Fuel assembly with square cross section for water-cooled nuclear

Details Fuel assembly with square cross section for water-cooled nuclear Fuel assembly with square cross section for water-cooled nuclear

1984-03-14

1986-12-30

Walsh, Donald P.

Induced nuclear reactions: processes, systems, and elements

Fuel component structure

Plural fuel segments or elements

376440, 376444, 376447, 376448, G21C 332

Patent

active

046328050

ABSTRACT:
A fuel assembly with a square cross section for water-cooled nuclear reactors, the fuel assembly having fuel rods disposed in a square array prescribed by spacers defining square grid meshes includes rods without fuel disposed, instead of the respective fuel rods, at individual positions of the square array distant from the marginal edge of the fuel-assembly cross section, for varying moderation ratio of the fuel assembly, the rods without fuel having a square cross section smaller than the cross section of the respective grid meshes only by a clearance sufficient for assembling the rods without fuel in the respective grid meshes and disassembling the rods without fuel from the respective grid meshes.

REFERENCES:
patent: 3799839 (1974-03-01), Fischer
patent: 3802995 (1974-04-01), Fritz
patent: 4314884 (1982-02-01), Fanning
patent: 4378329 (1983-03-01), Uchikawa

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