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...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Diponegoro University
2022-11-01
|
| Series: | International Journal of Renewable Energy Development |
| Subjects: | |
| Online Access: | https://ijred.cbiore.id/index.php/ijred/article/view/45799 |
| _version_ | 1827632078306410496 |
|---|---|
| author | Khalid Mrigua Mounia Zemamou Mohammed Aggour |
| author_facet | Khalid Mrigua Mounia Zemamou Mohammed Aggour |
| author_sort | Khalid Mrigua |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-03-09T14:31:05Z |
| format | Article |
| id | doaj.art-b9f162e27c534a709e352f01825f4f6a |
| institution | Directory Open Access Journal |
| issn | 2252-4940 |
| language | English |
| last_indexed | 2024-03-09T14:31:05Z |
| publishDate | 2022-11-01 |
| publisher | Diponegoro University |
| record_format | Article |
| series | International Journal of Renewable Energy Development |
| spelling | doaj.art-b9f162e27c534a709e352f01825f4f6a2023-11-28T02:08:37ZengDiponegoro UniversityInternational Journal of Renewable Energy Development2252-49402022-11-011141113112310.14710/ijred.2022.4579920767Numerical Investigation of a New Modified Savonius Wind TurbinesKhalid Mrigua0https://orcid.org/0000-0002-1513-4752Mounia Zemamou1https://orcid.org/0000-0001-9212-6660Mohammed Aggour2https://orcid.org/0000-0001-5801-1958Laboratory of Electronic Systems, Information Processing, Mechanics and Energy, Faculty of Science, Ibn Tofail University, B.P 133, 14000, Kenitra, MoroccoLaboratory of Electronic Systems, Information Processing, Mechanics and Energy, Faculty of Science, Ibn Tofail University, B.P 133, 14000, Kenitra, MoroccoLaboratory of Electronic Systems, Information Processing, Mechanics and Energy, Faculty of Science, Ibn Tofail University, B.P 133, 14000, Kenitra, MoroccoThe 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.https://ijred.cbiore.id/index.php/ijred/article/view/45799savonius rotorwind energywind turbinecomposed blade, power coefficient. |
| spellingShingle | Khalid Mrigua Mounia Zemamou Mohammed Aggour Numerical Investigation of a New Modified Savonius Wind Turbines International Journal of Renewable Energy Development savonius rotor wind energy wind turbine composed blade, power coefficient. |
| title | Numerical Investigation of a New Modified Savonius Wind Turbines |
| title_full | Numerical Investigation of a New Modified Savonius Wind Turbines |
| title_fullStr | Numerical Investigation of a New Modified Savonius Wind Turbines |
| title_full_unstemmed | Numerical Investigation of a New Modified Savonius Wind Turbines |
| title_short | Numerical Investigation of a New Modified Savonius Wind Turbines |
| title_sort | numerical investigation of a new modified savonius wind turbines |
| topic | savonius rotor wind energy wind turbine composed blade, power coefficient. |
| url | https://ijred.cbiore.id/index.php/ijred/article/view/45799 |
| work_keys_str_mv | AT khalidmrigua numericalinvestigationofanewmodifiedsavoniuswindturbines AT mouniazemamou numericalinvestigationofanewmodifiedsavoniuswindturbines AT mohammedaggour numericalinvestigationofanewmodifiedsavoniuswindturbines |