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The development of the spar-buoy OWC wave energy converter at IST
22 June 2021 | 09:00 - 17:30
Speaker: Dr. João C. C. Henriques, Principal Investigator at Instituto de Engenharia Mecânica (IDMEC) and an Assistant Professor at IST Lisbon
João C. C. Henriques was born in Lisbon, Portugal, in 1969. He received the Diploma in Mechanical Engineering in 1993, the M.Sc. in Mechanical Engineering in 1996, and the Ph.D. in Mechanical Engineering in 2006, all from the Instituto Superior Técnico (IST), Technical University of Lisbon (presently University of Lisbon). From 1993 to 2007, his main research topic was the development of numerical methods for simulating high-speed compressible flow. Since 2008, his main areas of research are the numerical and experimental modelling of wave energy converters (WECs), control of the power take-off system of WECs and the aerodynamic design of air turbines for oscillating water column WECs. He published 40 papers in peer-refereed journals. He also holds five patents, four in the field of wave energy and another in wind power. He participated in eight European projects in the area of wave energy. Presently is a Principal Investigator at Instituto de Engenharia Mecânica (IDMEC) and an Assistant Professor at IST.
The activity is composed of four presentations addressing the following topics:
1) The development of oscillating water column (OWC) wave energy converters (WECs) at IST (1h15m + 15m discussion) – This presentation aims to describe the development path taken by the IST Wave Energy Group in the development of OWC WECs, and how the solution of several scientific challenges resulted in several patents such as biradial turbine.
2) Model testing of WECs and air turbines for OWCs (1h15m + 15m discussion) – Model testing of OWCs comprises the hydrodynamics model, the air turbine and the complete power take-off system. This presentation addresses the different types of model tests by discussing the implementation and the major issues related to physics.
3) The reynolds number and wave‐induced real‐fluid effects in marine energy converters – A discussion about the scaling effects on model testing based on the analysis of the Navier-Stokes equations and experimental data.
4) Selection and control of an air turbines for OWCs (1h15m + 15m discussion) – The selection of air turbine is a multidisciplinary task that requires not only knowledge about the turbine itself but also the interactions with the hydrodynamics and control. This presentation aims discuss air turbine aerodynamics and control, and the interaction of these with the hydrodynamics.
9:00-10:30 – Dr. Joao Henriques, The development of OWC wave energy converters (WECs) at IST
10:30-11:00 – Break
11:00-12:30 – Dr. Joao Henriques, Model testing of WECs and air turbines for OWCs
14:00-15:30 – Dr. Joao Henriques, The Re number and wave‐induced real‐fluid effects in marine energy converters
15:30-16:00 – Break
16:00-17:30 – Dr. Joao Henriques, Selection and control of air turbines for OWCs