Fuel assembly for nuclear reactor

Details Fuel assembly for nuclear reactor Fuel assembly for nuclear reactor

1988-07-15

1991-11-26

Stoll, Robert L.

Induced nuclear reactions: processes, systems, and elements

Fuel component structure

Plural fuel segments or elements

376172, 376173, 376417, 376435, 376443, G21C 330

Patent

active

050680820

ABSTRACT:
A fuel assembly for a nuclear reactor includes a number of fuel rods filled with a fuel material. A plurality of fuel rods have a partial effective fuel area filled with a fuel material and has a portion in which enrichment of a fissile nuclide is significantly reduced or the fissile nuclide does not exist at all on an axial level including a reactor shut-down zone at which subcriticality becomes small during a reactor operation period. The other fuel rods are filled with the fuel material throughout the entire axial length thereof. The first mentioned fuel rod may be provided with a partially interposed zone or may be constructed by a fuel rod having a length shorter than that of the other fuel rod. The tube means may be arranged in the fuel assembly so as to pass the moderator therethrough.

REFERENCES:
patent: 4096033 (1978-06-01), Barry
patent: 4231976 (1980-11-01), Bischoff et al.
patent: 4362691 (1982-12-01), Lang et al.
patent: 4765943 (1988-09-01), DeLorenzo et al.
patent: 4783311 (1988-11-01), Ferrari
patent: 4968479 (1990-11-01), Ogiya et al.
patent: 4968479 (1990-11-01), Ogiya et al.
patent: 4970047 (1990-11-01), Ueda et al.

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