EA201201481A1 - Топливная сборка - Google Patents

Топливная сборка

Info

Publication number
EA201201481A1
EA201201481A1 EA201201481A EA201201481A EA201201481A1 EA 201201481 A1 EA201201481 A1 EA 201201481A1 EA 201201481 A EA201201481 A EA 201201481A EA 201201481 A EA201201481 A EA 201201481A EA 201201481 A1 EA201201481 A1 EA 201201481A1
Authority
EA
Eurasian Patent Office
Prior art keywords
fuel
metal
fuel assembly
rods
fuel cells
Prior art date
Application number
EA201201481A
Other languages
English (en)
Other versions
EA023017B1 (ru
Inventor
Сергей Михайлович БАШКИРЦЕВ
Валентин Федорович КУЗНЕЦОВ
Валерий Владимирович КЕВРОЛЕВ
Алексей Глебович МОРОЗОВ
Майкл Х. Монтгомери
Original Assignee
Ториум Пауэр, Инк.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=44513305&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EA201201481(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Ториум Пауэр, Инк. filed Critical Ториум Пауэр, Инк.
Publication of EA201201481A1 publication Critical patent/EA201201481A1/ru
Publication of EA023017B1 publication Critical patent/EA023017B1/ru

Links

Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C21/00—Apparatus or processes specially adapted to the manufacture of reactors or parts thereof
    • G21C21/02—Manufacture of fuel elements or breeder elements contained in non-active casings
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C21/00—Apparatus or processes specially adapted to the manufacture of reactors or parts thereof
    • G21C21/02—Manufacture of fuel elements or breeder elements contained in non-active casings
    • G21C21/10—Manufacture of fuel elements or breeder elements contained in non-active casings by extrusion, drawing, or stretching by rolling, e.g. "picture frame" technique
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C3/00—Reactor fuel elements and their assemblies; Selection of substances for use as reactor fuel elements
    • G21C3/02—Fuel elements
    • G21C3/04—Constructional details
    • G21C3/06—Casings; Jackets
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C3/00—Reactor fuel elements and their assemblies; Selection of substances for use as reactor fuel elements
    • G21C3/02—Fuel elements
    • G21C3/04—Constructional details
    • G21C3/06—Casings; Jackets
    • G21C3/08—Casings; Jackets provided with external means to promote heat-transfer, e.g. fins, baffles
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C3/00—Reactor fuel elements and their assemblies; Selection of substances for use as reactor fuel elements
    • G21C3/30—Assemblies of a number of fuel elements in the form of a rigid unit
    • G21C3/32—Bundles of parallel pin-, rod-, or tube-shaped fuel elements
    • G21C3/322—Means to influence the coolant flow through or around the bundles
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C3/00—Reactor fuel elements and their assemblies; Selection of substances for use as reactor fuel elements
    • G21C3/30—Assemblies of a number of fuel elements in the form of a rigid unit
    • G21C3/32—Bundles of parallel pin-, rod-, or tube-shaped fuel elements
    • G21C3/326—Bundles of parallel pin-, rod-, or tube-shaped fuel elements comprising fuel elements of different composition; comprising, in addition to the fuel elements, other pin-, rod-, or tube-shaped elements, e.g. control rods, grid support rods, fertile rods, poison rods or dummy rods
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C3/00—Reactor fuel elements and their assemblies; Selection of substances for use as reactor fuel elements
    • G21C3/30—Assemblies of a number of fuel elements in the form of a rigid unit
    • G21C3/32—Bundles of parallel pin-, rod-, or tube-shaped fuel elements
    • G21C3/326—Bundles of parallel pin-, rod-, or tube-shaped fuel elements comprising fuel elements of different composition; comprising, in addition to the fuel elements, other pin-, rod-, or tube-shaped elements, e.g. control rods, grid support rods, fertile rods, poison rods or dummy rods
    • G21C3/3262—Enrichment distribution in zones
    • G21C3/3265—Radial distribution
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C3/00—Reactor fuel elements and their assemblies; Selection of substances for use as reactor fuel elements
    • G21C3/42—Selection of substances for use as reactor fuel
    • G21C3/58—Solid reactor fuel Pellets made of fissile material
    • G21C3/60—Metallic fuel; Intermetallic dispersions
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C3/00—Reactor fuel elements and their assemblies; Selection of substances for use as reactor fuel elements
    • G21C3/42—Selection of substances for use as reactor fuel
    • G21C3/58—Solid reactor fuel Pellets made of fissile material
    • G21C3/62—Ceramic fuel
    • G21C3/64—Ceramic dispersion fuel, e.g. cermet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
    • B22F5/10—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of articles with cavities or holes, not otherwise provided for in the preceding subgroups
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C21/00—Apparatus or processes specially adapted to the manufacture of reactors or parts thereof
    • G21C21/02—Manufacture of fuel elements or breeder elements contained in non-active casings
    • G21C21/16—Manufacture of fuel elements or breeder elements contained in non-active casings by casting or dipping techniques
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Monitoring And Testing Of Nuclear Reactors (AREA)
  • Powder Metallurgy (AREA)

Abstract

Топливные сборки ядерного реактора включают в себя топливные элементы, которые спекаются или отливаются для образования заготовок и подвергаются совместной экструзии для получения спиральной многолопастной формы. Топливный сердечник может содержать металлический сплав из металлического топливного материала и металлического нетопливного материала или керамическое топливо в металлической матрице из нетопливного материала. Топливные элементы могут использовать более обогащённый делящийся материал и в то же время обеспечить поддержание безопасных рабочих температур. Такие топливные элементы, выполненные согласно одному или нескольким вариантам осуществления данного изобретения, могут обеспечить более высокую установленную мощность при более безопасных, более низких температурах, чем возможно в случае использования традиционных топливных стержней из оксида урана. Топливная сборка может также включать в себя множество традиционных топливных стержней из диоксида урана, что может помочь топливной сборке удовлетворить требования относительно имеющегося пространства для размещения тепловых сборок внутри традиционных ядерных реакторов.
EA201201481A 2010-05-11 2011-05-11 Топливная сборка EA023017B1 (ru)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US33346710P 2010-05-11 2010-05-11
US39349910P 2010-10-15 2010-10-15
US201161444990P 2011-02-21 2011-02-21
PCT/US2011/036034 WO2011143293A1 (en) 2010-05-11 2011-05-11 Fuel assembly

Publications (2)

Publication Number Publication Date
EA201201481A1 true EA201201481A1 (ru) 2013-03-29
EA023017B1 EA023017B1 (ru) 2016-04-29

Family

ID=44513305

Family Applications (1)

Application Number Title Priority Date Filing Date
EA201201481A EA023017B1 (ru) 2010-05-11 2011-05-11 Топливная сборка

Country Status (11)

Country Link
US (5) US10037823B2 (ru)
EP (2) EP2569776B1 (ru)
JP (3) JP6001530B2 (ru)
KR (3) KR101775023B1 (ru)
CN (2) CN102947890B (ru)
AU (1) AU2011250906B2 (ru)
CA (2) CA2985909C (ru)
EA (1) EA023017B1 (ru)
ES (1) ES2647155T3 (ru)
HU (2) HUE035511T2 (ru)
WO (2) WO2011143172A1 (ru)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2008365658B2 (en) 2008-12-25 2015-05-21 Thorium Power Inc. Fuel assembly for a light-water nuclear reactor (embodiments), light-water nuclear reactor and fuel element of the fuel assembly
WO2011143172A1 (en) 2010-05-11 2011-11-17 Thorium Power, Inc. Fuel assembly with metal fuel alloy kernel and method of manufacturing thereof
US10170207B2 (en) * 2013-05-10 2019-01-01 Thorium Power, Inc. Fuel assembly
US10192644B2 (en) 2010-05-11 2019-01-29 Lightbridge Corporation Fuel assembly
CA2881784C (en) * 2012-06-13 2023-03-07 Atomic Energy Of Canada Limited/Energie Atomique Du Canada Limitee Fuel channel assembly and fuel bundle for a nuclear reactor
CN103106929B (zh) * 2013-02-04 2016-03-02 中国核动力研究设计院 超临界水堆的改进型环形燃料元件及其构成的燃料组件
GB201318470D0 (en) * 2013-02-25 2013-12-04 Scott Ian R A practical molten salt fission reactor
RU2551432C1 (ru) * 2013-11-19 2015-05-27 Открытое Акционерное Общество "Акмэ-Инжиниринг" Оболочка для тепловыделяющего элемента, тепловыделяющий элемент и тепловыделяющая сборка
EA201991956A1 (ru) * 2014-09-16 2020-01-22 Лайтбридж Корпорейшн Тепловыделяющая сборка
JP2016156729A (ja) * 2015-02-25 2016-09-01 株式会社 シー・アール・ワイ 原子炉
CN104681105B (zh) * 2015-03-04 2017-03-01 东南大学 一种双头螺旋菱形支撑板正六边形核燃料组件
JP6878251B2 (ja) * 2017-02-09 2021-05-26 株式会社東芝 軽水炉用燃料集合体、軽水炉炉心設計方法および軽水炉用燃料集合体設計方法
RO133588B1 (ro) * 2017-06-23 2024-03-29 Candu Energy Inc. Aparat şi metodă pentru localizarea unui tub calandria
JP2020527722A (ja) * 2017-07-19 2020-09-10 テラパワー， エルエルシー 燃料−クラッド化学的相互作用耐性核燃料要素およびその製造方法
CN108213418A (zh) * 2017-12-21 2018-06-29 中核北方核燃料元件有限公司 一种铀铝合金靶件芯坯制备方法
WO2019126790A1 (en) * 2017-12-22 2019-06-27 Terrapower, Llc Annular metal nuclear fuel and methods of manufacturing the same
EP3503119B1 (en) * 2017-12-22 2023-06-07 Westinghouse Electric Sweden AB Nuclear fuel rod comprising high density fuel units
EP3573074B1 (en) * 2018-05-25 2020-11-04 Thor Energy AS An auxiliary device for a fuel assembly, a fuel assembly, and a method of operating a pressurized water reactor
CN110606742B (zh) * 2019-10-24 2022-02-22 中国核动力研究设计院 核电用TiO2-Gd2O3可燃毒物陶瓷材料及其制备方法
CA3176389A1 (en) * 2020-03-23 2021-09-30 The Research Foundation For The State University Of New York Neutron absorbing embedded hydride shield
KR102463008B1 (ko) * 2020-06-11 2022-11-02 한국수력원자력 주식회사 부하 추종 운전용 노심
RU2755261C1 (ru) * 2021-03-10 2021-09-14 Акционерное общество "Обнинское научно-производственное предприятие "Технология" им. А.Г.Ромашина" Атомная электростанция с керамическим реактором на быстрых нейтронах
CN113299409A (zh) * 2021-04-30 2021-08-24 西安交通大学 一种螺旋十字燃料元件小型氟盐冷却高温堆堆芯
CN113299408A (zh) * 2021-04-30 2021-08-24 西安交通大学 一种模块化小型氟盐冷却高温堆系统
WO2022240432A1 (en) * 2021-05-11 2022-11-17 Clean Core Thorium Energy Llc Thorium-based fuel design for pressurized heavy water reactors
JP2024517332A (ja) 2021-05-11 2024-04-19 クリーン コア トリウム エナジー エルエルシー 加圧重水炉のトリウムベース燃料設計
CN113470841B (zh) * 2021-06-21 2022-11-11 清华大学 具有扭绞结构的螺旋多叶型核燃料元件及其制造方法
CN113470840B (zh) * 2021-06-21 2023-01-17 清华大学 螺旋多叶型核燃料元件的制造方法
CN114005554A (zh) * 2021-10-22 2022-02-01 西安交通大学 一种基于螺旋十字燃料元件的氟盐冷却高温堆堆芯
CN114188045A (zh) * 2021-10-27 2022-03-15 中广核研究院有限公司 板式燃料组件及反应堆堆芯

