EP2497090A4 - Systems and methods for controlling reactivity in a nuclear fission reactor - Google Patents

Systems and methods for controlling reactivity in a nuclear fission reactor

Info

Publication number
EP2497090A4
EP2497090A4 EP10844849.9A EP10844849A EP2497090A4 EP 2497090 A4 EP2497090 A4 EP 2497090A4 EP 10844849 A EP10844849 A EP 10844849A EP 2497090 A4 EP2497090 A4 EP 2497090A4
Authority
EP
European Patent Office
Prior art keywords
systems
methods
nuclear fission
fission reactor
controlling reactivity
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP10844849.9A
Other languages
German (de)
French (fr)
Other versions
EP2497090A2 (en
Inventor
Charles E Ahlfeld
Ehud Greenspan
Roderick A Hyde
Nathan P Myhrvold
Robert R Richardson
Joshua C Walter
Kevan D Weaver
Thomas A Weaver
Lowell L Wood Jr
George B Zimmerman
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TerraPower LLC
Original Assignee
TerraPower LLC
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
Priority claimed from US12/590,447 external-priority patent/US9190177B2/en
Priority claimed from US12/657,734 external-priority patent/US9852818B2/en
Priority claimed from US12/657,736 external-priority patent/US9793013B2/en
Application filed by TerraPower LLC filed Critical TerraPower LLC
Publication of EP2497090A2 publication Critical patent/EP2497090A2/en
Publication of EP2497090A4 publication Critical patent/EP2497090A4/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C7/00—Control of nuclear reaction
    • G21C7/06—Control of nuclear reaction by application of neutron-absorbing material, i.e. material with absorption cross-section very much in excess of reflection cross-section
    • G21C7/08—Control of nuclear reaction by application of neutron-absorbing material, i.e. material with absorption cross-section very much in excess of reflection cross-section by displacement of solid control elements, e.g. control rods
    • G21C7/10—Construction of control elements
    • G21C7/103—Control assemblies containing one or more absorbants as well as other elements, e.g. fuel or moderator elements
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C7/00—Control of nuclear reaction
    • G21C7/06—Control of nuclear reaction by application of neutron-absorbing material, i.e. material with absorption cross-section very much in excess of reflection cross-section
    • G21C7/08—Control of nuclear reaction by application of neutron-absorbing material, i.e. material with absorption cross-section very much in excess of reflection cross-section by displacement of solid control elements, e.g. control rods
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C1/00—Reactor types
    • G21C1/02—Fast fission reactors, i.e. reactors not using a moderator ; Metal cooled reactors; Fast breeders
    • G21C1/022—Fast fission reactors, i.e. reactors not using a moderator ; Metal cooled reactors; Fast breeders characterised by the design or properties of the core
    • G21C1/024—Fast fission reactors, i.e. reactors not using a moderator ; Metal cooled reactors; Fast breeders characterised by the design or properties of the core where the core is divided in zones with fuel and zones with breeding material
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C1/00—Reactor types
    • G21C1/02—Fast fission reactors, i.e. reactors not using a moderator ; Metal cooled reactors; Fast breeders
    • G21C1/022—Fast fission reactors, i.e. reactors not using a moderator ; Metal cooled reactors; Fast breeders characterised by the design or properties of the core
    • G21C1/026—Reactors not needing refuelling, i.e. reactors of the type breed-and-burn, e.g. travelling or deflagration wave reactors or seed-blanket reactors
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C17/00—Monitoring; Testing ; Maintaining
    • G21C17/10—Structural combination of fuel element, control rod, reactor core, or moderator structure with sensitive instruments, e.g. for measuring radioactivity, strain
    • G21C17/12—Sensitive element forming part of control element
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C7/00—Control of nuclear reaction
    • G21C7/06—Control of nuclear reaction by application of neutron-absorbing material, i.e. material with absorption cross-section very much in excess of reflection cross-section
    • G21C7/24—Selection of substances for use as neutron-absorbing material
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21D—NUCLEAR POWER PLANT
    • G21D3/00—Control of nuclear power plant
    • 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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Monitoring And Testing Of Nuclear Reactors (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
EP10844849.9A 2009-11-06 2010-11-05 Systems and methods for controlling reactivity in a nuclear fission reactor Withdrawn EP2497090A4 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US12/590,447 US9190177B2 (en) 2009-11-06 2009-11-06 Systems and methods for controlling reactivity in a nuclear fission reactor
US12/657,734 US9852818B2 (en) 2009-11-06 2010-01-25 Systems and methods for controlling reactivity in a nuclear fission reactor
US12/657,736 US9793013B2 (en) 2009-11-06 2010-01-25 Systems and methods for controlling reactivity in a nuclear fission reactor
PCT/US2010/002908 WO2011093843A2 (en) 2009-11-06 2010-11-05 Systems and methods for controlling reactivity in a nuclear fission reactor

