POWER

Bernard’s new customizable W-series water-cooled MIG guns and water-cooled Centerfire consumables are designed to meet the wide-ranging needs of high-amperage, water-cooled metal inert gas (MIG) applications. The W-Guns (shown here) are durable and may be customized. Users can choose neck styles, cable lengths, handle styles, consumables, and direct plugs. The W-Guns are rated to 600 […]

In a typical steam power plant, the boiler feedwater (BFW) pump takes suction from the deaerator (DA) and discharges high-pressure water to the boiler through the feedwater heaters. During normal operation, the DA is supplied with steam turbine extraction steam to mix with and heat the feedwater.

Building and engineering software designer Autodesk Inc. announced the availability of AutoCAD Plant 3D 2010, a product that it says brings the benefits of model-based design to mainstream plant design projects. The vast majority of plant design and engineering projects support the operation, maintenance, and expansion of existing facilities. These projects are typically executed by […]

Congress and various states are considering a fundamental restructuring and regulation of our energy policy. Any such effort should be based on facts, but legislators, unfortunately, incline to myths, such as the notion that most of our energy comes from oil.

LUDECA’s new CENTRALIGN ULTRA was specifically developed for the alignment of steam and gas turbines. The system precisely aligns internal elements with upper halves for distances up to 133 feet. Accurate bore measurements can be acquired and wirelessly transmitted without interrupting other processes, saving time over traditional methods like piano wires, micrometers, and optical instruments. […]

Given delays and cancellations of new generating capacity, pushing the existing power generation fleet is more important than ever. At ELECTRIC POWER 2009, multiple presentations explored the premise that an active knowledge management strategy — requiring a blend of digital and human elements unique to each power plant — will help you extract the most productivity from your assets.

ESAB Welding & Cutting Products launched the TAF 801/1251 square wave AC power sources for submerged arc welding. The power sources, designed to be used with the fully digital PEK controller, convert the secondary voltage from a sinus wave — via a thyristor-controlled rectifier bridge — to a square wave arc voltage with excellent arc […]

The race is on to claim the title of "most efficient coal-fired power plant" on the planet. However, it’s tricky identifying finalists because of the widespread misuse of the term "efficiency" and all those nagging assumptions. Let’s first establish clear definitions and then identify the title contenders.

The first six of a dozen high-capacity turbines were commissioned in mid-December at the 60-MW Alpha Ventus project in the North Sea, Germany’s first offshore wind park. All 12 turbines of the €250 million project are already standing, put up in just seven months by a consortium of EWE, E.ON, and Vattenfall — formally known as Deutsche Offshore Testfeld und Infrastruktur (DOTI).

A September 2005 power outage that affected two million people in the California Southland was initiated when workers cut live electrical wires after consulting erroneous design drawings, but it was exacerbated by a number of extant problems with local generation and protection configurations.

As equipment ages in fossil-fueled power plants, component wear leading to machinery failure increases as a result. Extending equipment life requires increased attention to maintenance, and one way to improve maintenance planning is to detect faults prior to failure so maintenance can be scheduled at the most cost-effective, opportune time. This type of strategy benefits from the use of additional sensors, and wireless ones can often be installed with the least time and cost.

More than 60 floating power stations are in operation around the world, deploying some 4 GW at continental shores where electricity is most needed. Though these feature a variety of power sources (including nuclear, gas, and heavy fuels), most are power barges — they do not have their own propulsion systems and would have to be towed to desired locations.

In 1999, the Engineering Equipment and Materials Users’ Association (EEMUA) released its general guide to the design, management, and procurement of alarm systems for industrial plants. The guidance document (EEMUA 191), however, is vague about applications to specific facilities, such as electric power plants. This article specifies EEMUA 191 standards and practices applicable to the electric power industry and spells out specific variations in alarming practices that are tailored for today’s power plants.

High-voltage direct current transmission (HVDC) has come a long way since 1882 when the first of its type carried power from Miesbach in Bavaria to an electricity exhibition in Munich, 57 kilometers (km) away, at a mere 1,400 V. Last December, just before the world ushered in the new decade, Siemens Energy and grid operator China Southern Power Grid put into operation the first pole of a transmission link between the southern Chinese provinces of Yunnan and Guangdong, a 1,418-km ultra-high-voltage direct current (UHVDC) system. That line has a transmission capacity of 5 GW, and it operates at a voltage of 800 kilovolts (kV) — a world record.

