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J. Mar. Sci. Eng. 2018, 6(2), 64; https://doi.org/10.3390/jmse6020064

Coastal Defence Integrating Wave-Energy-Based Desalination: A Case Study in Madagascar

1
Department of Engineering, University of Campania “Luigi Vanvitelli”, via Roma, 29, 81031 Aversa (Caserta), Italy
2
Inter-University National Consortium for Marine Sciences (CoNISMa), Piazzale Flaminio, 9-00196 Roma, Italy
3
Stazione Zoologica Anton Dohrn; Villa Comunale, 80121 Napoli, Italy
*
Author to whom correspondence should be addressed.
Received: 10 April 2018 / Revised: 9 May 2018 / Accepted: 25 May 2018 / Published: 1 June 2018
(This article belongs to the Section Ocean Engineering)
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Abstract

In arid, coastal cities, water demand is often met through large-scale desalination systems. However, the energy required to run desalination plants remains a drawback. Further, numerous low-density population areas lack not only fresh water availability, but in most of the cases electrical grid connection or any other energy source as well. The challenge, consequently, is to ensure adequate fresh water supplies at the lowest possible cost. The main objective of this work is to assess the freshwater production from a reverse osmosis desalination system powered by a wave energy converter, the Overtopping Breakwater for Wave Energy Conversion (OBREC). The desktop analysis is illustrated through a case study on the Fenoarivo Atsinanana coast, along north-eastern Madagascar. The novel aspect of the analysis method is the application of a specific numerical code calibrated using preliminary results from a two-year monitoring campaign of the first OBREC prototype in operation in Naples Harbour (Italy). Instead of dissipating the incoming wave energy, the system collects the overtopping water above the sea level and the potential energy is converted into electricity through low head turbines. Then, the flow will be driven towards the desalination system. This configuration seems like a promising opportunity for developing countries to meet their water supply needs while at the same time developing their renewable energy potential. View Full-Text
Keywords: desalination; wave energy; OBREC; green ports desalination; wave energy; OBREC; green ports
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Contestabile, P.; Vicinanza, D. Coastal Defence Integrating Wave-Energy-Based Desalination: A Case Study in Madagascar. J. Mar. Sci. Eng. 2018, 6, 64.

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