Question

write a short note on savonius rotor

Answer 1

Savonius wind turbines are a type of vertical-axis wind turbine, used for converting the force of the wind into torque on a rotating shaft. The turbine consists of a number of aerofoils, usually—but not always—vertically mounted on a rotating shaft or framework, either ground stationed or tethered in airborne systems

Answer 2

It's well know that savonius rotor creates high torque and is self- starting even at low wind speeds ,but is relatively low in efficiency rating .
The permformance analysis of savonius rotor with twisted blades , renewable energy 31,PP. The geometry of the blade shape ( skeleton line ) of savonius rotor with two blades was optimized in order to obtain better performance of output power and static torgue
In order to improve sharp bending streamlines occuring in overlap area of savonius rotor with two blades , the novel rotor is composed of three blades in other to adjust angle of accepting air flow of the oriented blade