Family Cites Families (478)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2780517A (en) 1943-04-27 1957-02-05 Beppino J Fontana Separation of uranium from foreign substances
US2887357A (en) 1944-11-03 1959-05-19 Glenn T Seaborg Dry fluorine separation method
US2894827A (en) 1949-10-10 1959-07-14 Earl K Hyde Uranium separation process
GB853511A (en) 1949-02-22 1960-11-09 Atomic Energy Authority Uk Improvements in or relating to heat transfer systems
US2898185A (en) 1949-09-14 1959-08-04 George E Boyd Adsorption method for separating thorium values from uranium values
US2879216A (en) 1954-02-05 1959-03-24 Jr Henry Hurwitz Neutronic reactor
US2987458A (en) 1954-12-14 1961-06-06 Calvin R Breden Twisted ribbon fuel element
LU34099A1 (ru) 1955-02-16 1900-01-01
BE559120A (ru) 1956-07-12
BE553708A (ru) 1956-07-18
BE562944A (ru) * 1956-12-11
GB887713A (en) 1957-03-11 1962-01-24 Babcock & Wilcox Ltd Improvements in nuclear fuel sheaths or cans and in nuclear reactors of the kind including fuel enclosed in cans
US3197376A (en) 1957-04-22 1965-07-27 North American Aviation Inc Epithermal thorium power-breeder nuclear reactor
FR1189249A (fr) 1957-11-14 1959-10-01 Réacteur nucléaire à liquide bouillant
DE1074168B (de) 1958-03-17 1960-01-28 Westinghouse Electric Corporation, East Pittsburgh, Pa. (V. St. A.) Spaltstoffelemcnt für heterogene Kernreaktoren, insbesondere für Druckwasserreaktoren
US3070527A (en) 1958-04-29 1962-12-25 Walter J Hurford Composite fuel element
US2977297A (en) 1958-09-02 1961-03-28 Ersel A Evans Reactor fuel assembly
GB909637A (en) 1958-12-10 1962-10-31 Rolls Royce Improvements in or relating to nuclear reactors
GB889775A (en) 1959-01-14 1962-02-21 Gen Electric Co Ltd Improvements in and relating to thorium disilicide
GB904140A (en) * 1959-02-13 1962-08-22 Parsons C A & Co Ltd Improvements in and relating to means for assisting heat transfer between a surface and a fluid
NL250645A (ru) 1959-04-30
FR1234258A (fr) 1959-05-13 1960-10-17 Barre de combustible avec canaux intérieurs pour réacteur nucléaire
US3124875A (en) * 1959-10-15 1964-03-17 Method of preparing hollow type
US3046088A (en) 1960-06-22 1962-07-24 Frederick L Horn Protactinium extraction
US3105035A (en) 1961-10-02 1963-09-24 Sterling J Weems Construction of nuclear fuel elements
BE628206A (ru) 1962-02-09
NL288609A (ru) 1962-02-09
BE633880A (ru) * 1962-06-20
GB1031678A (en) * 1962-11-30 1966-06-02 Atomic Energy Authority Uk Improvements in or relating to cermets
NL127098C (ru) 1963-09-06
US3154471A (en) 1963-11-15 1964-10-27 Radkowsky Alvin Nuclear reactor
GB1092285A (en) 1964-02-28 1967-11-22 Atomic Energy Authority Uk Improvements in or relating to nuclear fuel bearing bodies
US3252867A (en) 1964-06-26 1966-05-24 George H Conley Long lifetime nuclear reactor
US3208912A (en) 1964-07-20 1965-09-28 Jaye Seymour Nuclear reactor fuel management method
US3322644A (en) 1964-07-22 1967-05-30 Physies Internat Company Core element for a breeder nuclear reactor
BE651866A (ru) 1964-08-14 1965-02-15
US3308031A (en) 1964-08-21 1967-03-07 Ca Atomic Energy Ltd Method and apparatus for increasing burnout heat flux in reactor pressure tubes
US3285825A (en) 1964-09-16 1966-11-15 Atomic Power Dev Ass Inc Reinforced ceramic fuel elements
JPS4320223Y1 (ru) 1964-10-31 1968-08-24
US3219535A (en) 1964-12-15 1965-11-23 Thomas R Robbins Nuclear reactor control means
DE1514124A1 (de) 1965-03-05 1969-09-04 Licentia Gmbh Hohlzylindrisches Kernreaktor-Brennelement
FR1444002A (fr) 1965-04-28 1966-07-01 Akad Wissenschaften Ddr élément combustible et son procédé de fabrication
US3309277A (en) 1965-05-17 1967-03-14 Jaye Seymour Nuclear reactor and method of fuel management therefor
FR1444181A (fr) 1965-05-19 1966-07-01 Commissariat Energie Atomique élément combustible de réacteur nucléaire
FR1462237A (fr) 1965-07-22 1966-04-15 Commissariat Energie Atomique Réacteur nucléaire refroidi par métal liquide
US3335060A (en) 1965-09-20 1967-08-08 Richard L Diener Seed-blanket neutronic reactor
JPS4212028Y1 (ru) 1965-09-21 1967-07-06
US3378453A (en) 1966-07-13 1968-04-16 Atomic Energy Commission Usa High heat flux neutronic fuel element
US3339631A (en) 1966-07-13 1967-09-05 James A Mcgurty Heat exchanger utilizing vortex flow
GB1126396A (en) * 1966-07-18 1968-09-05 Ca Atomic Energy Ltd Nuclear reactor fuel element and method of manufacturing same
BE694504A (ru) 1967-02-23 1967-07-31
US3486973A (en) 1967-04-11 1969-12-30 Westinghouse Electric Corp Breeder reactor
US3398098A (en) * 1967-06-09 1968-08-20 Atomic Energy Commission Usa Preparation of pure dense hypostoichiometric uranium carbide
US3394049A (en) 1967-09-28 1968-07-23 Atomic Energy Commission Usa Nuclear reactor core configuration
US3546068A (en) 1967-11-01 1970-12-08 Babcock & Wilcox Co Nuclear reactor core construction
US3660228A (en) 1967-11-06 1972-05-02 Teledyne Inc Nuclear reactor control with reflector and absorber means
CA887895A (en) 1968-06-28 1971-12-07 Combustion Engineering-Superheater Ltd. Pressure tube reactor fuel bundle
US3577225A (en) 1968-07-18 1971-05-04 Atomic Energy Commission Method for separating uranium, protactinium, and rare earth fission products from spent molten fluoride salt reactor fuels
GB1279084A (en) 1968-11-15 1972-06-21 Atomic Energy Authority Uk Improvements in or relating to nuclear reactors
DE1809924A1 (de) * 1968-11-20 1970-06-04 Kernforschung Gmbh Ges Fuer Uranaluminid-Aluminium-Dispersionskernbrennstoff und Verfahren zu seiner Herstellung
US3637931A (en) 1968-12-20 1972-01-25 Philips Corp Optic relay for use in television
US3640844A (en) 1969-11-07 1972-02-08 Atomic Energy Commission Power-flattened seed-blanket reactor core
US3880769A (en) * 1970-05-25 1975-04-29 Atomic Energy Commission Method of making microspheroidal nuclear fuels having closed porosity
US3736227A (en) 1970-06-01 1973-05-29 Continental Oil Co Nuclear reactor fuel element spacer assembly lock
US3714322A (en) 1970-06-10 1973-01-30 Atomic Energy Commission Method for preparing high purity 233 uranium
US3859165A (en) 1970-07-29 1975-01-07 Atomic Energy Commission Epithermal to intermediate spectrum pressurized heavy water breeder reactor
US3671392A (en) 1971-03-15 1972-06-20 Atomic Energy Commission Light-water breeder reactor
USRE31583E (en) 1971-05-20 1984-05-08 Combustion Engineering, Inc. Fuel assembly hold-down device
US3814667A (en) 1971-05-20 1974-06-04 Combustion Eng Fuel assembly hold-down device
US3801734A (en) 1971-12-23 1974-04-02 Combustion Eng Reactor-fuel assembly hold down
US3847736A (en) 1972-01-24 1974-11-12 Combustion Eng Flow twister for a nuclear reactor
US3853703A (en) 1972-07-03 1974-12-10 Combustion Eng Fuel assembly hold-up device
US4077835A (en) 1972-11-24 1978-03-07 Westinghouse Electric Corporation Nuclear reactor with self-orificing radial blanket
DE2307925A1 (de) 1973-02-17 1974-08-29 Bayer Ag Herstellung von fluoriden aus kieselfluorwasserstoffsaeure
US4393510A (en) 1973-07-20 1983-07-12 Pacific Nuclear Fuels, Inc. Reactor for production of U-233
US4202793A (en) 1973-10-26 1980-05-13 Agip Nucleare S.P.A. Production of microspheres of thorium oxide, uranium oxide and plutonium oxide and their mixtures containing carbon
US3957575A (en) 1974-04-16 1976-05-18 The United States Of America As Represented By The United States Energy Research And Development Administration Mechanical design of a light water breeder reactor
US3960655A (en) 1974-07-09 1976-06-01 The United States Of America As Represented By The United States Energy Research And Development Administration Nuclear reactor for breeding U233
US3998692A (en) 1974-07-09 1976-12-21 The United States Of America As Represented By The United States Energy Research And Development Administration Nuclear reactor for breeding U233
US4059539A (en) 1974-07-22 1977-11-22 The United States Of America As Represented By The United States Energy Research And Development Administration (U,Zr)N alloy having enhanced thermal stability
US3971575A (en) 1974-11-29 1976-07-27 Combustion Engineering, Inc. Releasable locking device
CA1023935A (en) 1975-02-28 1978-01-10 Her Majesty In Right Of Canada As Represented By Atomic Energy Of Canada Limited Preparation of mixed oxide nuclear fuel
UST947011I4 (ru) 1975-04-17 1976-06-01
US4029740A (en) 1975-11-24 1977-06-14 Rockwell International Corporation Method of producing metal nitrides
DE2601684C3 (de) 1976-01-17 1978-12-21 Hobeg Hochtemperaturreaktor-Brennelement Gmbh, 6450 Hanau Verfahren zur Herstellung von Brenn- und Brutstoff-Partikeln
US4078967A (en) 1976-07-26 1978-03-14 Combustion Engineering, Inc. Holddown device for nuclear fuel assembly
US4072564A (en) 1976-09-24 1978-02-07 The Babcock & Wilcox Company Motion restraining apparatus for a nuclear reactor
US4192716A (en) 1976-12-27 1980-03-11 Combustion Engineering Inc. Peripheral pin alignment system for fuel assemblies
US4111348A (en) 1977-03-09 1978-09-05 Westinghouse Electric Corp. Grid braze application mold
DE2733384C2 (de) 1977-07-23 1982-02-25 Kernforschungsanlage Jülich GmbH, 5170 Jülich Verfahren zur Herstellung von Brutstoff- oder Brenn- und Brutstoffkernen für Brennelemente von Kernreaktoren
DE2742946C2 (de) 1977-09-23 1979-07-26 Kraftwerk Union Ag, 4330 Muelheim Federelement für die Niederhaltung von Kernreaktorbrennelementen
IL53122A (en) 1977-10-13 1980-11-30 Univ Ramot Nuclear reactor and method of operating same
US4194948A (en) 1977-11-14 1980-03-25 General Atomic Locking support for nuclear fuel assemblies
