Conference Proceedings Paper
Risk-Informed Prediction of Feeder End of Life
32nd Annual CNS Conference - 2011 June 05-08
Mikko Jyrkama (University of Waterloo)
Mahesh Pandey (University of Waterloo)
The operating life of feeder piping is negatively impacted by flow accelerated corrosion (FAC). In this study, an assessment of a large set of inspection data reveals that FAC in feeders is a relatively stationary process, with variability only at the local scale. Given the added uncertainty from inspection coverage, a new method for estimating the thinning rate and feeder EOL is developed using a probabilistic approach. The results of the study illustrate the benefits of the methodology in supporting risk-informed decision making at the station by quantifying the present and incremental risk in the feeder system over time.
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