IDEAS home Printed from https://ideas.repec.org/a/eee/energy/v247y2022ics0360544222003358.html
   My bibliography  Save this article

Experimental investigation on the effects of deflector angles on the power performance of a Savonius turbine for hydrokinetic applications in small rivers

Author

Listed:
  • Salleh, Mohd Badrul
  • Kamaruddin, Noorfazreena M.
  • Mohamed-Kassim, Zulfaa

Abstract

A vertical-axis drag-driven Savonius turbine has various advantages and has demonstrated strong potential in hydrokinetic applications for sustainable rural electrification. However, its applicability is limited by the low coefficient of power inherent in the system. To solve this issue, the present study aims to evaluate the power performance improvement of a conventional Savonius turbine using two deflectors on the advancing and returning blades. Wind tunnel experiments conducted at Reynolds number, Re = 148,000 corresponding to 7.0 m/s (equivalent to 0.4 m/s water flow speed for hydrokinetic applications) revealed that, among the 30 deflector angle configurations tested, the advancing and returning blade deflectors were optimally configured at 30° and 90°, respectively. This combination of deflector angles resulted in the highest maximum coefficient of power at CPmax= 0.21, a 61.53% improvement relative to the case without the deflectors. This optimal configuration deflected the flow to the advancing blade while blocking the flow from impinging on the returning blade, effectively increasing the net positive torque and consequently the power performance. Moreover, it was found that variations in the returning blade deflector angle, δR had more significant effects on the turbine power than variations in the advancing blade deflector angle, δA. Conclusively, careful optimization of the deflector angle configurations was able to increase turbine power performance, suitable for practical implementation in small rivers with low flow rates for optimal power production.

Suggested Citation

  • Salleh, Mohd Badrul & Kamaruddin, Noorfazreena M. & Mohamed-Kassim, Zulfaa, 2022. "Experimental investigation on the effects of deflector angles on the power performance of a Savonius turbine for hydrokinetic applications in small rivers," Energy, Elsevier, vol. 247(C).
    • Handle: RePEc:eee:energy:v:247:y:2022:i:c:s0360544222003358
    DOI: 10.1016/j.energy.2022.123432
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0360544222003358
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.energy.2022.123432?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    References listed on IDEAS

