CFD simulation study of multistage vertical axis wind turbine (VAWT)

Baharudin, Muhammad Azzrul Ashraff and Didane, Djamal Hissein and Batcha, Mohd Faizal Mohideen and Abdullah, Kamil and Mohammed, Akmal Nizam and ., Mas Fawzi (2020) CFD simulation study of multistage vertical axis wind turbine (VAWT). In: Advances in Mechanical, Manufacturing and Aerospace Engineering. Penerbit UTHM, pp. 47-60. ISBN 978-967-2916-56-7

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Abstract

Nowadays, the generation of energy from wind power has grown significantly as one of the most important renewable energy sources in the world today. In this study, the performance of a multistage vertical axis wind turbine (VAWT) has been assessed through 3D computational fluid dynamics (CFD) simulation approach based on K-omega shear stress transport (SST) models using the ANSYS Software. The inexpensive, omnidirectional, compact and easy to assemble Savonius rotor has been applied in this study along with the multistage-rotor concept. Multistage-rotor is where one stage of the rotor is placed on top of another stage of the rotor. The wind speed tested ranges from 5 m/s to 11 m/s at a tip-speed ratio (TSR) ranging from 0.2 to 1.0. The findings for torque and power with different operating wind speed demonstrated that as the wind speed increases at constant tip-speed ratio (TSR), the torque also increases; meanwhile, the torque coefficient decreases. However, when the wind speed increases along with the increasing TSR, the power generated increases. Meanwhile, the performance power coefficient has a directly proportional relationship with the TSR and an inverse relation with the wind speed tested.

Item Type:	Book Section
Uncontrolled Keywords:	Mechanical, Manufacturing and Aerospace Engineering; Research Advances in Malaysia; Government publications -- Malaysia
Subjects:	T Technology > TJ Mechanical engineering and machinery T Technology > TL Motor vehicles. Aeronautics. Astronautics > TL500-777 Aeronautics. Aeronautical engineering
Divisions:	Faculty of Mechanical and Manufacturing Engineering > Department of Mechanical Engineering
Depositing User:	Mrs. Siti Noraida Miskan
Date Deposited:	03 Jan 2022 07:06
Last Modified:	03 Jan 2022 07:06
URI:	http://eprints.uthm.edu.my/id/eprint/3090

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