Control of corrosion product transport in PWR secondary cycles
- NWT Corp., San Josa, CA (United States)
- Electric Power Research Institute, Palo Alto, CA (United States)
Transport of corrosion products to PWR steam generators by the feedwater leads to sludge buildup on the tubesheets and fouling of tube-to-tube support crevices. In these regions, chemical impurities concentrate and accelerate tubing corrosion. Deposit buildup on the tubes also can lead to power generation limitations and necessitate chemical cleaning. Extensive corrosion product transport data for PWR secondary cycles has been developed employing integrating sampling techniques which facilitate identification of major corrosion product sources and assessments of the effectiveness of various control options. Plant data currently are available for assessing the impact of factors such as pH, pH control additive, materials of construction, blowdown, condensate treatment, and high temperature drains and feedwater filtration.
- OSTI ID:
- 48072
- Report Number(s):
- CONF-910808--
- Country of Publication:
- United States
- Language:
- English
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