    as
    1. Mohamed, M.H. & Janiga, G. & Pap, E. & Thévenin, D., 2010. "Optimization of Savonius turbines using an obstacle shielding the returning blade," Renewable Energy, Elsevier, vol. 35(11), pages 2618-2626.
    2. Guo, Wencheng & Peng, Zhiyuan, 2019. "Hydropower system operation stability considering the coupling effect of water potential energy in surge tank and power grid," Renewable Energy, Elsevier, vol. 134(C), pages 846-861.
    3. Baoshou Zhang & Baowei Song & Zhaoyong Mao & Wenlong Tian & Boyang Li & Bo Li, 2017. "A Novel Parametric Modeling Method and Optimal Design for Savonius Wind Turbines," Energies, MDPI, vol. 10(3), pages 1-20, March.
    4. Vermaak, Herman Jacobus & Kusakana, Kanzumba & Koko, Sandile Philip, 2014. "Status of micro-hydrokinetic river technology in rural applications: A review of literature," Renewable and Sustainable Energy Reviews, Elsevier, vol. 29(C), pages 625-633.
    5. Yah, Nor F. & Oumer, Ahmed N. & Idris, Mat S., 2017. "Small scale hydro-power as a source of renewable energy in Malaysia: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 72(C), pages 228-239.
    6. Altan, Burçin Deda & Atılgan, Mehmet, 2010. "The use of a curtain design to increase the performance level of a Savonius wind rotors," Renewable Energy, Elsevier, vol. 35(4), pages 821-829.
    7. Peng, Zhiyuan & Guo, Wencheng, 2019. "Saturation characteristics for stability of hydro-turbine governing system with surge tank," Renewable Energy, Elsevier, vol. 131(C), pages 318-332.
    8. Kamoji, M.A. & Kedare, S.B. & Prabhu, S.V., 2009. "Experimental investigations on single stage modified Savonius rotor," Applied Energy, Elsevier, vol. 86(7-8), pages 1064-1073, July.
    9. Behrouzi, Fatemeh & Nakisa, Mehdi & Maimun, Adi & Ahmed, Yasser M., 2016. "Global renewable energy and its potential in Malaysia: A review of Hydrokinetic turbine technology," Renewable and Sustainable Energy Reviews, Elsevier, vol. 62(C), pages 1270-1281.
    10. Roy, Sukanta & Saha, Ujjwal K., 2013. "Review on the numerical investigations into the design and development of Savonius wind rotors," Renewable and Sustainable Energy Reviews, Elsevier, vol. 24(C), pages 73-83.
    11. Jeon, Keum Soo & Jeong, Jun Ik & Pan, Jae-Kyung & Ryu, Ki-Wahn, 2015. "Effects of end plates with various shapes and sizes on helical Savonius wind turbines," Renewable Energy, Elsevier, vol. 79(C), pages 167-176.
    12. Kumar, Anuj & Saini, R.P., 2016. "Performance parameters of Savonius type hydrokinetic turbine – A Review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 64(C), pages 289-310.
    13. Kerikous, Emeel & Thévenin, Dominique, 2019. "Optimal shape of thick blades for a hydraulic Savonius turbine," Renewable Energy, Elsevier, vol. 134(C), pages 629-638.
    14. Kang, Can & Zhao, Hexiang & Zhang, Yongchao & Ding, Kejin, 2021. "Effects of upstream deflector on flow characteristics and startup performance of a drag-type hydrokinetic rotor," Renewable Energy, Elsevier, vol. 172(C), pages 290-303.
    15. Golecha, Kailash & Eldho, T.I. & Prabhu, S.V., 2011. "Influence of the deflector plate on the performance of modified Savonius water turbine," Applied Energy, Elsevier, vol. 88(9), pages 3207-3217.
    16. Zhang, Yongchao & Kang, Can & Ji, Yanguang & Li, Qing, 2019. "Experimental and numerical investigation of flow patterns and performance of a modified Savonius hydrokinetic rotor," Renewable Energy, Elsevier, vol. 141(C), pages 1067-1079.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Khani, Mohammad Sadegh & Shahsavani, Younes & Mehraein, Mojtaba & Soleimani Rad, Mohammad Hossein & Nikbakhsh, Amir Abbas, 2024. "Evaluation of the performance of the Savonius hydrokinetic turbines in the straight and curved channels using advanced machine learning methods," Energy, Elsevier, vol. 290(C).
    2. Kerikous, Emeel & Thévenin, Dominique, 2019. "Optimal shape and position of a thick deflector plate in front of a hydraulic Savonius turbine," Energy, Elsevier, vol. 189(C).
    3. Gao, Jinjin & Liu, Han & Lee, Jiyong & Zheng, Yuan & Guala, Michele & Shen, Lian, 2022. "Large-eddy simulation and Co-Design strategy for a drag-type vertical axis hydrokinetic turbine in open channel flows," Renewable Energy, Elsevier, vol. 181(C), pages 1305-1316.
