Design and Modelling of Varticle Axis Savonius Water Turbine
Keywords:
Overlap ratio, Savonius turbine, Working Model, Hydropower, Co-efficient of power, Coefficient of torque.Abstract
To produce electricity by using renewable resources is very essential in this time. Hydropower
from the rivers, canals and streams are one of the best renewable sources and green cheap and easily
available resources to produce electricity from flow of water. For generation of electricity using the kinetic
energy of natural water resources, Savonius rotor is one of the best types of turbine. The savonius turbine is
more popular as wind turbine. In hydrokinetic turbines, Savonius turbine is easy to design and fabricate. In
present work, a working model of savonius rotor is built and analyzed analytically and practically. The effect
of overlap ratio is investigated for performance enhancement of savonius turbine. In present investigation
four different overlap ratios, 0.20, 0.25, 0.30 and 0.35 are analyzed. It is found that the maximum torque can
be obtained at overlap ratio 0.35.