7EA Users Group – Page 3 – Combined Cycle Journal

FILM FORMING SUBSTANCES: Conference focuses on research required to advance use of FFS

By Steven C Stultz, Consulting Editor The seventh annual International Conference on Film Forming Substances (FFS), conducted in Prato, Italy, March 26-28, 2024, was developed and supported by the International Association for the Properties of Water and Steam (IAPWS). The meeting drew 50 participants from 16 countries—including 10 plant owner/operators and representatives from a dozen […]

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Persistence key to finding gremlin impacting starting reliability

7EA Users Group / By Team-CCJ

Legacy Turbine Doctor, No. 2 in a series By Luke Williams, PE, Consultant www.geLegacyGasTurbineSupport.com An MS7001B engine with Mark I Speedtronic™ controls failed to start reliably for about a year. Failure-to-start causes included loss of flame, trip at Complete Sequence to full-speed/no-load (FSNL), trip on 95% speed (14HS), TNH (high-pressure shaft speed) bog-down, and unknown.

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EMISSIONS CONTROL: How exhaust-gas distribution can affect SCR performance

7EA Users Group / By Team-CCJ

By Vaughn Watson, Vector Systems Inc The efficiency and long-term performance of an SCR depends largely on several key design considerations regarding various system components. When complex NOₓ reductions on combined cycles are required, there are critical values related to the fluid distribution in the system which must be addressed to ensure success. While the

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SPECIAL REPORT: GE Legacy Turbines (Frame 5, 6B, 7E)

7EA Users Group, Frame 6 / By Team-CCJ

2024 technical program highlights The Legacy Turbine Users Group’s third annual conference and vendor fair is two months away. With the steering committees for the 7EA, Frame 6B, and Frame 5 Users Groups (sidebar) still working on their agendas and lining up speakers, there aren’t many program details to share at this point. Key aspects

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Are your GE B/E-Class hot parts and rotor really near ‘end of life’?

7EA Users Group, Alstom Owners Group, Frame 6 / By Team-CCJ

ASK THE LEGACY TURBINE DOCTOR By Luke Williams, PE, Consultant www.geLegacyGasTurbineSupport.com Editor’s note: Luke Williams and his business partner, Don Melsheimer, have decades of experience supporting owner/operators of GE gas turbines (MS5001, 6B, 7EA, F, and FA frames, plus LM2500 and 6000 aeros) requiring troubleshooting assistance with their control systems (Fuel Regulator through all

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NAES names Dobler president/CEO, makes other executive appointments

7EA Users Group, Alstom Owners Group, Frame 6 / By Team-CCJ

NAES Corp, Issaquah, Wash, considered by many the power-generation industry’s largest independent services provider, named Mark S Dobler president and CEO in early March. The company announced other appointments at that time as well. Many readers will remember Dobler as having served in a wide range of management positions in both the powerplant ownership and

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Regenerating a refinery cogen’s Frame 7EA rotors

7EA Users Group, Frame 6 / By Team-CCJ

Phoenix Rotor™ gives facility the best of both worlds KEY POINTS Units returned to 200,000 factored fired hours Lengthy outages avoided CapEx savings of around 40% compared with a new rotor from the OEM THE CHALLENGE: Going beyond rotor end of life Gas turbine rotors have a finite lifetime. Heavy-duty gas turbine rotors in particular,

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The basics of testing legacy generators

7EA Users Group, Frame 6, Generator Users Group / By Team-CCJ

AGT Services Inc’s Jamie Clark frequently is asked to present at user group meetings given his deep knowledge of generators. At last year’s (2022) Frame 5 Users Group conference, Clark conducted a well-received workshop on generator testing, inspection, and condition assessment which is of value to most participants in the Legacy Turbine Users Group—owner/operators of

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Webinar Series: Machine learning improves CCGT availability, capacity, and efficiency

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 Team-CCJ

Case studies on generation M&D, predictive analytics, capacity/fuel demand forecasting As a follow-on to its popular 2023 webinar series, Primex presents a new and improved series to help power plant managers understand machine-learning basics and learn how this rapidly evolving technology can improve power plant availability, capacity, and efficiency. Each webinar includes a 20-30 minute

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Nineteen 2023 meetings focusing on user information needs that you should consider attending

February 19–23, 501F Users Group Annual Meeting, Reno, Nev, Peppermill Resort & Spa. Details/registration at www.501fusers.org as they become available. Chairman: Ivan Kush, Cogentrix Energy Power Management. Contact: Jacki Bennis, jacki@somp.co. February 19-23, 501G Users Group Annual Meeting, Reno, Nev, Peppermill Resort & Spa. Meeting is co-located with the 501F Users Group conference. Details/registration at

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