Analysis of the Behavior in the Wind Tunnel of an Experimental Model of Savonius with Interlocking Cups with the Classic Ones with 2, 3 and 4 Semi-Cylindrical Cups

  • Nelu CAZACU "Dunarea de Jos" University of Galati, Romania
Keywords: Savonius rotor, S-rotor, low wind, experimental model

Abstract

The paper is based on experiments conducted on the wind tunnel at low wind speeds (<9.5 m/s), on an experimental model of S-rotor wind turbine type with four blades and a D/H ratio of 1. Semi-cylindrical cups opposite 180 degrees are aerodynamically coupled by overlap and with an air passage gap to equalize the pressures. The formed channel is shaped to allow the same for pairs of blades at 90 degrees. The experimental model has an area of 0.025 m2 which represents 10% of the surface of the measuring section of the wind tunnel (0.25 m2). The behavior of the experimental model was compared with the experimental models of S-rotor with 2, 3 and 4 semi-cylindrical cups, with the same interception surface. The results confirm the better start of the experimental model by reducing dead zones and operating more evenly and stably over a longer range of wind speeds. The results confirm the validity of the proposed concept of interwoven aerodynamic coupling of semi-cylindrical cups.

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References

[1]. Badea Nicolae, et al., Sistem integrat de poligenerare descentralizata a energiei din surse regenerabile, CBI A/00402/2011, 29 Aprilie 2011.
[2]. Cazacu Nelu, Renewable Energy Sources for the mCCHP-SERES System, [autorul cărții] Badea N (ed). Design for Microcombined Cooling Heating and Power System, London: Springler, 2015.
[3]. ***, Experimental Model of Wind turbime with Vertical Axis, Multy-Storey and with two Pairs of Blades on level Aerodynamic Coupled, The Annals of ”Dunarea de Jos” University of Galati, Fascicle IX, Metallurgy and Materials Science, vol. 2, p. 21-26, ISSN 2668-4748, e-ISSN 2668-4756, 2019.
[4]. Menet J. L., Bourabaa N., Increase in a savonius rotor efficiency.
[5]. Cazacu Nelu, Improving the Powerful Behavior of an ExperimentaL model of Savonius Turbine (S-rotor) with Couple Aerodynamic Additional Blades, The Annals of ”Dunărea de Jos” University of Galati, Fascicle IX, Metallurgy and Materials Science, Galati University Press, vol. 2, p. 49-53, ISSN 1453 083X, 2018.
[6]. Hau Erich, Wind Turbines, Fundamentals, Technologies, Applications, Economics, s.l.: Springler, 2006.
[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.
Published
2021-03-15
How to Cite
1.
CAZACU N. Analysis of the Behavior in the Wind Tunnel of an Experimental Model of Savonius with Interlocking Cups with the Classic Ones with 2, 3 and 4 Semi-Cylindrical Cups. The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science [Internet]. 15Mar.2021 [cited 21Sep.2021];44(1):11-8. Available from: https://www.gup.ugal.ro/ugaljournals/index.php/mms/article/view/4317
Section
Articles