Experimental and Simulation Investigation of Performance of Scaled Model for a Rotor of a Savonius Wind Turbine

Kumail Abdulkareem Hadi Al-Gburi, Balasem Abdulameer Jabbar Al-quraishi, Firas Basim Ismail Alnaimi (), Ee Sann Tan and Ali Hussein Shamman Al-Safi
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Kumail Abdulkareem Hadi Al-Gburi: Department of Mechanical Engineering, 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
Firas Basim Ismail Alnaimi: Power Generation Unit, Institute of Power Engineering (IPE), Universiti Tenaga Nasional (UNITEN), Kajang 43000, Malaysia
Ee Sann Tan: Department of Mechanical Engineering, Universiti Tenaga Nasional (UNITEN), Kajang 43000, Malaysia
Ali Hussein Shamman Al-Safi: Computer Techniques Engineering Department, Al-Mustaqbal University College, Hillah 51001, Iraq

Energies, 2022, vol. 15, issue 23, 1-23

Abstract: Renewable energy sources are preferred for many power generation applications. Energy from the wind is one of the fastest-expanding kinds of sustainable energy, and it is essential in preventing potential energy issues in the foreseeable future. One pertinent issue is the many geometrical alterations that the scientific community has suggested to enhance rotor performance features. Hence, to address the challenge of developing a model that resolves these problems, the purpose of this investigation was to determine how well a scaled-down version of a Savonius turbine performed in terms of power output using a wind tunnel. Subsequently, the effect of the blockage ratio produced in the wind tunnel during the chamber test on the scaled model was evaluated. This study discusses the influences of various modified configurations on the turbine blades’ torque and power coefficients ( Cp ) at various tip speed ratios ( TSRs ) using three-dimensional (3D) unsteady computational fluid dynamics. The findings showed that the scaled model successfully achieved tunnel blockage corrections, and the experimental results obtained can be used in order to estimate how the same turbine would perform in real conditions. Furthermore, numerically, the new models achieved improvements in Cp of 19.5%, 16.8%, and 12.2%, respectively, for the flow-guiding channel (FGC at Ⴔ = 30°), wavy area at tip and end (WTE), and wavy area on the convex blade (WCB) models in comparison to the benchmark S-ORM model and under identical wind speed conditions. This investigation can provide guidance for improvements of the aerodynamic characteristics of Savonius wind turbines.

Keywords: wind energy; Savonius wind turbine; S-ORM model; coefficient of power; CFX analysis; rotor experimental testing (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: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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