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1. 发明专利

AU2021221888A1 FUEL ELEMENT WITH MULTI-SMEAR DENSITY FUEL 未知
公开(公告)号：AU2021221888A1
公开(公告)日：2021-09-23
申请号：AU2021221888
申请日：2021-08-26
申请人： TERRAPOWER LLC
发明人： CHEATHAM III JESSE R , LATTA RYAN N , MILLER SAMUEL J
IPC分类号： G21C1/02 , G21C3/04 , G21C3/16 , G21C3/42 , G21C7/00 , G21C21/08 , G21D3/00
摘要： An apparatus comprising: a fuel element for a fuel assembly having a tubular interior volume and storing a fissionable composition within at least a portion of the tubular interior volume, 5 the fissionable composition in thermal transfer contact with an interior surface of the fuel element and defined by a smear density profile that selectively varies with position along a longitudinal axis of the fuel element and includes at least one region of locally increased smear density positioned to correspond to at least one region of locally decreased neutron flux.

2. 发明专利

AU2016361156A1 Fuel element with multi-smear density fuel 未知
公开(公告)号：AU2016361156A1
公开(公告)日：2018-01-18
申请号：AU2016361156
申请日：2016-08-24
申请人： TERRAPOWER LLC
发明人： CHEATHAM III JESSE R , LATTA RYAN N , MILLER SAMUEL J
IPC分类号： G21C1/02 , G21C3/04 , G21C3/16 , G21C3/42 , G21C7/00 , G21C21/08 , G21D3/00
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 (i.e.: smear density) 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 bum-up location associated with conventional systems reduces the peak bum-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.

3. 发明专利

CA3078796A1 ANNULAR METAL NUCLEAR FUEL AND METHODS OF MANUFACTURING THE SAME 未知
公开(公告)号：CA3078796A1
公开(公告)日：2019-06-27
申请号：CA3078796
申请日：2018-12-21
申请人： TERRAPOWER LLC
发明人： CHOI JOON HYUNG , HACKETT MICAH J , HEJZLAR PAVEL , LATTA RYAN N , VOLLMER JAMES M
IPC分类号： G21C3/60
摘要： Annular metal fuel and fuel rods are described that have improved performance over uranium oxide fuel rods. The annular metal fuel can be made out of porous metal nuclear fuel and will generate more power and operate at a much lower temperature than uranium oxide fuel. The annular metal fuel rods may be used in traveling wave reactors and other fast reactors. Pressurized water reactors may also be retrofit with annular metal fuel rods to improve reactor performance.

4. 发明专利

AU2016361156B2 Fuel element with multi-smear density fuel 未知
公开(公告)号：AU2016361156B2
公开(公告)日：2021-07-01
申请号：AU2016361156
申请日：2016-08-24
申请人： TERRAPOWER LLC
发明人： CHEATHAM III JESSE R , LATTA RYAN N , MILLER SAMUEL J
IPC分类号： G21C1/02 , G21C3/04 , G21C3/16 , G21C3/42 , G21C7/00 , G21C21/08 , G21D3/00
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 (i.e.: smear density) 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 bum-up location associated with conventional systems reduces the peak bum-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.

5. 发明专利

RU2721222C2 Тепловыделяющий элемент с многозначной эффективной плотностью топлива 未知
公开(公告)号：RU2721222C2
公开(公告)日：2020-05-18
申请号：RU2018108148
申请日：2016-08-24
申请人： TERRAPOWER LLC
发明人： CHEATHAM III JESSE R , LATTA RYAN N , MILLER SAMUEL J
IPC分类号： G21C1/02
摘要： Изобретениеотноситсяк тепловыделяющемуэлементуядерногореактора. Соотношениеплощадиделимогоядерноготопливав поперечномсечениитрубчатоготепловыделяющегоэлемента, перпендикулярногопродольнойоси, иобщейплощадивнутреннегообъемав поперечномсечениитрубчатоготепловыделяющегоэлемента, изменяетсяс положениемвдольпродольнойоси. Соотношениеможетизменятьсяс положениемвдольпродольнойосимеждуминимумом 0,30 имаксимумом 1,0. Увеличениесоотношениявышеи нижепиковогоместавыгорания, связанногос традиционнымисистемами, уменьшаетпиковоевыгораниеи сглаживаети сдвигаетраспределениевыгорания, котороепредпочтительноявляетсягауссовым. Продольноеизменениеможетбытьреализованов тепловыделяющихсборкахс использованиемтепловыделяющихэлементов, такихкактаблетки, стержнииликольца, илитопливав формеметаллическойгубки. Техническимрезультатомявляетсяповышениеэффективностииспользованиятоплива. 5 н. и 18 з.п. ф-лы, 27 ил.