Publications (2)

Publication Number Publication Date
EP2497090A2 EP2497090A2 (en) 2012-09-12
EP2497090A4 true EP2497090A4 (en) 2014-12-17

Family

ID=44320024

Family Applications (3)

Application Number Title Priority Date Filing Date
EP10844846A Withdrawn EP2499643A2 (en) 2009-11-06 2010-11-05 Systems and methods for controlling reactivity in a nuclear fission reactor
EP10844850.7A Not-in-force EP2497086B1 (en) 2009-11-06 2010-11-05 Systems and methods for controlling reactivity in a nuclear fission reactor
EP10844849.9A Withdrawn EP2497090A4 (en) 2009-11-06 2010-11-05 Systems and methods for controlling reactivity in a nuclear fission reactor

Family Applications Before (2)

Application Number Title Priority Date Filing Date
EP10844846A Withdrawn EP2499643A2 (en) 2009-11-06 2010-11-05 Systems and methods for controlling reactivity in a nuclear fission reactor
EP10844850.7A Not-in-force EP2497086B1 (en) 2009-11-06 2010-11-05 Systems and methods for controlling reactivity in a nuclear fission reactor

Country Status (6)

Country Link
EP (3) EP2499643A2 (en)
JP (3) JP6037835B2 (en)
KR (3) KR20120087166A (en)
CN (3) CN102725800B (en)
RU (3) RU2555363C9 (en)
WO (3) WO2011093840A2 (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101216608B1 (en) * 2012-02-13 2012-12-31 유저스(주) Method and system for calculating online digital reactivity using field programmable gate array
KR101406849B1 (en) * 2012-12-27 2014-06-13 한국전력기술 주식회사 Evaluation methodology for the measurement of control rod insertion time
CN103177154B (en) * 2013-02-05 2015-02-25 西安交通大学 Method for acquiring nuclear fuel assembly resonance parameters
CN104916337B (en) * 2014-03-14 2017-11-24 江苏核电有限公司 A kind of data processing method of control rod calculus value measurement experiment
CN104064228B (en) * 2014-05-16 2016-03-23 中国核动力研究设计院 Row Bo Dui heap area and row Bo Dui heap area manufacture method
CN105336382B (en) * 2014-08-15 2017-12-12 中国广核集团有限公司 Nuclear power station dynamic carves rod field conduct method
EP3241216B1 (en) 2014-12-31 2020-03-04 TerraPower LLC Flux-shifting reactivity control system
DK3469341T3 (en) * 2016-06-09 2021-06-07 Phoenix Llc System and method for performing active scanning of a nuclear fuel rod
RU2668546C2 (en) * 2016-11-15 2018-10-02 Объединенный Институт Ядерных Исследований Method for changing reactivity in pulsed nuclear power plants of periodic action on fast neutrons with threshold-fissionable isotopes
CN108053892B (en) * 2017-12-08 2019-07-16 中国核动力研究设计院 A kind of naval reactor reactivity control method
CN108806803B (en) * 2018-06-07 2021-08-27 三峡大学 Solid-liquid mixed fuel reactor core
CN109192341B (en) * 2018-09-13 2020-01-14 中国核动力研究设计院 Large reactivity measurement method based on three-dimensional space-time dynamics
RU2699251C1 (en) * 2018-12-10 2019-09-04 Федеральное государственное унитарное предприятие "Научно-исследовательский технологический институт имени А.П. Александрова" Reactivity calibrator verification method
EP3977487B1 (en) * 2019-05-30 2023-05-24 Westinghouse Electric Company Llc System and method to determine reactivity
GB202014182D0 (en) * 2020-09-09 2020-10-21 Scott Ian Richard Nuclear reactor passive reactivity control system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4770840A (en) * 1984-05-30 1988-09-13 Framatome Spectral shift light water nuclear reactor
US20080123794A1 (en) * 2006-11-29 2008-05-29 Global Nuclear Fuel-Americas, Llc Systems and methods of predicting a critical effective k for a nuclear reactor
US20090080585A1 (en) * 2007-09-26 2009-03-26 Yousef Farawila Reduced Order Stress Model for Online Maneuvering, Diagnostics of Fuel Failure and Design of Core Loading Patterns of Light Water Reactors
US20090252273A1 (en) * 2006-11-28 2009-10-08 John Rogers Gilleland Automated nuclear power reactor for long-term operation

