Method and apparatus for preventing and repairing vibrational da

Details Method and apparatus for preventing and repairing vibrational da Method and apparatus for preventing and repairing vibrational da

1987-05-06

1988-11-15

Kyle, Deborah L.

Induced nuclear reactions: processes, systems, and elements

Reactor structures

Circulating fluid within reactor

376438, 376442, 376446, 376447, G21C 332

Patent

active

047848251

ABSTRACT:
The fuel rods located in areas of a nuclear reactor core where water jetting damage to the rods can occur are secured together by a clip, in order to change the mass subject to fretting damage. The change of mass changes the amplitude of the induced fuel rod vibration, thus reducing possible fuel rod fretting an/or damage. To repair such damage, the combination of clip(s) and an inert rod are used to replace a damaged fuel rod.

REFERENCES:
patent: 3163583 (1964-12-01), Widmer et al.
patent: 3314860 (1967-04-01), Wilman
patent: 4056441 (1977-11-01), Marmonier et al.
patent: 4416852 (1983-11-01), Nylund
patent: 4508679 (1985-04-01), Matzner et al.
patent: 4576778 (1986-03-01), Ferree et al.
patent: 4650638 (1987-03-01), Coussau
patent: 4673545 (1987-06-01), Cooke et al.
Copy of Publication from Proceedings of the 13th Biannual Meeting on Nuclear Operating Experience and International Meeting on Nuclear Power Plant Operation, Chicago, IL., Aug. 31-Sep. 2, 1987, pp. 160.noteq.161 .
"A New Solution to the Baffle Jetting Problem", Power Engr., 9/84, pp. 46-49, Reparaz et al.
"Protection of Fuel Bundles Against Baffle Jetting", Reparaz et al, ANS Winter Meeting, 1983.

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