Khalifa, M and Khan, FI and Thorp, J, Risk-based maintenance and remaining life assessment for gas turbines, Journal of Quality in Maintenance Engineering, 21, (1) pp. 100-111. ISSN 1355-2511 (2015) [Refereed Article]
© Emerald Group Publishing Limited 2015
Purpose-The purpose of this paper is to propose a quantitative model for risk-based maintenance and remaining life assessment for gas turbines.
Design/methodology/approach-The proposed model uses historical failure and repair data from the operation of gas turbines. The time to failure of gas turbines is modeled using Weibull distribution.
Findings-The total risk is estimated considering replacement cost, repair cost, operation cost, risk of failure and turbine remaining value after a specified period of time.
Originality/value-The model is an effective tool to make optimal decisions regarding maintenance strategy (repair or replacement) and to assess the remaining life based on a comparison of the total risk. The literature review focusses on developing different models to make risk-based decisions regarding the selection of a maintenance strategy and maintenance interval, however, literature is silent regarding risk-based assessment of the equipment remaining life, which is the focus of present work. The model is tested and applied to ageing gas turbines in a cross-country pipeline.
|Item Type:||Refereed Article|
|Keywords:||gas turbines, remaining life, repair, replacement, risk of failure, costs, gas turbines, gases, maintenance, risk assessment, risk perception, Weibull distribution, cross country pipelines, maintenance strategies, remaining life, replacement, repair|
|Research Group:||Engineering practice and education|
|Research Field:||Risk engineering|
|Objective Group:||Energy transformation|
|Objective Field:||Transformation of gas into electricity|
|UTAS Author:||Khan, FI (Professor Faisal Khan)|
|Web of Science® Times Cited:||4|
|Deposited By:||NC Maritime Engineering and Hydrodynamics|
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