Reliability Analysis in Support of Risk Assessment for Hydroelectric Generating Stations
Publication: Journal of Water Resources Planning and Management
Volume 123, Issue 3
Abstract
In work sponsored by the U.S. Army Corps of Engineers (USACE), Pacific Northwest Laboratory (PNL), Richland, Wash., has performed a frequency analysis regarding the nonroutine closure of water flow through the turbines of powerhouses along the Columbia and Snake Rivers. The analysis involved developing a frequency analysis model capable of producing frequency profiles of overspeed and flooding events as a function of time and the associated component importance rankings. Data regarding hydropower equipment failures from a previous study were used to estimate component failure rates within the model. The present paper summarizes the model development and quantification, and calculation of component importance measures. The results of this analysis can be used as input to further analyses to evaluate economic consequences of overspeed and flooding events and to provide policy recommendations for operations of hydroelectric generating stations.
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References
1.
Blackburn, T. R., et al. (1995). “Risk assessment for non-routine closure/shutdown of hydroelectric generating stations: phase 1 report—collection and analysis of plant failure data.”Rep. PNL-10547, Pacific Northwest Laboratory, Richland, Wash.
2.
Russell, K. D., McKay, M. K., Sattison, M. B., Skinner, N. L., Wood, S. T., and Rasmuson, D. M. (1992). “Integrated reliability and risk analysis system (IRRAS) version 4.0.”Rep. NUREG/CR-5813, U.S. Nuclear Regulatory Commission, Idaho National Engineering Laboratory, EG&G Idaho, Inc., Idaho Falls, Idaho.
3.
Vesely, W. E., Davis, T. C., Denning, R. S., and Saltos, N. (1983). “Measures of risk importance and their applications.”Rep. NUREG/CR-3385, Battelle Columbus Laboratories, Columbus, Ohio.
4.
Vo, T. V., et al. (1995). Frequency analysis in support of risk assessment for non-routine closure of hydroelectric generating stations. Rep. PNL-26279, Pacific Northwest National Laboratory, Richland, Wash.
Information & Authors
Information
Published In
Journal of Water Resources Planning and Management
Volume 123 • Issue 3 • May 1997
Pages: 179 - 188
Copyright
Copyright © 1997 American Society of Civil Engineers.
History
Published online: May 1, 1997
Published in print: May 1997
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