IDEAS home Printed from https://ideas.repec.org/a/eee/energy/v285y2023ics0360544223028177.html
   My bibliography  Save this article

Enhancing efficiency and measuring sloshing in oscillating water column (OWC) systems: An experimental investigation of novel inlet geometry optimization and innovative measurement method

Author

Listed:
  • Kharkeshi, Behrad Alizadeh
  • Shafaghat, Rouzbeh
  • Rezanejad, Kourosh
  • Alamian, Rezvan

Abstract

Sea wave characteristics could be the most crucial sloshing occurrence caused by OWCs. In this paper, an OWC with different inlet geometries has been investigated experimentally to optimize the performance and reduce sloshing. Eight wave gauges (WG) are applied to measure water free surface to determine the sloshing. The results showed that the converter performance decrease when sloshing occurs. To reduce sloshing, four inlet openings were installed at the inlet of OWC, and to achieve optimal efficiency in sloshing conditions, the geometry optimization done by genetic algorithm; then, the converter's performance with optimum inlet was experimentally investigated, sloshing phenomenon was observed in 4 frequencies in converter without opening; However, after installing the optimal opening, sloshing occurred in only one frequency, and also in this case, sloshing was 42 % reduced. The data correlation results showed a positive correlation between the frequency and the Top Free Surface of water inside the OWC (shown by a line called TFS) angle. At the same time, there is a negative correlation between the frequency and the flow rate, pressure difference, and power generated. The comparison of the converter results with opening and without opening shows that the correlation between frequency and other variables is always lower in the case with opening. Also, geometry optimization improved the sloshing frequency's 42.89 % performance.

