Onsite – Page 51 – Combined Cycle Journal

I&C Roundtable: Control-system upgrade generates much discussion

This session included a debate on the pros and cons of upgrading control systems versus retaining/maintaining legacy controls. Several users supported the idea of sticking with legacy systems because there’s a vibrant third-party supplier community available for support—including parts and knowledgeable technicians. An operator with Mark VI controls said his plant upgraded to Mark VIe […]

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Auxiliaries Roundtable: A potpourri of discussion topics

Frame 6 / By Team-CCJ

Discussion threads ranged from sulfur buildup in stop/speed ratio valves that could prevent restarting after a unit trip to the value of a flash drum in the continuous blowdown line enabling beneficial use of the steam produced to the value of inlet bleed heat for deicing and unit turndown. Plus others. An attendee reported a

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The Frame 6 value proposition

Frame 6 / By Team-CCJ

John F D Peterson, one of the Frame 6 Users Group’s founders, conducts his highly regarded four-hour introductory course on the 6B the day before the annual conference officially begins. This session is offered by the steering committee to acquaint new members on the (1) history of improvement in both thermal and mechanical performance since

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PowerUsers unveils digital presentation library in advance of 7FUG 2020

7EA Users Group / By Team-CCJ

Over 40 companies serving the CCGT industry have posted recorded technical presentations, a plethora of resources, and specialized contact details only accessible by GT owner/operators at powerusers.org. Vendors listed here are participating in the very first 7F Users Group 2020 Digital Conference set to begin on Tuesday, June 16, at your computer, conference room, or

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Hydrogen: A quick reality check

7EA Users Group / By Team-CCJ

Editor’s note: What follows is a short report from the United States Energy Assn’s (USEA) webinar, “The Role of Hydrogen and Renewable Gas in Decarbonization,” June 12, 2020, moderated by Llewellyn King, executive producer and host, White House Chronicle. Panelists from Guidehouse, which acquired Navigant Consulting Inc in October 2019, were Mark Eisenhower, partner, Energy,

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7F Digital Conference: Week 1 user sessions recapped here

7F Users Group / By Team-CCJ

Week One review. What follows are summaries of user presentations from last Tuesday and Wednesday. They illustrate the value of participation in the 7F Users Group’s virtual conference and next year’s F2F in St. Louis. To dig deeper, speaker PowerPoints will soon be available on the Power Users website to registered owner/operators. Registration is easy

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Working safely in a powerplant with a medical implant

7F Users Group / By Team-CCJ

By some counts, says James E Timperley of J E Timperley Consulting LLC, over 300,000 electronic medical devices—such a pacemakers, defibrillators, cochlear, and neurostimulators—are implanted in Americans annually. Millions of these appliances are in service, covering all age groups in today’s population. This means that perhaps 1% of all people entering a powerplant may have

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Case history: Effects of cyclic duty on air-cooled generators

Best Practices / By Team-CCJ

Editor’s note: This article is based on the presentation, “Frame 6/6A3 ‘minor’ outages turned into majors with field rewinds,” by Jamie Clark of AGTServices Inc at the 2019 meeting of the Frame 6 Users Group. Owner/operators will have the chance to hear Clark’s presentation, “5 Generator Minors Turn Into 3 Generator Majors!!!,” on June 23

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Lawrenceburg: 2019 Best of the Best

Best Practices / By Team-CCJ

Performance, flexibility upgrades boost profitability in dynamic market Lawrenceburg Power operates in the PJM Interconnection. Plant owner Lightstone Generation wanted a reliable, cost-effective upgrade to simultaneously maximize capacity payments and align combustion and hot-gas-path (HGP) inspections at a 32,000-hr maintenance interval. The plant operates in a shale-gas region and can receive fuel from multiple sources

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7F Digital Conference: Week 2 user, vendor presentations recapped here

7F Users Group / By Team-CCJ

Editor’s note: What follows are summaries of user and vendor presentations made last Tuesday and Wednesday. They illustrate the value of participation in both the 7F Users Group’s 2020 Digital Conference and the organization’s upcoming 30th Anniversary Meeting at the Marriott St. Louis Grand, May 24-28, 2021. To dig deeper, PowerPoints or video recordings of

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