Acoustic Investigation of Hybrid Wind Turbine Consisting of Darrieus Blades and Savonius Conventional Type Blades

Document Type : Original Article

Authors

Faculty of Mechanical Engineering, Urmia University of Technology, Urmia, Iran

Abstract

Sound produced by vertical axis wind turbines can reduce their popularity for use in urban and residential areas. In order to reduce the produced sound level the acoustic behavior of hybrid rotor is studied in this research with the help of Computational Fluid Dynamics (CFD). In the investigated rotor structure, conventional-type blades were used as the inner rotor, which was connected to the outer rotor at a zero-degree angle. To ensure the modeling, the validation of the results and the measuring of effect of the time step on the output data were undertaken. The purpose of this research was to investigate the effect of a tip speed ratio and free wind speed on the level of sound produced. The results showed that the sound level produced had a direct relationship with a tip speed ratio and the free wind speed in such a way that the lowest sound pressure level in a tip speed ratio of 1.5 and the free wind speed of 5 m/s was reported by the R4 receiver.  Its value was equal to 7.64 dB. Also, by moving away from the rotor, the produced sound level decreasesd.

Keywords

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References

[1] Kelley, ND., McKenna, H., Hemphill, R., Etter, C., Garrelts, R., Linn , N. "Acoustic noise associated with the MOD-1 wind turbine: its source, impact, and control. Solar Energy Research", Inst.(SERI), Golden, CO (United States), 1985.
[2] Robinson, DW., Dadson, RS., ''A re-determination of the equal-loudness relations for pure tones'', British Journal of Applied Physics, Vol. 7, No. 5, pp. 144-166, 1956. https://doi.org/10.1088/0508-3443/7/5/302
[3] Mohamed, M., ''Aero-acoustics noise evaluation of H-rotor Darrieus wind turbines'', Energy, Vol. 65, pp. 596-604, 2014. https://doi.org/ 10.1016/j.energy.2013.11.031.
[4] Ghasemian, M., Nejat, A., ''Aero-acoustics prediction of a vertical axis wind turbine using Large Eddy Simulation and acoustic analogy'', Energy, Vol. 88, pp. 711-7, 2015. https://doi.org/10.1016/j.energy.2015.05.098.
[5] Mohamed, M., "Criticism study of J-Shaped Darrieus wind turbine: Performance evaluation and noise generation assessment", Energy, Vol. 177, pp. 367-85, 2019. https://doi.org/10.1016/j.energy.2019.04.102.
[6] Ottermo, F., Möllerström, E., Nordborg, A., Hylander, J., Bernhoff, H., "Location of aerodynamic noise sources from a 200 kW vertical-axis wind turbine", Journal of Sound and Vibration, Vol. 400, pp. 154-66, 2017. https://doi.org/10.1016/j.jsv.2017.03.033.
[7] Ghazalla, R., Mohamed, M., Hafiz, A., ''Synergistic analysis of a Darrieus wind turbine using computational fluid dynamics", Energy, Vol. 189, pp. 116214, 2019. https://doi.org/10.1016/j.energy.2019.116214.
[8] Mohamed, M., "Reduction of the generated aero-acoustics noise of a vertical axis wind turbine using CFD (Computational Fluid Dynamics) techniques", Energy, Vol. 96, pp. 531-44, 2016. https://doi.org/10.1016/j.energy.2015.12.100.
[9] Liu, Q., Miao, W., Bashir, M., Xu, Z., Yu, N., Luo, S., et al., "Aerodynamic and aeroacoustic performance assessment of a vertical axis wind turbine by synergistic effect of blowing and suction", Energy Conversion and Management, Vol. 271, pp. 116-289, 2022. https://doi.org/10.1016/j.enconman.2022. 116289.
[10] Su, J., Lei, H., Zhou, D., Han, Z., Bao, Y., Zhu, H., "Aerodynamic noise assessment for a vertical axis wind turbine using Improved Delayed Detached Eddy Simulation", Renewable energy, Vol. 141, pp. 559-69, 2019. https://doi.org/10.1016/j.renene.2019.04.038.
