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U-OWC devices embodied into breakwaters: from small-scale field experiments in the NOEL lab to the first prototype in the Mediterranean Sea

U-OWC devices embodied into breakwaters: from small-scale field experiments in the NOEL lab to the first prototype in the Mediterranean Sea

Prof. Felice Arena
Professor of Ocean Engineering at the ‘Mediterranea’ University of Reggio Calabria
Director of the Natural Ocean Engineering Laboratory - NOEL

Monday 06/05/2019, time 13:00pm
Room A, Department of Civil Engineering

Abstract: The lecture will give an overview on some activities in the Mediterranean Sea concerning wave energy exploitation with Resonant Wave Energy Converters (REWEC3 or U-OWC). Then, some facilities of the Natural Ocean Engineering Laboratory (NOEL) in Reggio Calabria for small scale field experiments will be shown by describing some recent activities concerning marine energy.
Firstly, some results will be shown on the new devices U-OWC. They are based on the principle of the classical OWC (Oscillating Water Column), but they include a small vertical U-duct that can be designed for tuning a system with a certain eigen-frequency at the design stage, so to obtain an impressive natural resonance without any device for phase control. Two small-scale field experiments (at 1:8 and 1:10 scale) carried out in the NOEL to validate the semi-analytical model of the plant will be discussed.
Then, a full-scale device (prototype) built within a major project in the Port of Civitavecchia (the Port of Rome, Italy), where 500m of the new breakwater embody a U-OWC device, will be discussed. The design logic and the performance of this device in absorbing wave energy and in producing electrical power will be examined. The former issue pertains to the safety of the area close to the structure; the latter pertains to the determination of the efficiency of the system in harvesting wave energy.
Finally, some aspects related to two new projects on U-OWC in the Port of Salerno and in the Porto delle Grazie (which is a Marina in Roccella Jonica), will be investigated.
Short-Bio:
Felice Arena[1][1] is Full Professor of Ocean Engineering at the ‘Mediterranea’ University of Reggio Calabria, where he is Director of the Natural Ocean Engineering Laboratory NOEL (www.noel.unirc.it).
Fields of research: mechanics and statistics of ocean waves; offshore engineering; wave energy converters; offshore wind energy.
Author of >200 papers, published in international journals, books and in Proceedings of National and International Conferences. In Scopus he has 164 publications, with 1157 citations and h-index 20.
Member of the Scientific Committee for the STRUCTURES. SAFETY AND RELIABILITY SYMPOSIUM at the OOAE Division” by ASME International, since 2005. Senior Member, in PIANC, of the Working Group “Renewable Energy for Maritime Ports” (159), between 2012 and 2019. In the Editorial Board of “Probabilistic Engineering Mechanics”; Associate Editor of “ASME JOMAE”. Editor of Special Issues: in “Probabilistic Engineering Mechanics” (Vol. 34, 2014); in the “Phil. Trans. A Roy. Soc” (2015 Vol. 373 Issue: 2035); in “Probabilistic Engineering Mechanics” (Vol. 54, 2018).
Has been Visiting Professor at: Columbia University of New York (USA), Rice University (Houston, USA), Instituto Superior Tecnico (Lisbon, Portugal), Indian institute of Technology IIT Madras (Chennai, India).
Principal investigator of many Italian and international projects for a total amount of more than 20 million euros, on offshore engineering and marine energy. In particular: scientific supervisor of PLENOSE project (Marie Curie action, duration 2014-2018); scientific coordinator of the REWEC 3 Project (EU TEN-T Programme), on the wave energy exploitation in the Port of Civitavecchia; leading the UNIRC H2020 unit project “The Blue Growth Farm” (duration: 2018-2021).
He founded WAVENERGY.IT, a Spin Off of the Mediterranea University of Reggio Calabria (Italy), which is established for developing devices for wave energy exploitation (www.wavenergy.it).