Suggested Citation

  • Kharkeshi, Behrad Alizadeh & Shafaghat, Rouzbeh & Rezanejad, Kourosh & Alamian, Rezvan, 2023. "Enhancing efficiency and measuring sloshing in oscillating water column (OWC) systems: An experimental investigation of novel inlet geometry optimization and innovative measurement method," Energy, Elsevier, vol. 285(C).
    • Handle: RePEc:eee:energy:v:285:y:2023:i:c:s0360544223028177
    DOI: 10.1016/j.energy.2023.129423
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0360544223028177
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.energy.2023.129423?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. Çelik, Anıl & Altunkaynak, Abdüsselam, 2019. "Experimental investigations on the performance of a fixed-oscillating water column type wave energy converter," Energy, Elsevier, vol. 188(C).
    2. Zanous, Sina Pasha & Shafaghat, Rouzbeh & Alamian, Rezvan & Shadloo, Mostafa Safdari & Khosravi, Mohammad, 2019. "Feasibility study of wave energy harvesting along the southern coast and islands of Iran," Renewable Energy, Elsevier, vol. 135(C), pages 502-514.
    3. Alamian, Rezvan & Shafaghat, Rouzbeh & Miri, S. Jalal & Yazdanshenas, Nima & Shakeri, Mostafa, 2014. "Evaluation of technologies for harvesting wave energy in Caspian Sea," Renewable and Sustainable Energy Reviews, Elsevier, vol. 32(C), pages 468-476.
    4. López, I. & Castro, A. & Iglesias, G., 2015. "Hydrodynamic performance of an oscillating water column wave energy converter by means of particle imaging velocimetry," Energy, Elsevier, vol. 83(C), pages 89-103.
    5. Zhu, Guixun & Samuel, John & Zheng, Siming & Hughes, Jason & Simmonds, David & Greaves, Deborah, 2023. "Numerical investigation on the hydrodynamic performance of a 2D U-shaped Oscillating Water Column wave energy converter," Energy, Elsevier, vol. 274(C).
    6. Luca Martinelli & Paolo Pezzutto & Piero Ruol, 2013. "Experimentally Based Model to Size the Geometry of a New OWC Device, with Reference to the Mediterranean Sea Wave Environment," Energies, MDPI, vol. 6(9), pages 1-25, September.
    7. Gadelho, J.F.M. & Rezanejad, K. & Xu, S. & Hinostroza, M. & Guedes Soares, C., 2021. "Experimental study on the motions of a dual chamber floating oscillating water column device," Renewable Energy, Elsevier, vol. 170(C), pages 1257-1274.
    8. Rezanejad, K. & Bhattacharjee, J. & Guedes Soares, C., 2015. "Analytical and numerical study of dual-chamber oscillating water columns on stepped bottom," Renewable Energy, Elsevier, vol. 75(C), pages 272-282.
    9. Fang He & Mingjia Li & Zhenhua Huang, 2016. "An Experimental Study of Pile-Supported OWC-Type Breakwaters: Energy Extraction and Vortex-Induced Energy Loss," Energies, MDPI, vol. 9(7), pages 1-15, July.
    10. Kharkeshi, Behrad Alizadeh & Shafaghat, Rouzbeh & Jahanian, Omid & Alamian, Rezvan & Rezanejad, Kourosh, 2022. "Experimental study of an oscillating water column converter to optimize nonlinear PTO using genetic algorithm," Energy, Elsevier, vol. 260(C).
    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. Kharkeshi, Behrad Alizadeh & Shafaghat, Rouzbeh & Jahanian, Omid & Alamian, Rezvan & Rezanejad, Kourosh, 2022. "Experimental study of an oscillating water column converter to optimize nonlinear PTO using genetic algorithm," Energy, Elsevier, vol. 260(C).
    2. Mia, Mohammad Rashed & Zhao, Ming & Wu, Helen & Munir, Adnan, 2022. "Numerical investigation of offshore oscillating water column devices," Renewable Energy, Elsevier, vol. 191(C), pages 380-393.
    3. Elhanafi, Ahmed & Macfarlane, Gregor & Fleming, Alan & Leong, Zhi, 2017. "Experimental and numerical investigations on the hydrodynamic performance of a floating–moored oscillating water column wave energy converter," Applied Energy, Elsevier, vol. 205(C), pages 369-390.
    4. Fang He & Mingjia Li & Zhenhua Huang, 2016. "An Experimental Study of Pile-Supported OWC-Type Breakwaters: Energy Extraction and Vortex-Induced Energy Loss," Energies, MDPI, vol. 9(7), pages 1-15, July.
    5. Mandev, Murat Barış & Altunkaynak, Abdüsselam & Çelik, Anıl, 2024. "Enhancing wave energy harvesting: Performance analysis of a dual chamber oscillating water column," Energy, Elsevier, vol. 290(C).
    6. Taherian Haghighi, Ali & Nikseresht, Amir H. & Hayati, Mohammad, 2021. "Numerical analysis of hydrodynamic performance of a dual-chamber Oscillating Water Column," Energy, Elsevier, vol. 221(C).
    7. Morteza Aien & Omid Mahdavi, 2020. "On the Way of Policy Making to Reduce the Reliance of Fossil Fuels: Case Study of Iran," Sustainability, MDPI, vol. 12(24), pages 1-28, December.
    8. Mia, Mohammad Rashed & Zhao, Ming & Wu, Helen & Munir, Adnan, 2021. "Numerical investigation of scaling effect in two-dimensional oscillating water column wave energy devices for harvesting wave energy," Renewable Energy, Elsevier, vol. 178(C), pages 1381-1397.
    9. Saheli, Mahdieh Arabzadeh & Lari, Kamran & Salehi, Gholamreza & Azad, Masoud Torabi, 2022. "Techno-economic assessment of a hybrid on grid PV-wave system: A case study in Caspian Sea," Renewable Energy, Elsevier, vol. 186(C), pages 596-608.
    10. Mandev, Murat Barış & Altunkaynak, Abdüsselam, 2022. "Advanced efficiency improvement of a sloping wall oscillating water column via a novel streamlined chamber design," Energy, Elsevier, vol. 259(C).
    11. He, Fang & Pan, Jiapeng & Lin, Yuan & Song, Mengxia & Zheng, Siming, 2024. "Laboratory modelling of nonlinear power take-off damping and its effects on an offshore stationary cylindrical OWC device," Energy, Elsevier, vol. 296(C).
    12. Huang, Shijie & Huang, Zhenhua, 2022. "Hydrodynamic performance of a row of closely-spaced bottom-sitting oscillating water columns," Renewable Energy, Elsevier, vol. 195(C), pages 344-356.
    13. Zhao, Xuanlie & Zhang, Lidong & Li, Mingwei & Johanning, Lars, 2021. "Experimental investigation on the hydrodynamic performance of a multi-chamber OWC-breakwater," Renewable and Sustainable Energy Reviews, Elsevier, vol. 150(C).
    14. Mandev, Murat Barıs & Altunkaynak, Abdüsselam, 2023. "Cylindrical frontwall entrance geometry optimization of an oscillating water column for utmost hydrodynamic performance," Energy, Elsevier, vol. 280(C).
    15. Ning, De-Zhi & Wang, Rong-Quan & Gou, Ying & Zhao, Ming & Teng, Bin, 2016. "Numerical and experimental investigation of wave dynamics on a land-fixed OWC device," Energy, Elsevier, vol. 115(P1), pages 326-337.
    16. Foteinis, Spyros, 2022. "Wave energy converters in low energy seas: Current state and opportunities," Renewable and Sustainable Energy Reviews, Elsevier, vol. 162(C).
    17. Yang, Can & Xu, Tingting & Wan, Chang & Liu, Hengxu & Su, Zuohang & Zhao, Lujun & Chen, Hailong & Johanning, Lars, 2023. "Numerical investigation of a dual cylindrical OWC hybrid system incorporated into a fixed caisson breakwater," Energy, Elsevier, vol. 263(PE).
    18. Falcão, António F.O. & Henriques, João C.C., 2016. "Oscillating-water-column wave energy converters and air turbines: A review," Renewable Energy, Elsevier, vol. 85(C), pages 1391-1424.
    19. Çelik, Anıl & Altunkaynak, Abdüsselam, 2021. "An in depth experimental investigation into effects of incident wave characteristics front wall opening and PTO damping on the water column displacement and air differential pressure in an OWC chamber," Energy, Elsevier, vol. 230(C).
    20. Chen, Jing & Wen, Hongjie & Wang, Yongxue & Ren, Bing, 2020. "Experimental investigation of an annular sector OWC device incorporated into a dual cylindrical caisson breakwater," Energy, Elsevier, vol. 211(C).

    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:285:y:2023:i:c:s0360544223028177. 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.