Drag coefficient effect of vertical axis wind turbine

Abstract

The new world boom for wind turbines obliged inventors to create new wind turbine designs that have high efficiency and better then known designs. This paper proposes the impeller wind turbine, which uses more effectively the wind energy and depends only on the acting area of the vanes. The vane wind turbine is designed to increase the drag force coefficient of turbine vane that uses kinetic energy of the wind. New design is decrease the negative torque, and can be used worldwide due to its high efficiency. The competitiveness and environmental advantages of wind energy are obvious.