JPS54150582A - Fuel assembly - Google Patents

Fuel assembly

Info

Publication number
JPS54150582A
JPS54150582A JP5875578A JP5875578A JPS54150582A JP S54150582 A JPS54150582 A JP S54150582A JP 5875578 A JP5875578 A JP 5875578A JP 5875578 A JP5875578 A JP 5875578A JP S54150582 A JPS54150582 A JP S54150582A
Authority
JP
Japan
Prior art keywords
layer part
gadolinia
inner layer
fuel
constitution
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.)
Granted
Application number
JP5875578A
Other languages
Japanese (ja)
Other versions
JPS6017073B2 (en
Inventor
Hiroshi Mizuta
Koichi Sakurada
Yasushi Kawamura
Jiro Otsuji
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.)
Toshiba Corp
Nippon Atomic Industry Group Co Ltd
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
Nippon Atomic Industry Group Co Ltd
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
Application filed by Toshiba Corp, Tokyo Shibaura Electric Co Ltd, Nippon Atomic Industry Group Co Ltd filed Critical Toshiba Corp
Priority to JP53058755A priority Critical patent/JPS6017073B2/en
Publication of JPS54150582A publication Critical patent/JPS54150582A/en
Publication of JPS6017073B2 publication Critical patent/JPS6017073B2/en
Expired legal-status Critical Current

Links

Classifications

    • 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

Abstract

PURPOSE: To lower the peaking of infinite multiplication factor of the fuel assembly, by making a constitution of burnable poisoned fuel pellet into a pattern of layer- built manner, with its inner layer part mixed by a gadolinia with its outer layer part by a gadolinia of density lower than that for the inner layer part.
CONSTITUTION: The constitution of a burnable poisoned fuel pellet 1 of a fuel rod 10 is made into a pattern of layer-built manner, and to its column-shape inner layer part 22 is mixed a gadolinia and to its circular ring-shape outer layer part 21 is mixed a gadolinia of density lower than that for the inner layer part 22. The fuel pellet 1 is filled into a clad tube 2 to constitute the fuel rod 10. With the fuel assembly, including said fuel rod, used for the reactor, a fissile material in the outer layer part 21 decreases as a burn-up progresses, and a neutron absorptive effect is increased by the gadolinia in the inner layer part 22, capable of lowering the peaking of infinite multiplication factor in case of the gadolinia being lost after burn-up.
COPYRIGHT: (C)1979,JPO&Japio
JP53058755A 1978-05-19 1978-05-19 fuel assembly Expired JPS6017073B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53058755A JPS6017073B2 (en) 1978-05-19 1978-05-19 fuel assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53058755A JPS6017073B2 (en) 1978-05-19 1978-05-19 fuel assembly

Publications (2)

Publication Number Publication Date
JPS54150582A true JPS54150582A (en) 1979-11-26
JPS6017073B2 JPS6017073B2 (en) 1985-04-30

Family

ID=13093344

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53058755A Expired JPS6017073B2 (en) 1978-05-19 1978-05-19 fuel assembly

Country Status (1)

Country Link
JP (1) JPS6017073B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4526741A (en) * 1983-06-10 1985-07-02 The United States Of America As Represented By The United States Department Of Energy Fuel assembly for the production of tritium in light water reactors
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
US4678629A (en) * 1985-09-05 1987-07-07 Westinghouse Electric Corp. Nuclear fuel pellet containing gadolinia

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4708845A (en) * 1985-10-18 1987-11-24 Westinghouse Electric Corp. BWR fuel assembly with improved spacer and fuel bundle design for enhanced thermal-hydraulic performance

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4526741A (en) * 1983-06-10 1985-07-02 The United States Of America As Represented By The United States Department Of Energy Fuel assembly for the production of tritium in light water reactors
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
US4678629A (en) * 1985-09-05 1987-07-07 Westinghouse Electric Corp. Nuclear fuel pellet containing gadolinia

Also Published As

Publication number Publication date
JPS6017073B2 (en) 1985-04-30

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