Precise Evaluation of Corrosion Environments of Structural Materials under Complex Water Flow Condition, (I) Estimation of Corrosion Potentials in Reactor Pressure Vessel Bottom of BWRs

作者: Nagayoshi ICHIKAWA , Yukio HEMMI , Junichi TAKAGI

DOI: 10.1080/18811248.2003.9715395

关键词:

摘要: To estimate the corrosion potentials of structural materials under complex water flow condition, such as reactor pressure vessel (RPV) bottom region Boiling Water Reactors (BWRs), a method was newly developed. Three-dimensional analysis performed and were calculated on basis results. showed velocities in RPV varied from about 0.1 ms-1 to 4.5 ms-1. From potential estimation hydrogen chemistry (HWC) at jet pump outlet shroud support leg, rather large amount had be added reduce because high velocity condition. Conversely, small sufficient case stub tube control rod drive (CRD) guide tubing located center region.

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