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Top tip for tip-top turbine power
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08/06/2007
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A novel type of wind turbine could improve efficiency dramatically by changing the tip shape and linking the blade tips.
Berlin-based developer EvoLogics claims the turbine enhances power output by 50% at a wind speed of 8m/s, by 30% at 12m/s and 20% at 15m/s. The average wind speed in the UK is 5.6m/s.
The design is inspired by the fanned wing tips of birds and its purpose is to break up tip vortices, in a similar manner to that achieved by the winglets on the latest generation of wings on airliners.
The result is a reduction in the loss of energy to tip vortices, not only providing improved efficiency, but also reducing noise and making the turbine design self-stabilising.
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Author
Tom Shelley
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