Induced nuclear reactions: processes – systems – and elements – Fuel component structure – Plural fuel segments or elements
Patent
1985-12-06
1989-07-04
Maples, John S.
Induced nuclear reactions: processes, systems, and elements
Fuel component structure
Plural fuel segments or elements
376440, 376442, 376462, 376438, G21C 334
Patent
active
048448613
ABSTRACT:
A fuel assembly for nuclear reactors comprising a skeleton having two end pieces connected together by elongate elements and several grids spaced apart along the guide tubes and forming cells for holding a bundle of fuel elements in position at the nodes of a regular lattice. The grids comprise median grids adapted for resisting lateral shocks and having fins for creating turbulences in the flow of the coolant along the assembly, bottom grids without fins and ensuring the cross bracing of the elements and top grids with fins and ensuring cross bracing of the elements, the top and bottom grids imposing on the coolant a pressure loss lower than the median grids.
REFERENCES:
patent: 3862000 (1975-01-01), Pugh et al.
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patent: 4081324 (1978-03-01), Flora et al.
patent: 4427624 (1984-01-01), Marlatt et al.
patent: 4522782 (1985-06-01), Leclercq
patent: 4576786 (1986-03-01), DeMario
Dehon, C et al., "Fragema Offers an Advanced Assembly", N.E.I., Sep. 1985, pp. 42-45.
Orr, W. L. et al, "Westinghouse Introduces New Fuel for Pwrs and Bwrs", NEI, Sep. 1985, pp. 53-55.
Fragema
Maples John S.
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