Overview of Rotating Equipment

Inspectioneering recently had the opportunity to sit down and chat with Cary Forgeron and Samuel Fisher about the importance of oil analysis to effectively managing the reliability of rotating equipment used in the the O&G and other processing industries. We hope you find the exchange as interesting and informative as we did.

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Steam turbines exist in most every major industrial facility. Many of these turbines have been running for years and have been very stable. Typically, after a period of time, the equipment is shut down for maintenance during a planned outage. It is more common than not that the turbine will experience problems after the shutdown and perhaps even failure or high vibration will occur.

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Casting defects are an age old problem for our industry that seems to be getting worse as foundries in the older industrialized world shutdown for economic reasons.

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Part 1 provided a review of RBI for pressure vessels and piping and an introduction to application of RBI to rotating equipment and the differences between approaching the two different types of equipment. As promised, Part 2 will delve more deeply into the details of rotating equipment RBI analysis, highlighting additional differences between this and fixed equipment analysis and cover: - RBI for Rotating Mechanical Equipment: Likelihood - Qualitative Risk Assignment - Forming the Risk Reduction Plan - Moving from RBI to Risk-CM

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There are a number of terms to describe commonly experienced problem conditions with reciprocating compressors. One of the terms that I have always appreciated is the pendulum action of a large unsupported mass on the end of a vibrating pipe.

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