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Performance Analysis of a Combined Blade Savonius Wind Turbines
Arifin Sanusi,Sudjito Soeparman,Slamet Wahyudi,Lilis Yuliati 한국유체기계학회 2017 International journal of fluid machinery and syste Vol.10 No.1
The Savonius wind turbine has a lower performance than other types of wind turbines which may attract more study focus on this turbine. This study aimed to improve wind turbine performance by combining a conventional blade with an elliptical blade into a combined blade rotor. The analysis was performed on three blade models in computational fluid dynamics (CFD) using ANSYS_Fluent Release 14.5. Then the results were verified experimentally using an open wind tunnel system. The results of the numerical simulation were similar to the experimental and showed that the combined blade rotor has better dragging flow and overlap flow than the conventional and elliptical blade. Experimental verification showed that the combined blade was to increase the maximum coefficient of power (Cpmax.) by 11% of the conventional blade and to 5.5% of the elliptical blade.
Performance Analysis of a Combined Blade Savonius Wind Turbines
Sanusi, Arifin,Soeparman, Sudjito,Wahyudi, Slamet,Yuliati, Lilis Korean Society for Fluid machinery 2017 International journal of fluid machinery and syste Vol.10 No.1
The Savonius wind turbine has a lower performance than other types of wind turbines which may attract more study focus on this turbine. This study aimed to improve wind turbine performance by combining a conventional blade with an elliptical blade into a combined blade rotor. The analysis was performed on three blade models in computational fluid dynamics (CFD) using ANSYS_Fluent Release 14.5. Then the results were verified experimentally using an open wind tunnel system. The results of the numerical simulation were similar to the experimental and showed that the combined blade rotor has better dragging flow and overlap flow than the conventional and elliptical blade. Experimental verification showed that the combined blade was to increase the maximum coefficient of power ($Cp_{max.}$) by 11% of the conventional blade and to 5.5% of the elliptical blade.
Characteristics of the Savonius Wind Turbine Using Multiple Guide Vanes
Budi Sugiharto,Sudjito Soeparman,Denny Widhiyanuriyawan,Slamet Wahyudi 한국유체기계학회 2020 International journal of fluid machinery and syste Vol.13 No.3
This paper aims at identifying the characteristics of the Savonius Wind Turbine using a guide vane, which functions as the steering mechanism and reduces the negative torsion on the returning blade. The addition of the guide vane did not influence the turbine’s capacity in receiving wind direction. The number of guide vanes varied from 4, 8, and 16 with an angle of 45°. The testing was conducted in a wind tunnel at the wind speeds of 4 ㎧, 5 m/s and 6 ㎧. The turbine with the additional 16 guide vanes gave the best result. The static torsion increased by 84%, dynamic torsion increased by 57%, and the coefficient of power increased by 58% a t the speed of 4 ㎧.