Family Cites Families (66)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3219535A (en) * 1964-12-15 1965-11-23 Thomas R Robbins Nuclear reactor control means
US3285821A (en) * 1965-09-16 1966-11-15 James E Brubaker Nuclear fuel module
US3335060A (en) * 1965-09-20 1967-08-08 Richard L Diener Seed-blanket neutronic reactor
JPS5034191B1 (en) * 1968-04-17 1975-11-06
US3748230A (en) * 1968-08-20 1973-07-24 Comitato Nazionale Per I En Nu Fuel element for fast reactors with a device for exhausting the fission gases therefrom
US3849248A (en) * 1969-02-14 1974-11-19 Gen Electric Samarium compensation for nuclear reactor fuel
JPS497440Y1 (en) * 1969-07-18 1974-02-21
FR2286472A1 (en) * 1974-09-30 1976-04-23 Commissariat Energie Atomique CORE OF A FAST NEUTRON NUCLEAR REACTOR
SU555740A1 (en) * 1975-04-22 1984-11-15 Предприятие П/Я А-7755 Nuclear reactor emergency protection system
JPS5247196A (en) * 1975-10-13 1977-04-14 Mitsubishi Atom Power Ind Inc Vent mechanism
CA1063338A (en) * 1976-03-12 1979-10-02 Canadian General Electric Company Limited Method of fabricating nuclear fuel
JPS5359097U (en) * 1976-10-22 1978-05-19
JPS5356495A (en) * 1976-10-29 1978-05-22 Hitachi Ltd Neutron measurement unit within reactor
US4229654A (en) * 1978-08-07 1980-10-21 General Electric Company Determining fissile content of nuclear fuel elements
JPS5697897A (en) * 1980-01-07 1981-08-06 Hitachi Ltd Control rod
US4716006A (en) * 1980-12-16 1987-12-29 Westinghouse Electric Corp. Spectral shift reactor control method
JPS5934189A (en) * 1982-08-20 1984-02-24 株式会社東芝 Fast breeder
JPS5984184A (en) * 1982-11-05 1984-05-15 株式会社日立製作所 Fuel assembly for bwr type reactor
JPS603585A (en) * 1983-06-22 1985-01-09 株式会社日立製作所 Fast breeder reactor
FR2592516B2 (en) * 1985-12-30 1989-08-18 Framatome Sa METHOD FOR OPERATING A NUCLEAR REACTOR AND SPECTRUM VARIATION NUCLEAR REACTOR USING WATER DISPLACEMENT CLUSTERS
US4609522A (en) * 1984-02-03 1986-09-02 Westinghouse Electric Corp. Mechanical drive system for moving fuel
US4668468A (en) * 1984-06-01 1987-05-26 Electric Power Research Institute, Inc. Reactivity control of nuclear fuel pellets by volumetric redistribution of fissile, fertile and burnable poison material
JPH0656426B2 (en) * 1984-10-12 1994-07-27 株式会社日立製作所 Fast breeder reactor
US4717528A (en) * 1985-02-19 1988-01-05 Westinghouse Electric Corp. Control rod control system
JPH0664169B2 (en) * 1986-02-27 1994-08-22 株式会社日立製作所 Reactor control rod
US4711753A (en) * 1986-03-19 1987-12-08 Westinghouse Electric Corp. Calibration of a nuclear reactor core parameter predictor
JPH0652316B2 (en) * 1986-05-27 1994-07-06 株式会社東芝 Control rod life prediction device
JPH06105313B2 (en) * 1987-09-22 1994-12-21 動力炉・核燃料開発事業団 Core instrumentation for fast breeder reactor
JPH01129192A (en) * 1987-11-16 1989-05-22 Hitachi Ltd Control rod
SE505354C2 (en) * 1988-02-09 1997-08-11 Toshiba Kk Nuclear reactor guide blades
JP2544437B2 (en) * 1988-04-15 1996-10-16 株式会社日立製作所 Control rod
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
US4941158A (en) * 1989-03-30 1990-07-10 The Babcock & Wilcox Company Nuclear reactivity control configuration
US5011649A (en) * 1989-12-15 1991-04-30 Ginsberg Arthur P Calibration of rod position indicators
US5112565A (en) * 1990-01-03 1992-05-12 Ball Russell M Nuclear reactor multi-state digital control using digital topology
JPH04254791A (en) * 1991-02-06 1992-09-10 Toshiba Corp Fast breeder reactor
JPH04264292A (en) * 1991-02-18 1992-09-21 Hitachi Ltd Control rod with fuel follower, method and apparatus for driving control rod, nuclear power plant and method of controlling operation of reactor
