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Title:
【発明の名称】燃料チャンネルボックスの製造法及び燃料集合体の製造法並びに使用方法
Document Type and Number:
Japanese Patent JP3082369
Kind Code:
B2
Abstract:
A method of operating a nuclear reactor having within a reactor core a plurality of nuclear fuel channel boxes (1) each formed of a tubular member made of a zirconium based alloy, comprising the steps of exchanging fuel (11) after a predetermined period of operation time, which fuel is disposed in the channel boxes (1), and subsequently operating the reactor in a predetermined period of time, said alloy containing hexagonal crystals having a strain occurring due to neutron irradiation of 0.5 x 10<2><2> n/cm<2> growth being not more than 2.5 x 10<-><4>, an operation of said reactor after the degree of burn-up on taking-out reached 32 GWd/t or after nuclear fuel (11) was exchanged being effected, while the channel boxes (1) are located at the same positions as those in a previous operation and while the nuclear fuel (11) is exchanged at least two times. Further disclosed is a method of manufacturing said nuclear fuel channel boxes (1).

Inventors:
Masatoshi Inagaki
Masayoshi Sugano
Iwao Takase
Toshitaka Kida
Noriyuki Ohnaka
Hideaki Ishizaki
Hiromasa Hirakawa
Hideo Maki
Application Number:
JP31429491A
Publication Date:
August 28, 2000
Filing Date:
November 28, 1991
Export Citation:
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Assignee:
株式会社日立製作所
International Classes:
C22C16/00; C22F1/00; C22F1/18; G21C3/07; G21C3/30; G21C3/324; (IPC1-7): C22F1/18; C22C16/00; G21C3/30; G21C3/324
Domestic Patent References:
JP5132412A
JP62297449A
JP59229475A
JP62290837A
JP62207835A
JP62290854A
Attorney, Agent or Firm:
Yasuo Sakuta