The reduction in cost of energy from wind turbines requires many technical contributions from all areas of Wind Energy Conversion Systems. The concept of a telescopic blade has been analyzed to improve rotor blade performance. The effect of a step change is significant for any extension. The current simulation model in WT Perf with a Prandtl tip and hub loss model over-predicts the rotor performance. The correlations developed herein for telescopic blades with step change in the blade chord are in good agreement with the experimental data. The maximum loss for a rotor blade with a step change occurs when the extension is equal to the root blade chord.
Wind Tunnel Testing of a Telescopic Blade Wind Turbine
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Imraan, M, Sharma, RN, & Flay, RGJ. "Wind Tunnel Testing of a Telescopic Blade Wind Turbine." Proceedings of the ASME 2011 Power Conference collocated with JSME ICOPE 2011. ASME 2011 Power Conference, Volume 2. Denver, Colorado, USA. July 12–14, 2011. pp. 493-499. ASME. https://doi.org/10.1115/POWER2011-55070
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