RESEARCH & DEVELOPMENT
WAVEC OFFSHORE RENEWABLES
WavEC is a private non-profit association, currently with 13 associates (industrial and public), and devoted to the development and promotion of offshore energy utilization through technical and strategic support to companies and public bodies. WavEC team is composed by 20 specialists with a broad range of experience on ocean energy, including both the technical (numerical modelling, wave resource, monitoring, technology) and non-technical (economic models, environmental and licensing, public policies, dissemination) issues.
In 2015, WavEC coordinated two European funded projects:
WavEC has been further collaborating with a number of European R&D consortiums, including:
WavEC is a founding member of the European Ocean Energy Association (OEE), and associate member of the European Energy Research Alliance.
INSTITUTO SUPERIOR TÉCNICO
Two groups have been active on ocean energy at Instituto Superior Técnico (IST), University of Lisbon:
Following previous years, the activity at IDMEC has concentrated on wave energy conversion, especially the development of new types of oscillating water column (OWC) converters and self-rectifying air turbines. Laboratory tests of moorings with imposed motion of the moored body have been performed to validate numerical codes. Small scale model tests of a patented new concept for a floating OWC have been performed at IST, in collaboration with LNEG, Lisbon. An important area of research at IDMEC is latching control of floating and fixed-structure OWC converters, taking advantage of the new types of air turbines fitted with fast valves; this included numerical modelling and a hardware-inthe- loop testing at Tecnalia test rig (in Bilbao, Spain) within the framework of the FP7-MARINET programme.
IDMEC/IST is a partner in the WETFEET project (European H2020 programme); their involvement concerns mainly the experimental development of a high-efficiency twin-rotor self-rectifying air turbine, and the development of new concepts for floating OWCs. Modelling and optimization, combining CFD and model testing of the recently patented twin-rotor self-rectifying air turbine have been performed, in collaboration with the Universities of Valladolid and Oviedo (Spain). The results, published in the journal Energy, indicated a peak efficiency about 86%.
Ocean energy is becoming a major area in the diversified activity of CENTEC. The activities at CENTEC in ocean energy involved a wide range of topics covering waves, Tidal currents and offshore wind. The characterization, in European waters (Iberian Peninsula, Galway Bay), of wave energy (and to a much lesser extent tidal and offshore wind energies) has been one of the dominant topics. The study of ocean energy conversion focused mainly on wave energy converters, with numerical theoretical/modelling of several types of devices, and PTOs (namely dual-chamber OWCs and hydrauliccircuit PTOs).
Since 2013, IST has been involved in the EUREC master course in Renewable Energy, offering a onesemester specialization in ocean energy. This took place in February to May 2015.