Improvement of Savonius wind turbine performance with using wind collector

Document Type : Article

Authors

Faculty of Engineering, Department of Mechanical Engineering, Akdeniz University, Antalya, 07058, Turkey

Abstract

In this study, the improvement of the turbine performance of Savonius, one of the vertical axis wind turbines, was carried out numerically. The numerical approach used in the improvement studies was supported by experimental results and was confirmed. Within the scope of this improvement, a wind collector was placed in the turbine front zone to decrease the negative moment on the counter-rotating blade of the Savonius turbine. To obtain the highest turbine performance, all of the changes in the design parameters of this wind collector, such as the wind inlet width, wind outlet width, collector length, and collector height, were examined, and ideal design parameters of the collector were specified. The geometric parameters of the investigated wind collector were taken depending on the circular dimension of the Savonius turbine used. Unsteady simulations for different geometric parameters using the sliding mesh approach were performed in the CFD program. According to the numerical analysis results, the power-coefficient of the conventional turbine was increased to 0.23 levels by using the wind collector with the ideal geometric parameters. Thus, with the use of a wind collector, the power coefficient of a conventional Savonius wind turbine was improved by about 54%.

Keywords

Main Subjects

References

References:
1. Soltani, M.R., Birjandi, A.H., and Seddighi Moorani, M. "Effect of surface contamination on the performance of a section of a wind turbine blade", Scientia Iranica, B., 18(3), pp. 349-357 (2011). DOI: 10.1016/j.scient.2011.05.024.
2. Roga, S. and Kumar Dubey, S. "DMST approach for analysis of 2 and 3 bladed type Darrieus vertical axis wind turbine", EAI Endorsed Transactions on Energy Web., 8(33), pp. 1-33 (2020). DOI: 10.4108/eai.27-10- 2020.166771.
3. Maftouni, N. and Taghaddosi, M. "A CFD study of a  flanged shrouded wind turbine: Effects of different flange surface types on output power", Scientia Iranica, B., 29(1), pp. 101-108 (2022). DOI: 10.24200/SCI.2021.57513.5278.
4. Roga, S., Kisku, V., and Datta, S. "Performance of a vertical wind turbine with permanent magnet synchronous generator", Proceedings of the Institution of Civil Engineers-Energy, , 175(4), pp. 205-215 (2022). DOI: 10.1680/jener.21.00113.
5. Roga, S. "Wind energy investigation of straightbladed vertical axis wind turbine using computational analysis", EAI Endorsed Transactions on Energy Web., 8(33), pp. 1-9 (2020). DOI: 10.4108/eai.27- 10-2020.166774.
6. Alom, N. and Saha, U.K. "Performance evaluation of vent-augmented elliptical-bladed Savonius rotors by numerical simulation and wind tunnel experiments", Energy., 152, pp. 277-290 (2018). DOI: 10.1016/j.energy.2018.03.136.
7. Akwa, J., Junior, G., and Petry, A. "Discussion on the verification of the overlap ratio influence on performance coefficients of a Savonius wind rotor using computational  fluid dynamics", Renewable Energy, 38, pp. 141-149 (2012). DOI: 10.1016/j.renene.2011.07.013.
8. Deda Altan, B., Kovan, V., and Altan, G. "Numerical and experimental analysis of a 3D printed Savonius rotor with built-in extension plate", Wind and Structures, 27(1), pp. 1-9 (2018). DOI: 10.12989/was.2018.27.1.001.
9. Jeon, K.S., Jeong, J.I., Pan, J.K., et al. "Effects of end plates with various shapes and sizes on helical Savonius wind turbines", Renewable Energy, 79, pp. 167-176 (2015). DOI: 10.1016/j.renene.2014.11.035.
10. Al-Ghriybah, M., Fadhli Zulka i, M., Hissein Didane, D., et al. "The effect of spacing between inner blades on the performance of the Savonius wind turbine", Sustainable Energy Technologies and Assessments, 43, 100988 (2021). DOI: 10.1016/j.seta.2020.100988.
11. Goodarzi, M. and Keimanesh, R. "Numerical analysis on overall performance of Savonius turbines adjacent to a natural draft cooling tower", Energy Conversion and Management, 99, pp. 41-49 (2015). DOI: 10.1016/j.enconman.2015.04.027.
12. El-Askary, W.A., Nasef, M.H., Abdel-Hamid, A.A., et al. "Harvesting wind energy for improving performance of Savonius rotor", Journal of Wind Engineering and Industrial Aerodynamics, 139, pp. 8-15 (2015). DOI: 10.1016/j.jweia.2015.01.003.
