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News
Digitally Controlled UPS
Cyberex CyberWave from Thomas & Betts Power Solutions incorporates the Cyberex patented digital static transfer switch design, which increases redundancy and reliability. Additional benefits include a full-color VGA touch screen, which allows for easy operation and monitoring with minimal engagement, as well as Modbus communications and advanced battery management capabilities to ensure accurate system analysis. […]
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Geothermal
140-MW Geothermal Plant Starts Up in New Zealand
One of the world’s largest geothermal power stations was officially opened this May on New Zealand’s North Island. A joint venture between Mighty River Power and Tauhara North No. 2 Trust, the new 140-MW Nga Awa Purua Geothermal Power Station increases geothermal’s share of power in New Zealand to around 14%—a proportion that has more than doubled since 2005.
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News
Submersible Continuous-Duty Electric Compressor
Extreme Outback Products introduced the ExtremeAire Triton, which it says could be the world’s first submersible continuous-duty electric compressor. For uses that include air-suspension inflation, powering pneumatic tools, and actuating air lockers and train horns, the fully sealed Triton has a 100% duty cycle. Crucial components include a 1.5-horsepower fan-cooled motor and other parts shared […]
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Gas
Qatar Opens 2,000-MW Gas Plant
The gas-rich emirate of Qatar, holder the world’s third-largest gas reserves, inaugurated another massive 2,000-MW gas power plant in the industrial city of Mesaieed, south of the capital Doha this May.
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News
Ground-Penetrating Radar
Instrumentation specialist Ashtead Technology has launched the Handy Search, a ground-penetrating radar (GPR) that the company says provides a fast, easy way to examine reinforced concrete, bridges, roadways, tunnels, and buildings for inspection. The Handy Search is also useful for maintenance and quality assurance because it allows users to search for steel reinforcement bars, gas […]
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Business
POWER Digest (July 2010)
Alstom and Schneider Electric Close AREVA T&D Acquisition Deal. Alstom and Schneider Electric on June 7 closed a €2.29 billion (US$2.75 billion) transaction to acquire AREVA’s transmission and distribution arm, AREVA T&D, after obtaining approvals from relevant competition authorities and the French Commission des Participations et des Transferts. A consortium agreement for the joint acquisition […]
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News
Baghouse Filter Leak Analyzer for EPA-MACT
A new continuous particulate emissions monitor and baghouse filter leak analyzer incorporates automatic self-checks (zero and span) to ASTM standards to automate compliance with regulatory requirements for periodic instrument validation. The particulate monitor also features system checks to simplify installation and setup and to improve overall performance. Benefits include stack monitoring, detecting filter leaks, eliminating […]
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Legal & Regulatory
Climate Change: Avoid Political Thickets
A federal judge recently dismissed a lawsuit in which the plaintiffs alleged that defendants’ production of chemicals and electricity had “added to the ferocity of Hurricane Katrina.” The judge’s reasoning reveals the inherent limitations of courts unilaterally initiating policies to address climate change issues.
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News
Differential Pressure Flowmeter
Endress+Hauser announced the Deltatop differential pressure (DP) flowmeter for measuring gas, liquid, and steam in ½-inch to 24-inch pipes. The company said that Deltatop is a complete flow monitoring solution, including an averaging pitot tube, and offers customers the most accurate and reliable DP flow technology in the industry. The flowmeter features precision-machined orifice plate […]
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History
China: A World Powerhouse
It’s no surprise that China leads the world in recent power capacity additions. What may surprise you is the precise mix of options this vast country is relying upon to meet its ever-growing demand for electricity. As a result, this ancient civilization is fast becoming the test bed and factory for the newest generation and transmission technologies.
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News
Air Velocity Sensors
Degree Controls has introduced AccuSense F333 air velocity sensors, a series of low-cost airflow sensors designed for field systems. The AccuSense F333 provides air velocity measurements within the range of 0.2 m/s to 10 m/s (40–2,000 fpm) while maintaining a ±10% accuracy across a temperature range of 15C to 60C with a 2% or better […]
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Legal & Regulatory
TREND: Fire Safety Again Tops Nuclear Agenda
The U.S. Nuclear Regulatory Commission puts fire at the top of its safety concerns, calculating that fire constitutes half of all reactor safety risks, and lately fire safety has again become a major industry issue. For example . . .
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Water
ReACT Reduces Emissions and Water Use
Regenerative activated coke technology (ReACT) is an integrated multipollutant control approach that removes SOx, NOx, and Hg from coal-fired plants by adsorption with activated coke to attain emissions levels found at natural gas–fired plants. One big advantage of this technology is that it uses only a fraction of the water used by conventional wet flue gas desulfurization. A recent license agreement brings this technology to the U.S.
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Commentary
WTE: Next-Generation Sustainable Energy
It is clear that energy use will expand in the future as our population and society’s standard of living increase. Meanwhile, the push toward a sustainable lifestyle requires that all resources be utilized efficiently and sparingly. The National Academy of Sciences has identified paradigm shifts from current processes to an ideal vision centered on renewable energy and an atom economy—defined as maximum incorporation of starting materials into final products. These seemingly disparate paths converge if one considers energy production from municipal solid waste (MSW).
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Commentary
The Politics and Perils of Pork
An "emergency war supplemental" appropriation bill that Congress was considering at this writing has implications for the power industry: The measure includes $9 billion each for new loan guarantees for nuclear power and renewable energy projects.
