Critical power enhancement system for a pressurized fuel...

Details Critical power enhancement system for a pressurized fuel... Critical power enhancement system for a pressurized fuel...

G - Physics

21

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G21C 3/32 (2006.01) G21C 3/14 (2006.01) G21C 3/33 (2006.01) G21C 15/02 (2006.01)

Patent

CA 2283647

A Critical Channel Power (CCP) enhancement system is provided for a pressurized fuel-channel-type water-cooled nuclear reactor of the type adapted to be refuelled on-line by the insertion and removal of fuel bundles onto and from of a plurality of said fuel channel assemblies, each of said fuel channel assemblies. A means is provided for interlocking fuel bundles into pairs having their fuel elements aligned, thereby lowering the hydraulic resistance in the fuel channel and enhancing CCP. The means for interlocking prevents misalignment of the paired bundles during their residence time inside the reactor due to continuous rocking and vibration of the fuel bundles exposed to very high coolant mass flow rate and misalignment due to axial separation of bundles impacting upon one another during fuelling operations.

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