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Hydrogen Water Chemistry Technology in Boiling Water Reactors

Chien C. Lin

Nuclear Technology / Volume 130 / Number 1 / Pages 59-70

April 2000


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Modification of coolant chemistry by feedwater hydrogen addition in boiling water reactors (BWRs), generally called hydrogen water chemistry (HWC), is a viable option to mitigate the intergranular stress corrosion cracking problems for operating BWRs. Some fundamentals in HWC technologies as known today are reviewed. Several full-scale HWC test results are analyzed, and the roles that hydrogen plays in HWC technology are identified and quantitatively evaluated. Some deficiencies in water radiolysis modeling for BWR applications under HWC conditions and the impact of 16N radiation field increase in the main steam line are also discussed.

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