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Optimization at different time scales for the design and management of an oscillating water column system

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  • Jalón, María L.
  • Baquerizo, Asunción
  • Losada, Miguel A.

Abstract

This research used an optimization method to highlight the importance of time scales in the design of a bottom-fixed OWC (oscillating water column). The different time scales studied were a sea state, a season, and a year. For the last two scales, a stochastic formulation was used to take into account the random nature of the wave climate in the time interval considered. This paper also describes a general methodology for the study of the non-stationary performance of an OWC device during its useful life, which was applied to obtain the available pneumatic power. It entailed simulations of the wave climate and the corresponding OWC-related performance magnitude, which reproduced the intra-annual and interannual climate variability at the site. This methodology was used to analyze the management-related random variables for three optimal OWC configurations on different time scales. The results of this study show that OWC performance can be enhanced by designing systems whose configuration can be adapted to successive sea states. This opens a line of research with promising technological implications that is well worth exploring in greater depth.

Suggested Citation

  • Jalón, María L. & Baquerizo, Asunción & Losada, Miguel A., 2016. "Optimization at different time scales for the design and management of an oscillating water column system," Energy, Elsevier, vol. 95(C), pages 110-123.
    • Handle: RePEc:eee:energy:v:95:y:2016:i:c:p:110-123
    DOI: 10.1016/j.energy.2015.11.062
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    References listed on IDEAS

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    Cited by:

    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. López-Ruiz, Alejandro & Bergillos, Rafael J. & Ortega-Sánchez, Miguel, 2016. "The importance of wave climate forecasting on the decision-making process for nearshore wave energy exploitation," Applied Energy, Elsevier, vol. 182(C), pages 191-203.
    3. Medina-López, E. & Moñino, A. & Bergillos, R.J. & Clavero, M. & Ortega-Sánchez, M., 2019. "Oscillating water column performance under the influence of storm development," Energy, Elsevier, vol. 166(C), pages 765-774.
    4. 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.
    5. Molina, A. & Jiménez-Portaz, M. & Clavero, M. & Moñino, A., 2022. "The effect of turbine characteristics on the thermodynamics and compression process of a simple OWC device," Renewable Energy, Elsevier, vol. 190(C), pages 836-847.
    6. 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).
    7. Rongheng Lin & Fangchun Yang & Mingyuan Gao & Budan Wu & Yingying Zhao, 2019. "AUD-MTS: An Abnormal User Detection Approach Based on Power Load Multi-Step Clustering with Multiple Time Scales," Energies, MDPI, vol. 12(16), pages 1-19, August.
    8. Wang, LiGuo & Ringwood, John V., 2021. "Control-informed ballast and geometric optimisation of a three-body hinge-barge wave energy converter using two-layer optimisation," Renewable Energy, Elsevier, vol. 171(C), pages 1159-1170.

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