The Influence of the Number of Blades and the Number of Levels on Behavior of the "S" - Rotor Experimental Models
Keywords:
vertical axis wind turbines, Savonius wind turbine
Abstract
The paper is based on wind tunnel (WT) experiments on experimental models (EMs), vertical axis wind turbines (VAWT), Savonius (SWT, "S" Turbine). The experimental models had the maximum dimensions: height of 0.395 m, and diameter of 0.150 m.
A study was conducted concerning the behavior of the EM experimental models for the level (1L) and three levels with a pair of blades (1PB) and a level with two pairs of blades (1L - 2PB). Wind speeds ranging from 0 to 2 m/s were used. Test section of the wind tunnel was 0,5 m x 0,5 m (0,25 m2) and a shutter coefficient of 0.23. Experiments performed confirm the SWT's good behavior at low wind speeds and the possibility of being used to generate low-power electric power with DC generators.
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References
[1]. Blackwell B., Wind tunnel performance data for two bucket savonius rotors, 1977.
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[9]. Zigman A., Optimization of a Savonis Rotor Vertical-Axes wind turbine. Massachussets: MIT, 2007.
[2]. Badea N., Sistem integrat de poligenerare descentralizata a energiei din surse regenerabile, CBI A/00402/2011. 29 Aprilie 2011.
[3]. Manwell J.F., McGowan J.G., Rogers A.L., Wind Energy Explained. Theory, Design And Application. Publisher: John Wiley & Sons Ltd, p. 590, 2002.
[4]. Nelson V., Wind Energy. Renewable Energy and the Environment. Publisher: Taylor & Francis Group LLC, 2009.
[5]. Smulders P.T., Rotors for wind power. Eindhoven: University of Technology, Eindhoven, Faculty of Physics, 1st edition October 1991, (revised edition January 2004).
[6]. Piggot H., Small Wind Turbine Design Notes. 1998.
[7]. Menet J.L., Bourabaa N., Increase in a savonius rotor efficiency, European Wind Energy conference, 2004.
[8]. Saha U.K., Rajkumar M.J., On the performance analysis of Savonius rotor with twisted blades, 31, Vol. Renewable Energy, 2006.
[9]. Zigman A., Optimization of a Savonis Rotor Vertical-Axes wind turbine. Massachussets: MIT, 2007.
Published
2017-12-15
How to Cite
1.
CAZACU N. The Influence of the Number of Blades and the Number of Levels on Behavior of the "S" - Rotor Experimental Models. The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science [Internet]. 15Dec.2017 [cited 25Dec.2024];40(4):58-3. Available from: https://gup.ugal.ro/ugaljournals/index.php/mms/article/view/1131
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