Main Article Content
Abstract
Wind energy potential is available in several regions in Indonesia with wind ranges reaching 5 m/s. Wind turbine research continues to develop to produce optimal power. The aim of this research is to determine the performance of wind turbines equipped with diffusers or lens that put triangle fin vortex generator on lens’s surface. The turbine blade used Clark-Y that has a winglet angle of 45-degrees. There are three variations of lens wind turbine that were tested: without vortex generator, z/h=4.5, z/h=2.5, z/h=0.5. The research was carried out experimentally with fifth wind velocity 3 m/s, 3.5 m/s, 4 m/s, 4.5 m/s, and 5 m/s. The results analyzed to determine turbine performance are turbine rotation, the power produced due to wind direction. Based on the results of the experiments that have been carried out, the results were obtained a straight comparison between TSR and wind turbine rotation (rpm), and straight comparison between Cp and TRS. The Cp is largest in a lens wind turbine with a vortex generator z/h=0.5, which is 0.59 and has the highest power output of 473 watt.
Keywords
Article Details

This work is licensed under a Creative Commons Attribution 4.0 International License.
Copyright (c): Lohdy Diana, joke Pratilastiarso, Arrad Ghani Safitra; Nu Rhahida Arini; Firman Yunan Saputra, Ar Rayyan Ikhsan Syahputra, Firdaus Fhudoli Putra (2025)References
- Z. Zhang et al., “Comparative analysis of bent and basic winglets on performance improvement of horizontal axis wind turbines,” Energy, vol. 281, p. 128252, 2023, doi: https://doi.org/10.1016/j.energy.2023.128252.
- M. S. Sy, B. E. Abuan, and L. A. Danao, “Aerodynamic Investigation of a Horizontal Axis Wind Turbine with Split Winglet Using Computational Fluid Dynamics,” Energies, vol. 13, no. 18. 2020. doi: 10.3390/en13184983.
- M. G. Mourad, I. Shahin, S. S. Ayad, O. E. Abdellatif, and T. A. Mekhail, “Effect of winglet geometry on horizontal axis wind turbine performance,” Eng. reports, vol. 2, no. 1, pp. 1–19, 2020, doi: https://doi.org/10.1002/eng2.12101.
- S.-K. Ung, W.-T. Chong, S. Mat, J.-H. Ng, Y.-H. Kok, and K.-H. Wong, “Investigation into the Aerodynamic Performance of a Vertical Axis Wind Turbine with Endplate Design,” Energies, vol. 15, no. 19. 2022. doi: 10.3390/en15196925.
- Z. Zhang et al., “A novel wake control strategy for a twin-rotor floating wind turbine: Mitigating wake effect,” Energy, vol. 287, p. 129619, 2024, doi: https://doi.org/10.1016/j.energy.2023.129619.
- R. Yazdanpanah, S. A. Mortazavizadeh, Y. Teng, O. Anaya-Lara, and D. Campos-Gaona, “An Integrated Rotary Transformer and 3-Phase Dual-Active-Bridge Converter for High Power Transfer in Novel X-Rotor Wind Turbines,” in 2023 IEEE International Magnetic Conference (INTERMAG), 2023, pp. 1–5. doi: 10.1109/INTERMAG50591.2023.10265091.
- K. Elsafty and A. Elbaz, “Investigating the Performance of Multi Element Wind Lens.” Jun. 24, 2024. doi: 10.1115/GT2024-128215.
- A. Alkhabbaz, H.-S. Yang, W. Tongphong, and Y.-H. Lee, “Impact of compact diffuser shroud on wind turbine aerodynamic performance: CFD and experimental investigations,” Int. J. Mech. Sci., vol. 216, p. 106978, 2022, doi: https://doi.org/10.1016/j.ijmecsci.2021.106978.
- J. F. Hu et al., “Experimental and numerical study of the novel diffuser with a passive adaptive flexible flange for improving the shroud augmented wind turbine,” IET Renew. Power Gener., vol. 14, no. 10, pp. 1822–1829, 2020, doi: https://doi.org/10.1049/iet-rpg.2019.1428.
- M. R. B. Mostafa Radwan Behery, D. H. D. Djamal Hissein Didane, and B. M. Bukhari Manshoor, “Optimization of Flanged Diffuser for Small-Scale Wind Power Applications,” CFD Lett., vol. 16, no. 7, pp. 54–70, 2024, doi: https://doi.org/10.37934/cfdl.16.7.5470.
- N. Maftouni and M. Taghaddosi, “A CFD study of a flanged shrouded wind turbine: Effects of different flange surface types on output power,” Sci. Iran., vol. 29, no. 1, pp. 101–108, 2022, doi: 10.24200/sci.2021.57513.5278.
- D. De Tavernier, C. Ferreira, A. Viré, B. LeBlanc, and S. Bernardy, “Controlling dynamic stall using vortex generators on a wind turbine airfoil,” Renew. Energy, vol. 172, pp. 1194–1211, 2021, doi: https://doi.org/10.1016/j.renene.2021.03.019.
- P. Kundu, A. Sarkar, and V. Nagarajan, “Improvement of performance of S1210 hydrofoil with vortex generators and modified trailing edge,” Renew. Energy, vol. 142, pp. 643–657, 2019, doi: https://doi.org/10.1016/j.renene.2019.04.148.
- M. F. Rozaim, F. M. Zawawi, N. S. M. Nor, H. M. Kamar, and N. Kamsah, “Experimental study on performance of low speed wind turbine for application in Malaysia,” J. Adv. Res. Fluid Mech. Therm. Sci., vol. 26, no. 1, pp. 20–28, 2016.
- A. Dinh Le, P. Nguyen Thi Thu, V. Ha Doan, H. The Tran, M. Duc Banh, and V.-T. Truong, “Enhancement of aerodynamic performance of Savonius wind turbine with airfoil-shaped blade for the urban application,” Energy Convers. Manag., vol. 310, p. 118469, 2024, doi: https://doi.org/10.1016/j.enconman.2024.118469.