array of 6 rows and 6 columns in the diagonal direction of the flow resistance member. Resistance members are each disposed between the ferrules in a peripheral portion of the flow resistance member. By disposing the resistance members, the pressure loss in an inner region in the cross section of the fuel assembly is increased, and the flow rate of a gas-liquid two-phase flow in an outer region surrounding the inner region is increased.
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公开(公告)号：US20130322591A1
公开(公告)日：2013-12-05
申请号：US13695792
申请日：2011-05-11
发明人： Sergey Mikhailovich Bashkirtsev , Valentin Fedorovich Kuznetsov , Valery Vladimirovich Kevrolev , Alexey Glebovich Morozov , Michael H. Montgomery
CPC分类号： G21C3/08 , G21C3/06 , G21C3/322 , G21C3/326 , G21C3/60 , G21C3/64 , G21C21/02 , G21C21/10 , G21C2003/3265 , Y02E30/38 , Y10T29/49826
摘要： 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.
摘要翻译： 核燃料组件包括燃烧元件，其被烧结或铸造成坯料并且共挤出成螺旋状，多叶形状。 燃料核可以是金属燃料材料和金属非燃料材料的金属合金，或金属非燃料基质中的陶瓷燃料。 燃料元件可以使用更高度富集的裂变材料，同时保持安全的工作温度。 根据一个或多个实施例的这种燃料元件可以在比常规氧化铀燃料棒更可靠的较低温度下提供更多的功率。 燃料组件还可以包括多个常规的UO2燃料棒，其可以帮助燃料组件符合常规核反应堆的空间要求。
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