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Enhancing Savonius Vertical Axis Wind Turbine Performance: A Comprehensive Approach with Numerical Analysis and Experimental Investigations

Author

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  • Kumail Abdulkareem Hadi Al-Gburi

    (Department of Mechanical Engineering, Universiti Tenaga Nasional (UNITEN), Kajang 43000, Malaysia)

  • Firas Basim Ismail Alnaimi

    (Power Generation Unit, Institute of Power Engineering (IPE), Universiti Tenaga Nasional (UNITEN), Kajang 43000, Malaysia)

  • Balasem Abdulameer Jabbar Al-quraishi

    (Engineering Technical College of Najaf, Al-Furat Al-Awsat Technical University, Najaf 31001, Iraq)

  • Ee Sann Tan

    (Department of Mechanical Engineering, Universiti Tenaga Nasional (UNITEN), Kajang 43000, Malaysia)

  • Ali Kamil Kareem

    (Biomedical Engineering Department, Al-Mustaqbal University, Hillah 51001, Iraq)

Abstract

Small-scale vertical-axis wind power generation technologies such as Savonius wind turbines are gaining popularity in suburban and urban settings. Although vertical-axis wind turbines ( VAWTs ) may not be as efficient as their horizontal-axis counterparts, they often present better opportunities for integration within building structures. The main issue stems from the suboptimal aerodynamic design of Savonius turbine blades, resulting in lower efficiency and power output. To address this, modern turbine designs focus on optimizing various geometric aspects of the turbine to improve aerodynamic performance, efficiency, and overall effectiveness. This study developed a unique optimization method, incorporating a new blade geometry with guide gap flow for Savonius wind turbine blade design. The aerodynamic characteristics of the Savonius wind turbine blade were extensively analyzed using 3D ANSYS CFX software. The optimization process emphasized the power coefficient as the objective function while considering blade profiles, overlap ratio, and blade number as crucial design parameters. This objective was accomplished using the design of experiments ( DOE ) method with the Minitab statistical software. The research findings revealed that the novel turbine design “ OR0.109BS2BN2 ” outperformed the reference turbine with a 22.8% higher power coefficient. Furthermore, the results indicated a trade-off between the flow (swirling flow) through the gap guide flow and the impact blockage ratio, which resulted from the reduced channel width caused by the extended blade tip length.

Suggested Citation

  • Kumail Abdulkareem Hadi Al-Gburi & Firas Basim Ismail Alnaimi & Balasem Abdulameer Jabbar Al-quraishi & Ee Sann Tan & Ali Kamil Kareem, 2023. "Enhancing Savonius Vertical Axis Wind Turbine Performance: A Comprehensive Approach with Numerical Analysis and Experimental Investigations," Energies, MDPI, vol. 16(10), pages 1-23, May.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:10:p:4204-:d:1151427
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    References listed on IDEAS

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    1. Tai-Lin Chang & Shun-Feng Tsai & Chun-Lung Chen, 2021. "Optimal Design of Novel Blade Profile for Savonius Wind Turbines," Energies, MDPI, vol. 14(12), pages 1-14, June.
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    3. Lee, Jae-Hoon & Lee, Young-Tae & Lim, Hee-Chang, 2016. "Effect of twist angle on the performance of Savonius wind turbine," Renewable Energy, Elsevier, vol. 89(C), pages 231-244.
    4. Kumail Abdulkareem Hadi Al-Gburi & Balasem Abdulameer Jabbar Al-quraishi & Firas Basim Ismail Alnaimi & Ee Sann Tan & Ali Hussein Shamman Al-Safi, 2022. "Experimental and Simulation Investigation of Performance of Scaled Model for a Rotor of a Savonius Wind Turbine," Energies, MDPI, vol. 15(23), pages 1-23, November.
    5. D’Alessandro, V. & Montelpare, S. & Ricci, R. & Secchiaroli, A., 2010. "Unsteady Aerodynamics of a Savonius wind rotor: a new computational approach for the simulation of energy performance," Energy, Elsevier, vol. 35(8), pages 3349-3363.
    6. Heejeon Im & Bumsuk Kim, 2022. "Power Performance Analysis Based on Savonius Wind Turbine Blade Design and Layout Optimization through Rotor Wake Flow Analysis," Energies, MDPI, vol. 15(24), pages 1-17, December.
    7. Tahani, Mojtaba & Rabbani, Ali & Kasaeian, Alibakhsh & Mehrpooya, Mehdi & Mirhosseini, Mojtaba, 2017. "Design and numerical investigation of Savonius wind turbine with discharge flow directing capability," Energy, Elsevier, vol. 130(C), pages 327-338.
    8. Cameron Gerrie & Sheikh Zahidul Islam & Sean Gerrie & Naomi Turner & Taimoor Asim, 2023. "3D CFD Modelling of Performance of a Vertical Axis Turbine," Energies, MDPI, vol. 16(3), pages 1-25, January.
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    Cited by:

    1. Zygmunt Szczerba & Piotr Szczerba & Kamil Szczerba & Marek Szumski & Krzysztof Pytel, 2023. "Wind Tunnel Experimental Study on the Efficiency of Vertical-Axis Wind Turbines via Analysis of Blade Pitch Angle Influence," Energies, MDPI, vol. 16(13), pages 1-21, June.

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