Deposit suppression in the core of water-cooled nuclear reactors
US4364900A · kind A · utility
13Cited by
8References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 17, 1978 |
| Grant date | Dec 21, 1982 |
| Priority date | — |
| Expiry date | May 17, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E30/30
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
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 NH.sub.3 /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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.