Optimal Design of Novel Blade Profile for Savonius Wind Turbines

Tai-Lin Chang, Shun-Feng Tsai and Chun-Lung Chen
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Tai-Lin Chang: The Department of Marine Engineering, National Taiwan Ocean University, Keelung City 202301, Taiwan
Shun-Feng Tsai: The Department of Marine Engineering, National Taiwan Ocean University, Keelung City 202301, Taiwan
Chun-Lung Chen: The Department of Marine Engineering, National Taiwan Ocean University, Keelung City 202301, Taiwan

Energies, 2021, vol. 14, issue 12, 1-14

Abstract: Since the affirming of global warming, most wind energy projects have focused on the large-scale Horizontal Axis Wind Turbines (HAWTs). In recent years, the fast-growing wind energy sector and the demand for smarter grids have led to the use of Vertical Axis Wind Turbines (VAWTs) for decentralized energy generation systems, both in urban and remote rural areas. The goals of this study are to improve the Savonius-type VAWT’s efficiency and oscillation. The main concept is to redesign a Novel Blade profile using the Taguchi Robust Design Method and the ANSYS-Fluent simulation package. The convex contour of the blade faces against the wind, creating sufficient lift force and minimizing drag force; the concave contour faces up to the wind, improving or maintaining the drag force. The result is that the Novel Blade improves blade performance by 65% over the Savonius type at the best angular position. In addition, it decreases the oscillation and noise accordingly. This study achieved its two goals.

Keywords: renewable energy; green energy; vertical axis wind turbine (VAWT); Savonius wind turbines; wind blade; Taguchi Method; ANSYS-Fluent (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (6)

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