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Power


— Environment

Virtually silent, fully enclosed, bladeless wind turbines on the way

By - May 6, 2010 2 Pictures
A wind turbine that uses boundary layers instead of blades to generate power has been patented by Solar Aero, a New Hampshire based not-for-profit scientific research organization. Modeled on the 1913 Tesla steam turbine, the Fuller turbine is virtually silent and completely enclosed, which avoids many of the drawbacks of bladed turbines such as noise, radar interference, visual pollution and wildlife injuries. Read More
— Environment

Waste-to-Biofuels plant to make gas from garbage

By - March 3, 2010 4 Pictures
If you’re a fan of the original Back to the Future movie, then you probably liked the scene at the end where Doc Brown used some random household waste to fuel his time-traveling deLorean. Well, we’re now getting a little bit closer to that being a reality... sort of. While practical flying cars, time travel and cold fusion are still a ways off, the ability to power your car with garbage isn’t. Canadian biofuels firm Enerkem is currently working with the city of Edmonton, Alberta, to convert that city’s municipal waste into ethanol. This will lower the city’s greenhouse gas output, keep much of its waste out of the landfill, and produce a “clean” fuel Doc Brown would be proud of. Read More
— Environment

Rubber trailing edge flaps could result in quieter, more productive wind farms

By - February 28, 2010 5 Pictures
If you’ve ever seen a commercial-scale wind turbine in real life, then you’ll know that they’re huge – a single blade can be as long as 60 meters (197 feet). Researchers from Denmark’s Risoe DTU National Laboratory for Sustainable Energy tell us that such blades can flex by up to six meters (20 feet) when subjected to strong wind gusts. Worse yet, the gust load is often not evenly distributed along the length of the blade, so it doesn’t flex evenly. Fortunately, the researchers are working on addressing this problem, by attaching flexible flaps to the trailing edges of the blades. These flaps come in the form of silicone rubber strips, which run the length of the blade. The result, we’re told, will be quieter, higher-output turbines. Read More
— Environment

Secret Energy Turbine: rooftop wind power in stealth mode

By - February 23, 2010 5 Pictures
Few people would argue that having a rooftop wind turbine could help offset your power bills. Your neighbors, however, might not appreciate the sight of a windmill on your roof, nor would they like the sound of its blades whistling through the air. Don’t give up on the idea yet, though, because British inventor Rupert Sweet-Escott has come up with a product that he claims addresses those problems. His Secret Energy Turbine (SET) looks like an ordinary chimney stack and is boasts almost completely silent operation. Read More
— Mobile Technology

Dexim iPod Nano 5G Power Case

By - January 16, 2010 11 Pictures
China's consumer electronics manufacturer Dexim has announced the release of a multi-functional power case to complement the new iPod Nano 5G. Coming with a powerful flashlight to help shoot video in low light conditions, a built-in speaker for desktop listening and an antenna for improved FM radio reception, the DVA004 will also gives extended play courtesy of its lithium battery pack. Read More
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