    4. Elbatran, A.H. & Ahmed, Yasser M. & Shehata, Ahmed S., 2017. "Performance study of ducted nozzle Savonius water turbine, comparison with conventional Savonius turbine," Energy, Elsevier, vol. 134(C), pages 566-584.
    5. Krzysztof Sobczak & Damian Obidowski & Piotr Reorowicz & Emil Marchewka, 2020. "Numerical Investigations of the Savonius Turbine with Deformable Blades," Energies, MDPI, vol. 13(14), pages 1-20, July.
    6. C M, Shashikumar & Madav, Vasudeva, 2021. "Numerical and experimental investigation of modified V-shaped turbine blades for hydrokinetic energy generation," Renewable Energy, Elsevier, vol. 177(C), pages 1170-1197.
    7. Scheaua Fanel Dorel & Goanta Adrian Mihai & Dragan Nicusor, 2021. "Review of Specific Performance Parameters of Vertical Wind Turbine Rotors Based on the SAVONIUS Type," Energies, MDPI, vol. 14(7), pages 1-23, April.
    8. Montelpare, Sergio & D'Alessandro, Valerio & Zoppi, Andrea & Ricci, Renato, 2018. "Experimental study on a modified Savonius wind rotor for street lighting systems. Analysis of external appendages and elements," Energy, Elsevier, vol. 144(C), pages 146-158.
    9. Tartuferi, Mariano & D'Alessandro, Valerio & Montelpare, Sergio & Ricci, Renato, 2015. "Enhancement of Savonius wind rotor aerodynamic performance: a computational study of new blade shapes and curtain systems," Energy, Elsevier, vol. 79(C), pages 371-384.
    10. Khani, Mohammad Sadegh & Shahsavani, Younes & Mehraein, Mojtaba & Kisi, Ozgur, 2023. "Performance evaluation of the savonius hydrokinetic turbine using soft computing techniques," Renewable Energy, Elsevier, vol. 215(C).
    11. Noman, Abdullah Al & Tasneem, Zinat & Sahed, Md. Fahad & Muyeen, S.M. & Das, Sajal K. & Alam, Firoz, 2022. "Towards next generation Savonius wind turbine: Artificial intelligence in blade design trends and framework," Renewable and Sustainable Energy Reviews, Elsevier, vol. 168(C).
    12. Guo, Fen & Song, Baowei & Mao, Zhaoyong & Tian, Wenlong, 2020. "Experimental and numerical validation of the influence on Savonius turbine caused by rear deflector," Energy, Elsevier, vol. 196(C).
    13. Ricci, Renato & Romagnoli, Roberto & Montelpare, Sergio & Vitali, Daniele, 2016. "Experimental study on a Savonius wind rotor for street lighting systems," Applied Energy, Elsevier, vol. 161(C), pages 143-152.
    14. Zhang, Yongchao & Kang, Can & Ji, Yanguang & Li, Qing, 2019. "Experimental and numerical investigation of flow patterns and performance of a modified Savonius hydrokinetic rotor," Renewable Energy, Elsevier, vol. 141(C), pages 1067-1079.
    15. Hashem, Islam & Zhu, Baoshan, 2021. "Metamodeling-based parametric optimization of a bio-inspired Savonius-type hydrokinetic turbine," Renewable Energy, Elsevier, vol. 180(C), pages 560-576.
    16. Can Kang & Wisdom Opare & Chen Pan & Ziwen Zou, 2018. "Upstream Flow Control for the Savonius Rotor under Various Operation Conditions," Energies, MDPI, vol. 11(6), pages 1-20, June.
    17. Kumar, Anuj & Saini, R.P., 2017. "Performance analysis of a Savonius hydrokinetic turbine having twisted blades," Renewable Energy, Elsevier, vol. 108(C), pages 502-522.
    18. John, Bony & Thomas, Rony N. & Varghese, James, 2020. "Integration of hydrokinetic turbine-PV-battery standalone system for tropical climate condition," Renewable Energy, Elsevier, vol. 149(C), pages 361-373.
    19. Wu, Kuo-Tsai & Lo, Kuo-Hao & Kao, Ruey-Chy & Hwang, Sheng-Jye, 2023. "Design and performance analysis of a passive rotatable deflector diversion tail for tidal current power generation hydrokinetic turbines," Energy, Elsevier, vol. 283(C).
    20. Tahani, Mojtaba & Rabbani, Ali & Kasaeian, Alibakhsh & Mehrpooya, Mehdi & Mirhosseini, Mojtaba, 2017. "Design and numerical investigation of Savonius wind turbine with discharge flow directing capability," Energy, Elsevier, vol. 130(C), pages 327-338.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:eee:energy:v:247:y:2022:i:c:s0360544222003358. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Catherine Liu (email available below). General contact details of provider: http://www.journals.elsevier.com/energy .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.