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O&M
Lessons Learned from a Hydrogen Explosion
On January 8, 2007, a hydrogen explosion at the Muskingum River Power Plant’s 585-MW coal-fired supercritical Unit 5 caused one fatality, injuries to 10 other people, and significant damage to several buildings. The explosion occurred during a routine delivery of hydrogen when a hydrogen relief device failed, which allowed the contents of the hydrogen tank to escape and be ignited by an unknown source. This article covers the findings of the incident investigation and the actions the plant has taken to prevent a reoccurrence.
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Coal
Firstenergy to Convert Coal-Fired Burger Plant to Biomass
Confronted with a district court ultimatum that would have forced it to install expensive pollution controls or close two coal-fired units at its R.E. Burger Plant in Shadyside, Ohio, Akron-based FirstEnergy Corp. announced in April that it would convert them to biomass. When the $200 million retrofit is complete, as is expected by 2013, the Burger Plant will likely be one of the largest biomass facilities in the U.S.
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Coal
Powering the People: India’s Capacity Expansion Plans
India has become a global business power even though hundreds of millions of its citizens still live in poverty. To sustain economic growth and lift its people out of poverty, India needs more — and more reliable — power. Details of government plans for achieving those goals demonstrate that pragmatism may be in shorter supply than ambition and political will.
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Solar
Interest in Solar Tower Technology Rising
Though solar thermal tower technology has been around since the 1970s, to date, only one plant in the world commercially generates electricity: Abengoa Solar’s 11-MW PS10 tower just outside Seville, in Spain’s Andalucía desert has been grid-connected since early 2007. Because the technology relies on heat from solar energy that is reflected by mirror arrays (heliostats) onto a tower-mounted receiver, installations tend to be site-specific, expensive, and high-maintenance.
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Business
The Foreign Investment Factor (supplement to Powering the People: India’s Capacity Expansion Plans)
Recognizing that the long-term sunk cost, long project planning and construction timeframe, and high-risk portfolio make it difficult for private investors to raise funds whose maturity matches project completion dates, the Indian government has since 1991 allowed 100% foreign direct investment in the power sector.
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O&M
Boiler-Tuning Basics, Part II
Boilers have enormous thermal mass and are relatively slow to react. Turbines are nimble and quickly answer an operator’s command. Coordinating an entire plant requires an intimate knowledge of both systems and selecting the right logic tools to bring them together.
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Hydro
Tidal Barrages Could Power 5% of UK
Barrages across the Solway Firth, Morecambe Bay, and the Mersey and Dee estuaries in the northwest UK could provide more than 5% of the nation’s electricity and meet half the region’s electricity, a study by engineers at the University of Liverpool has found.
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Nuclear
Nuclear Uprates Add Critical Capacity
New-generation nuclear plants may be having trouble getting out of the gate, but that doesn’t mean that nuclear capacity additions are at a standstill. In fact, the 104 operating nuclear units in the U.S. have added substantial new capacity in the form of reactor and plant uprates over the past 20 years. Power uprates alone have added more than 5,600 MW since 1998 — the equivalent of five new nuclear plants.
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Coal
Geologists Map Carbon-Trapping Rock Formations
U.S. scientists concerned about carbon dioxide (CO2) leaks from sequestration attempts have been pursuing the option of natural chemical reactions within the earth to turn the carbon back into a solid, and they have identified an abundant supply of large rock formations around the world that could be used a vast sink for the heat-trapping gas.
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Nuclear
Birth Pangs of the Nuclear Renaissance
The much-ballyhooed U.S. nuclear renaissance, with a few exceptions, is running late, thanks to the usual Washington bureaucratic quagmire plus the added risk resulting from crumbling financial markets. The future doesn’t look much brighter. The poor outlook for Yucca Mountain and the new administration’s general indifference to nuclear power have made a rebirth of the nuclear industry an even higher-risk proposition than before.