The Influence of the Number of Levels on the Behavior of a Vertical Axis Wind Turbine with Two Pairs of Blades and Periodic Aerodinamic Couplings

  • Nelu CAZACU "Dunarea de Jos" University of Galati, Romania
Keywords: wind turbines, wind tunnel, wind speed

Abstract

Vertical-axis wind turbines (VAWT) with 1 pair of semi-cylindrical and overlapping blades have an uneven torque. The work is based on wind tunnel experiments on experimental models that still contain a couple of auxiliary blades. The model has several levels and constructively the role of the blades changes from one level to another. The experiments in the wind tunnel confirm the important effect of the levels with changing the role of the blades until the complexity of accomplishment increases.

Creative Commons License

References

[1]. Hau Erich, Wind Turbines, Fundamentals, Technologies, Applications, Economics, s.l.: Springler, 2006.
[2]. Menet J. L., Bourabaa N., Increase in a savonius rotor efficiency.
[3]. Benesh A., Wind turbine system using a vertical axis Savoniustype rotor, US Patent 4784568, 1988.
[4]. Hansen M. L. O., Aerodynamics of Wind Turbines, 2nd ed., Earthscan, 2008, 2nd ed., Padstow Earthscan, 2008, ISBN: 978-1-84407-438-9.
[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 Hugh, Small Wind Turbine Design Notes, 1998.
[7]. Nelson V., Wind Energy. Renewable Energy and the Environment, s.l.: Taylor & Francis Group LLC, 2009.
[8]. Saha U. K., Rajkumar M. J., On the performance analysis of Savonius rotor with twisted blades, Renewable Energy, 31, 2006.
Published
2019-09-15
How to Cite
1.
CAZACU N. The Influence of the Number of Levels on the Behavior of a Vertical Axis Wind Turbine with Two Pairs of Blades and Periodic Aerodinamic Couplings. The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science [Internet]. 15Sep.2019 [cited 22May2024];42(3):5-0. Available from: https://www.gup.ugal.ro/ugaljournals/index.php/mms/article/view/2798
Section
Articles

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