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Exergy assessment and sustainability of a simple off-shore oscillating water column device

Author

Listed:
  • Molina-Salas, A.
  • Quirós, C.
  • Gigant, P.
  • Huertas-Fernández, F.
  • Clavero, M.
  • Moñino, A.

Abstract

This paper present a research on the performance efficiency and sustainability of an Oscillating Water Column (OWC) simple off-shore device, accounting for the influence of governing thermodynamic variables (moisture, temperature, pressure) in the compression/expansion polytropic process. The work proposes a simple off-shore OWC experimental set up as the basis of the study. The analysis takes into consideration both gas subsystems inside and outside the OWC, to achieve a better understanding of the conservative nature of entropy system variable, the net exchange balance, the effects on efficiency and exergy destruction, and the interpretation of the OWC as a thermodynamic engine. Results show that, within the context of the set up, moderate wave climate conditions contribute to a better efficiency of the device in terms of output power, providing with a low impact on exergy destruction and high sustainability in terms of renewability index.

Suggested Citation

  • Molina-Salas, A. & Quirós, C. & Gigant, P. & Huertas-Fernández, F. & Clavero, M. & Moñino, A., 2023. "Exergy assessment and sustainability of a simple off-shore oscillating water column device," Energy, Elsevier, vol. 264(C).
    • Handle: RePEc:eee:energy:v:264:y:2023:i:c:s0360544222030286
    DOI: 10.1016/j.energy.2022.126142
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    References listed on IDEAS

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    1. Moñino, A. & Quirós, C. & Mengíbar, F. & Medina-Lopez, E. & Clavero, M., 2020. "Thermodynamics of the OWC chamber: Experimental turbine performance under stationary flow," Renewable Energy, Elsevier, vol. 155(C), pages 317-329.
    2. Medina-López, E. & Bergillos, R.J. & Moñino, A. & Clavero, M. & Ortega-Sánchez, M., 2017. "Effects of seabed morphology on oscillating water column wave energy converters," Energy, Elsevier, vol. 135(C), pages 659-673.
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