Journal ArticleDOI
Wind tunnel performance data for two- and three-bucket Savonius rotors
TLDR
In this article, a Savonius rotor wind turbine was tested in the Vought Corporation Systems Division 4.9- x 6.1m Low Speed Wind Tunnel to determine aerodynamic performance.Abstract:
Fifteen configurations of a Savonius rotor wind turbine were tested in the Vought Corporation Systems Division 4.9- x 6.1-m Low Speed Wind Tunnel to determine aerodynamic performance. The range of values of the varied parameters was as follows: number of buckets, 2 and 3; nominal freestream velocity, 7 and 14 m/s; Reynolds number per meter, 4.32 x 10/sup 5/ and 8.67 x 10/sup 5/; rotor height, 1 and 1.5 m; rotor diameter (nominal), 1 m; bucket overlap, 0.0 to 0.1 m. The measured test variables were torque, rotational speed, and tunnel conditions. It is concluded that increasing Reynolds number and/or aspect ratio improves performance. The recommended configuration consists of two sets of two-bucket rotors, rotated 90 deg apart, with each rotor having a dimensionless gap width of 0.1 to 0.15.read more
Citations
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Wind energy systems
Gary L. Johnson,P. M. Moretti +1 more
TL;DR: In this article, the authors present the papers given at a workshop on wind turbines, including aerodynamics, load conditions, Darrieus rotors, composite materials, turbine blades, fabrication, fiberglass, vibrations, wind power plants, control systems, data acquisition systems, performance testing, horizontal axis turbines, vertical axis turbines.
Journal ArticleDOI
A review on small scale wind turbines
TL;DR: In this paper, the performance, blade design, control and manufacturing of horizontal axis and vertical axis wind turbines are reviewed based on experimental and numerical studies and lessons learnt from various studies/countries on actual installation of small wind turbines were presented.
Journal ArticleDOI
A review on the performance of Savonius wind turbines
TL;DR: In this paper, the authors present a review on the performance of Savonius wind turbines and present relevant information about their performance, bringing a discussion about the performance and benefits of using this type of turbines.
Journal ArticleDOI
Optimum design configuration of Savonius rotor through wind tunnel experiments
TL;DR: In this article, wind tunnel tests were conducted to assess the aerodynamic performance of single-, two-and three-stage Savonius rotor systems with both semicircular and twisted blades.
Journal ArticleDOI
Experimental investigations on single stage modified Savonius rotor
TL;DR: In this article, the effect of geometrical parameters on the performance of the rotors in terms of coefficient of static torque, coefficient of torque and coefficient of power was investigated in an open jet wind tunnel.
References
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Low-Speed Wind Tunnel Testing
William H. Rae,Alan Pope +1 more
TL;DR: The use of wind tunnel data for aerodynamic experiments has been studied in this article, where three dimensions of three-dimensional flow and pressure, flow, and shear stress measurements are used to calibrate the test section.
Aerodynamic performance of wind turbines
TL;DR: In this paper, the state-of-the-art performance prediction methods for both horizontal and vertical axis wind turbines are summarized and illustrated for various tip loss models and occurrence of multiple solutions in strip theory analysis.
ReportDOI
Aerodynamic performance of wind turbines. Final report
TL;DR: In this article, the state-of-the-art performance prediction methods for both horizontal and vertical axis wind turbines are evaluated for various tip loss models and a comparison of these tip models is developed for the ERDA-NASA MOD-O rotor.