Optimal Design of Novel Blade Profile for Savonius Wind Turbines

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 e...

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Main Authors: Tai-Lin Chang, Shun-Feng Tsai, Chun-Lung Chen
Format: Article
Language:English
Published: MDPI AG 2021-06-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/14/12/3484
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author Tai-Lin Chang
Shun-Feng Tsai
Chun-Lung Chen
author_facet Tai-Lin Chang
Shun-Feng Tsai
Chun-Lung Chen
author_sort Tai-Lin Chang
collection DOAJ
description 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.
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spelling doaj.art-f5f08ab25d7f48f6a01e689b098bfbc32023-11-21T23:48:44ZengMDPI AGEnergies1996-10732021-06-011412348410.3390/en14123484Optimal Design of Novel Blade Profile for Savonius Wind TurbinesTai-Lin Chang0Shun-Feng Tsai1Chun-Lung Chen2The Department of Marine Engineering, National Taiwan Ocean University, Keelung City 202301, TaiwanThe Department of Marine Engineering, National Taiwan Ocean University, Keelung City 202301, TaiwanThe Department of Marine Engineering, National Taiwan Ocean University, Keelung City 202301, TaiwanSince 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.https://www.mdpi.com/1996-1073/14/12/3484renewable energygreen energyvertical axis wind turbine (VAWT)Savonius wind turbineswind bladeTaguchi Method
spellingShingle Tai-Lin Chang
Shun-Feng Tsai
Chun-Lung Chen
Optimal Design of Novel Blade Profile for Savonius Wind Turbines
Energies
renewable energy
green energy
vertical axis wind turbine (VAWT)
Savonius wind turbines
wind blade
Taguchi Method
title Optimal Design of Novel Blade Profile for Savonius Wind Turbines
title_full Optimal Design of Novel Blade Profile for Savonius Wind Turbines
title_fullStr Optimal Design of Novel Blade Profile for Savonius Wind Turbines
title_full_unstemmed Optimal Design of Novel Blade Profile for Savonius Wind Turbines
title_short Optimal Design of Novel Blade Profile for Savonius Wind Turbines
title_sort optimal design of novel blade profile for savonius wind turbines
topic renewable energy
green energy
vertical axis wind turbine (VAWT)
Savonius wind turbines
wind blade
Taguchi Method
url https://www.mdpi.com/1996-1073/14/12/3484
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