Storage of nuclear fuel

Details Storage of nuclear fuel Storage of nuclear fuel

G - Physics

21

F

G21F 5/10 (2006.01)

Patent

CA 2580378

The invention relates to a nuclear fuel storage unit (10) which includes a vessel (12) and at least one tubular member (22) which extends through the vessel (12), opposite ends thereof opening out of the vessel (12) at spaced apart positions, to define an internal coolant flow path and such that a fuel receiving cavity (24) is defined between an outer surface of the at least one tubular member (22) and an inner surface of the vessel (12). The configuration of the fuel receiving cavity (24) is such that the packing density and geometry of fuel received in the fuel receiving cavity (24) is such that the fuel remains sub-critical. The storage unit (10) includes also at least one fuel loading passage (26) leading into the fuel receiving cavity (24) whereby fuel to be stored can be introduced into the fuel receiving cavity (24).

L'invention concerne une unité de stockage de combustible nucléaire (10) comprenant une cuve (12) et au moins un élément tubulaire (22) qui s'étend à travers la cuve (12), les extrémités opposées s'ouvrant en dehors de la cuve (12) à des emplacements distants pour définir une voie d'écoulement du réfrigérant interne et de telle façon qu'une cavité (24) recevant combustible (24) soit définie entre une surface externe du ou des éléments tubulaires (22) et une surface interne de la cuve (12). La configuration de la cavité (24) qui reçoit du combustible est telle que la densité et la géométrie de l'enveloppe du combustible reçue dans la cavité (24) destinée à loger le combustible sont telles que le combustible demeure sous-critique. L'unité de stockage (10) comprend également au moins un passage de chargement de combustible (26) conduisant à la cavité (24) recevant le combustible, le combustible à stocker pouvant être introduit dans la cavité (24) recevant le combustible.

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