Desirable Airfoil Characteristics for Large Variable-Speed Horizontal Axis Wind Turbines

[+] Author and Article Information
P. Giguère, M. S. Selig

Department of Aeronautical and Astronautical Engineering, University of Illinois at Urbana-Champaign, 306 Talbot Laboratory, 104 S. Wright Street, Urbana, IL 61801-2935

J. Sol. Energy Eng 119(3), 253-260 (Aug 01, 1997) (8 pages) doi:10.1115/1.2888028 History: Received December 01, 1996; Revised March 01, 1997; Online February 14, 2008


In an effort to define the desirable airfoil characteristics for large variable-speed wind turbines, a systematic study was performed using a series of airfoils designed to have similar aerodynamic properties, except for the amount of lift, which varied over a wide range. For several airfoil combinations, blade shapes were designed for a 750-kW wind turbine with a 48.8-m diameter rotor using the optimization code PROPGA together with PROPID, which is an inverse design method for horizontalaxis wind turbines. Roughness effects, including the consideration of dirty-blade performance in the blade-shape optimization process, were also considered and are discussed. The results and conclusions reveal practical design implications that should aid in the aerodynamic blade design of not only large but also other sizes of variable-speed wind turbines.

Copyright © 1997 by The American Society of Mechanical Engineers
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