Deposit suppression in the core of water-cooled nuclear...

Details Deposit suppression in the core of water-cooled nuclear... Deposit suppression in the core of water-cooled nuclear...

G - Physics

21

C

359/64

G21C 15/28 (2006.01)

Patent

CA 1064626

TITLE DEPOSIT SUPPRESSION IN THE CORE OF WATER-COOLED NUCLEAR REACTORS INVENTOR Kenneth A. Burrill ABSTRACT OF THE DISCLOSURE In pressurized water-cooled nuclear reactors, the formation of deposits on surfaces in the core of the reactor, e.g. on fuel sheaths, is suppressed by maintaining in the circulating pressurized water, a high concentration of ammonia ranging from about 120 to about 200 mg NH3/kg water. Crevice corrosion of the fuel sheaths is avoided, even under localized boiling conditions, since the pH never attains a corrosively high level. The crevice corrosion danger with lithium can be reduced by replacing part of the lithium with ammonia.

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