The quietrevolution is a brand of (VAWT) vertical axis helical turbine. The helical design is most similar to the Gorlov helical turbine. Both are an evolution of the Darrieus wind turbine. It has won several awards including the "Sustainable Innovation Award" in 2006. There are proposals to use the turbine in projects in New York and Shanghai.
The turbine consists of three vertical airfoil blades, each having a helical twist of 120 degrees. This feature spreads the torque evenly over the entire revolution, thus preventing the destructive pulsations of the straight-bladed giromill (Darrieus turbine). The wind pushes each blade around on both the windward and leeward sides of the turbine.
The qr5 turbine, rated for 6 kW, measures 3.0m in diameter by 5m high. A 2.5 kW model is in development.
Famous quotes containing the word wind:
“To have always
Had the wind for a friend is no recommendation.”
—John Ashbery (b. 1927)