A122 エルボ管におけるFAC減肉速度と物質移行係数の評価について : (2)全面伝達条件における物質移行係数の計測(OS2 保全・設備診断技術(1))

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  • A122 Evaluation of wall thining rate of FAC and mass transfer coefficient in elbow : (2)Mass transfer measurement by point electrode surrounded active electrode

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Flow Accelerated Corrosion (FAC) is one of the issues to be noticed considerably in plant piping management. For the integrity and safety of the plant, the wall-thinning and thinning rate due to FAC should be predicted, and we hope to construct the model to predict the wall thinning rate. We have studied FAC from the view point of flow dynamics. The mass transfer coefficient is measured by the electrochemical method with the point electrode. In this study, we evaluate the effect of concentration boundary layer on the point electrode.

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