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Publications
Silva, D., Rusu, E. and Guedes Soares, C. (2013) , Evaluation of various technologies for wave energy conversion in the Portuguese nearshore, Energies, Vol. 6(3), pp. 1344-1364. ISSN: 1996-1073.
The objective of the present work is to perform an evaluation of the performances provided by various technologies for the wave energy extraction in the Portuguese continental coastal environment. The wave climate in the target area is first analyzed using the results coming from three years of simulations with a wave prediction system based on numerical models. Considering the above data, diagrams for the bivariate distributions of the sea states occurrences, defined by the significant wave height and the energy period, were designed for both winter and total time. On this basis, the efficiency of five different technologies for the extraction of the wave energy was assessed in some relevant locations from the Portuguese nearshore. According to the results obtained, the Portuguese continental coastal environment appears to be appropriate for the wave energy extraction. In the same time, the present work shows that the efficiency of the wave energy conversion does not depends only on the average wave energy but is also dependent on the distribution of the wave energy along the sea states. For this reason, a good accordance between the characteristics of the power matrices of the wave energy converters operating in a certain place and the diagrams for the bivariate distributions of the sea states occurrences corresponding to the location considered represents a key issue in selecting the most appropriate technology for the wave energy extraction.
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