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Plant Design
02.16.2010 | By Greg Bierie, R. Todd Swinderman, and Andrew D. Marti
The loading and discharge of conveyor belts is the area where many, if not most, of the problems in solids conveying occur. Fortunately, a new technology provides chutes to accomplish conveyor loading and discharge without blockages while minimizing the dust generated: engineered-flow transfer chutes.... 12.10.2009 | By Bob Giglio
When the Łagisza power plant began commercial operation in late June 2009, it marked the beginning of a new era in the evolution of circulating fluidized bed (CFB) technology. At the heart of this 460-MW plant is the world’s largest CFB boiler, which is also the world’s first once-through unit supercritical CFB boiler.... 08.03.2009 | By Greg Bierie
Reducing dust from coal conveyors has moved from a housekeeping chore to a safety challenge, especially with Powder River Basin coals. Here’s what you need to know about the latest coal-handling system design.... 05.29.2009 | By George Lobsenz
The UK has all but doomed new coal-fired capacity by simultaneously setting binding carbon reduction goals and by requiring carbon capture and sequestration (CCS) of carbon emissions from new mid-size coal-fired power plants. Existing plants will also be required to retrofit their plants when CCS technology is demonstrated, now estimated to happen by 2020.... 05.29.2009 | By Chris Holly
FirstEnergy has announced plans to repower two coal-fired units at the R.E. Burger plant to burn biomass. Conversion of the two units, expected to be completed by 2012, gets the utility off the hot seat with the EPA for alleged Clean Air Act violations.... 05.29.2009 | By K. Wendelberger, and B. Meerbeck, and B. Lamb
Recent improvements in the performance of steam power plants have been achieved with advanced computerized controls. These new control schemes not only reduce fuel consumption and make the plant much more responsive, but they also can significantly decrease start-up commissioning time and cost.... 03.31.2009 | By Jayant Khambekar, Roger Barnum, and Keith Geisel
Many coal-fired power stations built before 1980 were designed for handling relatively easy-handling lump coal. If your plant’s bins, bunkers, and silos aren’t up to dealing with today’s range of more variable coal properties, this case study shows one way to minimize coal flow problems.... 01.30.2009 | By Ben Bogner
The 200-MW Dallman Unit 4 under construction in Springfield, Ill., is expected to cost approximately 20% less to operate per megawatt-hour than the most efficient of the three existing Dallman units. A composite stack liner is one element enabling that cost savings.... 01.30.2009 | By George S. Potter, PE
The flue gas desulfurization process requires the use of aggressive liquids that significantly shorten the life of typical construction materials such as metals and concrete. That makes fiberglass-reinforced plastic (FRP) the material of choice for many components in a typical flue gas desulfurization (FGD) system.... 11.07.2008 | Richard E. Conn, John Grusha, and Gary Norman
Replacing existing, older-generation controlled-flow split-flame burners on Unit 1 at the Seminole Generating Station with Foster Wheeler’s new low-NOx burners and overfire air additions reduced NOx emissions. This case study provides all the details and post-installation test results....
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