Sep 2 2009 7:21AM | Permalink |Comments (0) |
ANSYS today highlights an interesting energy-harvesting application, developed by its customer Green Ocean Energy, which develops devices that generate renewable power from the motion of the seas. In fact, Green Ocean Energy is developing two devices that will harness the waters of the north Atlantic: the Ocean Treader and Wave Treader, each of which are designed to bob on the surface of the ocean while waves cause attached floating arms, which sit atop buoyant sponsons, to move up and down to power on-board generators. Each machine is designed to produce 500 kW of electricity, so a farm of 30 such devices would have a rating of 15 MW. The Ocean Treader is moored to an anchor; Wave Treader mounts on the base of an offshore structure such as a wind turbine or tidal turbine.
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The Ocean Treader is moored to an anchor. (courtesy of ANSYS Inc.)
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Green Ocean Energy, based in Aberdeen, UK, is using ANSYS software to help meet Ocean Treader (pictured) and Wave Treader's rigorous technical requirements while staying on schedule. "Because prototypes cost over $3 million dollars each and take months to construct, numerous rounds of hardware test-and-redesign cycles are impractical," said George Smith, managing director of Green Ocean Energy. “The virtual prototyping capabilities of the ANSYS tools have been a critical element in getting the products to produce maximum energy output as well as to operate effectively for decades. As a result, engineering simulation is helping our company meet all technical requirements, deadlines and business objectives." Specifically, Green Ocean Energy is applying ANSYS hydrodynamic and structural analysis tools to help reach a balance between structural strength and weight restrictions. With an expected 25-year design life, the machines must withstand rough waters and gale-force winds; conversely, structural members must be lightweight to keep production costs within budget and to allow for sufficient floatation.
Though the idea of wave-powered energy is not new but has not been economically feasible till recently. “Significant engineering hurdles must be overcome to develop efficient, reliable and economical wave-powered electrical generation systems that could be deployed on a mass-production basis. Green Ocean Energy is a company successful at leveraging solutions from ANSYS to reach their business objectives, and improve the environment at the same time,” said Dipankar Choudhury, VP of corporate product strategy and planning at ANSYS, Inc. “Because our technology provides detailed insight into the behavior of designs, it is ideal for developing a wide range of products that can benefit the environment — inventing low-mileage and clean energy automobiles, tracking pollutant plumes, increasing efficiency of wastewater treatment plants, optimizing energy production from fossil fuels, and engineering safer and more sustainable buildings. ANSYS offers proven solutions to help organizations be at the forefront of clean and green.”
See a related article on simulation and prototyping for embedded-system design.
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