6. 发明专利

CA3070433A1 FUEL-CLADDING CHEMICAL INTERACTION RESISTANT NUCLEAR FUEL ELEMENTS AND METHODS FOR MANUFACTURING THE SAME 未知
公开(公告)号：CA3070433A1
公开(公告)日：2019-01-24
申请号：CA3070433
申请日：2018-07-19
申请人： TERRAPOWER LLC
发明人： HACKETT MICAH J , HELMREICH GRANT , LATTA RYAN N , POVIRK GARY , SCHLOSS PHILIP M , VOLLMER JAMES M
IPC分类号： G21C3/20 , G21C21/02
摘要： This disclosure describes fuel-cladding chemical interaction (FCCI) resistant nuclear fuel elements and their manufacturing techniques. The nuclear fuel elements include two or more layers of different materials (i.e., adjacent barriers are of different base materials) provided on a steel cladding to reduce the effects of FCCI between the cladding and the nuclear material. Depending on the embodiment, a layer may be the structural element (i.e., a layer thick enough to provide more than 50% of the strength of the overall component consisting of the cladding and the barriers) or may be more appropriately described as a liner or coating that is applied in some fashion to a surface of the structural component (e.g., to the cladding, or to a structural form of the fuel).

7. 发明专利

CA2996413A1 FUEL ELEMENT WITH MULTI-SMEAR DENSITY FUEL 未知
公开(公告)号：CA2996413A1
公开(公告)日：2017-06-01
申请号：CA2996413
申请日：2016-08-24
申请人： TERRAPOWER LLC
发明人： CHEATHAM JESSE R III , LATTA RYAN N , MILLER SAMUEL J
IPC分类号： G21C1/02 , G21C3/04 , G21C3/16 , G21C3/42 , G21C7/00 , G21C21/08 , G21D3/00
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 (i.e.: smear density) 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 1Ø Increasing the ratio above and below the peak bum-up location associated with conventional systems reduces the peak bum-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.

8. 发明申请

WO2017091256A3 FUEL ELEMENT WITH MULTI-SMEAR DENSITY FUEL 审中-公开
标题翻译：具有多种密度燃料的燃料元件
公开(公告)号：WO2017091256A3
公开(公告)日：2017-07-13
申请号：PCT/US2016048392
申请日：2016-08-24
申请人： TERRAPOWER LLC
发明人： CHEATHAM III JESSE R , LATTA RYAN N , MILLER SAMUEL J
IPC分类号： G21C1/02 , G21C3/04 , G21C3/16 , G21C3/42 , G21C7/00 , G21C21/08 , G21D3/00
CPC分类号： G21C3/04 , G21C1/026 , G21C3/16 , G21C3/42 , G21C7/005 , G21C21/08 , G21C2003/045 , G21C2003/047 , G21D3/001 , Y02E30/34 , Y02E30/39
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 (i.e.: smear density) 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 bum-up location associated with conventional systems reduces the peak bum-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.
摘要翻译：燃料元件在垂直于纵向轴线的管状燃料元件的横截面中具有可裂变核燃料的面积与管状燃料元件的横截面中的内部体积的总面积之比（即：涂抹密度）随着沿纵轴的位置而变化。该比例可以随着沿纵轴的位置在最小值0.30和最大值1.0之间变化。增加高于和低于与传统系统相关联的峰值燃烧位置的比率减少峰值燃烧并变平并且改变燃烧分布，其优选为高斯。纵向变化可以在燃料组件中使用燃料主体（例如球团，棒或环形物）或金属海绵形式的燃料并且有意义地提高燃料利用效率来实施。

9. 发明公开

EP2939243A4 NUCLEAR FUEL ELEMENT 有权转让
标题翻译： KERNBRENNSTOFFELEMENT
公开(公告)号：EP2939243A4
公开(公告)日：2016-12-07
申请号：EP13868378
申请日：2013-12-23
申请人： TERRAPOWER LLC
发明人： POVIRK GARY , VOLLMER JAMES M , LATTA RYAN N , HELMREICH GRANT , SCHLOSS PHILIP M
IPC分类号： G21C3/06 , G21C3/04 , G21C3/07 , G21C3/18 , G21C3/20 , G21C21/02 , G21C21/04
CPC分类号： G21C3/07 , G21C3/18 , G21C3/20 , G21C21/02 , G21C21/04 , G21C2003/047 , Y02E30/40
摘要： Disclosed embodiments include fuel assemblies, methods of making a fuel element, and methods of using a fuel element.
摘要翻译：公开的实施例包括燃料组件，制造燃料元件的方法和使用燃料元件的方法。

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