Risk-based maintenance and remaining life assessment for gas turbines

被引：10
|
作者：
Khalifa, Mohamed [1 ]
Khan, Faisal [2 ]
Thorp, Joseph [3 ]
机构：
[1] Nalcor Energy Co, Newfoundland Hydro, Project Execut & Tech Serv, St John, NF, Canada
[2] Mem Univ, Dept Proc Engn, St John, NF, Canada
[3] Aramco Serv Co, Houston, TX 77096 USA
来源：
JOURNAL OF QUALITY IN MAINTENANCE ENGINEERING | 2015年 / 21卷 / 01期
基金：
加拿大自然科学与工程研究理事会;
关键词：
Gas turbines; Remaining life; Repair; Replacement; Risk of failure;
D O I：
10.1108/JQME-12-2012-0047
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
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.
引用
收藏
页码：100 / 111
页数：12
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