JPH04299287A (en) * 1991-03-28 1992-10-22 Toshiba Corp Core for fast reactor
US5349541A (en) * 1992-01-23 1994-09-20 Electric Power Research Institute, Inc. Method and apparatus utilizing neural networks to predict a specified signal value within a multi-element system
HUT68211A (en) * 1992-02-04 1995-06-28 Radkowsky Thorium Power Corp Nonproliferative light water nuclear reactor with economic use of thorium
WO1996018195A2 (en) * 1994-12-08 1996-06-13 Siemens Aktiengesellschaft System and process for controlling control rods in a nuclear power plant
RU2101788C1 (en) * 1996-11-06 1998-01-10 Государственное предприятие Московский завод полиметаллов Control rod of water-cooled pressurized-vessel reactor
JPH10288688A (en) * 1997-04-15 1998-10-27 Toshiba Corp Control rod for reactor
JPH10300877A (en) * 1997-04-24 1998-11-13 Toshiba Corp Fuel assembly for light water reactor
US6047037A (en) * 1997-05-19 2000-04-04 Combustion Engineering, Inc. Multi-lift tool and method for moving control rods in a nuclear reactor
JPH11101890A (en) * 1997-09-26 1999-04-13 Toshiba Corp Output-monitoring device in reactor
JP3370274B2 (en) * 1998-05-22 2003-01-27 株式会社日立製作所 Thermal limit monitor
JP2000019282A (en) * 1998-06-30 2000-01-21 Toshiba Corp Fuel assembly for light-water reactor
JP2000162374A (en) * 1998-11-26 2000-06-16 Hitachi Ltd Method for neutron irradiation dose and device of core performance calculation
ZA992246B (en) * 1999-03-23 1999-12-29 Forschungszentrum Juelich Gmbh Reactor, control system and method.
ZA992247B (en) * 1999-03-23 2001-01-31 Forschungszentrum Juelich Gmbh Reactor system and control method and means.
JP2001033578A (en) * 1999-07-22 2001-02-09 Toshiba Corp Control rod monitoring control system and recording medium storing program
JP2002122687A (en) * 2000-10-17 2002-04-26 Toshiba Corp Nuclear reactor core and method of operating nuclear reactor
US7139351B2 (en) * 2001-03-29 2006-11-21 Pebble Bed Modular Reactor (Proprietary) Limited Method of and control system for controlling a nuclear reactor outlet temperature
RU2202131C1 (en) * 2002-01-29 2003-04-10 Государственное предприятие "Московский завод полиметаллов" Fast-reactor absorbing element
US7693249B2 (en) * 2003-01-31 2010-04-06 Global Nuclear Fuel - Americas, Llc Method of improving nuclear reactor performance
RU2231142C1 (en) * 2003-07-22 2004-06-20 Государственное предприятие "Московский завод полиметаллов" Fast reactor control element
JP2005061951A (en) * 2003-08-11 2005-03-10 Toshiba Corp Control rod withdrawal monitor
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
US7512207B2 (en) * 2005-04-12 2009-03-31 General Electric Company Apparatus for delivering a tool into a submerged bore
JP2007064635A (en) * 2005-08-29 2007-03-15 Toshiba Corp Monitoring device and monitoring method for nuclear reactor state
RU2330338C2 (en) * 2006-08-29 2008-07-27 Федеральное государственное унитарное предприятие "Сибирский химический комбинат" Device for emergency protection of nucleus reactor
US20080123797A1 (en) * 2006-11-28 2008-05-29 Searete Llc, A Limited Liability Corporation Of The State Of Delaware Automated nuclear power reactor for long-term operation
US20080123795A1 (en) * 2006-11-28 2008-05-29 Searete Llc, A Limited Liability Corporation Of The State Of Delaware Controllable long term operation of a nuclear reactor
US20090034674A1 (en) * 2007-07-30 2009-02-05 Burger Joseph M Nuclear reactor control rod
US9721679B2 (en) * 2008-04-08 2017-08-01 Terrapower, Llc Nuclear fission reactor fuel assembly adapted to permit expansion of the nuclear fuel contained therein

