The document discusses optimization of steam turbine and auxiliary systems outages through condition monitoring and risk assessment. Performance monitoring showed heat rate increasing over time, costing $2.45 million by 2010. Economic analysis using a replacement energy concept showed $3.44 million lost during an 8-day outage. Condition monitoring tools like vibration, oil analysis, and infrared helped assess equipment health. Risk assessment identified failure modes and effects. Optimization of auxiliaries like pumps could save $0.08 million per outage through condition-based maintenance. The overall goals are reducing outage time through advanced monitoring programs to save $1 million per outage.

1. Outage Optimization of Steam Turbine and Auxiliaries Objective Present in CEPSI2008 at The Venetian Macao Resort-Hotel by Parichart Suttiprasit Steam Turbine Maintenance Engineer, Electricity Generating Authority of Thailand (EGAT)

2. Topics A. Performance B. Condition Monitoring C. Risk Assessment D. Auxiliaries Optimization E. Conclusion

14.  Vibration Bearing no.1 Bearing no.2 Condition Monitoring 1Y 2X 2Y 1X

15. Condition Monitoring Shaft Vibration (  m p-p ) Operation Time (year)  Vibration 1996 1999 2001 2003 2006 1 X

19. Risk Assessment Failure Mode Likelihood 1 Very unlikely has not happened to equipment or similar equipment 2 Unlikely >2 times in 5-10 years to equipment or similar equipment 3 Likely >3 times in last 5 years 6 Likely >2 times in last year 10 Very likely many times to this equipment

20. Risk Assessment Failure Effect Weight Unit Shut down 10 Unit Through put Loss 8 Minor Through put Loss 4 Start up Delay 4 Personnel Hazard 10 Personnel Hazard – Low Probability of Injury 5 Environment Regulations Event – Major Incident 10 Environment Regulations Event – Incident 7 Environment Regulations Event – Near Miss 3

21. Risk Assessment Failure Mode Likelihood x Failure Effect = Risk 1 x 10 = 10 % Moderate Probability

28. Auxiliaries Optimization Time Based Maintenance (TBM) vs. Condition Based Maintenance (CBM) Benefits of 0.08 million US$ per outage

31. Question & Answer “ Thank you for your attention”