There are a multitude of home wind turbine designs on the market at the present time and this article details the specifics of the exceptional Savonius wind turbine. Unlike the more conventional horizontal turbine designs, the Savonius home wind turbine is based on a erect architecture that relies on vanes to rotate in the wind. This rotation is then exchanged through a vertical shaft to the generator for the production of electricity. This home wind turbine is the best option for applications that require minimal power, but ultra reliability The simplicity of the Savonius design makes it a popular choice among applications that require as little maintenance as possible.

In the realm of wind generated power there are various designs of equipment used to capture the power of the wind and transform it to electricity. Most of the designs follow the typical style of a windmill, or airplane style propeller that sits atop a tower and rotates to catch the wind. The Savonius wind turbine style is different in design because it is a vertical axis wind turbine (VAWT). This means that the actual portion of the turbine that rotates looks more like a rotating canister that connect to a vertical shaft connected to the generator which is also mounted vertically near the ground. The vertical shaft then catches the wind, revolves the shaft to the generator to produce the electricity.

The beginning design of this kind of turbine was made in 1922 by Sigurd Savonius, a Finnish engineer. This kind of turbine is used today quite often because of it's simple design and dependability. Also, because it spins on a flat axis, there is no need to have a directional device to keep the unit aligned with the wind direction like other models. It can catch the wind in any direction and reacts right now to changes in wind direction. This kind of turbine is considered a "drag style" turbine from an aerodynamic point of view.

It is based on the principle that because of the canisters form, it experiences more drag when moving with the wind than against it and it benefits from the differential created and changes it to rotation. Because in general drag design turbines are less efficient, they does not create as much power as its more common horizontal cousin, but can still have a full range of applications. This kind of wind turbine is used in many of the atmospheric monitoring stations around the world because these tend to be located in remote areas and the value of reliability and low power consumption make the Savonius wind turbine an excellent choice.

They are also used on other remote locations like buoys far out in the ocean. They are also sometimes used to entice attention to advertising signs. In this application they are not used to produce any power, but have opposite sides painted contrasting colors to grab your attention as they spin. So, the Savonius wind turbine is a very unusual design that lends itself to many varied applications. Its simplicity and reliability make it the best choice for situations that require minimal power generation, but rock solid performance

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