Trip Reduction in Turbo Machinery

Abstract

Industrial plant uptime is top most importance for reliable, profitable & sustainable operation. Trip and failed start have major impact on plant reliability and all plant operators focussed on efforts required to minimise the trips & failed starts. The performance of these Critical to Quality (CTQs) are measured with 2 metrics, MTBT (Mean time between trips) and SR (Starting reliability). These metrics helps to identify top failure modes and identify units need more effort to improve plant reliability.Baker Hughes Trip reduction program structured to reduce these unwanted trip1. Real time machine operational parameters remotely available and capturing the signature of malfunction including related boundary condition.2. Real time alerting system based on analytics available remotely.3. Remote access to trip logs and alarms from control system to identify the cause of events.4. Continuous support to field engineers by remotely connecting with subject matter expert.5. Live tracking of key Critical to Quality (CTQs)6. Benchmark against fleet7. Break down to the cause of failure to component level8. Investigate top contributor, identify design and operational root cause9. Implement corrective and preventive action10. Assessing effectiveness of implemented solution.11. Develop analytics for predictive maintenanceWith this approach, Baker Hughes team is able to support customer in achieving their Reliability Key performance Indicators for monitored units, huge cost savings for plant operators. This paper explains this approach while providing successful case studies, in particular where 12nos. of Liquified Natural Gas (LNG) and Pipeline operators with about 140 gas compressing line-ups has adopted these techniques and significantly reduce the number of trips and improved MTBT.