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U.S. Department of Energy
Office of Scientific and Technical Information

Oxygen suppression in boiling water reactors. Quarterly report 3, April 1-June 30, 1978

Technical Report ·
DOI:https://doi.org/10.2172/5752609· OSTI ID:5752609
Boiling water reactors (BWR's) generally use high purity, no-additive feedwater. The primary recirculating coolant is neutral pH and contains 100 to 300 ppB oxygen and stoichiometrically related dissolved hydrogen. However, oxygenated water increases austenitic stainless steel susceptibility to intergranular stress-corrosion cracking (IGSCC) when other requisite factors such as stress and sensitization are present. Thus, reduction or elimination of the oxygen in BWR water may preclude cracking incidents. This program is to perform an in-depth engineering evaluation of the potential suppression additives supported by critical experiments where required to resolve substantive uncertainties. On the basis of the engineering evaluation, the optimum oxygen suppression technique will be selected and a specific BWR plant recommended for an extended (3-year) plant demonstration experiment.
Research Organization:
General Electric Co., San Jose, CA (USA). Nuclear Energy Engineering Div.
DOE Contract Number:
EY-76-C-02-2985
OSTI ID:
5752609
Report Number(s):
COO-2985-33; NEDC-23856-2
Country of Publication:
United States
Language:
English