Bladeless Wind Turbine

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The new wind turbine concept provides cheaper and more efficient wind energy. This is called bladeless wind turbine which is more economic and environmentally friendly than existing wind turbines which produce lots of noise and kills birds.

Bladeless wind turbine 

Instead of rotating blades, the Saphonian's sail-shaped body collects the kinetic energy of the wind, told by Saphonian's inventor.
How bladeless wind turbine works ?
Inventor explained that the resulting mechanical energy moves pistons which generate hydraulic pressure that can be stored in a hydraulic accumulator or converted into electricity.

Environmentally friendly wind turbine 

Due to Betz Law classical wind turbines can capture 40-50 % of kinetic energy from wind. The new concept has ability to capture up to 80 % of kinetic energy from the wind. What's more it reduces the aerodynamic and mechanical losses associated with rotating blades.
It is claimed that the new bladeless prototype is 2.3 times more efficient and costs half price of conventional wind turbines. Because new bladeless concept has not gearbox, blades and hub.

It is estimated that it would take up to two years until the commercial product reaches the market. However it is also added that the manufacturing step is also important as it will determine how the market will accept it.