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Poduhvat’s Contra-Rotating Wind Turbines Could Produce 5 Times More Power

Posted By Lidija Grozdanic On June 10, 2013 @ 11:13 am In green technology,News,Renewable Energy,Wind Power | 6 Comments

Whetar Wind Turbines, Poduhvat, Poduhvat turbines, wind energy, wind power, wind turbines, renewable energy sources, green technology, clean energy [1]

London-based manufacturer Poduhvat [2] has developed a wind turbine which they claim can produce five times more energy than traditional wind turbines [3] with the same rotor size. The contra-rotating Whetar turbine is almost completely silent and it can generate 43,8 MW/h per year with under 50% load capacity.

Whetar Wind Turbines, Poduhvat, Poduhvat turbines, wind energy, wind power, wind turbines, renewable energy sources, green technology, clean energy [4]

The turbine has two double contra-rotating rotors [5] encased with specially constructed housing duct. The rotors cancel each other’s rotational forces, which significantly reduces vibrations [6] and makes the turbine more suitable for urban areas. The ducted part of the turbine creates a ring-like area of high pressure around the turbine, leaving the area of lower pressure behind. This works as a funnel sucking air into the turbine. The low speed air accelerates and is used by two contra-rotating rotors which additionally accelerate each other.

The expected energy production depends on the site’s prevailing winds [7] but the company claims that the turbine can produce 43,8 MW/h annually, under 50% of load capacity. The turbine, with smaller-sized rotors compared to the conventional rotor models of the same category and practically no noise, can be mounted at lighting poles and building roofs.

+ Poduhvat [2]


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URL to article: http://inhabitat.com/whetar-contra-rotating-turbine-is-compact-silent-and-designed-for-the-city/

URLs in this post:

[1] Image: http://inhabitat.com/wp-content/blogs.dir/1/files/2013/06/Whetar-10-Wind-Turbine-1.jpg

[2] Poduhvat: http://www.poduhvat-hydrokinetics.co.uk/

[3] wind turbines: http://inhabitat.com/siemens-creates-the-worlds-largest-wind-turbines-to-be-installed-off-uk-coast/

[4] Image: http://inhabitat.com/wp-content/blogs.dir/1/files/2013/06/Whetar-10-Wind-Turbine-4.jpg

[5] contra-rotating rotors: http://inhabitat.com/worlds-first-manned-electric-helicopter-takes-flight/pascal-chretien-electric-helicopter-8/

[6] reduces vibrations: http://inhabitat.com/new-silent-eco-whisper-wind-turbine-is-more-efficient-than-three-blade-models/

[7] prevailing winds: http://inhabitat.com/la/listing/prevailing-wind-power/

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