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Operations & Maintenance
07.01.2007 | Alice Landers is a communications representative in Westar Energy’s Corporate Communications department.
Lawrence Energy Center (LEC) proudly hosted about 60 representatives of the Powder River Basin Coal Users’ Group (PRBCUG) at its July 24th open house, luncheon, and plant tour. LEC was named the PRBCUG’s 2007 Plant of the Year at this year’s... Coal Plant O&M: Smart Sootblower Tailors Cleaning to Need for It / Blending's Impact on Coal Quality
07.01.2007 | By Douglas J. Smith, IEng
The 1990 amendments to the Clean Air Act require coal-fired power plants to reduce their emissions of the pollutant SO2. To do so, many have switched to, or are considering switching to, Powder River Basin (PRB) coal. Unfortunately, PRB coal has a tendency to leave excessive and tenacious deposits on boiler heat-exchange surfaces. Complicating the problem, the distribution of the deposits is far from uniform.... 05.01.2007 | Douglas J. Smith, IEng
During 2005, about 150 million tons of coal were transported to power plants by hopper barges plying U.S. inland waterways. With coal-fired plants expected to continue producing 50% of America’s electricity, coal barge traffic is not likely to fall off... 05.01.2007 | Gerald Pargac is performance manager of LCRA’s Fayette Power Project. He can be reached at gerald.pargac@lcra.org. Doug Hart is manager, firing
The Fayette Power Project (FPP, aka the Sam K. Seymour Power Station) is a three-unit, coal-fired generating plant sited near La Grange, Texas (Figure 1). Units 1 and 2, each with a nominal rating of 600 MW, are co-owned by the Lower Colorado River Authority... 05.01.2007 | C.A. Penterson is manager of fuel equipment design for Riley Power Inc. He can be reached at cpenterson@babcockpower.com. D.E. Dorman and B. Courteman
Reducing NOx emissions from large utility coal-fired boilers has been a primary focus of the U.S. power generation industry since passage of the 1970 Clean Air Act and subsequent legislation. By the early 1990s, nearly all such boilers had installed some form... 03.01.2007 | Dr. Robert Peltier, PE, Editor-in-Chief
Carbon capture and sequestration (CCS) have elbowed their way into the nation’s lexicon with the rise in concern over climate change. But few of the journalists who are hyping global warming have taken the trouble to learn the ins and outs of producing... 03.01.2007 | Douglas J. Smith, IEng, Consulting Editor
As gencos seek to improve plant reliability and availability, many are turning to on-line condition monitoring for help. Huge advances in the capabilities of on-line diagnostics have occurred over the past five years. By using this technology, plant personnel... 03.01.2007 | Edward Bowes, PE, Dominion Resources; Robin B. Rhodes, Alstom Power Inc., Air Preheater Co.; Dr. Bernard T. Hamel, Marsulex Inc.; and Dr. Steven A. Be
Dominion Generation (DG) has installed selective catalytic reduction (SCR) systems on many of the large coal-fired generating units it operates. The catalyst used has an SO2 to SO3 oxidation rate of about 1%, which roughly doubles the SO3 concentration at the... 03.01.2007 | James T. Murphy, a senior environmental engineer with Science Applications International Corp., can be reached at james.murphy@sa.netl.doe.gov. Thomas
Flyash and condensed sulfur trioxide (SO3) are the major components of flue gas that contribute to the opacity of a coal plant’s stack emissions (stack opacity). Estimates are that 75% to 85% of bituminous coal-fired plants with selective catalytic... 01.01.2007 | Kennedy Maize
To borrow shamelessly from Charles Dickens, one of my favorite authors, for coal in 2006, "It was the best of times, it was the worst of times." No Escape The year began in horror. On January 2, most likely a result of a severe lightning strike...
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