Comparative analysis of vertical axis wind turbine (VAWT) with a different aerodynamic model

Abstract

The present research aim to investigated the concept of J-shaped blade in a straight blade darrieus type VAWT in terms of output torque and power by employing high fidelity 3D numerical simulations. In this study, NACA0015 is the base airfoil and as been modified to generate the desired J-shaped profile. The result indicate improvement on torque and power coefficient. The aluminium blades are less cost and light weight when compared to carbon fibre and steel material. Among the advantages of this arrangements of gear box and generator can be placed close to the ground and the blade axis is perpendicular to the wind streamline. The aerofoil shape and manufacturing technique gives more lift, drag. The objective of this VAWT to generate electricity in urban areas with less setup cost. The main advantage is that, it is economically eco-friendly.