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Comparative Analysis of Catenary and TLP Mooring Systems on the Wave Power Efficiency for a Dual-Chamber OWC Wave Energy Converter

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  • Dimitrios N. Konispoliatis

    (School of Naval Architecture and Marine Engineering, National Technical University of Athens, 157 73 Athens, Greece)

  • Anargyros S. Mavrakos

    (School of Naval Architecture and Marine Engineering, National Technical University of Athens, 157 73 Athens, Greece)

Abstract

The primary challenge in the design of offshore oscillating water column (OWC) devices lies in maintaining structural integrity throughout their operational lifespan while functioning in challenging environmental conditions. Simultaneously, it is vital for these devices to demonstrate efficiency in wave power absorption across a range of environmental scenarios pertinent to the selected installation site. The present manuscript seeks to compare two distinct mooring types for a dual-chamber OWC device to enhance its wave power efficiency. To accomplish this objective, an analysis of wave power absorption efficiency will be conducted on both a catenary mooring system and a tension-leg platform (TLP) mooring arrangement, thereby identifying the most suitable configuration. The study elucidates how OWC mooring characteristics influence wave power absorption efficiency. While the catenary mooring system exhibits two distinct resonant wave frequencies, resulting in enhanced wave power absorption at those frequencies, the TLP mooring system demonstrates superior overall wave power absorption efficiency across a broader range of wave frequencies, thus showcasing its greater potential for wave energy conversion under diverse environmental conditions.

Suggested Citation

  • Dimitrios N. Konispoliatis & Anargyros S. Mavrakos, 2025. "Comparative Analysis of Catenary and TLP Mooring Systems on the Wave Power Efficiency for a Dual-Chamber OWC Wave Energy Converter," Energies, MDPI, vol. 18(6), pages 1-36, March.
    • Handle: RePEc:gam:jeners:v:18:y:2025:i:6:p:1473-:d:1614109
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    1. Eric Gubesch & Nagi Abdussamie & Irene Penesis & Christopher Chin, 2025. "Experimental Investigations of Moored OWC Wave Energy Converters in Cyclonic Conditions: Survivability Versus Operational Performance," Energies, MDPI, vol. 18(10), pages 1-37, May.

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