Induced nuclear reactions: processes – systems – and elements – Handling of fission reactor component structure within... – Storage container systems for new and/or irradiated core...
Patent
1984-12-24
1987-03-10
Kyle, Deborah L.
Induced nuclear reactions: processes, systems, and elements
Handling of fission reactor component structure within...
Storage container systems for new and/or irradiated core...
376261, 2505071, G21C 1932
Patent
active
046490175
ABSTRACT:
A canister for the consolidation of nuclear fuel rods (22) comprises an elongated, tapered box (24) of generally rectangular cross-section having upper (42) and lower (44) internal sections, the upper section having rectangular grid structure (46) and the lower section having vertically extending plate members (48). The upper section receives individual fuel rods in a relatively loosely packed rectangular array of rows and columns and urges the rods closer together as they are lowered into the box, such that the rods emerge through the lower end of the grid section in a relatively tightly rectangular array. The number of plate members (48) in the lower section corresponds to the number of rows of fuel rods in the upper section. Each plate has tapered side edges (204) abutting the tapered box, and a plurality of integrally formed, corrugated channels (206) corresponding to the number of rows of fuel rods. These channels guide the fuel rods into a triangularly pitched array, and the decreasing space between adjacent plates causes the fuel rods to move closer together as they move through the box. At the lower edge (202) of each plate the corrugations form a periodic series of alternating convex (208) and concave (210) arches such that each concave arch on one plate faces a concave arch on the adjacent plate. At their closest spacing, the edges of adjacent arches are separated by a distance substantially equal to a fuel rod diameter.
REFERENCES:
patent: 4441242 (1984-04-01), Hicken et al.
patent: 4446098 (1984-05-01), Pomaibo et al.
patent: 4474727 (1984-10-01), Kmonk et al.
patent: 4488048 (1984-12-01), Bienek et al.
patent: 4507840 (1985-04-01), Steinert et al.
patent: 4619808 (1986-10-01), Formanek
"The Problem of Nuclear Waste-We've Got to Solve It Soon", Changing Times, Feb. 1979, pp. 31-33.
"NAC to Test DOE Calculation that Repacking Can Add Spent Fuel Storage at $10/KG", Nuclear Fuel, Jan. 19, 1981, p. 16.
Combustion Engineering Inc.
Kyle Deborah L.
Mulholland John H.
Wasil Dan
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