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Combining an inlet shroud, a diffuser, and a brim into a wind lens, wind turbine power output has been improved by a factor of 2 to 5 times. Turbine noise is also decreased.

Clean Power

Wind Lens Triples Turbine Output

Combining an inlet shroud, a diffuser, and a brim into a wind lens, wind turbine power output has been improved by a factor of 2 to 5 times. Turbine noise is also decreased.

Professor Prof. Yuji Ohya of the Kyushu University research institute for applied mechanics (RIAM) has been working with a team to improve the efficiency of wind turbines. Combining an inlet shroud, a diffuser, and a brim into a wind lens, power output has been improved by a factor of 2 to 5 times in several experiments. Turbine noise is also decreased.

http://youtu.be/ifF-MOuzM_s

The Wind Lens works by creating an area of low pressure behind the turbine that essentially sucks the wind through the turbine, increasing effective wind speed. As wind power is proportional to the wind speed cubed, the wind lens changes the fluid dynamics around the turbine to increase its power.

Karl Burkart of Mother Nature Network walks us through the implications. The US is ranked 3rd in the World for potential wind resources. Using just 20% of that potential and turbines with a wind lens modification, sufficient power could be generated to satisfy 100% of present US electrical production.

The RIAM researchers anticipate the best use of wind turbines is offshore, where winds tend to be more constant and speeds higher. In an effort to promote the Wind Lens applications offshore, they have also designed a hexagon floating platform that could be used in conjunction with the wind lens turbine technology.

Primary Source: RIAM
Photo Credit: windlens.com

 


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We share this World; its past, present resources and our combined future. With every aspiration, the very molecules we use for life are passed to others through time and space so that each of us may be considered a Breath on the Wind. This part of the world's consciousness lives in NYC; has worked in law, research, construction, engineering; has traveled, often drawn to Asia; writes on Energy and Electric Vehicle issues and looks forward to all your comments.   "If you would persuade, you must appeal to interest rather than intellect." -- Benjamin Franklin

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