Team-CCJ

Minimize growth of ‘non-cash crop’ in your cooling water system

A combination of ultrasonic energy, AM radio-frequency waves, and sun shades managed to tame severe algae growth in the cooling tower at River Road Generating Station, according to Operations Manager Justin Hartsoch, GE Gas Power O&M. He told participants in the 2021 conference of the Combined Cycle Users Group (virtual) that algae blooms became a

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Weld repair clinic particularly valuable to users with limited HRSG experience

You’ll want to watch the video below from Bill Kitterman’s “Tube Repair Clinic: The Good, the Bad, and the Ugly,” even if just to see the pictures of the “uglier” and the “ugliest” tube-to-header welds (photos). In true photojournalism fashion, Kitterman, head of Bremco Inc, now part of SVI Industrial, described six different styles of

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Special technical presentations to steam-turbine users focus on maintenance, lubricants, insulation, D11 upgrades

Presentations made by MD&A, Shell Lubricant Solutions, ARNOLD Group, and EthosEnergy Group to owner/operators participating in Weeks Three and Four of the virtual STUG2020 conference are summarized below. You can access the recordings and PowerPoints on the Power Users website. MD&A: Using turbine performance to improve your maintenance strategy This presentation by James G Miller,

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Owner/operators share experiences on repair of blade damage, casing cracks, etc, at final sessions of STUG2020

If you have never attended a STUG event, the summaries of user presentations from Week Three and Four of the 2020 virtual meeting in this issue of CCJ ONsite will encourage your participation in future in-person, live events. The information shared at these forums, vital to your professional development and your plant’s success, is available

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Global suppliers tout upkeep, repair, upgrade solutions for GTs, HRSGs, BOP systems

Unlike many user-group events, the 2021 Combined Cycle Conference for the Middle East/North Africa (MENA) region began with a primer on combined-cycle facility design, which set the stage for detailed presentations on gas-turbine, steam-cycle, and balance-of-plant upkeep, repair, and upgrade techniques and technologies. Perhaps the only major subsystem omitted was steam/water treatment for maintaining proper

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OPC’s Doyle Energy Center converts generator coolant from hydrogen to helium

Doyle Unit 1 is a legacy GE 7B gas turbine with a 64-MVA/14.4-kV, 30-psig hydrogen-cooled generator. A thorough investigation of the engine by Oglethorpe Power Corp engineers revealed degradation of its asphalt insulation and estimated remaining life at less than two years. Several equipment condition and operational performance gaps with the hydrogen cooling system also

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