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4770840A (en) * 1984-05-30 1988-09-13 Framatome Spectral shift light water nuclear reactor
US20090252273A1 (en) * 2006-11-28 2009-10-08 John Rogers Gilleland Automated nuclear power reactor for long-term operation
US20080123794A1 (en) * 2006-11-29 2008-05-29 Global Nuclear Fuel-Americas, Llc Systems and methods of predicting a critical effective k for a nuclear reactor
US20090080585A1 (en) * 2007-09-26 2009-03-26 Yousef Farawila Reduced Order Stress Model for Online Maneuvering, Diagnostics of Fuel Failure and Design of Core Loading Patterns of Light Water Reactors

Also Published As

Publication number Publication date
WO2011093840A2 (en) 2011-08-04
JP6037835B2 (en) 2016-12-07
KR20120087166A (en) 2012-08-06
JP6026886B2 (en) 2016-11-16
RU2553979C2 (en) 2015-06-20
JP2013510308A (en) 2013-03-21
RU2012120921A (en) 2013-12-20
EP2497090A2 (en) 2012-09-12
EP2497086A4 (en) 2014-12-17
CN102714063B (en) 2016-06-22
WO2011093840A3 (en) 2011-11-10
CN102714065A (en) 2012-10-03
RU2555363C9 (en) 2015-10-20
KR20120093331A (en) 2012-08-22
WO2011093844A3 (en) 2011-10-20
EP2497086B1 (en) 2017-03-22
RU2555363C2 (en) 2015-07-10
RU2012120922A (en) 2013-12-20
RU2012120914A (en) 2013-12-20
WO2011093844A2 (en) 2011-08-04
EP2499643A2 (en) 2012-09-19
EP2497086A2 (en) 2012-09-12
WO2011093840A4 (en) 2012-01-26
JP2013510311A (en) 2013-03-21
CN102714065B (en) 2016-08-24
RU2553468C2 (en) 2015-06-20
CN102725800A (en) 2012-10-10
KR20120083513A (en) 2012-07-25
CN102714063A (en) 2012-10-03
JP6071555B2 (en) 2017-02-01
WO2011093843A3 (en) 2011-10-20
RU2553979C9 (en) 2015-10-10
WO2011093843A2 (en) 2011-08-04
JP2013510312A (en) 2013-03-21
CN102725800B (en) 2016-06-01

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