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Open Access research with a European policy impact...

The Strathprints institutional repository is a digital archive of University of Strathclyde's Open Access research outputs. Strathprints provides access to thousands of Open Access research papers by Strathclyde researchers, including by researchers from the European Policies Research Centre (EPRC).

EPRC is a leading institute in Europe for comparative research on public policy, with a particular focus on regional development policies. Spanning 30 European countries, EPRC research programmes have a strong emphasis on applied research and knowledge exchange, including the provision of policy advice to EU institutions and national and sub-national government authorities throughout Europe.

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Empirical Bayes methodology for estimating equipment failure rates with application to power generation plants

Hutchison, Kenneth and Quigley, John and Raza, M. and Walls, L.A. (2008) Empirical Bayes methodology for estimating equipment failure rates with application to power generation plants. In: IEEE International Conference on Industrial Engineering and Engineering Management, 2008. International Conference on Industrial Engineering and Engineering Management IEEM, 1-3 . IEEE, pp. 1359-1364. ISBN 9781424426294

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Abstract

Many reliability databases pool event data for equipment across different plants. Pooling may occur both within and between organizations with the intention of sharing data across common items within similar operating environments to provide better estimates of reliability and availability. Frequentist estimation methods can be poor when few, or no, events occur even when equipment operate for long periods. An alternative approach based upon empirical Bayes estimation is proposed. The new method is applied to failure data analysis in power generation plants and found to provide credible insights. A statistical comparison between the proposed and frequentist methods shows that empirical Bayes is capable of generating more accurate estimates.