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Enhancement of hydrodynamic performance of an Oscillating Water Column with harbour walls

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  • Daniel Raj, D.
  • Sundar, V.
  • Sannasiraj, S.A.

Abstract

A comprehensive experimental investigation on the effect of resonant length and the opening angle of harbour walls integrated with an Oscillating Water Column (OWC) under random sea state has been carried out. The random sea state is entitled to be the reference parameter for analysing the performance of the OWC under controlled conditions. The results on the variations of volume flux of water inside the OWC chamber, pneumatic pressure and relative capture width are depicted as a function of relative water depth for different configurations of the harbour walls in a dimensionless form. The presence of the harbour walls has enhanced the performance characteristics of the OWC. Further, the length and inclination of the harbour walls were varied to achieve a relative capture width, RCW (ratio of output power to the input power) of 75% more than that from the OWC without harbour walls. The details of the models, experimental set-up, testing procedure, results and discussion on the aforementioned study are presented.

Suggested Citation

  • Daniel Raj, D. & Sundar, V. & Sannasiraj, S.A., 2019. "Enhancement of hydrodynamic performance of an Oscillating Water Column with harbour walls," Renewable Energy, Elsevier, vol. 132(C), pages 142-156.
    • Handle: RePEc:eee:renene:v:132:y:2019:i:c:p:142-156
    DOI: 10.1016/j.renene.2018.07.089
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    References listed on IDEAS

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    1. John Ashlin, S. & Sundar, V. & Sannasiraj, S.A., 2016. "Effects of bottom profile of an oscillating water column device on its hydrodynamic characteristics," Renewable Energy, Elsevier, vol. 96(PA), pages 341-353.
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    Cited by:

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    2. Gubesch, Eric & Abdussamie, Nagi & Penesis, Irene & Chin, Christopher, 2022. "Maximising the hydrodynamic performance of offshore oscillating water column wave energy converters," Applied Energy, Elsevier, vol. 308(C).
    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. Zhao, Xuanlie & Zhang, Yang & Li, Mingwei & Johanning, Lars, 2020. "Hydrodynamic performance of a Comb-Type Breakwater-WEC system: An analytical study," Renewable Energy, Elsevier, vol. 159(C), pages 33-49.
    5. Gubesch, Eric & Abdussamie, Nagi & Penesis, Irene & Chin, Christopher, 2022. "Effects of mooring configurations on the hydrodynamic performance of a floating offshore oscillating water column wave energy converter," Renewable and Sustainable Energy Reviews, Elsevier, vol. 166(C).
    6. Tomás Cabral & Daniel Clemente & Paulo Rosa-Santos & Francisco Taveira-Pinto & Tiago Morais & Filipe Belga & Henrique Cestaro, 2020. "Performance Assessment of a Hybrid Wave Energy Converter Integrated into a Harbor Breakwater," Energies, MDPI, vol. 13(1), pages 1-22, January.
    7. Calheiros-Cabral, Tomás & Clemente, Daniel & Rosa-Santos, Paulo & Taveira-Pinto, Francisco & Ramos, Victor & Morais, Tiago & Cestaro, Henrique, 2020. "Evaluation of the annual electricity production of a hybrid breakwater-integrated wave energy converter," Energy, Elsevier, vol. 213(C).

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