* eight to 27 times the power production just by getting 2,000 feet (610 m)
* Forty to eighty times the energy density at 30,000 feet.
Aloft might be a funnel-shaped blimp with a turbine at its back; or a balloon with vanes that rotate; a truss-braced wing; a parachute; a kite. Any and all of them are ideas being considered by nascent renewable energy industry that is flexing its imagination.
Latest photos (Nov 2010) from Kitegen (KSU) in construction Sommariva, Piedmont. You see it is mounted the “stem” itself, which is the tubular component cables to maneuver the kite.
“At 2,000 feet (610 m), there is two to three times the wind velocity compared to ground level,” Moore said. “The power goes up with the cube of that wind velocity, so it’s eight to 27 times the power production just by getting 2,000 feet (610 m) up, and the wind velocity is more consistent.”
Send turbines farther aloft, into the 150 mph (240 kph) jet stream at 30,000 feet (9,150 m), and “instead of 500 watts per meter (for ground-based wind turbines), you’re talking about 20,000, 40,000 watts per square meter,” Moore said. “That’s very high energy density and potentially lower cost wind energy because of the 50-plus fold increase in energy density.”
There was a european patent on very high altitude wind power generation.
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Brian Wang is a Futurist Thought Leader and a popular Science blogger with 1 million readers per month. His blog Nextbigfuture.com is ranked #1 Science News Blog. It covers many disruptive technology and trends including Space, Robotics, Artificial Intelligence, Medicine, Anti-aging Biotechnology, and Nanotechnology.
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