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April 18, 2006
Turby Vertical Axis Windmill
Turby is a revolutionary vertical axis wind turbine designed for use in an urban or built-up environments. It is a 2.5 kilowatt wind generator designed for high rooftops and can generate enough electricity to reduce the electric bill of a typical home by two thirds. The Turby has 3 helically shaped composite blades located at a fixed distance from the shaft. It has very low vibrations, very low noise level and an excellent efficiency. Modern horizontal axis wind turbines (HAWT) usually have a rather high efficiency but their construction is expensive. They have to be directed in the direction of the wind, either manually or by the use of an on-board sensor control mechanism. Vertical-axis turbines do not need such a control system; it is completely irrelevant from which side the wind blows; the position of the rotor is always right. Because of their relative simplicity, their construction cost is much less than a HAWT....Posted by dymaxion at April 18, 2006 10:50 PM