POWER

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.

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.

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 […]

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.

Seiffert Industrial’s new laser pulley alignment tool, Pulley PRO, uses a green laser beam for maximum angular resolution and for reliable and accurate readings. The lightweight and compact units magnetically attach to the inside or outside face of any pulley or sprocket and have no small parts or targets that can get lost. A laser […]

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.

Sherwin-Williams introduced the Tile-Clad High Solids Mildew Resistant epoxy, an industrial coating that protects against mildew growth on exterior surfaces where dampness and humidity are of concern. The epoxy is well-suited for areas where mildew growth must be guarded against in order to maintain operations, such as water tank exteriors, structural and support steel, power […]

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.

Acknowledging that ANSI centrifugal pumps often need to be installed in areas where space is at a premium, Griswold Pump Co. has developed the 811CC (Close Coupled) ANSI centrifugal pump. This pump offers the features and flexibility of standard Griswold 811 ANSI pumps but with a smaller electrical motor encased in a compact package. Despite […]

"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.

CHLOR*RID International launched the Chlor*Ion Meter, a handheld digital testing device that electronically measures chloride on surfaces with an internal ion-specific electrode. Most surface chloride testing devices offer an external electrode on a cord, but these could be damaged in the field, CHLOR*RID says. Because it digitally measures chloride on surfaces, the Chlor*Ion Meter’s ion […]

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?

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 […]

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 […]

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. […]

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 […]

One of the world’s first osmotic power plants started operation at Tofte on the Oslo fjord in Norway last November, producing 2 kW to 4 kW after more than a decade of collaborative research and development by the Norwegian University of Science and Technology and Norwegian state-owned utility Statkraft (Figure 1).

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.

In order to operate aging nuclear power plant instrumentation and control systems for up to 60 more years or longer, there must be a smooth transition from existing analog technologies to advanced digital platforms. For this to occur, electromagnetic compatibility concerns related to both qualification testing and the electromagnetic environment must be addressed to ensure safe and reliable operation of these systems within the plant’s electromagnetic and radio frequency interference environment. By understanding the regulatory requirements and sharing implementation experience, digital system upgrades can be installed successfully.

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.

Digital fieldbus technologies, including Foundation fieldbus and Profibus, are increasingly being used with success in the nuclear and fossil fuel power industries. This article compares a conventional control system with a Foundation fieldbus – based digital control system used in a typical circulating water system in a nuclear power plant. As shown in this example, using digital fieldbus technologies can result in significant savings in terms of installation and hardware costs.

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.

With everything from baby food to SUVs (hybrids of course!) competing for “green mindshare,” audiences are inundated with a barrage of green claims. Although environmental awareness is at an all-time high, a growing sense of skepticism has crept into the conversation. Whereas even a couple of years ago audiences eagerly gobbled up green claims, people today are more uncertain and retain a higher degree of doubt when confronted with messages of sustainability and environmental stewardship.

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.

Instead of just forgetting about their trash when they leave it at the curb, people increasingly are recognizing that municipal solid waste is a valuable resource. For more than 25 years, Covanta Energy has viewed waste as an important resource not to be thrown away. Waste materials have a tremendous amount of potential energy. Waste materials in landfills release significant amounts of methane, a potent greenhouse gas. Recycling and Energy-from-Waste (EfW) together, as part of an integrated waste management approach, make the best use of this resource, reducing our greenhouse gas emissions while turning waste into steam to heat our homes and businesses and electricity to power our cities and towns.

Over the past three decades, the Brazilian sugarcane industry has experienced major and continuous technological improvement. Today, sugarcane is the basic input for an extraordinarily diverse range of value-added products including food, animal feed, chemicals, biofuels and electricity coming from modern, integrated biorefineries that produce sugar, ethanol, bioelectricity and bioplastics in Brazil.

The support of energy savings performance contracts helps customers achieve goals.

The federal government is the largest single user of energy in the United States. Energy efficiency is the cleanest, cheapest and fastest source of energy. Put the two together and you have the Federal Energy Management Program (FEMP).

Renewable and reliable alternative energy is a critical need as the world’s oil supplies are depleted. Using its globally renowned expertise in engineering and systems integration, Lockheed Martin is successfully pioneering new ways to leverage solar, wind, and wave energy as alternatives to fossil fuels.

District heating in Denmark was developing in the same manner as in other countries before the energy crisis hit the western countries in 1973/74. However, by the beginning of the 21st century, the Danish energy consumption per capita for space heating had dropped more than 50% compared to 1973.