Advanced GTs – Combined Cycle Journal

Advanced GTs

Innovative solutions for reliability and safety: Fairview’s best practices in winter operations, maintenance efficiency, and generator upgrades

Advanced GTs / By

Fairview Energy Center Owned by Competitive Power Ventures, Osaka Gas, and DLE Operated by NAES Corp 1050 MW, gas-fired 2 × 1 7HA.02-powered combined cycle equipped with a GE D602 steamer and John Cockerill (formerly CMI) HRSGs, located in Johnstown, Pa Plant manager: Irvin Holes Enclosure improves air-compressor reliability in winter Challenge. Fairview’s Atlas Copco […]

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Enhancing safety, efficiency, and training: Towantic’s best practices in dual-fuel operations, operator requalification, and digital SDS access

Advanced GTs / By

CPV Towantic Energy Center Owned by Competitive Power Ventures and Osaka Gas Operated by NAES Corp 805 MW, gas-fired 2 × 1 7HA.01-powered combined cycle equipped with DLN2.6+ AFS combustion systems, GE D602 steamer, and John Cockerill (formerly CMI) HRSGs, located in Oxford, Conn Plant manager: Larry Hawk GT enclosure cameras critical to plant’s participation

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In memoriam: Schuyler Vaughn McElrath, esteemed power industry professional

Advanced GTs / By

If you never had responsibility for operating and/or maintaining a GE E-, F-, or H-Frame gas turbine you might not have met Schuyler McElrath, who left us in mid-January at the age of 66. He was a fuel-system expert, always available to help users keep their engines starting and running reliably on oil. He was

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

7F Users Group, Advanced GTs, Best Practices / By

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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PROCESS DIAGNOSTICS: Software-as-a-service diagnostics underscores whole-of-plant approach

Advanced GTs, Best Practices, HRSGs / By

Metroscope, a relatively new entrant (2023 launch) to the US real-time powerplant process diagnostic software market, recently conducted a webinar to build more awareness of its technology and to differentiate it from other packages (some of which have been evolving since the early 1990s and can be considered “standard” in combined-cycle plants and in centralized

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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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HRSG need not be a limiting factor in GT upgrade

Advanced GTs, Best Practices, HRSGs / By

By Vignesh Bala, Vogt Power Editor’s note: This is the second of three articles exploring the impacts of gas-turbine upgrades on heat-recovery steam generators. It focuses on “re-rating” of the HRSG after the upgrade to extract maximum benefit from the work. Part 1, which examined the driving factors behind GT upgrades, appeared in August. Part

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ACGTUG: EPRI brings together leading-edge turbine users to drive collaborative research, solutions

Advanced GTs / By

Next meeting: Nov 12-14, 2024  •  EPRI Campus  •  Charlotte, NC Inquiries: ACGTUG@epri.com  •  Details at www.epri.com/events Welcome the latest addition to the worldwide gas-turbine user community: The Advanced Class Gas Turbine Users Group. It was formed by EPRI to focus on issues common to the M501G, M501J, SGT6-6000G, SGT6-8000H, SGT6-9000HL, and other advanced frames

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Case studies on HP economizer tube leaks at Bouchain CCGT

Advanced GTs, HRSGs / By

By Guillaume GROGNET, Maintenance Mechanical Manager, Electricité de France Bouchain CCGT, operated by Electricité de France (EDF), in Northern France was commissioned in July 2016 and has accumulated over 45k operating hours and 650 GT factored starts as of Q4/2023. Due to European grid code and recent grid operation modifications, French and European CCGTs operate

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