Savonius vertical axis wind turbine
Savionus windturbine on roof, this kind of wind turbine is compact and easily integrated into buildings - crédit :
Pcon
Although with less efficiency compared with three-bladed wind turbines, the savonius vertical axis wind turbine has the advantage of being compact, economical and aesthetic.
This allows it to be easily integrated into buildings.
Working principle of a Savonius wind turbine
The Savonius rotor is composed of two half-cylinders off axis
crédit :
Ecosources
This machine was invented by the Finnish engineer Sigurd Savonius in 1924 and was patented in 1929.
She is composed of a minimum of two half-cylinders off axis.
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Advantages :
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Compact
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Easily integrated into buildings
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Starts at low wind speed unlike the
darrieus vertical axis wind turbine
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Low-noise system
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Works with any wind direction
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Disadvantages :
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Low efficiency
Facilities and prototype of Savonius wind turbine
Hybrid wind/solar, o
utside lighting system
with a vertical axis Savonius wind turbine
A solar panel and a vertical wind power supply
the lighting system - crédit :
Panasonic
The company Panasonic provides a new kind of outside lighting system
A solar panel and Savonius wind turbine can charge a battery in the base of the tower.
This battery can power a streetlight or private outdoor.
Totally autonomous, this type of installation keeps lighting in case of electricity supply shutdown.
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