The Influence of the Number of Semi-Cycindrical Cups on the Behavior of an Experimental Model of Vertical Axis Wind Turbine at Low Wind Speed and no Load

  • Nelu CAZACU "Dunarea de Jos" University of Galati, Romania
Keywords: Savonius, S-rotor, rotation speed, semi-cylindrical cups

Abstract

The work is based on experiments made in the wind tunnel on experimental models of Savonius type wind turbines with blades in the shape of a semicylindrical cup. The number of blades changes: 2, 3, 4, 5 and 6. The experimental model allows the addition / removal of blades in the form of a semi-cylindrical cup followed by static balancing. The wind tunnel used has the measuring area 0.5 mx0.5 m and the length of 1.25 m and the experimental models have the interception surface at a maximum value of 10% of the cross-sectional area of the wind tunnel (diameter 158 mm and height 158 mm). The experiments were performed at wind speeds between 0...9.7 m/s between peaks and no (mechanical and / or electrical) loads. The results confirm the influence of the number of semi-cylindrical cups on the rotational speed and other factors over experimental model of Savonius type turbines in no load conditions.

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References

[1]. Hau Erich, Wind Turbines, Fundamentals, Technologies, Applications, Economics, s.l.: Springler, 2006.
[2]. Manwell J. F., McGowan J. G., Rogers A. L., Wind Energy Explained. Theory, Design and Application, s.l. John Wiley & Sons Ltd., p. 590, 2002.
[3]. The European Wind energy association, Wind in power, 2010 European statistics, 2011.
[4]. Piggot Hugh, Small Wind Turbine Design Notes, 1998.
[5]. Menet J. L., Bourabaa N., Increase in a savonius rotor efficiency.
[6]. Archer Cristina L., Jacobson Mark Z., Evaluation of global wind power, Journal of Geophysical Research, vol. 11, D12110, 2005.
[7]. Cazacu Nelu, Load Behavior of a Vertical Axle Wind Turbine Model with Four Blades Periodically Couple Aerodynamically, The Annals of “Dunarea de Jos” University of Galati, Fascicle IX, Metallurgy and Materials Science, Galati University Press, vol. 3, p. 5-11, ISSN 2668-4748; e-ISSN 2668 4756, 2018.
[8]. Cazacu Nelu, Improving the Powerful Behavior of an ExperimentaL model of Savonius Turbine (S-rotor) with Couple Aerodynamic Additional Blades, The Annals of “Dunarea de Jos” University of Galati, Fascicle IX, Metallurgy and Materials Science, Galati University Press, vol. 2, p. 49-53, ISSN 1453-083X, 2018.
[9]. Cazacu Nelu, The Influence of Number of Blades and the Number of Levels on Behaviorof the “S-rotor” Experimental Model, The Annals of “Dunarea de Jos” University of Galati, Fascicle IX, Metallurgy and Materials Science, Galati University Press, vol. 4, p. 58-63, ISSN 1453-083X, 2017.
[10]. Cazacu Nelu, The Behavior of an Experimental Model of Wind Turbine with Vertical Axle with Overlapped Cups at Low Wind Speeds, The Annals of “Dunarea de Jos” University of Galati, Fascicle IX, Metallurgy and Materials Science, Galati University Press, vol. 4, p. 51-57, ISSN 1453-083X, 2017.
[11]. Cazacu Nelu, Lucaci Bogdan Cătălin, Functional Model of Savoniuus Type Verrtical Axis Wind Turbine with Periodoc Coupling of Adjacent Vertical Blades, The Annals of “Dunarea de Jos” University of Galati, Fascicle IX, Metallurgy and Materials Science, vol. 4, p. 69-76, 2014.
Published
2020-09-15
How to Cite
1.
CAZACU N. The Influence of the Number of Semi-Cycindrical Cups on the Behavior of an Experimental Model of Vertical Axis Wind Turbine at Low Wind Speed and no Load. The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science [Internet]. 15Sep.2020 [cited 25May2024];43(3):43-. Available from: https://www.gup.ugal.ro/ugaljournals/index.php/mms/article/view/3949
Section
Articles

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