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The effect of darrieus and savonius wind turbines position on the performance of the hybrid wind turbine at low wind speed

This paper presents an experimental and numerical simulation to investigate a hybrid vertical axis wind turbine model highly efficient which can be worked at low wind speed by studying the aerodynamic characteristics of four models of hybrid VAWTs. The hybrid WT consists of the SWT having two blades and the DWT type straight having two blades. | The effect of darrieus and savonius wind turbines position on the performance of the hybrid wind turbine at low wind speed International Journal of Mechanical Engineering and Technology IJMET Volume 11 Issue 2 February 2020 pp. 56-72 Article ID IJMET_11_02_006 Available online at http www.iaeme.com ijmet issues.asp JType IJMET amp VType 11 amp IType 2 ISSN Print 0976-6340 and ISSN Online 0976-6359 IAEME Publication THE EFFECT OF DARRIEUS AND SAVONIUS WIND TURBINES POSITION ON THE PERFORMANCE OF THE HYBRID WIND TURBINE AT LOW WIND SPEED Nawfal M. Ali Dr. Abdul Hassan A. K and Dr. Sattar Aljabair Department of Mechanical Engineering University of Technology Baghdad Iraq ABSTRACT This paper presents an experimental and numerical simulation to investigate a hybrid vertical axis wind turbine model highly efficient which can be worked at low wind speed by studying the aerodynamic characteristics of four models of hybrid VAWTs. The hybrid WT consists of the SWT having two blades and the DWT type straight having two blades. Four models were constructed to study experimentally and numerically to choose the best model. Two models were DWT in the upper and SWT in the lower also two models were SWT in the upper and DWT in the lower. The phase stage angle between the turbines is 0o and 90o. The experimental and numerical results showed that the performance of hybrid WT where DWT in the upper and SWT in the lower with phase stage 90o is better than in the other models it can be started to work at a wind velocity of 2.2 m s. At the wind velocity 3 m s the values of the parameters are the rotational speed 198 rpm the CP 0.3195 the CT 0.2003 the TSR 1.6 and self-starting rotation at this value of wind velocity 3 m s . The efficiency of extracting the wind power by hybrid WT is 51.2 . Keywords Hybrid wind turbine Vertical axis wind turbine Low wind speed. Cite this Article Nawfal M. Ali Dr. Abdul Hassan A. K. and Dr. Sattar Aljabair The Effect of Darrieus and Savonius Wind .