US4236966A (en) 1977-11-30 1980-12-02 Savin Nikolai I Nuclear reactor
US4235669A (en) 1978-03-30 1980-11-25 The United States Of America As Represented By The United States Department Of Energy Nuclear reactor composite fuel assembly
DE2819734C2 (de) 1978-05-05 1986-10-16 Kernforschungszentrum Karlsruhe Gmbh, 7500 Karlsruhe Kernreaktor
US4309251A (en) 1978-11-13 1982-01-05 Combustion Engineering, Inc. Nuclear fuel assembly holddown apparatus
US4298434A (en) 1978-11-13 1981-11-03 Combustion Engineering, Inc. Bottom mounted fuel holddown mechanism
US4268357A (en) 1978-11-24 1981-05-19 Combustion Engineering, Inc. Positive lock holddown device
US4292278A (en) 1979-02-21 1981-09-29 Wyoming Mineral Corp. Purification of wet process phosphoric acid as a pretreatment step in the recovery of uranium
US4285771A (en) 1979-02-22 1981-08-25 Westinghouse Electric Corp. Nuclear core and fuel assemblies
US4324618A (en) 1979-06-08 1982-04-13 The Babcock & Wilcox Company Fuel element assembly
US4304631A (en) 1979-07-02 1981-12-08 The Babcock & Wilcox Company Control component retainer
US4320093A (en) 1979-11-13 1982-03-16 Bohumil Volesky Separation of uranium by biosorption
FR2479535A1 (fr) 1980-03-26 1981-10-02 Commissariat Energie Atomique Dispositif de limitation des effets de la poussee hydraulique axiale s'exercant sur des assemblages combustibles de reacteurs nucleaires
US4534897A (en) 1980-05-27 1985-08-13 The Upjohn Company Piperazinone, piperazine, 1,4-diazepin-2-one and 1,4-diazepine intermediate compounds
US4344912A (en) 1980-06-16 1982-08-17 The United States Of America As Represented By The United States Department Of Energy Method of increasing the deterrent to proliferation of nuclear fuels
US4381284A (en) 1980-12-16 1983-04-26 Westinghouse Electric Corp. Fuel assembly for a nuclear reactor
SE424929B (sv) 1980-12-19 1982-08-16 Asea Atom Ab Brenslepatron avsedd for en kokvattenreaktor
JPS57194390A (en) 1981-05-26 1982-11-29 Tokyo Shibaura Electric Co Fixing device for nuclear fuel assembly
US4474398A (en) 1981-06-26 1984-10-02 Westinghouse Electric Corp. Fuel assembly locking apparatus
US4450016A (en) 1981-07-10 1984-05-22 Santrade Ltd. Method of manufacturing cladding tubes of a zirconium-based alloy for fuel rods for nuclear reactors
JPS5819592A (ja) 1981-07-27 1983-02-04 株式会社日立製作所 高速炉の炉心の出力分布平坦化方法とその方法に用いる燃料集合体
JPS5821194A (ja) 1981-07-29 1983-02-07 株式会社日立製作所 高速増殖炉燃料集合体
KR860000966B1 (ko) 1981-11-30 1986-07-23 엘돈 에이취. 루터 원자로 연료 조립체용 힘 방지 그리드
FR2520148B1 (fr) 1982-01-18 1986-01-10 Commissariat Energie Atomique Piece d'extremite d'assemblage combustible de reacteur nucleaire comportant un levier rigide rappele elastiquement
JPS58140678A (ja) 1982-02-16 1983-08-20 動力炉・核燃料開発事業団 核燃料集合体用スペ−サ
US4560532A (en) 1982-04-15 1985-12-24 Westinghouse Electric Corp. Nuclear fuel assembly
US4666664A (en) 1982-04-15 1987-05-19 Westinghouse Electric Corp. Coolant flow paths within a nuclear fuel assembly
US4584167A (en) 1982-04-23 1986-04-22 Westinghouse Electric Corp. Blanket management method for liquid metal fast breeder reactors
JPS58187891A (ja) 1982-04-26 1983-11-02 日本原子力事業株式会社 燃料集合体
US4495136A (en) 1982-05-11 1985-01-22 Westinghouse Electric Corp. Maximum power capability blanket for nuclear reactors
US4968476A (en) 1982-05-14 1990-11-06 Touro College Light water breeder reactor using a uranium-plutonium cycle
SE434679B (sv) 1982-07-01 1984-08-06 Asea Ab Anordning vid hermetiskt slutna lastceller for eliminering av inverkan pa metverdet av en skillnad mellan trycket i ett givarrum och atmosferstrycket
JPS5923830A (ja) 1982-07-30 1984-02-07 Mitsubishi Heavy Ind Ltd 海水ウラン採取装置
US4544522A (en) 1982-08-20 1985-10-01 General Electric Company Nuclear fuel assembly spacer
US4508679A (en) 1982-08-20 1985-04-02 General Electric Company Nuclear fuel assembly spacer
US4507259A (en) 1982-10-28 1985-03-26 The United States Of America As Represented By The Department Of Energy Axially staggered seed-blanket reactor fuel module construction
US4880607A (en) 1982-12-20 1989-11-14 Phillips Petroleum Company Recovering mineral values from ores
US4578240A (en) 1983-01-03 1986-03-25 Westinghouse Electric Corp. Nuclear reactor fuel assembly spacer grid
JPS59137887A (ja) 1983-01-13 1984-08-08 ウエスチングハウス　エレクトリツク　コ−ポレ−シヨン 原子炉燃料集合体
FR2544538B1 (fr) 1983-04-13 1985-08-02 Fragema Framatome & Cogema Dispositif anti-envol pour reacteur nucleaire
FR2592516B2 (fr) 1985-12-30 1989-08-18 Framatome Sa Procede d'exploitation d'un reacteur nucleaire et reacteur nucleaire a variation de spectre utilisant des grappes de deplacement d'eau
US5386439A (en) 1983-09-13 1995-01-31 Framatome Spectral shift nuclear reactor with improved efficiency
IL70026A0 (en) 1983-10-21 1984-01-31 Univ Ramot Nuclear reactors of the seed and blanket type
US4615862A (en) 1983-12-21 1986-10-07 Westinghouse Electric Corp. Nuclear reactor with fuel assembly support means
US4572816A (en) 1983-12-21 1986-02-25 Westinghouse Electric Corp. Reconstituting a nuclear reactor fuel assembly
US4589929A (en) 1984-02-09 1986-05-20 Kraftwerk Union Aktiengesellschaft Method for treating the surface of finished parts, particularly the surface of tubes and spacers formed of zirconium alloys, for nuclear reactor fuel assemblies
FR2561151B1 (fr) 1984-03-13 1987-08-28 Fragema Framatome & Cogema Procede et installation de soudage de grilles pour assemblage de combustible nucleaire
FR2562314B1 (fr) 1984-03-27 1989-02-17 Commissariat Energie Atomique Procede pour recuperer le plutonium contenu dans des dechets solides
JPH0658437B2 (ja) 1984-11-06 1994-08-03 株式会社日立製作所 原子力プラントの放射能低減方法
US4684495A (en) 1984-11-16 1987-08-04 Westinghouse Electric Corp. Fuel assembly bottom nozzle with integral debris trap
US4671927A (en) 1984-12-03 1987-06-09 Westinghouse Electric Corp. Nuclear fuel rod containing a hybrid gadolinium oxide, boron carbide burnable absorber
US4664880A (en) 1984-12-07 1987-05-12 Westinghouse Electric Corp. Wire mesh debris trap for a fuel assembly
US4670213A (en) 1985-02-12 1987-06-02 Westinghouse Electric Corp. Removable top nozzle subassembly for a reconstitutable nuclear fuel assembly
US4699758A (en) 1985-04-02 1987-10-13 Westinghouse Electric Corp. Reusable locking tube in a reconstitutable fuel assembly
US4678627A (en) 1985-04-04 1987-07-07 Westinghouse Electric Corp. Debris-retaining trap for a fuel assembly
US4671924A (en) 1985-05-02 1987-06-09 Westinghouse Electric Corp. Hold-down device of fuel assembly top nozzle employing leaf springs
US4716015A (en) 1985-05-15 1987-12-29 Westinghouse Electric Corp. Modular nuclear fuel assembly design
US4678632A (en) 1985-06-05 1987-07-07 Westinghouse Electric Corp. Nuclear fuel assembly grid with predetermined grain orientation
US4762676A (en) 1985-07-05 1988-08-09 Westinghouse Electric Corp. Top nozzle adapter plate with fuel rod capture grid having pressure drop adjusting means
FR2585499B1 (fr) 1985-07-29 1989-10-27 Fragema Framatome & Cogema Dispositif de maintien hydraulique pour assemblage combustible nucleaire et reacteur nucleaire en comportant application
US4702883A (en) 1985-08-05 1987-10-27 Westinghouse Electric Corp. Reconstitutable fuel assembly having removable upper stops on guide thimbles
US4652425A (en) 1985-08-08 1987-03-24 Westinghouse Electric Corp. Bottom grid mounted debris trap for a fuel assembly
FR2589614B1 (fr) 1985-08-09 1988-01-08 Fragema Framatome & Cogema Assemblage combustible nucleaire a structure de maintien et dispositif anti-envol
SE450177B (sv) * 1985-10-16 1987-06-09 Asea Atom Ab Kernbrenslepatron
US4692304A (en) 1985-12-23 1987-09-08 Westinghouse Electric Corp. Removable and reusable locking pin for top nozzle assembly and disassembly
JPS62168091A (ja) 1986-01-20 1987-07-24 株式会社日立製作所 原子炉
US4842814A (en) 1986-02-03 1989-06-27 Hitachi, Ltd. Nuclear reactor fuel assembly
US4699761A (en) 1986-04-30 1987-10-13 Westinghouse Electric Corp. Integral reusable locking arrangement for a removable top nozzle subassembly of a reconstitutable nuclear fuel assembly
US6278757B1 (en) 1986-09-17 2001-08-21 Hitachi, Ltd Fuel assembly and nuclear reactor
GB8626238D0 (en) 1986-11-03 1986-12-03 Nat Nuclear Corp Ltd Nuclear reactor core restraint
FR2606201B1 (fr) 1986-11-03 1988-12-02 Electricite De France Procede de gestion du coeur d'un reacteur nucleaire a eau pressurisee
JPS63134520A (ja) 1986-11-25 1988-06-07 Mitsubishi Nuclear Fuel Co Ltd 六フツ化ウランの連続加水分解法
EP0277533A1 (de) 1987-01-28 1988-08-10 Siemens Aktiengesellschaft Kernreaktorbrennelement
US4749544A (en) 1987-03-24 1988-06-07 General Electric Company Thin walled channel
US4765909A (en) 1987-04-23 1988-08-23 Gte Laboratories Incorporated Ion exchange method for separation of scandium and thorium
US4900507A (en) 1987-05-05 1990-02-13 Westinghouse Electric Corp. Nuclear fuel assembly debris filter bottom nozzle
ES2034312T3 (es) 1987-06-23 1993-04-01 Framatome Procedimiento de fabricacion de un tubo de aleacion de circonio para reactor nuclear y aplicaciones.
ES2027026T3 (es) 1987-08-24 1992-05-16 Framatome Procedimiento para la fabricacion de una rejilla tabique para un conjunto combustible de un reactor nuclear.
FR2623792B1 (fr) 1987-11-27 1991-02-15 Rhone Poulenc Chimie Procede de separation du thorium et des terres rares d'un concentre de fluorures de ces elements
FR2627321B1 (fr) 1988-02-11 1992-08-14 Framatome Sa Equipements internes superieurs de reacteur nucleaire muni d'un dispositif de separation des debits
