Quietrevolution wind turbine
Encyclopedia
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.Sustainability Innovation Award
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.
Gorlov helical turbine
The Gorlov helical turbine is a water turbine evolved from the Darrieus turbine design by altering it to have helical blades/foils. It was patented in a series of patents from September 19, 1995 to July 3, 2001 and won 2001 ASME Thomas A. Edison . GHT was invented by Professor Alexander M...
. Both are an evolution of the Darrieus wind turbine
Darrieus wind turbine
The Darrieus wind turbine is a type of vertical axis wind turbine used to generate electricity from the energy carried in the wind. The turbine consists of a number of aerofoils usually—but not always—vertically mounted on a rotating shaft or framework...
. 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.Sustainability Innovation Award
The turbine consists of three vertical airfoil
Airfoil
An airfoil or aerofoil is the shape of a wing or blade or sail as seen in cross-section....
blades, each having a helical
Helix
A helix is a type of smooth space curve, i.e. a curve in three-dimensional space. It has the property that the tangent line at any point makes a constant angle with a fixed line called the axis. Examples of helixes are coil springs and the handrails of spiral staircases. A "filled-in" helix – for...
twist of 120 degrees. This feature spreads the torque
Torque
Torque, moment or moment of force , is the tendency of a force to rotate an object about an axis, fulcrum, or pivot. Just as a force is a push or a pull, a torque can be thought of as a twist....
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.
See also
- List of wind turbine manufacturers
- Distributed generationDistributed generationDistributed generation, also called on-site generation, dispersed generation, embedded generation, decentralized generation, decentralized energy or distributed energy, generates electricity from many small energy sources....
- Net meteringNet meteringNet metering is an electricity policy for consumers who own renewable energy facilities or V2G electric vehicles. "Net", in this context, is used in the sense of meaning "what remains after deductions" — in this case, the deduction of any energy outflows from metered energy inflows...
- Betz' lawBetz' lawBetz's law is a theory about the maximum possible energy to be derived from a "hydraulic wind engine", or a wind turbine such as the Éolienne Bollée , the Eclipse Windmill , and the Aermotor...