7F Users Group – Combined Cycle Journal

7F Users Group

Borescope inspections often more important than ever

With all the sophisticated gas-turbine inspection technologies available today—including ultrasonic, eddy current array, and phased-array ultrasonic—one might think the borescope had lost a step in status. Nothing could be further from the truth. Borescope capabilities have improved dramatically over time and they put your eyes right into the guts of critical plant equipment—to warn of […]

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Controls: Excess-fuel trip logic mitigates explosion potential

Legacy Turbine Doctor, No. 3 in a series By Luke Williams, PE, Consultant www.geLegacyGasTurbineSupport.com An MS6001B in Florida experienced a significant failure in 1994 when its stop-ratio valve (SRV) servo failed. On startup, the unit cranked and fired successfully; however, the valve continued to open. The failure was caused by the servo sticking at a

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PSM powers next-gen turbine transformations

Alex Hoffs, president of PSM, opened the 2025 PSM Asset Manager Conference (AMC) by reinforcing PSM’s dedication to innovative clean energy solutions aimed at benefiting future generations. He outlined the mission to meet customer demands through a flexible, reliable, and efficient portfolio that enhances asset lifecycle costs. Emphasizing the company’s core values—agility, innovation, and trust—Hoffs

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7FUG24: Frustration mounts as users take more control over their machines’ destinies

Relative to what was presented at previous meetings, the matrix of issues facing users expanded and the sentiments about the OEM didn’t get any kinder at the 2024 7F Users Group Conference, held in St. Louis, MO, May 20-24. Those wishing a refresh on earlier conference summaries can refer to CCJ, No. 78 (2023) and

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7F Users Group: 35 years serving 7F owners and operators

The 2025 7F Users Group Annual Conference brings together the largest gathering of 7F gas turbine owner/operators in the world. This year’s event promises a comprehensive and collaborative forum focused on technical knowledge-sharing, hands-on solutions, and the evolving role of the 7F fleet in the energy landscape. Access the latest official conference details at the

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From wear to repair: Managing exhaust-frame health

The exhaust frame faces several critical operational and maintenance challenges primarily because of cyclic, variable, and minimal load operations. No matter the turbine model, end users and solutions providers are reporting more frequent inspections and maintenance on this vulnerable equipment. Here, David Clarida of Integrity Power Solutions (IPS) reviews his recent experience at a Texas

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WATER TREATMENT: Faribault’s 14 years of performance, financial success

By Shawn Flake, NAES Corp, and Stacy Willis and Dave Gebhard, Veolia Water Technologies and Solutions Faribault Energy Park, a 300-MW gas-fired combined-cycle facility located in southern Minnesota, represents a significant investment in sustainable energy infrastructure. Owned by the Minnesota Municipal Power Agency (MMPA) and operated by NAES Corp, the plant was commissioned in 2007.

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TBC DURABILITY, PART I: Effect of hydrogen combustion on thermal barrier coatings

Decarbonization of the electric power industry will increase the use of hydrogen as a gas-turbine (GT) fuel—alone or in combination with natural gas. Issues for hot-section components when burning hydrogen include the following: increased flame speed, temperature, quenching distance, steam in combustion products (from 12% to 21%), and loading. The resulting increase in erosion and

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2024 PSM ASSET MANAGERS CONFERENCE: Celebrating 25 Years of Innovation

Origin story sets the trajectory towards user-focused solutions Psychologists tell us that our personalities are largely established early in life. Some even argue that by the time you turn seven, how you behave is pretty much set for life. In other words, your origin story is really, really important. Think about that as you read

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EUROPEAN TECHNOLOGY DEVELOPMENT: MIMA-3 conference targets sustainable power

By Steven C Stultz, Consulting Editor The third conference on Materials, Inspection, Monitoring, and Assessment (MIMA-3), conducted by UK-based European Technology Development Ltd (ETD) last October (2023), in London, focused on sustainable power generation. Discussions and presentations addressed challenges associated with fossil and nuclear power generation, low- or no-carbon fuels, and renewables technologies. Highlights of

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