Reliability Assessment in Asset Management—An Utility Perspective

Palakodeti, S. Rao

doi:10.1007/978-3-319-27064-7_43

Cited by 2 publications

(1 citation statement)

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“…12 Also, Crow noted that the Duane model could be stochastically evaluated using the Weibull process for complex repairable systems, and the time to the fist failure follows a Weibull distribution. 13 The Crow AMSAA model is also called a Power Law model and is extensively used for evaluating repairable systems.…”

Section: F I G U R E 1 a Typical Arrangement Of A Fossil Power Plantmentioning

confidence: 99%

A dynamic process for evaluating the reliability of fossil power plant assets

Palakodeti

Raju

Guo³

2020

Engineering Reports

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Budgets and maintenance programs in fossil power plants are frequently set based on engineering judgment rather than a Probabilistic Risk Assessment (PRA). Fossil power plants seldom use PRA due to a lack of practical processes, especially when field reliability data are not readily available. In the absence of field data, using general industry data may not be right for conducting PRA for a given organization as the operation and maintenance conditions significantly vary between organizations. To have a successful PRA, an organization needs to use its own field data, and have an efficient process for its organization. Studies have suggested using field data provides a robust model and accurate results. Use of Reliability Block Diagrams for Reliability, Availability, and Maintainability analysis is not new. However, applications of these techniques are new to fossil power plants. In this paper, we propose a practical process by integrating several existing reliability techniques for fossil plants to apply PRA. The process was tested at many power plants, and the results aligned well with the actual values. The methodology outlined in this paper is a forward-looking tool for managers to predict system reliability, and proactively develop maintenance plans and budgets.

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Section: F I G U R E 1 a Typical Arrangement Of A Fossil Power Plantmentioning

confidence: 99%