Power coefficient performance of savionus wind turbine using CFD analysis

Abstract

This paper aims to study the power coefficient of the Savionus wind turbine using Computational Fluid Dynamics (CFD) analysis. Power coefficient is one of the parameter from wind turbine to defined the ratio between available power from the wind and the extracted power from rotor. To analyze power coefficient, then 3D model of the Savionus wind turbine is needed. The 3D model included the rotor height and diameter. The height of the rotor in this research is 600mm and the diameter is 580mm. In this research, CFD is used to analyzed the behavior of Savionus wind turbine under the airfield conditions and to determine power coefficient of the wind turbine. The wind speed on the airfield is set to 5m/s with the angular velocity 5m/s. The value of power coefficient from the simulation is 0,301 and from the theoretical calculation is 0,268. The comparison power coefficient result between simulation and theoretical calculation has error value 0,033.