Existing nuclear power plants are increasingly facing the conversion to digital instrumentation and controls technology. Meanwhile, new nuclear designs have digital technology integrated throughout the plant. Digital controls will soon be inevitable, so how do we make the transition as smooth as possible? Without losing focus on the technical solutions, organizations have to pay attention to the nontechnical issues as well.

News items of interest to power generation professionals.

It’s a digital world, and even aging power plants are experiencing the benefits of digital controls technologies. The following cover stories provide insight into the latest options and inspiration for your own plant controls projects.

California’s Air Resources Board (ARB) in late November issued the nation’s first blueprint for a broad-based cap-and-trade program to control greenhouse gases (GHG). If they take effect in 2012 as proposed, the regulations in ARB’s preliminary draft will apply to 605 of the state’s largest stationary GHG emitters, including power plants and industries, as well as electricity imports. Starting in 2015, the regulations will also apply to fuel suppliers and smaller stationary GHG emitters such as homes and commercial businesses.

"It’s anti-renewables" is becoming a familiar refrain voiced before public utility commissions, air quality management districts, and other public agencies with jurisdiction over the siting and operation of new fossil-fueled electric generation projects. The survival — and, in some cases, expansion — of legislatively mandated renewable energy requirements, tax incentives, and outright subsidies through the recent economic downturn has further encouraged opponents of new fossil-fueled generation to cloak themselves in the environmental flag, irrespective of their underlying motives and goals.

The way our lungs separate and capture carbon dioxide from blood could be key to isolating emissions of the greenhouse gas in order to store them safely underground.

Congress snubbed the biomass power industry in 2004 when open-loop biomass power plants were given only half the production tax credits (PTCs) received by other renewable sources, such as wind, solar, and geothermal. It further dissed open-loop biomass plants by authorizing the credit for only five years (it expired December 31, 2009) rather than the 10 years given to other renewables. Why is the biomass power industry not getting the policy respect and equity with other renewable technologies that it deserves?

Scientists from Germany and India say they have developed a new polymer that reduces the amount of radioactive waste produced during routine operation of nuclear reactors. The approach uses small beads of the material to "fish" out radioactivity from water pumped through the reactor’s core.

The new EZ Grout Hog Crusher Job Site Material Recycler from Multiquip is easily attached to a skid steer loader or forklift and can recycle most materials — brick, block, stone, rock, asphalt, non-reinforced concrete, and more — on the job site. The Hog Crusher is able to scoop up and pulverize recyclable material in […]

By Kennedy Maize This is so California. The all-powerful California Air Resources Board, which drives regulations affecting cars, power plants, and virtually anything with moving parts in the state, has ordered a new study of the health effects of diesel engine emissions,  after it turned out that a staff member who did the analysis leading […]

Biofuels projects present a variety of risks in today’s business climate that must be mitigated or hedged in order for project financing to proceed. With the contraction in the capital markets, credit quality has become increasingly important.

The Supreme Court last week refused to review a February 2009 ruling by a federal court that blocked the Federal Energy Regulatory Commission (FERC) from asserting its power to override transmission decisions made by states.

A technical study released by the Energy Department’s National Renewable Energy Laboratory (NREL) last week shows that shifting 20% or more of the Eastern Interconnection’s electrical load to wind energy by 2024 is technically feasible, but it would require significant expansion of the transmission system and system operational changes.

The Federal Energy Regulatory Commission (FERC) last week said it would take a fresh look at regulatory policies to integrate variable renewable energy resources such as wind, solar, or non-storage hydro generating plants into the nation’s power grid while maintaining power system reliability.

Westar Energy has agreed to spend approximately $500 million to significantly reduce air pollution from a Kansas power plant and pay a $3 million civil penalty under a Clean Air Act settlement with the Environmental Protection Agency (EPA) and the Justice Department. The company has also agreed to spend $6 million on environmental mitigation projects.

The Environmental Protection Agency (EPA) on Monday set the new one-hour standard for nitrogen dioxide (NO2)—formed from vehicle and power plant and other industrial emissions—at a level of 100 parts per billion (ppb). The agency said it would also retain the existing annual standard of 53 ppb.