A novel optimal design approach for bladeless wind turbines considering mechanical properties of composite materials used
Abstract Bladeless wind turbines face operational limitations due to the lock-in phenomenon. This study introduces two novel mechanisms for designing bladeless wind turbines to address this issue, enabling operation across a broad wind speed range from 2 to 10 m/s while ensuring that lock-in conditi...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2025-01-01
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| Series: | Scientific Reports |
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| Online Access: | https://doi.org/10.1038/s41598-024-82385-9 |
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| author | Zeinab Mohamed Moataz Soliman Mohamed Feteha E. Saber |
| author_facet | Zeinab Mohamed Moataz Soliman Mohamed Feteha E. Saber |
| author_sort | Zeinab Mohamed |
| collection | DOAJ |
| description | Abstract Bladeless wind turbines face operational limitations due to the lock-in phenomenon. This study introduces two novel mechanisms for designing bladeless wind turbines to address this issue, enabling operation across a broad wind speed range from 2 to 10 m/s while ensuring that lock-in conditions are satisfied at any wind speed within this range. The study aims to maintain optimal performance without any decline that is observed in conventional bladeless wind turbines by controlling the turbine’s natural frequency through implementing these mechanisms, either by adjusting the effective length of the stand or by incorporating an additional mass in the hollow mast, or both. A mathematical model including dynamic analysis is constructed to adjust natural frequency to match the shedding frequency at the specified wind speed. Validation of our model shows high accuracy. Numerical results demonstrate that applying these mechanisms ensures the turbine is optimally designed across varying parameters. Findings reveal that for lower flexural modulus values, the first mechanism alone can achieve a 99.2% increase in mechanical efficiency at 7 m/s. For higher flexural modulus values, incorporating the second mechanism is essential to reduce the turbine’s overall size. This integrated approach improves efficiency with a 55.7% increase. |
| format | Article |
| id | doaj-art-698635da8a45458ab6498fcb1d5bb843 |
| institution | Kabale University |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj-art-698635da8a45458ab6498fcb1d5bb8432025-01-12T12:17:28ZengNature PortfolioScientific Reports2045-23222025-01-0115112610.1038/s41598-024-82385-9A novel optimal design approach for bladeless wind turbines considering mechanical properties of composite materials usedZeinab Mohamed0Moataz Soliman1Mohamed Feteha2E. Saber3Technologies and Materials of Renewable Energy Program, Department of Materials Science, Institute of Graduate Studies and Research, Alexandria UniversityDepartment of Materials Science, Institute of Graduate Studies and Research, Alexandria UniversityDepartment of Materials Science, Institute of Graduate Studies and Research, Alexandria UniversityCollege of Engineering, Arab Academy for Science, Technology and Maritime TransportAbstract Bladeless wind turbines face operational limitations due to the lock-in phenomenon. This study introduces two novel mechanisms for designing bladeless wind turbines to address this issue, enabling operation across a broad wind speed range from 2 to 10 m/s while ensuring that lock-in conditions are satisfied at any wind speed within this range. The study aims to maintain optimal performance without any decline that is observed in conventional bladeless wind turbines by controlling the turbine’s natural frequency through implementing these mechanisms, either by adjusting the effective length of the stand or by incorporating an additional mass in the hollow mast, or both. A mathematical model including dynamic analysis is constructed to adjust natural frequency to match the shedding frequency at the specified wind speed. Validation of our model shows high accuracy. Numerical results demonstrate that applying these mechanisms ensures the turbine is optimally designed across varying parameters. Findings reveal that for lower flexural modulus values, the first mechanism alone can achieve a 99.2% increase in mechanical efficiency at 7 m/s. For higher flexural modulus values, incorporating the second mechanism is essential to reduce the turbine’s overall size. This integrated approach improves efficiency with a 55.7% increase.https://doi.org/10.1038/s41598-024-82385-9Wind energyBladeless wind turbineEnergy harvestingVortex-induced vibration |
| spellingShingle | Zeinab Mohamed Moataz Soliman Mohamed Feteha E. Saber A novel optimal design approach for bladeless wind turbines considering mechanical properties of composite materials used Scientific Reports Wind energy Bladeless wind turbine Energy harvesting Vortex-induced vibration |
| title | A novel optimal design approach for bladeless wind turbines considering mechanical properties of composite materials used |
| title_full | A novel optimal design approach for bladeless wind turbines considering mechanical properties of composite materials used |
| title_fullStr | A novel optimal design approach for bladeless wind turbines considering mechanical properties of composite materials used |
| title_full_unstemmed | A novel optimal design approach for bladeless wind turbines considering mechanical properties of composite materials used |
| title_short | A novel optimal design approach for bladeless wind turbines considering mechanical properties of composite materials used |
| title_sort | novel optimal design approach for bladeless wind turbines considering mechanical properties of composite materials used |
| topic | Wind energy Bladeless wind turbine Energy harvesting Vortex-induced vibration |
| url | https://doi.org/10.1038/s41598-024-82385-9 |
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