Category Archives: 7F Users Group

NAES fills reliability gap at the plant/grid interface

Last year, NAES Corp, well known to CCJ ONsite readers as a leading third-party plant O&M services provider, acquired Gridforce Energy Management LLC, extending NAES’ services into the transmission and distribution arena. Gridforce’s genesis was at Duke Energy North America (DENA) back in the late 1990s when the industry was driving towards unbridled competition.  For […]

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ACC Users Group publishes tube cleaning guidelines

The Air-Cooled Condenser Users Group (ACCUG), established by NV Energy in 2009, has recently publish technical guidance document ACC.02, Guidelines for Finned Tube Cleaning in Air-Cooled Condensers. This document includes fundamental principles, operational factors that can limit efficiency, types of tube fouling, debris removal methods and examples, cleaning frequency, as well as safety and environmental […]

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Tricks of the trade: Limit output to maintain reliability of legacy Frame 5 engines

A valuable turbine operating tip provided by Dave Lucier, founder and GM of PAL Turbine Services LLC, applies to GE Frame 5 gas turbines—most specifically the MS5001D, K, L, and LA packaged powerplants manufactured between 1961 and 1970 and serving in peaking and emergency-power applications. Some users operating these engines have found that reliability issues […]

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HRSG January O&M tip: Drain valves

Operate drain valves on different HPSH harps simultaneously, not in sequence, prior to and during hot, pressurized startups. Most operators know it’s important to drain the high-pressure superheater during startup before steam flow is initiated to prevent accumulated water at the bottom of the harps from migrating up some tubes—quenching them and the upper headers/piping. […]

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Experiences shared by colleagues may be the most important reason for attending the upcoming 7F Users Group meeting

The 7F Users Group’s Annual Conference and Vendor Fair is less than three weeks away—May 7-11, at the Atlanta Marriott Marquis. If you’re still debating whether to attend, it’s time to get off the fence and register for what surely is the most important meeting in 2018 for owner/operators of GE 7F gas turbines. You […]

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Doosan takes a high-profile position in aftermarket services

In today’s topsy-turvy world of electric-power generation and delivery anything can happen, and it does. Recall that only a couple of years ago, the OEM with the largest position in the generation sector purchased a major competitor and tried to take by storm the industry’s aftermarket business—worldwide. That might have led some to conclude that […]

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Wolf Hollow offers early glimpse into H-machine performance

Two of the biggest, bad-ass gas turbines currently operating in the US are proceeding through their paces at Exelon Generation’s 2 × 1 Wolf Hollow II facility, Granbury, Tex, southwest of Fort Worth. CCJ editors stopped in to visit with Plant Manager Jeff Klier during a recent swing through the state. Of utmost importance to […]

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