13. Deda Altan, B. and Atilgan, M. "The use of a curtain design to increase the performance level of a Savonius wind rotors", Renewable Energy, 35, pp. 821-829 (2010). DOI: 10.1016/j.renene.2009.08.025.
14. Manganhar, A.L., Rajpar, A.H., Luhur, M.R., et al. "Performance analysis of a Savonius vertical axis wind turbine integrated with wind accelerating and guiding rotor house", Renewable Energy., 136, pp. 512-520 (2019). DOI: 10.1016/j.renene.2018.12.124.
15. Deda Altan, B. and Gungor A. "Examination of the Effect of Triangular Plate on the Performances of Reverse Rotating Dual Savonius Wind Turbines", Processes, 10(11), 2278 (2022). DOI: 10.3390/pr10112278.
16. Mahmoud, N.H., El-Haroun, A.A., Wahba, E., et al. "An experimental study on improvement of Savonius rotor performance", Alexandria Engineering Journal, 51(1), pp. 19-25 (2012). DOI: 10.1016/j.aej.2012.07.003.
17. Gad, H.A., AbdEl-hamid, A.A., El-Askary, W.A., et al. "A new design of Savonius wind turbine: numerical study", CFD Letters, 6(4), pp. 144-158 (2014). 
18. Saad, A.S., El-Sharkawy. I.I., Ookawara, S., et al. "Performance enhancement of twisted-bladed Savonius vertical axis wind turbines", Energy Conversion and Management, 209, 112673 (2020). DOI: 10.1016/j.enconman.2020.112673.
19. Layeghmand, K., Tabari, N.G., and Zarkesh, M. "Improving efficiency of Savonius wind turbine by means of an airfoil-shaped defector", Journal of the Brazilian Society of Mechanical Sciences and Engineering, 42(10), 528 (2020). DOI: 10.1007/s40430-020-02598-7.
20. Yahya, W., Ziming K., Juan W., et al. "Influence of tilt angle and the number of guide vane blades towards the Savonius rotor performance", Energy Reports, 7, pp. 3317-3327 (2021). DOI: 10.1016/j.egyr.2021.05.053.
21. Mohamed, M.H., Janiga, G., Pap, E., et al. "Optimization of Savonius turbines using an obstacle shielding the returning blade", Renewable Energy, 35, pp. 2618- 2626 (2010). DOI: 10.1016/j.renene.2010.04.007.
22. Tartuferia, M., D'Alessandro, V., Montelpare, S., et al. "Enhancement of Savonius wind rotor aerodynamic performance: a computational study of new blade shapes and curtain systems", Energy, 79, pp. 371-384 (2015). DOI: 10.1016/j.energy.2014.11.023.
23. Kalluvila, J.B.S. and Sreejith, B. "Numerical and experimental study on a modified Savonius rotor with guide blades", International Journal of Green Energy, 15(12), pp. 744-757 (2018). DOI: 10.1080/15435075.2018.1529574.
24. Nimvari, M.E., Fatahian, H., and Fatahian, E. "Performance improvement of a Savonius vertical axis wind turbine using a porous deflector", Energy Conversion and Management., 220, 113062 (2020). DOI: 10.1016/j.enconman.2020.113062.
25. Hesami, A., Nikseresht, A.H., and Mohamed, M.H. "Feasibility study of twin-rotor Savonius wind turbine incorporated with a wind-lens", Ocean Engineering, 247, 110654 (2022). DOI: 10.1016/j.oceaneng.2022.110654
26. Deda Altan, B. and Gungor. A. "Enhancing the performance of Savonius wind turbines with wind router", Iranian Journal of Science and Technology, Transactions of Mechanical Engineering, 47(3), pp. 989-999 (2023). DOI: 10.1007/s40997-022-00580-3.
27. Tian, W., Bian, J., Yang, G., et al. "Influence of a passive upstream deflector on the performance of the Savonius wind turbine", Energy Reports, 8, pp. 7488- 7499 (2022). DOI: 10.1016/j.egyr.2022.05.244.
28. Deda Altan, B. and Gungor. A. "Investigation of the turbine performances in the case of dual usage of Savonius wind turbines", Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical, 237(6), pp. 2192-2201 (2023). DOI: 10.1177/09544089221140217.
29. Aboujaoude, H., Bogard, F., Beaumont, F., et al. "Aerodynamic performance enhancement of an axisymmetric deflector applied to Savonius wind turbine using novel transient 3D CFD simulation techniques", Energies,16, 909, (2023). DOI: 10.3390/en16020909.
30. Haddad, H.Z., Mohamed, M.H., Shabana, Y.M., et al. "Optimization of Savonius wind turbine with additional blades by surrogate model using artificial neural networks", Energy, 270, 126952 (2023). DOI: 10.1016/j.energy.2023.126952.
Scientia Iranica
Volume 31, Issue 13 - Serial Number 13
Transactions on Mechanical Engineering (B)
July and August 2024
Pages 1020-1029

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