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News
Carbon Controls Fail Business Case Study
Cap-and-trade programs are featured in at least two U.S. legislative proposals to reduce carbon emissions, usually by around 80% by 2050 using a 2005 baseline. The benefits that accrue from the immense investment required to reach these goals are nebulous and don’t occur until decades after the investment. Based on my back-of-the-envelope analysis, the cost-benefit ratio of these proposals does not pass a cursory cost-benefit analysis.
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Water
Circulating Fluid Bed Scrubbers Bridge the Gap Between Dry and Wet Scrubbers
Circulating fluid bed (CFB) dry scrubbing technologies provide distinct advantages over conventional spray dryer absorber scrubbers for removing SO2 from flue gases. The CFB also competes well against wet limestone flue gas desulfurization processes typically favored for large boilers firing high-sulfur coals. With high SO2 removal rates in a dry treatment process, the CFB scrubber appears to be the best of both technologies: a water-stingy scrubber with high SO2 removal rates.
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Environmental
Determining AQCS Mercury Removal Co-Benefits
The U.S. Environmental Protection Agency is expected to propose an emissions standard for mercury and other hazardous air pollutants emitted by coal- and oil-fired electric generating units in March of 2011. The anticipated rule would require emission control to meet the various standards using maximum achievable control technology, as determined by the prescriptive requirements of the Clean Air Act. In response to the expected rule-making, utilities will be required to make technology decisions in order to ensure compliance. One cost-effective approach to compliance may be the use of “co-benefits” from air quality control systems (AQCSs) already in service that are designed to remove other pollutants.
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Legal & Regulatory
Regulators Embrace Nuclear—Awkwardly
A recent survey finds utility regulators contradicting themselves on the touchy subject of nuclear power. They say they like new nukes, but their actions belie their stated beliefs.
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O&M
New Coating System Extends Life of Cooling Tower
American Electric Power’s (AEP’s) Cardinal Power Plant Unit 3 cooling tower in Brilliant, Ohio, was coated and lined in the spring of 2008 by a team of coatings professionals that included the plant’s project and coatings engineering staff, Sherwin-Williams (coatings supplier), Cannon Sline Industrial (contractor), and OTB Technologies (third-party inspector). The team completed the project in just 11 weeks through damp springtime conditions in the Ohio River Valley.
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Coal
Drax Offers Model for Cofiring Biomass
When it is completed, later this summer, the UK’s Drax Power Station biomass facility will become the largest dedicated cofiring project of its kind in the world. As U.S. coal-fired generators come under increasing pressure to cut emissions and take advantage of incentives to promote power generation from renewables, Drax offers an example of what is possible.
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Supply Chains
DOE Helium Shortage Hits Nuke Security, Oil And Gas Industry
The Energy Department’s failure to recognize an impending supply squeeze for helium-3—a nonradioactive gas produced in the agency’s nuclear weapons complex—has created a national crisis requiring White House intervention and threatening key U.S. nuclear and homeland security programs, a wide range of medical and scientific research activities and development of U.S. oil and natural gas resources, according to testimony before a House subcommittee.
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O&M
New Process Transforms Waste into Product for Controlling Emissions
In April, Solvay Chemicals Inc. commissioned a new facility that uses an innovative process to recover and transform sodium carbonate waste streams into a market-grade sodium bicarbonate used in air emissions control.
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O&M
Use Dry Fog to Control Coal Dust Hazards
Fogging systems have been successfully used in the material-handling industry for more than 30 years to control explosive dust at transfer points. Today, fogging systems are an EPA Best Demonstrated Technology for subbituminous coal preparation plants.
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HR
Wasting Time and Hating the Job
Does wasted work time equal job dissatisfaction? Two studies point in that direction.
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News
Shoring System Uses First Built-In Ladder Supports
Safety is the imperative for any construction project, and Duke Energy’s 630-MW Edwardsport integrated gasification combined-cycle station in Knox Country, Ind., is no exception.
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Environmental
Regulations and Economics Drive Wet FGD Upgrades
Today’s coal-fired power plants face the twin challenges of improving their wet flue gas desulfurization (FGD) systems’ emission control capabilities in order to comply with environmental regulations while at the same time cutting their operational and maintenance costs. Smart strategies for retrofitting existing FGD systems can help plant personnel meet both of these objectives.
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HR
How Clipper Windpower Jump-Started Itself . . . Big Time
Clipper Windpower didn’t have the luxury of a decade or more of product development. Instead, it started big—with a 2.5-MW wind turbine. Here’s the story of how they did it.
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Solar
Abengoa Solar Begins Operation of 50-MW Parabolic Trough Plant
Abengoa Solar in early May began commercial operation of Solnova 1, the company’s first 50-MW parabolic trough plant. Covering 980,000 square feet with mirrors requiring an area totaling 280 acres (Figure 2), it is one of five planned concentrating solar power (CSP) plants to be built at the Solúcar Platform in Spain. All will use a technology developed by Abengoa with experience gained from a trough pilot built in 2007. Solnova 1 will also be equipped to burn natural gas if sunlight is weak.
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Coal
Industry Pivots on Natural Gas, Hails Cap and Trade
At the opening ELECTRIC POWER 2010 plenary session, both the keynote speaker’s address and discussion among the Power Industry Executive Roundtable participants pointed to the renewed appeal of natural gas and proposed cap-and-trade legislation as being potential game-changers for the U.S. power industry.