STUG – Combined Cycle Journal

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Target repeat chemistry mistakes to stop HRSG and steam-turbine damage (Video)

CCUG, HRSGs, STUG / By

The International Association for the Properties of Water and Steam (IAPWS) opened its Power Cycle Chemistry (PCC) webinar series, with Dr. Barry Dooley presenting and David Addison moderating, outlining how repeat cycle chemistry situations (RCCS) drive the majority of chemistry-influenced failures in fossil and combined-cycle/HRSG fleets. The message was direct: failures are patterned, measurable, and […]

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CCJ Historical Society: Looking back from 2025

501 F&G Users Group, 7EA Users Group, 7F Users Group, Advanced GTs, Aeros, Alstom Owners Group, Best Practices, CCUG, Controls, D5-D5A Users, Frame 6, Generator Users Group, Generators, HRSGs, STUG, V Users / By

What your colleagues were telling CCJ subscribers five, 10, 15, and 20 years ago  Five years ago  The 7F Users Group and CCJ collaborated on the first virtual user-group meeting conducted as a result of the global pandemic. It was the launchpad for more than 20 online user meetings facilitated by CCJ during that challenging three-year period.  The Combined

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Plan for 2026: CCGT Industry Events  

501 F&G Users Group, 7EA Users Group, 7F Users Group, Advanced GTs, Aeros, Alstom Owners Group, CCUG, Controls, Frame 6, Generator Users Group, HRSGs, STUG / By

Upcoming events where you’ll see CCJ attendance and coverage. Hope to see you there. PROENERGY Conference January 26-28  Arizona Grand Resort, Phoenix, Ariz. Details/registration at www.proenergyservices.com. Contact: Chris Evans, cevans@proenergyservices.com.   PSM Asset Managers Conference January 26-28  | Wyndham Grande at Harbourside Place, Jupiter, Fla. Details/registration at www.psm.com. Contact: Michèle McDermott, Michele.McDermott@us.psm.com.   Vogt Combined Cycle Seminar  February 11-12  Omni

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Focus on D11 strategies, EHC pitfalls, and skilled labor shortages @ STUG 2024

STUG / By

A spirited Roundtable discussion among users kicked off the conference. Some of the more salient topics and concerns include: Changing maintenance strategies to reflect cycling of baseload designed units. Frequency of inspecting l-p blades for erosion from low-load operation (several say once a year, one user inspects twice annually) Incorporating drones into inspection programs (they

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Life-long learning abounds across five user group conferences @ Power Users 2024

CCUG, Controls, Generator Users Group, HRSGs, STUG / By

The question these days becomes why wouldn’t you send as many of your plant staff as possible to the Power Users Combined Conference, comprising the Combined Cycle Users Group (CCUG), Generator Users Group (GUG), Steam Turbine Users Group (STUG), Power Plant Controls Users Group (PPCUG), and the Low Carbon Peer Group? As amply exhibited in the

Life-long learning abounds across five user group conferences @ Power Users 2024 Read More »

Get your steam turbine the help it needs @ STUG25

STUG / By

Why Attend the 2025 Steam Turbine Users Group? From casing cracks to L-0 erosion, D-11 valve rebuilds to titanium blade retrofits—Steam Turbine Users Group (STUG) sessions at the 2025 Power Users Combined Conference are designed to confront the real-world issues facing today’s steam turbine fleets. Whether you run a legacy baseload machine or support peaking

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Improvise, adapt, overcome: Navigate power’s new frontiers

CCUG, Controls, Generator Users Group, Generators, STUG / By

In a period of accelerating change across the power generation industry—shaped by decarbonization goals, shifting market pressures, and the realities of an aging fleet—the 2025 Power Users Combined Conference presents a timely opportunity to learn, adapt, and prepare your team for what’s next. From August 25–28 in Washington, D.C., this multi-group forum brings together five

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Six reasons to attend the 2025 Air-Cooled Condenser Users Group (ACCUG) Conference in Granbury, Texas

HRSGs, STUG / By

Each year, the Air-Cooled Condenser Users Group (ACCUG) brings together engineers, plant managers, OEM experts, and operations professionals to tackle the most pressing challenges facing air-cooled condenser (ACC) systems. In 2025, this highly anticipated gathering returns to Granbury, Texas—a fitting venue for an event dedicated to advancing power plant cooling technologies in water-constrained environments. With

Six reasons to attend the 2025 Air-Cooled Condenser Users Group (ACCUG) Conference in Granbury, Texas Read More »

BOILER VALVES: Avoid Stellite delamination with alternative hardfacing

Advanced GTs, Best Practices, HRSGs, STUG / By

By Richard Laukam, ValvTechnologies LLC Steam stop valves, located at the boiler outlet, provide isolation. These typically are wedge-type gate valves, stop-check valves, or parallel-slide gate valves. Hardfacing often is applied to the seat and closing member (wedge, plug, or discs) to reduce wear and extend the duration of leak-free service. Hardfacing is the building

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Combined Cycle Users Group: 2023 vendor presentation recaps

CCUG, Controls, Generator Users Group, HRSGs, STUG / By

“Mastering Desuperheating and Attemperation,” Ory Selzer, IMI Insyt Almost 200 slides long, this presentation could serve as a comprehensive training course on what can and does go wrong with two of the most vexing subsystems in the steam cycle, as well as solutions. Instructor sets the stage with numerous photos of component failures (Fig 6),

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