NDLI: Optimization of Two and Three Rotor Savonius Wind Turbine

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Ahmed, M. Baz Nabil, A. Mahmoud Ashraf, M. Hamed Khaled, M. Youssef
Copyright Year	2015
Abstract	The present work investigates the performance of Savonius wind turbine using two or three rotors. The new turbine design was found to have higher power coefficient compared with single rotor design. The peak average power coefficient of the three rotors was computed to be 50% higher than that of the single rotor design. The torque coefficient was also higher than that of the single rotor turbine at high tip speed ratio. This improved performance is attributed to the favorable aerodynamic interaction between the rotors which accelerates the flow around the rotors and generates higher turning torque in the direction of rotation for each rotor. The optimized arrangement of rotors showed that the upstream rotor and one downstream rotor should have a similar direction of rotation while the second downstream rotor is rotating in opposite direction.
Sponsorship	International Gas Turbine Institute
File Format	PDF
ISBN	9780791856802
DOI	10.1115/GT2015-43988
Volume Number	Volume 9: Oil and Gas Applications; Supercritical CO2 Power Cycles; Wind Energy
Conference Proceedings	ASME Turbo Expo 2015: Turbine Technical Conference and Exposition
Language	English
Publisher Date	2015-06-15
Publisher Place	Montreal, Quebec, Canada
Access Restriction	Subscribed
Subject Keyword	Design Torque Rotors Savonius wind turbines Rotation Flow (dynamics) Optimization Turbines
Content Type	Text
Resource Type	Article

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