Onsite – Page 62 – Combined Cycle Journal

Diaphragm dishing most severe in steam turbines installed during the last three decades

The “Diaphragm Dishing Issues” presentation by Steampath Engineer Jeff Newton in MD&A’s Spring 2021 Webinar Series (February 18) addressed permanent axial distortion of steam-turbine diaphragms, commonly known as dishing. The effect is usually caused by deficiencies in main weld depths, weld materials, welding processes and/or steampath design with the maximum movement at the horizontal joint […]

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European HRSG Forum shines spotlight on tube failures, cycle chemistry, materials issues

Co-Chairs Barry Dooley of Structural Integrity and Bob Anderson of Competitive Power Resources hosted 90 participants from 17 countries at EHF2021, a virtual event conducted May 18 and 20. More than 60% of the attendees were from 15 generating companies. The 18 presentations made during the meeting covered new information and technology related to HRSGs, plus

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State of the Turbine World: Recorded presentations by Mark Axford, Tony Brough, and GridSME

The gas turbine world had to wait until June 22 of the Western Turbine Users Inc’s (WTUI) 2021 virtual conference for the session billed by the independent organization of gas-turbine owner/operators as “Axford & Friends.” But the wait was well worth it. Houston-based Turbine Consultant Mark Axford is a crowd favorite at this meeting, having

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Grid meltdown forces cold-weather prep to front burner

If the CCUG 2021 Day One roundtable on cold-weather preparation is any guide, winterization continues to vex plant personnel. Many of the issues can be traced to inadequate design bases and insufficient equipment. However, the root cause appears to be building “outdoor” facilities in locations which clearly require far better protection against protracted frigid conditions.

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Management of compliance risks focus of NAES’ 2021 NERC conference

Why would NAES Corp, the largest third-party O&M services provider to combined-cycle facilities, run a three-day conference on NERC-related issues and compliance for its people and select clients and industry stakeholders? For one thing, NAES has 130 plants under its purview and supports over 100 plants outside its portfolio. Then you might ask: Why does

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Commentary: Industry suffers consequences from cold-weather-ops design decisions

You can spend a lot of quality time pointing fingers towards whom or what was to blame for the cold-weather issues experienced in several electricity markets—most notably Ercot—during February 2021. But no question, many gas-fired plants and their fuel suppliers were ill-prepared for the sustained cold weather. Lessons that may have been learned during previous

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EUROPEAN HRSG FORUM: International conference, a virtual event, May 17-22, 2022

The Eighth International European HRSG Forum (EHF 2022) will be conducted virtually May 17-19, 2022. Format: A three-hour program in English each day, beginning 9 a.m. Central European Summer Time (4 a.m. US East Coast time) and concluding at noon CEST. Call for presentations: This conference will feature both invited and contributed technical papers. Please

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FILM FORMING SUBSTANCES: International conference, a virtual event, March 22-23 and 29-30, 2022

The Fifth International Conference on Film Forming Substances (FFS 2022) will be conducted virtually March 22-23 and 29-30. Format: A three-hour program in English each day, beginning 9 a.m. Central European Time (4 a.m. US East Coast time) and concluding at 12:30 p.m. CET. The major themes of this event are dedicated to advancing the

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