US4832905A (en) 1988-04-15 1989-05-23 Combustion Engineering, Inc. Lower end fitting debris collector
JPH0636046B2 (ja) 1988-06-08 1994-05-11 株式会社日立製作所 燃料集合体，燃料スペーサ及び原子炉の初装荷炉心
FR2632657B1 (fr) 1988-06-10 1990-09-28 Cogema Procede de traitement d'un minerai uranifere en limitant les pertes de reactifs
JP2545583B2 (ja) 1988-07-06 1996-10-23 動力炉・核燃料開発事業団 三酸化ウラン粉体の連続的化学的活性化装置と方法
JPH0266494A (ja) 1988-08-31 1990-03-06 Nippon Atom Ind Group Co Ltd 原子炉用金属燃料
US4942016A (en) 1988-09-19 1990-07-17 General Electric Company Nuclear fuel element
US4879086A (en) 1988-09-27 1989-11-07 The United States Of America As Represented By The United States Department Of Energy Neutron economic reactivity control system for light water reactors
JP2559136B2 (ja) 1988-10-26 1996-12-04 三菱マテリアル株式会社 原子炉燃料被覆管支持格子用Ｚｒ合金
US5024807A (en) 1988-12-05 1991-06-18 Combustion Engineering, Inc. Debris catching spring detent spacer grid
US4986960A (en) 1989-01-30 1991-01-22 The Babcock & Wilcox Company Two piece end fitting with hairpin springs
US5136619A (en) 1989-02-13 1992-08-04 The United States Of America As Represented By The United States Department Of Energy Thermal breeder fuel enrichment zoning
JP2523856B2 (ja) 1989-02-21 1996-08-14 三菱原子燃料株式会社 ホ―ルドダウン組立体
GB8906004D0 (en) 1989-03-15 1989-04-26 British Nuclear Fuels Plc A process for producing uranium hexafluoride
US5024426A (en) 1989-03-17 1991-06-18 Advanced Nuclear Fuels Corporation Bimetallic spring member for radiation environment
FR2646004B1 (fr) 1989-04-12 1993-12-24 Framatome Plaque de filtration associee a un embout inferieur d'un assemblage combustible d'un reacteur nucleaire
JPH0713664B2 (ja) 1989-04-26 1995-02-15 株式会社日立製作所 燃料集合体および燃料スペーサ
FR2646548B1 (fr) 1989-04-28 1993-11-26 Framatome Grille a ressorts de maintien pour assemblage combustible nucleaire
US5024810A (en) 1989-05-22 1991-06-18 Combustion Engineering, Inc. Support grid with integral inclined waves
US5073336A (en) 1989-05-25 1991-12-17 General Electric Company Corrosion resistant zirconium alloys containing copper, nickel and iron
US4986957A (en) 1989-05-25 1991-01-22 General Electric Company Corrosion resistant zirconium alloys containing copper, nickel and iron
US5026516A (en) 1989-05-25 1991-06-25 General Electric Company Corrosion resistant cladding for nuclear fuel rods
US5024809A (en) 1989-05-25 1991-06-18 General Electric Company Corrosion resistant composite claddings for nuclear fuel rods
US4971753A (en) * 1989-06-23 1990-11-20 General Electric Company Nuclear fuel element, and method of forming same
FR2649417B1 (fr) 1989-07-06 1992-05-07 Cezus Co Europ Zirconium Procede d'obtention d'uranium a partir d'oxyde et utilisant une voie chlorure
US4997596A (en) 1989-09-18 1991-03-05 General Electric Company Fissionable nuclear fuel composition
FR2652591B1 (fr) 1989-10-03 1993-10-08 Framatome Procede d'oxydation superficielle d'une piece en metal passivable, et elements d'assemblage combustible en alliage metallique revetus d'une couche d'oxyde protectrice.
US5094802A (en) 1989-10-13 1992-03-10 B&W Fuel Company Nuclear fuel assembly debris filter
US5037605A (en) 1989-10-13 1991-08-06 B&W Fuel Company Nuclear fuel assembly debris filter
US5009837A (en) 1989-11-03 1991-04-23 Westinghouse Electric Corp. Axially modular fuel assembly and rod for optimal fuel utilization
SE464994B (sv) 1989-11-14 1991-07-08 Asea Atom Ab Braenslepatron foer en kokarreaktor
JPH03158485A (ja) 1989-11-16 1991-07-08 Tanaka Kikinzoku Kogyo Kk ウラニル塩の還元方法
JPH0830748B2 (ja) 1989-12-06 1996-03-27 三菱原子燃料株式会社 支持格子
US5085827A (en) 1989-12-27 1992-02-04 General Electric Company Nuclear fuel assembly spacer and loop spring with enhanced flexibility
US5002726A (en) 1989-12-27 1991-03-26 General Electric Company Nuclear fuel assembly spacer and loop spring with enhanced flexibility
US5019327A (en) 1990-01-25 1991-05-28 General Electric Company Fuel assembly transfer basket for pool type nuclear reactor vessels
US5089210A (en) 1990-03-12 1992-02-18 General Electric Company Mox fuel assembly design
US5069864A (en) 1990-04-16 1991-12-03 General Electric Company Nuclear fuel assembly spacer and spring
US5030412A (en) 1990-05-04 1991-07-09 Advanced Nuclear Fuels Corporation Fuel assembly debris screen
US5221515A (en) 1990-05-07 1993-06-22 Franco-Belge De Fabrication De Combustible Method for manufacturing grids for a nuclear fuel assembly
US5032351A (en) 1990-05-11 1991-07-16 General Electric Company Modified cross point spacer apparatus and construction
FR2665292B1 (fr) 1990-07-24 1992-11-13 Framatome Sa Grille additionnelle pour assemblage combustible de reacteur nucleaire et assemblage en comportant application.
US5149491A (en) 1990-07-10 1992-09-22 General Electric Company Seed and blanket fuel arrangement for dual-phase nuclear reactors
US5110539A (en) 1990-12-07 1992-05-05 Combustion Engineering, Inc. Spacer grid assembly fixture
FR2665293B1 (fr) 1990-07-24 1993-12-24 Framatome Procede de fabrication de grille a cellules calibrees pour assemblage combustible nucleaire.
US5194216A (en) 1990-08-22 1993-03-16 Nuclear Assurance Corporation Guide plate for locating rods in an array
US5009839A (en) 1990-09-04 1991-04-23 B&W Fuel Company Nuclear fuel assembly bottom nozzle plate
US5053191A (en) 1990-09-13 1991-10-01 Combustion Engineering, Inc. Fuel assembly holddown spring
US5141701A (en) 1990-09-14 1992-08-25 Combustion Engineering, Inc. Bottom nozzle to lower grid attachment
WO1992005565A1 (de) 1990-09-18 1992-04-02 Siemens Aktiengesellschaft Brennelement mit gesicherten stabenden am fuss
JP3036810B2 (ja) 1990-09-19 2000-04-24 株式会社日立製作所 燃料集合体
US5089221A (en) 1990-10-25 1992-02-18 General Electric Company Composite spacer with Inconel grid and Zircaloy band
US5209899A (en) 1990-10-25 1993-05-11 General Electric Company Composite spacer with inconel grid and zircaloy band
JP2945459B2 (ja) 1990-10-25 1999-09-06 株式会社日立製作所 燃料集合体
DE69125249T2 (de) 1990-11-28 1997-06-26 Hitachi Ltd Teil aus Zirkonlegierung mit niedrigem Bestrahlungswachstum, dessen Herstellungsverfahren, Brennelementkanalkasten und Aufbau sowie deren Verwendung
EP0560764B1 (de) 1990-12-05 1997-01-08 Siemens Aktiengesellschaft Brennelement oder steuerelement mit einer lösbaren verriegelung zwischen kasten und oberen oder unteren endteil des elementes
DE69203750T2 (de) 1991-02-25 1996-01-18 Hitachi Ltd Brennstoffbündel mit Strömungskanal.
US5192495A (en) 1991-02-27 1993-03-09 Babcock & Wilcox Company Sic barrier overcoating and infiltration of fuel compact
SE468110B (sv) 1991-03-13 1992-11-02 Asea Atom Ab Spridare foer sammanhaallande av braenslestavar i en kaernreaktors braenslepatron
JPH04303796A (ja) 1991-03-30 1992-10-27 Toshiba Corp 原子炉用燃料集合体
US5188797A (en) 1991-04-03 1993-02-23 Combustion Engineering, Inc. Extended weld tab for fuel assembly grid
US5147597A (en) 1991-04-09 1992-09-15 Electric Power Research Institute Prestabilized chromium protective film to reduce radiation buildup
US5200142A (en) 1991-04-18 1993-04-06 Westinghouse Electric Corp. Nuclear fuel assembly top nozzle with improved peripheral hold-down assembly
US5186891A (en) 1991-05-17 1993-02-16 General Electric Company Swirl vanes in inconel spacer
US5259009A (en) 1991-08-19 1993-11-02 Siemens Power Corporation Boiling water reactor fuel rod assembly with fuel rod spacer arrangement
DE59106741D1 (de) 1991-08-28 1995-11-23 Siemens Ag Kernreaktorbrennelement mit Blattfedern.
JP2638351B2 (ja) 1991-09-20 1997-08-06 株式会社日立製作所 燃料集合体
US5259010A (en) 1991-09-30 1993-11-02 B&W Nuclear Service Company Replacement spacer pin with locking keys
FR2682213B1 (fr) 1991-10-04 1994-01-07 Framatome Embout inferieur d'un assemblage combustible pour reacteur nucleaire refroidi a l'eau.
US5135728A (en) 1992-01-03 1992-08-04 Karraker David G Method for dissolving delta-phase plutonium
US5386440A (en) 1992-01-10 1995-01-31 Hitachi, Ltd. Boiling water reactor
FR2686445B1 (fr) 1992-01-17 1994-04-08 Framatome Sa Crayon de combustible nucleaire et procede de fabrication de la gaine d'un tel crayon.
CZ181294A3 (en) 1992-02-04 1995-01-18 Radkowsky Thorium Power Corp Light-water pile without abrupt multiplication and with economic use of thorium
US5219519A (en) 1992-02-21 1993-06-15 General Electric Company Increased fuel column height for boiling water reactor fuel rods
US5267291A (en) 1992-02-21 1993-11-30 General Electric Company Spacer band with optimized fuel bundle to channel clearance in a boiling water reactor
DE9206038U1 (ru) 1992-02-28 1992-07-16 Siemens Ag, 8000 Muenchen, De
SE470032B (sv) 1992-03-17 1993-10-25 Asea Atom Ab Spridare för sammanhållning av ett antal långsträckta bränslestavar till ett knippe för placering i en kärnreaktor av BWR- eller PWP-typ.
US5247550A (en) 1992-03-27 1993-09-21 Siemens Power Corporation Corrosion resistant zirconium liner for nuclear fuel rod cladding
US5278883A (en) 1992-03-30 1994-01-11 Siemens Power Corporation Low pressure drop spacer for nuclear fuel assemblies
US5297176A (en) 1992-05-22 1994-03-22 Westinghouse Electric Corp. Remotely replaceable fuel assembly alignment pin
US5241570A (en) 1992-06-08 1993-08-31 General Electric Company Core-control assembly with a fixed fuel support
US5307393A (en) 1992-06-29 1994-04-26 Combustion Engineering, Inc. Split vane alternating swirl mixing grid
US5283821A (en) 1992-06-29 1994-02-01 Combustion Engineering, Inc. Split-cone spacer grid
