POWER

Top Plant: From tall skyscrapers and flashing neon signs to Buddhist temples and pagodas, South Korea is a mixture of the new and old Asia. Doing its part to help modernize this country, the Boryeong Thermal Power Complex operates six coal-fired 500-MW units that provide electricity to power South Korea’s economic growth. One of the important reasons for this facility’s overall success is its operational reliability. An example of this is Boryeong Unit 3’s outstanding achievement of 3,000 days of trouble-free operation.

A utility evaluated various methods of obtaining a NO_x reduction of at least 30%, as required by upcoming regulations for its boiler, which originally produced 0.54 lb of NO_x/million Btu at 410 MW full load. Nalco Mobotec engineers performed a computational fluid dynamics (CFD) simulation of the boiler to first understand the boiler’s combustion process and then determine the most economical method to achieve the required NO_x reduction.

Top Plant: Alliant Energy’s Dubuque Generating Station is a fine example of why small doesn’t mean insignificant in the power generation industry. This winner of the EUCG Best Performer award in the small plant category shows that its operating excellence towers over that of many larger and much newer coal-fired power plants.

As fluid passes through Exact Flow’s new DX-DL dual-rotor turbine flowmeter, the dual rotors become hydraulically coupled due to their counter-rotation. Not only does this allow the rotors to overcome the inertia and drag that typically affect single-rotor turbine flowmeters, it also extends the flow range to 500:1—five times the 100:1 flow range of a […]

The United States is used to transporting fuels to electric generation centers that are close to where the power supply is needed. We see trains carry coal by the carload from resource-rich areas to generation centers across the country. Natural gas is distributed through pipelines. Even uranium is transported to supply our nuclear stations. However, […]

Enclosure manufacturer Rittal Corp.’s latest products are designed to be incorporated into electrical systems to help ensure safety against arc flash hazards. Data interface flaps, shown here, provide rapid system access via integrated USB, SUB-D9 RJ 45, and NEMA 5-15 sockets when needed. The affected enclosure remains closed and is thereby protected from ambient influences […]

Republican presidential candidate John McCain made reference to the word “fight” 25 times during his September 4 nomination acceptance speech. While watching McCain’s histrionics, my mind wandered back to another historic fight—the “Rumble in the Jungle.” Muhammad Ali, arguably the best boxer who ever stepped into the squared circle, was pitted against then-World Champion George […]

GE Sensing & Inspection Technologies’ new family of ultrasonic flaw detectors incorporates conventional and phased array ultrasound technology in three upgradeable models: Phasor CV, Phasor 16/16 Weld, and Phasor XS. Each solution, designed for applications ranging from corrosion monitoring to defect detection and sizing, is compliant with all major inspection codes. The Phasor XS (shown […]

Top Plant: CPS Energy’s J.K. Spruce Power Plant, Unit 1 was recently recognized by the EUCG Fossil Productivity Committee as the best performer in the large coal plant category over the 2002-2006 evaluation period. The competition was tough, with more than 80 plants in the running, but Unit 1 emerged as the clear winner by earning top points for high plant reliability and very low nonfuel O&M costs.

In the wake of a recent federal case, large power plants are off the hook for now as far as complying with the U.S. Environmental Protection Agency’s (EPA’s) 2004 rule intended to protect fish and other aquatic organisms by controlling cooling water intake practices.

An advanced seal technology for hydraulic bolt tensioners recently developed by UK-based Boltight Ltd. takes advantage of the latest composite materials to eliminate oil leakage while allowing the tensioning piston to be retracted more easily after use. The new seals are a two-piece self-energizing design with an “O” ring made from a self-lubricating and durable […]

No U.S. federal standards exist to limit worker exposure to hand-arm vibration (HAV), but the National Institute for Occupational Safety and Health suggests that high HAV acceleration levels (5-36 m/s2) can cause physical effects—and even permanent injury—if left unchecked and untreated. A new series of triaxial accelerometers launched this August by PCB Piezotronics’ Larson Davis […]

U.S. Secretary of State Condoleezza Rice and Pranab Mukherjee, her Indian counterpart, signed a pact Friday that allows U.S. equipment and service providers to support India’s plans to increase the country’s nuclear capacity.     The accord seals the “123 Agreement,” an historic deal that lifts a 34-year-old ban on U.S.-Indian civilian nuclear trade. After three […]

Hawk Measurement Systems has launched a new line of “fourth generation” sonar transducers designed for improved sensing of interface levels in clarifiers and thickeners. The new transducer designs include three to seven sonar crystals mounted in a single head. Each sonar array produces a concentrated sonar beam, providing more emitted power and collecting more returned […]

How often do you get a clash between two great Lone Star icons?

