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Numerical Simulation of a Dual-Chamber Oscillating Water Column Wave Energy Converter

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  • Dezhi Ning

    (State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China
    Offshore Renewable Energy Research Center, Dalian University of Technology, Dalian 116024, China
    State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai University, Nanjing 210098, China)

  • Rongquan Wang

    (State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China
    Offshore Renewable Energy Research Center, Dalian University of Technology, Dalian 116024, China)

  • Chongwei Zhang

    (State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China
    Offshore Renewable Energy Research Center, Dalian University of Technology, Dalian 116024, China
    State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai University, Nanjing 210098, China)

Abstract

The performance of a dual-chamber Oscillating Water Column (OWC) Wave Energy Converter (WEC) is considered in the present study. The device has two sub-chambers with a shared orifice. A two-dimensional (2D) fully nonlinear numerical wave flume based on the potential-flow theory and the time-domain higher-order boundary element method (HOBEM) is applied for the simulation. The incident waves are generated by using the immerged sources and the air-fluid coupling influence is considered with a simplified pneumatic model. In the present study, the variation of the surface elevation and the water column volume in the two sub-chambers are investigated. The effects of the chamber geometry (i.e., the draft and breadth of two chambers) on the surface elevation and the air pressure in the chamber are investigated, respectively. It is demonstrated that the surface elevations in the two sub-chambers are strongly dependent on the wave conditions. The larger the wavelength, the more synchronous motion of the two water columns in the two sub-chambers, thus, the lager the variation of the water column volume.

Suggested Citation

  • Dezhi Ning & Rongquan Wang & Chongwei Zhang, 2017. "Numerical Simulation of a Dual-Chamber Oscillating Water Column Wave Energy Converter," Sustainability, MDPI, vol. 9(9), pages 1-12, September.
    • Handle: RePEc:gam:jsusta:v:9:y:2017:i:9:p:1599-:d:111226
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    References listed on IDEAS

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    Cited by:

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    3. Mobin Masoomi & Mahdi Yousefifard & Amir Mosavi, 2021. "Efficiency Assessment of an Amended Oscillating Water Column Using OpenFOAM," Sustainability, MDPI, vol. 13(10), pages 1-23, May.
    4. Ning, De-zhi & Wang, Rong-quan & Chen, Li-fen & Sun, Ke, 2019. "Experimental investigation of a land-based dual-chamber OWC wave energy converter," Renewable and Sustainable Energy Reviews, Elsevier, vol. 105(C), pages 48-60.
    5. Elhanafi, Ahmed & Macfarlane, Gregor & Ning, Dezhi, 2018. "Hydrodynamic performance of single–chamber and dual–chamber offshore–stationary Oscillating Water Column devices using CFD," Applied Energy, Elsevier, vol. 228(C), pages 82-96.
    6. Chen Wang & Zhengzhi Deng & Pinjie Wang & Yu Yao, 2019. "Wave Power Extraction from a Dual Oscillating-Water- Column System Composed of Heave-Only and Onshore Units," Energies, MDPI, vol. 12(9), pages 1-22, May.
    7. Rezanejad, K. & Gadelho, J.F.M. & Guedes Soares, C., 2019. "Hydrodynamic analysis of an oscillating water column wave energy converter in the stepped bottom condition using CFD," Renewable Energy, Elsevier, vol. 135(C), pages 1241-1259.
    8. 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).
    9. 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).
    10. Didier, Eric & Teixeira, Paulo R.F., 2024. "Numerical analysis of 3D hydrodynamics and performance of an array of oscillating water column wave energy converters integrated into a vertical breakwater," Renewable Energy, Elsevier, vol. 225(C).
    11. Ching-Piao Tsai & Chun-Han Ko & Ying-Chi Chen, 2018. "Investigation on Performance of a Modified Breakwater-Integrated OWC Wave Energy Converter," Sustainability, MDPI, vol. 10(3), pages 1-20, February.
    12. Li Li & Jiadong Zhu & Guanqiong Ye & Xuehao Feng, 2018. "Development of Green Ports with the Consideration of Coastal Wave Energy," Sustainability, MDPI, vol. 10(11), pages 1-17, November.
    13. Zhou, Yu & Chen, Lifen & Zhao, Jie & Liu, Xiangjian & Ye, Xiaorong & Wang, Fei & Adcock, Thomas A.A. & Ning, Dezhi, 2023. "Power and dynamic performance of a floating multi-functional platform: An experimental study," Energy, Elsevier, vol. 285(C).

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