FR2692880B1 (fr) 1992-06-29 1994-09-02 Pechiney Uranium Procédé d'électro-fluoration sélective d'alliages ou de mélanges métalliques à base d'uranium.
US5271053A (en) 1992-07-02 1993-12-14 Combustion Engineering, Inc. Holddown leaf spring assembly
FR2693476B1 (fr) 1992-07-09 1994-09-02 Cezus Co Europ Zirconium Produit extérieurement en alliage de Zr, son procédé de fabrication et son utilisation.
US5272742A (en) 1992-07-20 1993-12-21 B&W Fuel Company Upper end fitting
US5286946A (en) 1992-09-02 1994-02-15 Beloit Technologies, Inc. Method and apparatus for securing an end of a headbox flow tube
US5349618A (en) 1992-09-09 1994-09-20 Ehud Greenspan BWR fuel assembly having oxide and hydride fuel
JPH0694869A (ja) 1992-09-17 1994-04-08 Nippon Nuclear Fuel Dev Co Ltd 核燃料ペレット及び製造方法
US5282231A (en) 1992-09-23 1994-01-25 Siemens Power Corporation Lower tie plate cast frame
US5274685A (en) 1992-09-24 1993-12-28 Siemens Power Corporation Non-levitating PWR fuel assembly
US5243635A (en) 1992-09-25 1993-09-07 Combustion Engineering, Inc. Fuel rod capturing grid spring and arch
US5299246A (en) 1992-09-25 1994-03-29 Combustion Engineering, Inc. Shape-memory alloys in the construction of nuclear fuel spacer grids
CZ82095A3 (en) 1992-10-13 1995-07-12 Siemens Ag Spacer having a form of as grid for fuel element of nuclear reactor
FR2697010B1 (fr) 1992-10-19 1995-02-24 Rhone Poulenc Chimie Procédé de traitement des composés solubles du thorium et nouveau phosphate de thorium ainsi obtenu.
US5301218A (en) 1992-10-22 1994-04-05 General Electric Company Tolerant metal fuel/cladding barrier and related method of installation
US5377246A (en) 1992-10-28 1994-12-27 General Electric Company Elliptical metal fuel/cladding barrier and related method for improving heat transfer
SE506174C2 (sv) 1992-12-18 1997-11-17 Asea Atom Ab Metod att framställa kärnbränsleelement
US5278882A (en) 1992-12-30 1994-01-11 Combustion Engineering, Inc. Zirconium alloy with superior corrosion resistance
US5483564A (en) 1993-04-12 1996-01-09 General Electric Company Lower tie plate strainers including double corrugated strainers for boiling water reactors
US5384814A (en) 1993-04-12 1995-01-24 General Electric Company Lower tie plate strainers for boiling water reactors
US5375154A (en) 1993-04-15 1994-12-20 General Electric Company Reduced pressure drop spacer for boiling water reactor fuel bundles
US5519748A (en) 1993-04-23 1996-05-21 General Electric Company Zircaloy tubing having high resistance to crack propagation
US5618356A (en) 1993-04-23 1997-04-08 General Electric Company Method of fabricating zircaloy tubing having high resistance to crack propagation
US5437747A (en) 1993-04-23 1995-08-01 General Electric Company Method of fabricating zircalloy tubing having high resistance to crack propagation
SE509238C2 (sv) 1993-07-05 1998-12-21 Asea Atom Ab Reaktorhärd
US5524032A (en) 1993-07-14 1996-06-04 General Electric Company Nuclear fuel cladding having an alloyed zirconium barrier layer
US5383228A (en) 1993-07-14 1995-01-17 General Electric Company Method for making fuel cladding having zirconium barrier layers and inner liners
US5469481A (en) 1993-07-14 1995-11-21 General Electric Company Method of preparing fuel cladding having an alloyed zirconium barrier layer
US5341407A (en) 1993-07-14 1994-08-23 General Electric Company Inner liners for fuel cladding having zirconium barriers layers
US5517540A (en) 1993-07-14 1996-05-14 General Electric Company Two-step process for bonding the elements of a three-layer cladding tube
JP3094195B2 (ja) 1993-08-10 2000-10-03 株式会社小糸製作所 ヘッドランプレベリング機構
US5390221A (en) 1993-08-23 1995-02-14 General Electric Company Debris filters with flow bypass for boiling water reactors
SE509202C2 (sv) 1993-09-20 1998-12-14 Asea Atom Ab Spridare och bränslepatron för en kokarreaktor
US5417780A (en) 1993-10-28 1995-05-23 General Electric Company Process for improving corrosion resistance of zirconium or zirconium alloy barrier cladding
WO1995012203A1 (en) 1993-10-29 1995-05-04 Carlo Rubbia An energy amplifier for 'clean' nuclear energy production driven by a particle beam accelerator
SE510816C2 (sv) 1993-11-02 1999-06-28 Asea Atom Ab Spridare och bränslepatron för en kärnreaktor
US5390220A (en) 1993-11-29 1995-02-14 General Electric Company Lower tie plate strainers including helical spring strainers for boiling water reactors
US5345483A (en) 1993-12-02 1994-09-06 General Electric Company Lower tie plate strainers having double plate with offset holes for boiling water reactors
US5452334A (en) 1993-12-17 1995-09-19 Siemens Power Corporation Pressurized water reactor nuclear fuel assembly with disengaging upper tie plate corner post
US5440599A (en) 1994-02-03 1995-08-08 Combustion Engineering, Inc. Spacer grid with integral "side supported" flow directing vanes
US5488634A (en) 1994-02-10 1996-01-30 General Electric Company Lower tie plate debris catcher for a nuclear reactor
US5538701A (en) 1994-02-28 1996-07-23 The Regents Of The University Of California, Office Of Technology Transfer Process to remove actinides from soil using magnetic separation
US5434898A (en) 1994-03-14 1995-07-18 Siemens Power Corporation Nuclear fuel assembly
US5438598A (en) 1994-03-15 1995-08-01 B&W Fuel Company Combined lower end fitting and debris filter
JP3094778B2 (ja) 1994-03-18 2000-10-03 株式会社日立製作所 軽水炉用燃料集合体とそれに用いられる部品及び合金並びに製造法
US5436947A (en) 1994-03-21 1995-07-25 General Electric Company Zirconium alloy fuel cladding
US5434897A (en) 1994-03-21 1995-07-18 General Electric Company Hydride damage resistant fuel elements
FR2717717B1 (fr) 1994-03-24 1996-05-15 Cezus Co Europ Zirconium Procédé de fabrication d'une ébauche tubulaire en zircaloy 2 plaquée intérieurement en zirconium et apte au contrôle ultrasonore de l'épaisseur de zirconium.
US5444748A (en) 1994-04-04 1995-08-22 Westinghouse Electric Corporation Grid structure for supporting fuel rods in a nuclear reactor
US5473650A (en) 1994-04-15 1995-12-05 General Electric Company Lower tie plate debris catcher for a nuclear reactor
SE516267C2 (sv) 1994-06-13 2001-12-10 Westinghouse Atom Ab Styrning av kylflöde över ett stort blandningstvärsnitt i en kärnreaktor
US5436946A (en) 1994-06-20 1995-07-25 General Electric Company Spring retention of upper tie plate and fuel bundle channel in a nuclear reactor assembly
US5481578A (en) 1994-06-24 1996-01-02 General Electric Company Perforated tube debris catcher for a nuclear reactor
US5481577A (en) 1994-06-30 1996-01-02 Siemens Power Corporation Boiling water reactor fuel assembly filter
US5488644A (en) 1994-07-13 1996-01-30 General Electric Company Spring assemblies for adjoining nuclear fuel rod containing ferrules and a spacer formed of the spring assemblies and ferrules
US5420901A (en) 1994-07-13 1995-05-30 Johansson; Eric B. Lower tie plate debris catcher for a nuclear reactor
JPH0836079A (ja) 1994-07-21 1996-02-06 Mitsubishi Nuclear Fuel Co Ltd 燃料集合体に用いられるグリッドのロー付け方法及び該方法によりロー付けされた燃料集合体用グリッド
US5526387A (en) 1994-08-12 1996-06-11 General Electric Company Flow tabs for a fuel rod bundle spacer
US5737375A (en) 1994-08-16 1998-04-07 Radkowsky Thorium Power Corporation Seed-blanket reactors
FR2723965B1 (fr) 1994-08-30 1997-01-24 Cezus Co Europ Zirconium Procede de fabrication de toles en alliage de zirconium presentant une bonne resistance a la corrosion nodulaire et a la deformation sous irradiation
SE503349C2 (sv) 1994-09-09 1996-05-28 Asea Atom Ab Kärnbränsleelement innefattande en kapsling med ett yttre skikt av Zr-Sn-Fe-legering
EP0782749B1 (de) 1994-09-21 1998-04-29 Siemens Aktiengesellschaft Naturumlaufreaktor, insbesondere siedewasserreaktor, und verfahren zur regulierung des kernkühlmitteldurchsatzes eines naturumlaufreaktors
US5490189A (en) 1994-09-22 1996-02-06 B&W Fuel Company Nuclear fuel assembly debris filter
US5539793A (en) 1994-10-27 1996-07-23 General Electric Company Lower tie plate debris catcher for a nuclear reactor
US5519745A (en) 1994-11-03 1996-05-21 General Electric Company Lower tie plate debris catcher for a nuclear reactor
US5528640A (en) 1994-11-07 1996-06-18 General Electric Company Low pressure double offset plate catcher for a nuclear reactor
US5699396A (en) 1994-11-21 1997-12-16 General Electric Company Corrosion resistant zirconium alloy for extended-life fuel cladding
US5519746A (en) 1994-11-28 1996-05-21 General Electric Company Large BWR fuel channel design
FR2727691A1 (fr) 1994-12-01 1996-06-07 Framatome Sa Procede de revetement d'un substrat en metal ou alliage passivable, par une couche d'oxyde, et tube de gainage et grille-entretoise pour assemblage combustible revetus d'une couche d'oxyde
US5490190A (en) 1994-12-21 1996-02-06 Westinghouse Electric Corporation Alignment pin and method for aligning a nuclear fuel assembly with respect to a core plate disposed in a nuclear reactor pressure vessel
FR2728718A1 (fr) 1994-12-23 1996-06-28 Framatome Sa Assemblage combustible a poison consommable et procede d'exploitation de reacteur mettant en oeuvre un tel assemblage
FR2729000A1 (fr) 1994-12-29 1996-07-05 Framatome Sa Procede de fabrication d'un tube pour assemblage de combustible nucleaire et tubes conformes a ceux ainsi obtenus
US5546437A (en) 1995-01-11 1996-08-13 General Electric Company Spacer for nuclear fuel rods
FR2730090B1 (fr) 1995-01-30 1997-04-04 Framatome Sa Tube en alliage a base de zirconium pour assemblage combustible nucleaire et procede de fabrication d'un tel tube
