Applicability of Chemical Cleaning Process to Steam Generator Secondary Side, (III) Effect of Chemical Cleaning on Long Term Integrity of Steam Generator Tube after Chemical Cleaning Process
JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY(2006)
Abstract
The application of the chemical cleaning process to dissolve and remove scales and sludge by chemicals is being planned at the Japanese pressurized water reactor (PWR) plant in order to maintain a designed heat transfer condition and to prevent the steam generator (SG) tube degradation. In this paper, the affects of the EPRI process and the KWU process on the long term integrity of SG tubing were investigated under the simulated SG condition using a SG model boiler test facility. No adverse effect of the both chemical cleaning processes on the long term integrity of SG tubing were observed.
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Key words
PWR type reactors,steam generator,chemical cleaning,EPRI process,KWU process,scales,sludge,IGSCC
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