Abstract
A 3.3 m diameter variable speed wind turbine and rotor has been designed, fabricated and tested with exchangeable blade tip capability. This rotor was custom designed utilizing the NREL S83X series airfoils for the University of Waterloo Wind Energy (UWWE) research facility with blades allowing the outer 10 of the blade to be exchanged. The winglet was found to have a bell-shaped power augmentation profile, with a broad peak between 6.5 m/s and 9.5 m/s where power was increased by 5% to 8%. These power augmentation figures matched closely with the findings in the literature that suggested increases of 2% to 8% are possible.
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Gertz, D., Johnson, D.A., Swytink-Binnema, N. (2014). Comparative Measurements of the Effect of a Winglet on a Wind Turbine. In: Hölling, M., Peinke, J., Ivanell, S. (eds) Wind Energy - Impact of Turbulence. Research Topics in Wind Energy, vol 2. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-54696-9_18
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DOI: https://doi.org/10.1007/978-3-642-54696-9_18
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