Conference Proceedings Paper
EFFECT OF FLOW CONDITIONS ON FLOW ACCELERATED CORROSION IN PIPE BENDS
35th Annual CNS Conference - 2015 May 31 - June 3
H. Mazhar (Canadian Nuclear Laboratories)
C. Ching (McMaster University)
Flow Accelerated Corrosion (FAC) in piping systems is a safety and reliability problem in the nuclear industry. In this study, the pipe wall thinning rates and development of surface roughness in pipe bends are compared for single phase and two phase annular flow conditions. The FAC rates were measured using the dissolution of test sections cast from gypsum in water with a Schmidt number of 1280. The change in location and levels of maximum FAC under single phase and two phase flow conditions are examined. The comparison of the relative roughness indicates a higher effect for the surface roughness in single phase flow than in two phase flow.
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