Fuel bundle with improved resistance to bulge and improved criti

Details Fuel bundle with improved resistance to bulge and improved criti Fuel bundle with improved resistance to bulge and improved criti

1993-01-25

1994-09-06

Walsh, Donald P.

Induced nuclear reactions: processes, systems, and elements

Fuel component structure

Plural fuel segments or elements

376448, G21C 332

Patent

active

053454863

ABSTRACT:
In a fuel bundle having an array of fuel rods of 9-by-9 or greater, removal of the corner fuel rods from the array occurs. This removal enables the remainder of the array rod-to-rod pitch to be decreased. Further, and over this array with the corner fuel rod removed, a fuel bundle channel having rounded corners of increased radius of curvature or flattened corners imparting a broadly taped curvature is utilized. In both cases, the effective flat span of the fuel bundle sides is reduced with the result that the new fuel bundle incorporates improved resistance to channel bulge with improved critical power.

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patent: 4970047 (1990-11-01), Ueda et al.
patent: 5068082 (1991-11-01), Ueda et al.
patent: 5128097 (1992-07-01), Fukasawa et al.

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