Numerical Investigation of a New Modified Savonius Wind Turbines

The classic Savonius semi-circular blade turbine has a relatively low power coefficient.The performance of a Savonius wind turbine depends on its geometrical parameters. Various blade profiles have been developed in the past years to improve the performance of this class of turbine. In this paper, a...

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Main Authors: Mrigua, Khalid (Author), Zemamou, Mounia (Author), Aggour, Mohammed (Author)
Format: EJournal Article
Published: Center of Biomass & Renewable Energy, Diponegoro University, 2022-11-01.
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LEADER 02412 am a22002653u 4500
001 IJRED_UNDIP_45799_pdf
042 |a dc 
100 1 0 |a Mrigua, Khalid  |e author 
700 1 0 |a Zemamou, Mounia  |e author 
700 1 0 |a Aggour, Mohammed  |e author 
245 0 0 |a Numerical Investigation of a New Modified Savonius Wind Turbines 
260 |b Center of Biomass & Renewable Energy, Diponegoro University,   |c 2022-11-01. 
500 |a https://ejournal.undip.ac.id/index.php/ijred/article/view/45799 
520 |a The classic Savonius semi-circular blade turbine has a relatively low power coefficient.The performance of a Savonius wind turbine depends on its geometrical parameters. Various blade profiles have been developed in the past years to improve the performance of this class of turbine. In this paper, a new blade shapes of Savonius wind turbine is investigated numerically by using the CFD method , by using transient conditions and set k omega turbulence model.The new blade has different concave and convex shape, which is a combination of the conventional and the elliptical blade. A comparative study of three blade profiles, semi-circular, elliptical and the composed blades have been performed.Flow structures around the rotor have also been analyzed. The results show that changing the blade shape has an effect on the performance efficiency of the Savonius turbine.The new modified and the elliptical blade exhibit higher performance compared to the conventional Savonius wind turbine. The new modified Savonius blade and the elliptical blade exhibit an improved performance compared to the conventional model in the order of 20.5% and 18.2% respectively at the tip speed ratio of 0.8. 
540 |a Copyright (c) 2022 The Author(s). Published by Centre of Biomass and Renewable Energy (CBIORE) 
540 |a https://creativecommons.org/licenses/by-sa/4.0 
546 |a eng 
690 |a Savonius rotor; Wind energy; Wind turbine; Composed blade, power coefficient. 
655 7 |a info:eu-repo/semantics/article  |2 local 
655 7 |a info:eu-repo/semantics/publishedVersion  |2 local 
655 7 |2 local 
786 0 |n International Journal of Renewable Energy Development; Vol 11, No 4 (2022): November 2022; 1113-1123 
786 0 |n 2252-4940 
787 0 |n https://ejournal.undip.ac.id/index.php/ijred/article/view/45799/pdf 
856 4 1 |u https://ejournal.undip.ac.id/index.php/ijred/article/view/45799/pdf  |z Get Fulltext