Abstract

CHABANE, Foued; BARKAT, Mohamed Aymene  and  ARIF, Ali. Aerodynamic shape optimization of a vertical-axis wind turbine with effect number of blades. Dyna rev.fac.nac.minas [online]. 2022, vol.89, n.220, pp.154-162.  Epub Sep 14, 2022. ISSN 0012-7353.  https://doi.org/10.15446/dyna.v89n220.94343.

Our research consists of the experimental study of the vertical wind turbine of form H. The study represents the effect of the number of blades in the variation of the number of rotations of the vertical wind turbine, the speed ratio, torque, the power of the wind turbine, and the torque force. The H-shaped vertical axis wind turbine was carried out in the hall of the University of Biskra, where the research was manifested in the study of the dimensions imposed in the experiment from the length of the propeller and the extent of its curvature in the width of the propeller; we also recorded each of the numbers of rotations of vertical axis wind turbines. Evidently, It has been proven that the wind energy coefficient increases with the increase in the number of blades. It is further noted that a higher number of blades- equal to 20- gave a high wind speed of 15.2 m / s, the number of rotations equal to 239.2 rpm. The various parameters such as the power coefficient, the speed quotient, and the quotient of the area of the fluid passage section for each were established by a model with low errors and with a perfect approximation.

Keywords : vertical axis wind turbine; blades; wind speed; power coefficient; tip ratio speed.

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