There are a number of home wind turbine design styles on the market today and this document describes the extraordinary Savonius wind turbine. Unlike the more common horizontal home wind turbine designs, the Savonius turbine is based on a perpendicular architecture that relies on vanes to turn in the wind. This rotation is then moved through a vertical shaft to the generator for the generation of electricity. This turbine is the best choice for applications that use minimal power, but maximum dependability 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 several types of devices used to capture the power of the wind and change 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's a vertical axis wind turbine (VAWT). This means that the actual piece of the turbine that rotates looks more like a spinning canister that connect to a vertical shaft coupled to the generator which is mounted vertically near ground level. This vertical cylinder then catches the wind, spins the shaft to the generator to deliver the electricity.

The earliest design of this sort of wind turbine was finished in 1922 by Sigurd Savonius, a Finnish design engineer. This sort of turbine is used today quite often because of it's straightforward design and dependability. Additionally, because it spins on a flat axis, there is no need to have a directional gadget to keep the unit aligned with the wind direction like other types. It can catch the wind in any direction and reacts automatically to changes in wind direction. This kind of turbine is considered a "drag style" turbine from an aerodynamic point of view.

It is designed on the principle that because of the canisters form, it experiences more drag when moving with the wind than against it and it takes advantage from the differential created and changes it to rotation. Since in general drag design turbines are not as efficient, it does not generate as much power as its more popular horizontal cousin, but can still have a broad range of applications. This sort of wind turbine is used in many of the atmospheric surveillance stations around the world considering these tend to be located in isolated areas and the importance of dependability and low power consumption make the Savonius wind turbine a perfect choice.

They are also used on other isolated locations like buoys far out in the ocean. They are also sometimes used to attract attention to advertising signs. In this use they are not used to produce any power, but have opposite sides painted contrasting colors to clutch your attention as they spin. In general the Savonius home wind turbine is a very different design that lends itself to many varied applications. Its reliability and simplicity make it the perfect choice for situations that require low power generation, steady performance

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