Segmented fuel and moderator rod

Details Segmented fuel and moderator rod Segmented fuel and moderator rod

1984-09-26

1987-05-12

Walsh, Donald P.

Induced nuclear reactions: processes, systems, and elements

Fuel component structure

Encased with nonfuel component

376420, 376424, 376435, 376443, 376444, 376456, G21C 332

Patent

active

046648828

ABSTRACT:
A segmented fuel and moderator rod and fuel assembly for a BWR. The segmented rod has a lower fuel region and an upper moderator region for passing coolant having a void fraction of between about 0-20% through the upper portion of the BWR core which is normally undermoderated. The segmented rod displaces one or more conventional fuel rods in the fuel bundle. A method of moderating a BWR core is also disclosed.

REFERENCES:
patent: 3274067 (1966-09-01), Greebler et al.
patent: 3350275 (1967-10-01), Venier et al.
patent: 3396078 (1968-08-01), Visner
patent: 3466226 (1969-09-01), Lass
patent: 3799839 (1974-03-01), Fischer et al.
patent: 3802995 (1974-04-01), Fritz et al.
patent: 4089742 (1978-05-01), Amaral
patent: 4326922 (1982-04-01), Farrari
patent: 4591479 (1986-05-01), Weitzberg
MND-M-1853(Add I), pp. III-13 through III-30, 1961.

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