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Power Perfomance Tests on a Different Wind Turbine Rotor Blade Design

[+] Author Affiliations
Ryo Amano, Ilya Avdeev, Ryan Malloy, Mir Zunaid Shams

University of Wisconsin-Milwaukee, Milwaukee, WI

Paper No. POWER2010-27168, pp. 617-627; 11 pages
  • ASME 2010 Power Conference
  • ASME 2010 Power Conference
  • Chicago, Illinois, USA, July 13–15, 2010
  • Conference Sponsors: Power Division
  • ISBN: 978-0-7918-4935-4 | eISBN: 978-0-7918-3876-1
  • Copyright © 2010 by ASME


Most blades available for commercial grade wind turbines incorporate a straight, span-wise profile and airfoil-shaped cross-sections. These blades are found to be very efficient at low and medium wind speeds compared with the potential energy that can be extracted. This paper explores the possibility of increasing the efficiency of the blades by modifying the blade design to incorporate a swept edge. The design intends to maintain efficiency at low to medium wind speeds by selecting the appropriate orientation and size of the airfoil cross-sections based on an oncoming wind speed and given constant rotation rate. The torque generated from a blade with straight edge geometry is compared with that generated from a blade with a swept edge as predicted by CFD simulations. To validate the simulations, the experimental curve of the NTK500/41 turbine using LM19.1 blades will be reproduced using the same computational conditions. In addition, structural deformations, stress distributions, and structural vibration modes are compared between these two different turbine blade surfaces.

Copyright © 2010 by ASME



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