7F Users Group – Combined Cycle Journal

7F Users Group

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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Groome positioned for growth, acquires W-S Companies

Groome Industrial Service Group, a recognized leader in specialty maintenance services across a broad range of industrial markets, is always working toward one goal: Provide top notch turnkey industrial services to every one of its clients, anywhere in the country. Groome took a huge step towards that goal when it recently announced the acquisition of

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Simple solution removes varnish, increases turbine efficiency

Tackle varnish and improve turbine efficiency with Shell EcoSafe Revive Shell EcoSafe Revive is a solvency enhancer fluid that can be incorporated into most turbine oils to reduce the issues associated with varnish formation and fluid instability. Adding the recommended amount of Shell EcoSafe Revive requires no conversion process and reduces reliance on expensive varnish

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HERMISTON GENERATING PLANT, UNIT 2: Successful complete CCGT major outage with OOEM

Mechanical Dynamics & Analysis (MD&A) recently completed the major inspection and refurbishment of a 1 × 1 combined cycle at the Hermiston Generating Plant that successfully returned the facility’s turbines and generators to full and reliable operation. The project began with the full major inspection of a late-1990s-vintage, 170-MW 7FA gas turbine—including the robotic inspection

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Newington: Three best practices enhance safety, performance, O&M across Cogentrix fleet

Essential Power Newington Owned by Essential Power Investments Operated by Cogentrix Energy Power Management 565 MW, 2 × 1 7F-powered combined cycle equipped with a GE D11 steam turbine, located in Newington, NH Plant manager: Tom Fallon Flags make HV grounds visible to ensure proper installation Challenge. During maintenance outages when conducting high-voltage (HV) activities,

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CPV St. Charles: Best practices from leading 7FA.05 facility

St. Charles Energy Center Owned by CPV Maryland LLC Operated by Consolidated Asset Management Services 745 MW, 2 × 1 7F.05-powered combined cycle equipped with a GE D11A steam turbine, located in Waldorf, Md Plant manager: Nick Bohl RO clean-in-place wastewater discharge mod reduces manhours, cost Background. St. Charles Energy Center uses two double-pass reverse-osmosis

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Hunterstown: Plant personnel safety improves with remote racking devices

Hunterstown Generating Station Owned by Platinum Equity LLC Asset management by Competitive Power Ventures Operated by NAES Corp 810 MW, 3 × 1 7F.04-powered combined cycle equipped with a GE D11 steam turbine, located in Gettysburg, Pa Plant manager: Tom Hart (former), Mark Kadon (current) Challenge. Hunterstown’s obsolete robot made racking-out breakers more hazardous than

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CCC Norte III: Successful winterization plan increases plant reliability

38 CC Norte III Owned by Abeinsa Operated by NAES México 907 MW, 2 × 1 7F.04-powered combined cycle equipped with a Toshiba steam turbine, located in Chihuahua, Mexico Plant manager: Armando Burgueño Challenge. 38 CC Norte III is located in a region of Mexico with one of the country’s most extreme climates—very hot summers

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