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In-situ extraction of a migrating 7EA S-12 shim saves owner more than $400k

It was only a few years ago that owner/operators of GE E- and F-class gas turbines learned technicians from Advanced Turbine Support LLC could extract or blend shims in the first three compressor stages in-situ—no case removal necessary. That was a big deal because shims found protruding into the compressor air stream during a borescope […]

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Webinars, virtual conferences help users identify, implement plant-betterment solutions

If the coronavirus pandemic has taught us one thing, having the ability to access the expert information needed to perform O&M tasks at the highest level without leaving the plant (or home) is vital. With good internet connections generally available at most powerplants, the challenge might be finding the information required. You likely have several

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Steam Turbine Users Group 2019: Vendor presentation recaps

“Steam Turbine Repair Planning and Execution,” Bryan Grant, Advanced Turbine Support LLC. Whether you inspect/repair your plant’s steam turbine or contract out those services, Bryan Grant’s presentation is a valuable reference for O&M personnel, one possibly worthwhile reviewing ahead of your ST inspection/maintenance outages. It’s available on the Power Users website 24/7. Grant offers tips

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Turbine valves: How to prevent an actuator failure from tripping your plant

The value of user groups continues to grow in the electric power industry as the number of employees on the deck plates shrinks and personnel with deep experience retire. The plant manager for a 2 × 1 J-class combined cycle under construction told the editors he had received more than 500 resumes in the last

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Steam Turbine Users Group 2019: User presentation recaps

The speaker making the first technical presentation at the 2019 meeting discussed damage to the first three stages (blades and diaphragms) of his steamer caused by what he termed “magnetite throw”—a way of describing solid-particle erosion. An attendee mentioned that strainers were added to bypass valves at his plant to protect the turbine against such

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Film-forming substances (FFS): The next frontier in cycle chemistry

If you’ve been in the power-generation business for a couple of decades—and made your bones at baseload, coal-fired, water-cooled plants, in particular—you may believe you know all there is to know about Rankine-cycle steam/water chemistry. Perhaps that’s true, for that type of facility. But with coal-fired plants being shuttered in increasing numbers you may find

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