Induced nuclear reactions: processes – systems – and elements – Handling of fission reactor component structure within...
Patent
1989-09-11
1990-07-03
Behrend, Harvey E.
Induced nuclear reactions: processes, systems, and elements
Handling of fission reactor component structure within...
376261, 376327, 376426, 294211, 29515, 29517, G21C 2100
Patent
active
049389181
ABSTRACT:
The zirconium cladding of a coolant-displacement rod of a nuclear reactor is precollapsed in the zirconium oxide stack of pellets which supports the cladding. Current is conducted through the cladding in an atmosphere at reduced pressure containing residual oxygen, to heat the cladding to a temperature at which its yield strength is reduced. Then, while the rod remains at this temperature, it is subjected to isostatic pressure which collapses the cladding uniformly. The formation, by reason of exposure to neutron flux, of a long unsupported gap in the cladding which might be collapsed under the pressure of the coolant is precluded. In addition, the rod retains its symmetry. The outer surface of the cladding is oxidized, facilitating the movement of the rod into its thimbles of the core and improving the resistances of the cladding to reaction with the coolant.
REFERENCES:
patent: 3085954 (1963-04-01), Stohr et al.
patent: 3093888 (1963-06-01), Huguley
patent: 3105030 (1963-09-01), McGeary et al.
patent: 3118222 (1964-01-01), Beernaert
patent: 3192621 (1965-07-01), Bauer et al.
patent: 3376201 (1968-04-01), Bain
patent: 3461523 (1969-08-01), Peehs et al.
patent: 3556870 (1971-01-01), Debray et al.
patent: 3679545 (1972-07-01), Leirvik
patent: 4233086 (1980-11-01), Vesterlund
patent: 4343659 (1982-08-01), Murakami et al.
patent: 4432934 (1984-02-01), Gjertsen et al.
Behrend Harvey E.
Diamond H.
Westinghouse Electric Corp.
LandOfFree
Element immersed in coolant of nuclear reactor does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Element immersed in coolant of nuclear reactor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Element immersed in coolant of nuclear reactor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1889336