US5600694A (en) 1995-02-22 1997-02-04 Combustion Engineering, Inc. Nuclear fuel upper end fitting quick disconnect joint
FR2736191B1 (fr) 1995-06-29 1997-09-26 Franco Belge Combustibles Procede et installation de soudage d'une grille-entretoise d'un assemblage de combustible pour un reacteur nucleaire et dispositif de soudage par l'interieur d'une grille
FR2736189B1 (fr) 1995-06-29 1997-09-26 Framatome Sa Grille-entretoise d'un assemblage de combustible pour un reacteur nucleaire comportant des ressorts rapportes
US5572560A (en) 1995-06-29 1996-11-05 Siemens Power Corporation BWR fuel assembly having fuel rods with variable fuel rod pitches
FR2736192B1 (fr) 1995-06-29 1997-09-26 Franco Belge Combustibles Procede et dispositif de soudage de plaquettes entrecroisees d'une grille-entretoise d'un assemblage de combustible par l'exterieur de la grille
SE504479C2 (sv) 1995-06-30 1997-02-17 Asea Atom Ab Bränslepatron för kokarvattenreaktor
SE504643C2 (sv) 1995-07-12 1997-03-24 Asea Atom Ab Bränslepatron för en kokarvattenreaktor där bränslestavarna är försedda med ett plenumrör som omsluter ett fissionsgasplenum
FR2737335B1 (fr) 1995-07-27 1997-10-10 Framatome Sa Tube pour assemblage de combustible nucleaire et procede de fabrication d'un tel tube
US5675621A (en) 1995-08-17 1997-10-07 General Electric Company Reduced height flat spring spacer for nuclear fuel rods
SE504805C2 (sv) 1995-08-24 1997-04-28 Asea Atom Ab Spridare för en bränslepatron och en bränslepatron
US5606724A (en) 1995-11-03 1997-02-25 Idaho Research Foundation, Inc. Extracting metals directly from metal oxides
FR2742254B1 (fr) 1995-12-12 1998-02-13 Comurhex Procede d'obtention d'un melange d'oxydes metalliques pulverulents, appartenant a la filiere nucleaire, a partir de leurs nitrates
US5944060A (en) 1995-12-26 1999-08-31 Boeing North American, Inc. Composite duct system
US6002735A (en) 1996-01-30 1999-12-14 Siemens Power Corporation Nuclear fuel pellet
US5727039A (en) 1996-03-19 1998-03-10 General Electric Company Spacer capture mechansim for non-round water rods
DE69706905T2 (de) 1996-03-19 2002-04-04 Eaton Corp Verstellbare Pumpe sowie Fernsteuersystem dafür
US5740218A (en) 1996-03-26 1998-04-14 General Electric Company Spacer for a transportable nuclear fuel rod bundle
US5748694A (en) 1996-03-26 1998-05-05 General Electric Company Fuel bundle filter for a nuclear reactor fuel bundle assembly
US5711826A (en) 1996-04-12 1998-01-27 Crs Holdings, Inc. Functionally gradient cladding for nuclear fuel rods
FR2747397B1 (fr) 1996-04-16 1998-07-10 Cezus Co Europ Zirconium Alliage a base de zirconium resistant au fluage et a la corrosion par l'eau et la vapeur, procede de fabrication, et utilisation dans un reacteur nucleaire
US6005906A (en) 1996-06-12 1999-12-21 Siemens Power Corporation Corrosion and hydride resistant nuclear fuel rod
SE506819C2 (sv) 1996-06-20 1998-02-16 Asea Atom Ab Bränslepatron med topp- och bottenplatta vilka innefattar sidostöd för stödjande av bränslestavar. Bränslepatron där topp- och bottenplattan innefattar blandningsfenor. Bränslepatron där topp- och bottenplattan har ett vågformigt tvärsnitt
SE506820C2 (sv) 1996-06-20 1998-02-16 Asea Atom Ab Bränslepatron innefattande ett flertal på varandra staplade bränsleenheter, där bränsleenheterna innefattar bränslestavar med skilda diametrar
SE508059C2 (sv) 1996-06-20 1998-08-17 Asea Atom Ab Kärnbränslepatron uppbyggd av ett flertal på varandra staplade bränsleenheter
SE9602541D0 (sv) 1996-06-27 1996-06-27 Asea Atom Ab Bränslepatron innefattande en komponent för sammanhållning av långsträckta element
US6320924B1 (en) 1996-07-02 2001-11-20 General Electric Company I-Spring and associated ferrule assembly for a nuclear fuel bundle
JPH1021399A (ja) 1996-07-04 1998-01-23 Toppan Printing Co Ltd 印刷物の断裁位置検査方法
GB9619182D0 (en) 1996-09-13 1996-10-23 British Nuclear Fuels Plc Improvements in and relating to nuclear fuel assemblies
SE508106C2 (sv) 1996-12-20 1998-08-31 Asea Atom Ab Bränslepatron för kokarvattenreaktor innefattande en rotationscell samt en i denna anordnad ångledningskanal
WO1998032133A1 (de) 1997-01-15 1998-07-23 Siemens Aktiengesellschaft Abstandhalter mit befestigten federn für brennelemente von kernreaktoren
FR2758459B1 (fr) 1997-01-17 1999-05-07 Pharma Pass Composition pharmaceutique de fenofibrate presentant une biodisponibilite elevee et son procede de preparation
SE508875C2 (sv) 1997-03-11 1998-11-09 Asea Atom Ab Anordning och förfarande för låsning av stavar i bottenplattan på en bränslepatron
US5768332A (en) 1997-03-27 1998-06-16 Siemens Power Corporation Nuclear fuel rod for pressurized water reactor
JP3411466B2 (ja) 1997-03-31 2003-06-03 株式会社日立製作所 沸騰水型原子炉炉心及びその運転方法
US5787142A (en) 1997-04-29 1998-07-28 Siemens Power Corporation Pressurized water reactor nuclear fuel assembly
JPH1123765A (ja) 1997-05-09 1999-01-29 Toshiba Corp 原子炉の炉心
US5826163A (en) 1997-05-21 1998-10-20 United States Enrichment Corporation Removal of technetium impurities from uranium hexafluoride
US5859887A (en) 1997-06-20 1999-01-12 Westinghouse Electric Company Nuclear fuel assembly support grid
FR2766003B1 (fr) 1997-07-11 1999-12-03 Framatome Sa Grille pour assemblage combustible nucleaire et plaquette pour une telle grille
US5805657A (en) * 1997-07-28 1998-09-08 The United States Of America As Represented By The United States Department Of Energy Nuclear fuel elements made from nanophase materials
US5838753A (en) 1997-08-01 1998-11-17 Siemens Power Corporation Method of manufacturing zirconium niobium tin alloys for nuclear fuel rods and structural parts for high burnup
US5854818A (en) 1997-08-28 1998-12-29 Siemens Power Corporation Zirconium tin iron alloys for nuclear fuel rods and structural parts for high burnup
KR100265027B1 (ko) 1997-12-12 2000-09-01 장인순 원자로의핵연료집합체이중판노즐형냉각재혼합지지격자
KR100318233B1 (ko) 1997-12-22 2002-03-20 장인순 프레팅마모억제를위한h형스프링이부착된지지격자체
JP3065576B2 (ja) 1997-12-25 2000-07-17 核燃料サイクル開発機構 原子炉用液体金属ボンド型燃料棒
KR100287278B1 (ko) 1998-02-04 2001-04-16 장인순 회전유동발생장치를가진핵연료집합체지지격자
JP3913386B2 (ja) 1998-02-10 2007-05-09 株式会社日立製作所 燃料集合体
US6934350B1 (en) 1998-02-17 2005-08-23 General Electric Company Core configuration for a nuclear reactor
US6010671A (en) 1998-05-22 2000-01-04 Siemens Power Corporation Process for selective recovery of uranium from sludge
JPH11352272A (ja) 1998-06-10 1999-12-24 Hitachi Ltd 原子炉の炉心及びその炉心に用いられる燃料集合体並びに燃料要素
US6228337B1 (en) 1998-12-02 2001-05-08 Cameco Corporation Method for reducing uranium trioxide
JP3977532B2 (ja) 1998-12-24 2007-09-19 株式会社日立製作所 燃料集合体、原子炉の炉心及びチャンネルボックス
JP2000214286A (ja) 1999-01-27 2000-08-04 Mitsubishi Nuclear Fuel Co Ltd 支持格子溶接装置
JP2000214285A (ja) 1999-01-27 2000-08-04 Mitsubishi Nuclear Fuel Co Ltd 支持格子溶接装置
WO2000048199A1 (fr) 1999-02-15 2000-08-17 Framatome Procede de fabrication d'elements minces en alliage a base de zirconium et plaquettes ainsi realisees
JP3510211B2 (ja) 1999-03-29 2004-03-22 フラマトム アンプ ゲゼルシャフト ミット ベシュレンクテル ハフツング 加圧水炉の燃料棒用の被覆管およびその被覆管の製造方法
US6243433B1 (en) 1999-05-14 2001-06-05 General Electic Co. Cladding for use in nuclear reactors having improved resistance to stress corrosion cracking and corrosion
KR100330355B1 (ko) 1999-06-04 2002-04-01 장인순 회전유동발생 날개를 가진 덕트형 핵연료 집합체 지지격자
KR100330354B1 (ko) 1999-06-11 2002-04-01 장인순 핵연료집합체의 바가지형 혼합날개 지지격자체
KR100330358B1 (ko) 1999-07-29 2002-04-01 장인순 냉각수 혼합을 위한 딤플형 베인과 다중스프링이 부착된 지지격자체
US6478970B1 (en) 1999-09-17 2002-11-12 Framatome Anp Inc. Treatment process for removing radioactive thorium from solvent extraction liquid effluent
US6434209B1 (en) 1999-09-27 2002-08-13 Atomic Energy Of Canada Limited/Energie Critical power enhancement system for a pressurized fuel channel type nuclear reactor using alignment of fuel bundle pairs
FR2799210B1 (fr) 1999-09-30 2001-11-30 Framatome Sa Alliage a base de zirconium et procede de fabrication de composant pour assemblage de combustible nucleaire en un tel alliage
FR2801323B1 (fr) 1999-11-23 2002-02-01 Cezus Cie Europ Du Zirconium Alliage a base de zirconium a forte resistance a la corrosion et a l'hydruration par l'eau et la vapeur d'eau et procede de transformation thermomecanique de l'alliage
GB9928035D0 (en) 1999-11-27 2000-01-26 British Nuclear Fuels Plc A method of separating Uranium from irradiated Nuclear Fuel
FR2802330B1 (fr) 1999-12-13 2002-03-01 Franco Belge Combustibles Dispositif et procede de montage d'une grille-entretoise d'un assemblage de combustible pour un reacteur nucleaire
US6539073B1 (en) 2000-02-17 2003-03-25 General Electric Company Nuclear fuel bundle having spacers captured by a water rod
FR2809225B1 (fr) 2000-05-16 2002-07-12 Commissariat Energie Atomique Element combustible monobloc et reacteur nucleaire a eau bouillante et a spectre rapide utilisant des elements de ce type
US6519309B1 (en) 2000-06-29 2003-02-11 Framatone Anp Inc. Pressurized water reactor fuel assembly spacer grid
US6497822B2 (en) 2000-07-27 2002-12-24 Arch Chemicals, Inc. Chemical feeder
RU2170956C1 (ru) 2000-07-31 2001-07-20 Государственный научный центр РФ Всероссийский научно-исследовательский институт неорганических материалов им. акад. А.А. Бочвара Твэл ядерного реактора
EP1179823B1 (en) 2000-08-01 2006-11-15 General Electric Company Nuclear fuel assembly comprising a debris catcher
FR2815035B1 (fr) 2000-10-05 2003-03-07 Commissariat Energie Atomique Procede de coprecipitation d'actinides et procede de preparation d'oxydes mixtes d'actinides
JP2002122687A (ja) 2000-10-17 2002-04-26 Toshiba Corp 原子炉炉心および原子炉運転方法
