TUV SUD To Certify
REpower Systems, now Senvion, has commissioned TUV SUD to carry out type certification of its new REpower 6.2M152 offshore wind turbine. The model, with a rated power of 6.15 MW and rotor diameter of 152 meters, is designed to be installed offshore with hub heights of between 95 and 110 meters.
For wind turbine type certification, TUV SUD says its team will examine and assess the overall design and all key components of the wind turbine. Completion of the type certification procedure, the subsequent launch on the market and the start of mass production are scheduled for 2015.
AWS Truepower, a provider of renewable energy consulting and information services, has upgraded its openWind Enterprise wind project design and optimization software.
Among other features, AWS says the new edition incorporates the latest IEC recommendations on effects of turbulence and shear on turbine output; the ability to use wind profiles to 200 meters from SODAR, LIDAR and tall towers; and expanded environmental analysis including time-series modeling of shadow flicker and improved noise modeling and reporting.
“This upgrade is aimed squarely at handling complex sites with very large turbines – just the type of situation our Enterprise customers are increasingly facing,” says Michael Brower, chief technical officer at AWS Truepower. “I think our customers will be delighted with the new capabilities, many of which respond to their urgent requests in dealing with real-world projects.”
Firm Rolls Out
New Ice Sensor
Florida-based New Avionics Corp. has introduced the Ice Meister Model 9734-SYSTEM, a new compact ice sensor for use on wind power turbine nacelles and meteorological towers.
In operation, 9734 is a digital/optical go/no-go ice sensor. Anytime it “sees” that liquid rain has turned to solid ice, 9734 alerts its host system by closing its output relay contacts and energizing its indicator LED. When the ice has disappeared, New Avionics says 9734’s output relay contacts open and its indicator LED is de-energized.
The company adds that 9734 provides its own mounting plate that bolts to the top of any nacelle and comes standard with six feet of lightweight blue cable. As an available option, virtually any length cable can be provided from the factory, New Avionics adds.
Vestas’ V164-8.0 MW prototype offshore wind turbine has produced its first kilowatt-hour of electricity, which the company says makes the machine the world’s most powerful turbine in operation.
The turbine, installed at the Danish National Test Centre for Large Wind Turbines in Osterild, will be closely monitored in the coming months to further validate reliability and energy output. With a 140-meter tower, the turbine at Osterild has a tip height of 220 meters.
“We have now completed the production, testing and installation of the V164-8.0 MW as planned, thanks to the team’s intense effort during a time when Vestas has reduced its investments and lowered fixed costs. We now look forward to evaluating the turbine’s performance on site,” comments Vestas’ Chief Technology Officer Anders Vedel.
Vestas says the V164-8.0 MW will be the flagship product for its offshore joint venture with Mitsubishi Heavy Industries, established in September 2013. Given the necessary pipeline of orders, Vestas expects serial production of the V164-8.0 MW turbine can begin in 2015.
Harvard Sets Sights
On Energy Storage
The Harvard School of Engineering and Applied Sciences (SEAS) says a team of university scientists and engineers has demonstrated a new flow battery that could help make energy storage of renewables, such as wind and solar power, more economical and reliable.
SEAS says the metal-free flow battery relies on the electrochemistry of inexpensive, small organic molecules called quinones, which are similar to molecules that store energy in plants and animals, rather than on costly metals or chemicals.
“The intermittent renewables storage problem is the biggest barrier to getting most of our power from the sun and the wind,” comments team leader Prof. Michael J. Aziz. “A safe and economical flow battery could play a huge role in our transition off fossil fuels to renewable electricity. I’m excited that we have a good shot at it.”
Aziz says the next steps in the project will be to further test and optimize the system that has been demonstrated and bring it toward a commercial scale. By the end of the three-year development period, project collaborator Sustainable Innovations LLC expects to deploy demonstration versions of the organic flow battery contained in a unit the size of a horse trailer.
Under the OPEN 2012 program, the Harvard team received funding from the U.S. Department of Energy’s Advanced Research Projects Agency – Energy (ARPA-E) to develop the grid-scale battery and plans to work with ARPA-E to catalyze further technological and market breakthroughs over the next several years.
ACCIONA Windpower has received seven new certificates for different models of its AW 3000 wind turbine from GL Renewables Certification. ACCIONA says it now has 15 certificates awarded for the 3 MW platform.
Specifically, GL has issued the design certificate for the AW 125/3000 IEC IIIa wind turbine, with a 125-meter rotor, 120-meter concrete tower and 61.2-meter blade, for grids of 50 and 60 Hz. ACCIONA says the model is specially adapted for sites with low wind speeds.
GL has also given the type certificate for another six models of the AW 116/3000 turbine with a 116-meter rotor. ACCIONA says the certificate indicates that AWP has a quality management system according to ISO 9001, that the manufacture of the main components of the turbine is done in line with quality standards, and that the turbine is capable of passing the prototype tests defined in current standards.
New BASF Line
Protects Blade Edges
BASF has unveiled its RELEST Wind LEP paint designed to help protect the edges of wind turbine rotor blades. The company claims tests show the new polyurethane coating offers four times higher resistance than conventional solutions.
As BASF explains, wind turbine rotor blades are exposed to enormous stresses, including rain, hail, snow, sand and UV radiation. At the blade tips, speeds can reach up to 300 km per hour.
BASF’s Harald Muller says the product can fit customers’ individual needs. “Rotor blade coating is performed in a variety of ways depending on the manufacturer – for instance, by hand with brushes, rollers or spray painting. The paint can be used with all of these methods.” In addition, the company says the product can be applied under a wide range of climate conditions.
Nordex SE is extending its Generation Delta turbine platform, which the company launched last spring, with the addition of a turbine for light-wind locations.
The company says its N131/3000 is specially designed for IEC-3 locations and features rotor blades measuring 64.4 meters in length. Nordex is offering the N131/3000 on tubular steel towers with a hub height of 99 and 114 meters for international markets. The target markets for the N131/3000 are central Europe, Scandinavia, Turkey, and selected regions in Africa and the Americas.
Nordex says the first light-wind N131/3000 turbine is to be installed in the fourth quarter of this year. Series production of the turbine is scheduled for 2015.
Snap-on Industrial has announced its new pneumatic torque wrenches, which the company says are designed for technicians working in fields such as power generation, construction and maintenance.
According to Snap-on, the wrenches feature dual-speed gearboxes and pneumatic technology that controls input air pressure. The design provides a rundown gear with speeds as high as 100 RPM for fast rundown of fasteners and a torque gear with a slower RPM to ensure control and accuracy, the company adds.
Products & Technology
TUV SUD To Certify Senvion Turbine
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