After an extensive public process, the Virginia State Corporation Commission (SCC) last week approved construction of a 500-kV transmission line project running through the northern part of that state.   TrAILCo’s $850 million project—named the Trans-Allegheny Interstate Line (TrAIL)—calls for construction of a new 500-kV line extending from southwestern Pennsylvania through West Virginia and into […]

Kennedy Maize
Desperate to score points in a crucial state where they are in the double-digit dumps, the Republican McCain-Palin presidential ticket rolled out their heartfelt support for “clean coal technologies” at a rally in Scranton, Pa., this week.

A twist on an old technique, flue gas recirculation, helps prevent slagging in the upper furnace and convective pass, according to pilot testing recently completed by APTECH CST and the Southern Research Institute. The technology—along with a companion technology for furnace sorbent and urea injection for SO₂ and NO^x control—could help owner/operators of smaller, older coal-fired plants meet emissions limits at a reasonable cost.

The U.S. Department of Energy (DOE) last week awarded military-industrial giant Lockheed Martin a cooperative agreement contract worth $1.2 million to demonstrate innovative generation technologies that use the ocean’s thermal gradient.    Ocean Thermal Energy Conversion (OTEC) uses temperature differences of 36 degrees F or more between warm surface water and cold deep seawater to […]

Software ranges from shrink-wrapped products available “off the shelf” to custom corporate implementations of enterprise systems that require sessions with shrinks to keep everyone sane. Regardless of its complexity, every piece of software a plant uses, or interfaces to, poses critical issues that require life-cycle management. Although functionality has always been the chief specification for software, plants must pay far more attention to long-term quality issues. These two concerns are often at odds with each other.

PPL Corp. on Friday submitted an application to the U.S. Nuclear Regulatory Commission (NRC) for a license to build and operate a new nuclear plant—the 17th received by the agency so far.   The company has proposed in its combined construction and operating license (COL) application to build the Bell Bend nuclear plant close to […]

Most of today’s operating coal plants began service at least a generation ago and were designed to burn eastern bituminous coal. A switch to Powder River Basin coal can stress those plants’ boiler systems, especially the pulverizers, beyond their design limits and cause no end of operational and maintenance problems. Many of those problems are caused by failing to maintain good fuel fineness when increasing fuel throughput.

Representatives from both presidential campaigns engaged in a spirited debate about their candidates’ approaches to solving the nation’s energy problems at the Massachusetts Institute of Technology (MIT) on Oct. 6. Among the notable distinctions were that John McCain favors leaving energy decisions up to the states while Barack Obama calls for significant regulations and investment […]

An increasing number of low-pressure steam turbines—especially at supercritical fossil units—have experienced stress corrosion cracking in the blade attachment region of their low-pressure rotors. Approaches to solving this problem range from redesign of the attachment and blade replacement to in-situ weld repair. Regardless of the procedure selected, the solution must completely restore the turbine performance while minimizing outage duration.

What does human metabolism have in common with coal combustion? Quite a bit, it turns out, say researchers at the National Energy Technology Laboratory (NETL) who are studying chemical looping combustion (CLC) involving coal gasification, an emerging technology for clean energy production from fossil and renewable fuels.

Top Plant: Not all coal-fired power plants are constructed by investor-owned utilities or independent power producers selling to wholesale markets. When Newmont Mining Corp. recognized that local power supplies were inadequate and too expensive to meet long-term electricity needs for its major gold- and copper-mining operations in northern Nevada, it built its own generation. What’s more, Newmont’s privately owned 200-MW net coal-fired plant features power plant technologies that will surely become industry standards. Newmont’s investment in power and technology is also golden: The capital cost will be paid back in about eight years.

Worldwide energy consumption is projected to grow 50% between 2005 and 2030, driven by robust economic growth and expanding populations in the world’s developing countries, the U.S. Energy Information Administration (EIA) said in a reference case projection from its International Energy Outlook 2008 in June.

It’s gridlock on the road to the U.S. nuclear renaissance. Electric companies and consortia – 15 in all so far — are asking the U.S. Nuclear Regulatory Commission for combined construction and operating licenses for 24 new nuclear units under the terms of the 2005 Energy Policy Act. The companies are all seeking the loan […]

President Bush on Friday signed into law a measure to renew critical energy tax incentives that had been set to expire at the end of this year. The measure, which gained new life after a political impasse had left its future uncertain only the week before, was one of many added to the financial bailout […]

UK Prime Minister Gordon Brown last week created a new government department for Energy and Climate Change (DECC) as part of his latest cabinet shuffle. The new entity will take on several issues affecting the UK power industry, including soaring wholesale prices resulting from a squeeze in generating capacity, the nation’s crumbling power infrastructure, and […]