WO2002059903A1 (de) 2001-01-26 2002-08-01 Framatome Anp Gmbh Verfahren zur vermeidung von reibungsschäden an brennstäben, entsprechendes kernreaktor-brennelement, dafür verwendete mittel und entsprechender abstandhalter
JP4312969B2 (ja) 2001-03-02 2009-08-12 東京電力株式会社 使用済原子燃料の再処理方法
US6488783B1 (en) 2001-03-30 2002-12-03 Babcock & Wilcox Canada, Ltd. High temperature gaseous oxidation for passivation of austenitic alloys
US6522710B2 (en) 2001-07-03 2003-02-18 Westinghouse Electric Company Llc Fastened spacer for grid of a nuclear reactor with associated method
FR2827071B1 (fr) 2001-07-04 2003-09-05 Commissariat Energie Atomique Procede de sulfuration d'une poudre d'uo2 et procede de fabrication de pastilles de combustible nucleaire a base d'uo2 ou oxide mixte (u,pu)o2 avec addition de soufre
KR100432581B1 (ko) 2001-07-10 2004-05-24 한국수력원자력 주식회사 연료봉 접촉면적과 스프링 탄성영역을 확장하는 격자스프링이 부착된 지지격자체
TW557450B (en) 2001-07-16 2003-10-11 Toshiba Corp Fuel supporting attachment, fuel inlet mechanism, and fuel assembly
US6608880B2 (en) 2001-07-17 2003-08-19 Westinghouse Electric Co. Llc Reduced pressure drop debris filter bottom nozzle for a fuel assembly of a nuclear reactor
KR100423737B1 (ko) 2001-08-07 2004-03-22 한국수력원자력 주식회사 이중편향날개를 가진 핵연료집합체 지지격자
KR100423738B1 (ko) 2001-08-10 2004-03-22 한국수력원자력 주식회사 복합유동혼합장치를 가진 핵연료집합체 지지격자
JP4346842B2 (ja) 2001-08-15 2009-10-21 三菱重工業株式会社 Ｐｗｒ原子炉用燃料集合体の異物フィルタ
DE10146128B4 (de) 2001-09-19 2005-03-03 Framatome Anp Gmbh Brennelement für einen Druckwasserreaktor
KR100431725B1 (ko) 2001-10-29 2004-05-17 한국수력원자력 주식회사 측면 용접지지대 및 유동혼합날개를 구비하는핵연료집합체 지지격자
JP2003149369A (ja) 2001-11-08 2003-05-21 Mitsubishi Nuclear Fuel Co Ltd 燃料集合体支持格子の製造方法
JP4006678B2 (ja) 2001-12-25 2007-11-14 株式会社グローバル・ニュークリア・フュエル・ジャパン 原子燃料集合体下部タイプレートおよびその組立て方法
KR100444699B1 (ko) 2001-12-26 2004-08-21 한국수력원자력 주식회사 입술형 다목적 핵연료 지지격자체
JP3960069B2 (ja) 2002-02-13 2007-08-15 住友金属工業株式会社 Ｎｉ基合金管の熱処理方法
FR2835823B1 (fr) 2002-02-13 2004-04-09 Centre Nat Rech Scient Procede de preparation d'un produit a base de phosphate de thorium et/ou d'actinides
JP4040888B2 (ja) 2002-02-25 2008-01-30 株式会社東芝 燃料集合体
FR2837975B1 (fr) 2002-03-29 2005-08-26 Framatome Anp Grille entretoise d'un assemblage de combustible pour un reacteur nucleaire refroidi par de l'eau legere
US7087206B2 (en) 2002-04-12 2006-08-08 Pg Research Foundation Multicolumn selectivity inversion generator for production of high purity actinium for use in therapeutic nuclear medicine
US6819733B2 (en) 2002-05-15 2004-11-16 Westinghouse Electric Company Llc Fuel assembly and associated grid for nuclear reactor
FR2841367B1 (fr) 2002-06-11 2005-03-18 Framatome Anp Dispositif de positionnement et d'alignement axial d'un assemblage de combustible et procede et dispositif de reconstitution d'un element de positionnement
JP4098002B2 (ja) 2002-06-19 2008-06-11 株式会社東芝 燃料集合体群および原子炉炉心
RU2227171C1 (ru) 2002-12-23 2004-04-20 Федеральное государственное унитарное предприятие "Всероссийский научно-исследовательский институт неорганических материалов им. акад. А.А. Бочвара" Цирконий-ниобиевый кислородсодержащий сплав и способ его получения
KR100526721B1 (ko) 2003-01-29 2005-11-08 한전원자력연료 주식회사 원자력 연료 골격체를 위한 로봇 점용접 장치 및 이를이용한 점용접방법
US7192563B2 (en) 2003-03-31 2007-03-20 Secretary, Department Of Atomic Energy, Government Of India Process for recovery of high purity uranium from fertilizer grade weak phosphoric acid
KR100654961B1 (ko) * 2003-03-31 2006-12-07 한국원자력연구소 핵연료봉의 제조방법 및 이에 사용되는 빌렛
RU2246142C1 (ru) 2003-05-30 2005-02-10 Фгуп Окб "Гидропресс" Тепловыделяющая сборка ядерного реактора (варианты)
US20050069075A1 (en) 2003-06-04 2005-03-31 D.B.I. Century Fuels And Aerospace Services, Inc. Reactor tray vertical geometry with vitrified waste control
US7085340B2 (en) 2003-09-05 2006-08-01 Westinghouse Electric Co, Llc Nuclear reactor fuel assemblies
FR2860334B1 (fr) 2003-09-30 2007-12-07 Framatome Anp Assemblage de combustible nucleaire comprenant un dispositif maille de renfort et utilisation d'un tel dispositif dans un assemblage de combustible nucleaire
FR2860335B1 (fr) 2003-09-30 2007-12-07 Framatome Anp Assemblage de combustible nucleaire comprenant un dispositif interieur de renfort
KR100600983B1 (ko) 2003-10-07 2006-07-13 한국원자력연구소 경수로 원자로용 핵연료집합체의 지지격자체
RU2267175C2 (ru) 2003-10-14 2005-12-27 Федеральное государственное унитарное предприятие "Всероссийский научно-исследовательский институт неорганических материалов им. акад. А.А. Бочвара" Тепловыделяющий элемент для исследовательских реакторов и тепловыделяющая сборка на его основе (варианты)
FR2864323B1 (fr) 2003-12-22 2008-07-18 Framatome Anp Embout d'extremite d'assemblage de combustible a moyens de maintien des extremites des crayons et assemblage correspondant
US7822165B2 (en) 2004-01-05 2010-10-26 Westinghouse Electric Co Llc Nuclear fuel assembly debris filter bottom nozzle
US20050238131A1 (en) 2004-04-21 2005-10-27 Hellandbrand Patrick A Jr Grid insert for the lowermost grid in a fuel assembly
JP4022608B2 (ja) 2004-07-30 2007-12-19 独立行政法人 日本原子力研究開発機構 分留法を用いるフッ化物揮発法による再処理方法
US7889829B2 (en) 2004-09-02 2011-02-15 Westinghouse Electric Company Llc Nuclear fuel assembly protective grid
JP2006145414A (ja) * 2004-11-22 2006-06-08 Toshihisa Shirakawa スペーサ無し核燃料集合体
US7526058B2 (en) 2004-12-03 2009-04-28 General Electric Company Rod assembly for nuclear reactors
US8317035B2 (en) 2004-12-30 2012-11-27 Global Nuclear Fuel-Americas, Llc. Debris filter
US8374308B2 (en) 2005-01-11 2013-02-12 Westinghouse Electric Company Llc Helically fluted tubular fuel rod support
US20080144762A1 (en) 2005-03-04 2008-06-19 Holden Charles S Non Proliferating Thorium Nuclear Fuel Inert Metal Matrix Alloys for Fast Spectrum and Thermal Spectrum Thorium Converter Reactors
JP2006284487A (ja) 2005-04-04 2006-10-19 Nuclear Fuel Ind Ltd 金属燃料製造用モールド及び該モールドを用いた金属燃料の製造法
US20060233685A1 (en) 2005-04-15 2006-10-19 Janes Clarence W Non-aqueous method for separating chemical constituents in spent nuclear reactor fuel
US20060251205A1 (en) 2005-05-02 2006-11-09 Westinghouse Electric Co. Llc In-core fuel restraint assembly
US7412021B2 (en) 2005-07-26 2008-08-12 Westinghouse Electric Co Llc Advanced gray rod control assembly
RU2294570C1 (ru) 2005-12-05 2007-02-27 Открытое акционерное общество "Машиностроительный завод" Тепловыделяющая сборка ядерного реактора
US8594269B2 (en) 2006-01-13 2013-11-26 Westinghouse Electric Company Llc Nuclear fuel assemblies with structural support replacement rods
JP4422690B2 (ja) 2006-02-28 2010-02-24 日立Ｇｅニュークリア・エナジー株式会社 自然循環式沸騰水型原子炉
US20070206717A1 (en) 2006-03-02 2007-09-06 Westinghouse Electric Company Llc Multiple and variably-spaced intermediate flow mixing vane grids for fuel assembly
US7548602B2 (en) 2006-03-09 2009-06-16 Westinghouse Electric Co. Llc Spacer grid with mixing vanes and nuclear fuel assembly employing the same
KR20070102001A (ko) 2006-04-13 2007-10-18 한국원자력연구원 연료봉과 등각 접촉면적을 증가시키는 지지격자 스프링
KR100804406B1 (ko) 2006-07-15 2008-02-15 한국원자력연구원 이중 냉각 핵연료봉의 상, 하부 봉단마개
US8019038B2 (en) 2006-11-21 2011-09-13 Advanced Engineered Products Incorporated Steam generator nozzle dam and method for installing and removing steam generator nozzle dam
CN1945751B (zh) 2006-11-21 2010-05-12 中国原子能科学研究院 加速器驱动的快-热耦合次临界反应堆
US7577230B2 (en) 2006-12-22 2009-08-18 Global Nuclear Fuel-Americas, Llc Fuel support and method for modifying coolant flow in a nuclear reactor
US7672418B2 (en) 2006-12-22 2010-03-02 Global Nuclear Fuel-Americas, Llc Control rod guide tube and method for providing coolant to a nuclear reactor fuel assembly
JP4812793B2 (ja) 2007-12-13 2011-11-09 日立Ｇｅニュークリア・エナジー株式会社 燃料集合体
US8116423B2 (en) 2007-12-26 2012-02-14 Thorium Power, Inc. Nuclear reactor (alternatives), fuel assembly of seed-blanket subassemblies for nuclear reactor (alternatives), and fuel element for fuel assembly
CA2710432C (en) 2007-12-26 2016-04-26 Thorium Power, Inc. Nuclear reactor, fuel assembly consisting of driver-breeding modules for a nuclear reactor and a fuel cell for a fuel assembly
JP2008170454A (ja) 2008-03-24 2008-07-24 Nuclear Fuel Ind Ltd 加圧水型原子炉用ｍｏｘ燃料集合体
CN101299351B (zh) 2008-06-27 2011-09-07 张育曼 水冷双区增殖核反应堆堆芯及采用该堆芯的核反应堆
RU2389089C1 (ru) * 2008-08-08 2010-05-10 Открытое акционерное общество "Высокотехнологический научно-исследовательский институт неорганических материалов имени академика А.А.Бочвара" Тепловыделяющий элемент для ядерных реакторов (варианты) и способ его изготовления (варианты)
AU2008365658B2 (en) 2008-12-25 2015-05-21 Thorium Power Inc. Fuel assembly for a light-water nuclear reactor (embodiments), light-water nuclear reactor and fuel element of the fuel assembly
WO2011143172A1 (en) 2010-05-11 2011-11-17 Thorium Power, Inc. Fuel assembly with metal fuel alloy kernel and method of manufacturing thereof
US10192644B2 (en) 2010-05-11 2019-01-29 Lightbridge Corporation Fuel assembly
CN102543224B (zh) 2010-12-14 2014-06-11 中国核动力研究设计院 用铀氢化锆燃料元件的动力堆
FI20115865A0 (fi) 2011-09-02 2011-09-02 Short Rest Solutions Oy Istuin julkisia tiloja varten
US9196387B2 (en) 2011-11-03 2015-11-24 Atomic Energy Of Canada Limited Apparatus and method for detecting position of annulus spacer between concentric tubes
JP6557184B2 (ja) 2016-06-28 2019-08-07 日本電信電話株式会社 機能拡張システム、機能拡張方法および機能拡張プログラム
JP6374444B2 (ja) 2016-06-28 2018-08-15 京楽産業．株式会社 遊技機
JP2018001962A (ja) 2016-07-01 2018-01-11 本田技研工業株式会社 車両制御装置
JP6711188B2 (ja) 2016-07-15 2020-06-17 東ソー株式会社 サプレッサーを切り替えるイオンクロマトグラフ
JP6476266B2 (ja) 2017-11-08 2019-02-27 株式会社篠原 キャップ脱落防止部材、それを備える化粧ブラシ用容器、および、収容容器を備える化粧用ブラシ

