Performance investigation of Savonius Turbine with New Blade Shape: Experimental and Numerical study

摘要

This study introduces a new configuration of the Savonius turbine (NCST) to improve the performance of the classical Savonius wind turbine. The static torque at different rotor angles ranging from 0° to 360° in step of 30° has been analyzed in both experimentally and numerically using CFD analysis. Moreover, the dynamic torque and mechanical power of the rotors have been measured experimentally. The experimental tests on NCST are conducted in an open wind tunnel. The influence of blade geometries on the torque and mechanical power of the rotors is investigated. Furthermore, the effect of end plate with various sizes and shape of the aerodynamic performance of the NCST has been studied experimentally and numerically. In both studies, NCST was tested at various wind speeds ranging from 3 to 13 m/s. The obtained results show that the use of both upper and lower end-plates significantly increase the power of the rotors by 35% compared with no end plate. It was also observed all the rotors have positive static torque at all the rotor angles.