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Experimental investigation of an annular sector OWC device incorporated into a dual cylindrical caisson breakwater

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  • Chen, Jing
  • Wen, Hongjie
  • Wang, Yongxue
  • Ren, Bing

Abstract

The annular sector Oscillating Water Column (AS-OWC) device incorporated into a dual cylindrical caisson breakwater is proposed and the hydrodynamic performance is investigated experimentally. The free surface elevations inside and outside the water chamber are measured, as well as the air pressure both in the air chamber and the air duct. In order to overcome the influence induced by the uneven free surface in the chamber with a complicated geometry, the pressure method is proposed and applied to calculate the airflow rate through the air duct instead of the traditional water level method. The pneumatic damping characteristics and the hydrodynamic performance of the proposed AS-OWC integrated device are analyzed under different wave conditions. Experimental results indicate that the maximum hydrodynamic efficiency of the developed wave energy conversion device can be reached up to 81% within the present experimental range.

Suggested Citation

  • 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).
    • Handle: RePEc:eee:energy:v:211:y:2020:i:c:s0360544220317898
    DOI: 10.1016/j.energy.2020.118681
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    References listed on IDEAS

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    Cited by:

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    3. Ayrton Alfonso Medina Rodríguez & Gregorio Posada Vanegas & Rodolfo Silva Casarín & Edgar Gerardo Mendoza Baldwin & Beatriz Edith Vega Serratos & Felipe Ernesto Puc Cutz & Enrique Alejandro Mangas Che, 2022. "Experimental Investigation of the Hydrodynamic Performance of Land-Fixed Nearshore and Onshore Oscillating Water Column Systems with a Thick Front Wall," Energies, MDPI, vol. 15(7), pages 1-26, March.
    4. Qu, Ming & Yu, Dingyong & Xu, Zhigang & Gao, Zhiyang, 2022. "The effect of the elliptical front wall on energy conversion performance of the offshore OWC chamber: A numerical study," Energy, Elsevier, vol. 255(C).
    5. Li, Ming & Luo, Haojie & Zhou, Shijie & Senthil Kumar, Gokula Manikandan & Guo, Xinman & Law, Tin Chung & Cao, Sunliang, 2022. "State-of-the-art review of the flexibility and feasibility of emerging offshore and coastal ocean energy technologies in East and Southeast Asia," Renewable and Sustainable Energy Reviews, Elsevier, vol. 162(C).
    6. 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).

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