Also Published As

Publication number Publication date
US20240055144A1 (en) 2024-02-15
US10991473B2 (en) 2021-04-27
KR20190128756A (ko) 2019-11-18
EP2569776B1 (en) 2016-04-06
KR101775023B1 (ko) 2017-09-05
AU2011250906B2 (en) 2015-03-19
EA023017B1 (ru) 2016-04-29
EP2569776A1 (en) 2013-03-20
JP2016224068A (ja) 2016-12-28
JP6000403B2 (ja) 2016-09-28
HUE029598T2 (en) 2017-03-28
CA2985909C (en) 2020-04-28
CN102947890B (zh) 2016-05-18
JP6001530B2 (ja) 2016-10-05
KR102165560B9 (ko) 2022-06-07
HUE035511T2 (en) 2018-05-02
CA2798539C (en) 2021-12-07
US20210398700A1 (en) 2021-12-23
US20210398701A1 (en) 2021-12-23
JP2015166742A (ja) 2015-09-24
WO2011143293A1 (en) 2011-11-17
JP2013526709A (ja) 2013-06-24
AU2011250906A1 (en) 2012-11-22
CA2798539A1 (en) 2011-11-17
EP3038112A1 (en) 2016-06-29
CA2985909A1 (en) 2011-11-17
CN105895178A (zh) 2016-08-24
KR102045938B1 (ko) 2019-11-18
US11837371B2 (en) 2023-12-05
KR20170103035A (ko) 2017-09-12
US20180254111A1 (en) 2018-09-06
US20130322591A1 (en) 2013-12-05
WO2011143172A1 (en) 2011-11-17
US20230282379A9 (en) 2023-09-07
ES2647155T3 (es) 2017-12-19
KR20130080436A (ko) 2013-07-12
US11862353B2 (en) 2024-01-02
KR102165560B1 (ko) 2020-10-15
US10037823B2 (en) 2018-07-31
US20230335305A9 (en) 2023-10-19
EP3038112B1 (en) 2017-10-25
JP6319916B2 (ja) 2018-05-09
CN105895178B (zh) 2018-03-27
CN102947890A (zh) 2013-02-27

Similar Documents

Publication Publication Date Title
EA201201481A1 (ru) Топливная сборка
EA201100729A1 (ru) Топливная сборка легководного ядерного реактора (варианты), легководный ядерный реактор и топливный элемент топливной сборки
RU2012127788A (ru) Топливный стержень и способ изготовления таблеток для такого стержня
EA200802041A1 (ru) Ядерный реактор (варианты), топливная сборка из запально-воспроизводящих модулей для ядерного реактора (варианты) и топливный элемент топливной сборки
EA202091297A1 (ru) Кольцевое металлическое ядерное топливо и способы его изготовления
Alam et al. Lattice design and coolant selection for A 333 MWTH PWR Civil marine propulsion core using thorium-based checkerboard micro-heterogeneous fuel
Mi et al. Safety properties of sodium-cooled fast reactors
Dalle et al. Enriched gadolinium burnable poison for PWR fuel–Monte Carlo burnup simulations of reactivity
Alam et al. Analysis and design of a 333 mwth marine pwr core using mixed d2o-h2o coolant and thorium-based checkerboard micro-heterogeneous and all-uranium fuel
UA109437C2 (xx) Паливна збірка
KR101221569B1 (ko) 금속토륨을 이용한 증식용 혼합 핵연료
Alam et al. Reactor physics assessment of candidate accident-tolerant cladding concepts for long-life civil nuclear marine propulsion cores
RU2012153208A (ru) Топливная композиция для водоохлаждаемых реакторов аэс на тепловых нейтронах
RU2535935C2 (ru) Тепловыделяющий элемент исследовательского реактора
Adamov et al. Developments and tendencies in fission reactor concepts
Kim et al. Performance Analysis of 400MWe Sodium Cooled Fast Reactor Cores using Thick Duct Assembly for TRU burning
Diakov On Conversion of Research Reactors in Russia
Shadrin et al. Reprocessing of fast reactors mixed U-Pu used nuclear fuel: Studies and industrial test
Noh et al. Alternative cores for a multipurpose experimental sodium-cooled fast reactor with U-ZR fuel
YAYLI Production of annular and compact type burnable absorber nuclear fuel pellets by powder metallurgy and sol gel route
Abdelrazek et al. Investigation of the Capability of REALP5 to Solve Complex Fuel Geometry
Zahrádka et al. Cost Saving When Using Enhanced Conductivity Nuclear Fuel Containing BeO in WWER-1000 Reactors
Fiorina et al. Safety Aspects of Thorium Fuel in Sodium-Cooled Fast Reactors
Gilev Extending the service life of Russian NPPs
Gagarinskiy et al. VVER-440 fuel cycle improvement: status and prospects

Legal Events

Date Code Title Description
MM4A Lapse of a eurasian patent due to non-payment of renewal fees within the time limit in the following designated state(s)

Designated state(s): AM AZ KG MD TJ TM