Wind Tunnel Analysis on Performance of H-Rotor VAWTs with NACA 64xx Blades

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Abstract:

The purpose of this study was to explore the effects of wind speed, airfoil thickness and setting angle of blades on the output performance of a VAWT system. Three shapes of the blades as NACA6422, NACA6412, and NACA6404 were fabricated and installed in the support mechanism to test the effect of airfoil thickness on the output performance. Results indicated that the section shape of blade with a cambered NACA 64XX series is prior to the ordinary symmetric NACA0022 series used in VAWT systems. The statistic analysis showed that the contribution of setting angle on the output performance is 12.27%, which is higher than that of thickness of airfoil as 2.93% when the extra load was applied on the VAWT system during tests. For application of VAWT systems in the densely populated urban areas, it is suggested that the blades with cambered airfoil of NACA6422 is suitable for electrical power generation.

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Periodical:

Advanced Materials Research (Volumes 488-489)

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1213-1218

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March 2012

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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[1] M. D'Ambrosio and M. Marco : Vertical Axis Wind Turbines: History, Technology and Applications, Master thesis in Energy Engineering, University of Halmstad, Sweden, (2010).

Google Scholar

[2] I. Hwang, S. Min, I. Jeong, Y. Lee and S. Kim : Efficiency Improvement of a New Vertical Axis Wind Turbine by Individual Active Control of Blade Motion, Smart Structures and Materials 2006: Smart Structures and Integrated Systems, Vol. 6173, pp.316-323, (2006).

DOI: 10.1117/12.658935

Google Scholar

[3] M. Islam, A. Fartaj and R. Carriveau : Analysis of the Design Parameters Related to a Fixed-pitch Straight-Bladed Vertical Axis Wind Turbine, Wind Engineering, Vol. 32, No. 5, pp.491-507, (2008).

DOI: 10.1260/030952408786411903

Google Scholar

[4] J. Winchester and S. Quayle: Torque Ripple and Variable Blade Force: A Comparison of Darrieus and Gorlov-Type Turbines for Tidal Stream Energy Conversion, the 8th European Wave and Tidal Energy Conference, Uppsala, Sweden, pp.668-676, (2009).

Google Scholar

[5] A. J. Fiedler and S. Tullis: Blade Offset and Pitch Effects on a High Solidity Vertical Axis Wind Turbine, Wind Engineering, Vol. 33, pp.237-246, (2009).

DOI: 10.1260/030952409789140955

Google Scholar

[6] M. El-Samanoudy, A. A. E. Ghorab and S. Z. Youssef: Effect of Some Design Parameters on the Performance of a Giromill Vertical Axis Wind Turbine, Ain Shams Engineering Journal, Vol. 1, Issue 1, pp.85-95, (2010).

DOI: 10.1016/j.asej.2010.09.012

Google Scholar