[11] Dessoky, A., Bangga, G., Lutz, T., Krämer, E., "Aerodynamic and aeroacoustic performance assessment of H-rotor darrieus VAWT equipped with wind-lens technology", Energy, Vol. 175, pp. 76-97, 2019. https://doi.org/10.1016/j.energy.2019.03.066.
[12] Thambidurai Arasi, TR., Shubham, S., Ianakiev, A., "Effect of blade shape on aerodynamic and aeroacoustic characteristics of vertical axis wind turbines using mid-fidelity and high-fidelity methods", Conference InAIAA SCITECH 2024, Forum 2024. https://doi.org/10.2514/6.2024-1488.
[13] Shubham, S., Avallone, F., Brandetti, L., Wright, N., Ianakiev, A., "Effect of struts and central tower on aerodynamics and aeroacoustics of vertical axis wind turbines using mid-fidelity and high-fidelity methods", InAIAA SCITECH 2024, Forum 2024. https://doi.org/10.2514/6.2024-1485.
[14] Ghasemian, M., Nejat, A., "Aerodynamic noise prediction of a horizontal axis wind turbine using improved delayed detached eddy simulation and acoustic analogy", Energy Conversion and Management, Vol. 15, No. 99, pp. 210-20, 2015. https://doi.org/10.1016/j.enconman .2015.04.011.
[15] Shubham, S., Wright, N., Avallone, F., Ianakiev, A.,"Aerodynamic and aeroacoustic investigation of vertical axis wind turbines with different number of blades using mid-fidelity and high-fidelity methods", InAIAA AVIATION 2023, Forum 2023. https://doi.org/10.2514/6.2023-3642.
[16] Asadi, M., Hassanzadeh, R., "Effects of internal rotor parameters on the performance of a two bladed Darrieus-two bladed Savonius hybrid wind turbine", Energy Conversion and Management, Vol. 238, pp. 114-109, 2021. https://doi.org/10.1016/j.enconman.2021.114109.
[17] Asadi, M., Hassanzadeh, R., ''Assessment of Bach-type internal rotor on the performance of a hybrid wind turbine: effects of attachment angle, tip speed ratio, and free-wind speed", International Journal of Green Energy, Vol. 21, No. 4, pp. 842-60, 2024. https://doi.org/10.1080/15435075.2023.2220372.
[18] Asadi, M., Hassanzadeh, R., "On the application of semicircular and Bach-type blades in the internal Savonius rotor of a hybrid wind turbine system", Journal of Wind Engineering and Industrial Aerodynamics, Vol. 221, pp. 104-903, 2022. https://doi.org/10.1016/j.jweia.2022.104903
[19] Hassanzadeh, R., Mohammadnejad, M., "Effects of inward and outward overlap ratios on the two-blade Savonius type of vertical axis wind turbine performance", International Journal of Green Energy, Vol. 16, No. 15, pp. 1485-96, 2019. https://doi.org/10.1080/15435075.2019. 1671420.
[20] Saini, G., Saini, RP., "A numerical analysis to study the effect of radius ratio and attachment angle on hybrid hydrokinetic turbine performance", Energy for Sustainable Development, Vol. 47, pp. 94-106, 2018. https://doi.org/ 10.1016 /j.esd.2018.09.005.
[21] Pearson, C., "Vertical axis wind turbine acoustics": University of Cambridge, 2014.
[22] Nitzkorski, ZL., "A novel porous Ffowcs-Williams and Hawkings acoustic methodology for complex geometries": University of Minnesota, 2015.
[23] Asadi, M., "Aero-acoustic analysis of a hybrid wind turbine composed of Darrieus and Savonius blades": Urmia University of Technology, 2021. https://ganj.irandoc.ac.ir/#/articles/08e125c561e9ac12be8296996cf917c1
[24] Rezaeiha, A., Kalkman, I., Blocken, B., "Effect of pitch angle on power performance and aerodynamics of a vertical axis wind turbine", Applied energy, Vol. 197, pp. 132-50, 2017. https://doi.org/10.1016/j.apenergy.2017.03.128.
Energy Engineering and Management
Volume 14, Issue 1
July 2024
Pages 108-121

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