Numerical and experimental investigations on a hybrid vertical axis wind turbine
Wind energy represents one of the main sources of renewable energies. Innovation in wind turbine technology tends to focus on increasing energy production, especially at low wind velocities. Vertical axis wind turbines could have a greater expansion because they have many advantages, such as the cap...
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| Format: | Article |
| Language: | English |
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EDP Sciences
2025-01-01
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| Series: | E3S Web of Conferences |
| Online Access: | https://www.e3s-conferences.org/articles/e3sconf/pdf/2025/08/e3sconf_eenviro2024_01002.pdf |
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| author | Budea Sanda Simionescu Ștefan-Mugur Copăceanu Valentin |
| author_facet | Budea Sanda Simionescu Ștefan-Mugur Copăceanu Valentin |
| author_sort | Budea Sanda |
| collection | DOAJ |
| description | Wind energy represents one of the main sources of renewable energies. Innovation in wind turbine technology tends to focus on increasing energy production, especially at low wind velocities. Vertical axis wind turbines could have a greater expansion because they have many advantages, such as the capacity to start at low wind velocities and no need for orientation to the wind direction. The present paper analyses numerically and experimentally, a Savonius-Darrieus hybrid wind system on a common vertical shaft. CFD modeling and simulation show a slight instability at low velocities, up to entering the nominal working regime of 2-3 m/s, but also the separation of vortices and the fluid-blade interaction at over 9 m/s. At higher velocities, the performances and the power coefficients decrease, observations demonstrated also experimentally within the study. The optimal wind velocity for the Savonius-Darrieus vertical turbine is 6 m/s. |
| format | Article |
| id | doaj-art-db67a11d7eed436eabf47d46c5737dcb |
| institution | Kabale University |
| issn | 2267-1242 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | E3S Web of Conferences |
| spelling | doaj-art-db67a11d7eed436eabf47d46c5737dcb2025-02-05T10:49:33ZengEDP SciencesE3S Web of Conferences2267-12422025-01-016080100210.1051/e3sconf/202560801002e3sconf_eenviro2024_01002Numerical and experimental investigations on a hybrid vertical axis wind turbineBudea Sanda0Simionescu Ștefan-Mugur1Copăceanu Valentin2Department of Hydraulics, Hydraulic Machinery and Environmental Engineering, National University of Science and Technology Politehnica of BucharestDepartment of Hydraulics, Hydraulic Machinery and Environmental Engineering, National University of Science and Technology Politehnica of BucharestDepartment of Hydraulics, Hydraulic Machinery and Environmental Engineering, National University of Science and Technology Politehnica of BucharestWind energy represents one of the main sources of renewable energies. Innovation in wind turbine technology tends to focus on increasing energy production, especially at low wind velocities. Vertical axis wind turbines could have a greater expansion because they have many advantages, such as the capacity to start at low wind velocities and no need for orientation to the wind direction. The present paper analyses numerically and experimentally, a Savonius-Darrieus hybrid wind system on a common vertical shaft. CFD modeling and simulation show a slight instability at low velocities, up to entering the nominal working regime of 2-3 m/s, but also the separation of vortices and the fluid-blade interaction at over 9 m/s. At higher velocities, the performances and the power coefficients decrease, observations demonstrated also experimentally within the study. The optimal wind velocity for the Savonius-Darrieus vertical turbine is 6 m/s.https://www.e3s-conferences.org/articles/e3sconf/pdf/2025/08/e3sconf_eenviro2024_01002.pdf |
| spellingShingle | Budea Sanda Simionescu Ștefan-Mugur Copăceanu Valentin Numerical and experimental investigations on a hybrid vertical axis wind turbine E3S Web of Conferences |
| title | Numerical and experimental investigations on a hybrid vertical axis wind turbine |
| title_full | Numerical and experimental investigations on a hybrid vertical axis wind turbine |
| title_fullStr | Numerical and experimental investigations on a hybrid vertical axis wind turbine |
| title_full_unstemmed | Numerical and experimental investigations on a hybrid vertical axis wind turbine |
| title_short | Numerical and experimental investigations on a hybrid vertical axis wind turbine |
| title_sort | numerical and experimental investigations on a hybrid vertical axis wind turbine |
| url | https://www.e3s-conferences.org/articles/e3sconf/pdf/2025/08/e3sconf_eenviro2024_01002.pdf |
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