Bulletin of the American Physical Society
71st Annual Meeting of the APS Division of Fluid Dynamics
Volume 63, Number 13
Sunday–Tuesday, November 18–20, 2018; Atlanta, Georgia
Session A06: Energy Harvesting and Power Generation I
8:00 AM–9:57 AM,
Sunday, November 18, 2018
Georgia World Congress Center
Room: B208
Chair: Oscar Curet, Florida Atlantic University
Abstract ID: BAPS.2018.DFD.A06.1
Abstract: A06.00001 : Mangrove-Like System for Harvesting Tidal Energy*
8:00 AM–8:13 AM
Presenter:
Daniel O. Gómez
(Universidad del Turabo)
Authors:
Daniel O. Gómez
(Universidad del Turabo)
Eduardo E. Castillo
(Universidad del Turabo)
Amirkhosro Kazemi
(Florida Atlantic Univ)
Oscar M Curet
(Florida Atlantic Univ)
A mangrove-like system to harvest hydrokinetic energy from tidal stream was designed and tested for different flow conditions. The energy harvesting system was composed of an array of cylinders hinged at a pivot point above the water’s surface allowing one degree of freedom. An electric generator composed of a pair of magnets attached of the cylinders and a winding was used to transfer the mechanical motion to electrical energy. The model was tested in a water for different patch configurations, hinged stiffness’s and flow velocities ranging from 2 to 15 cm/s. The patch kinematics and voltage with no load were measured. In addition, the wake downstream the patch was measured with particle image velocimetry. It was found that the patch started to oscillate after reaching some critical velocity. As the spacing between the cylinders increased the critical velocity to start the oscillation decreased. We present the hydrodynamics and performance of the energy harvesting system for the different conditions considered. Our results suggest that the cylinder arrangement and hinged stiffness can be tuned arrays to maximize the energy harvested at different flow conditions.
*This work was funded by the National Science Foundation’s Research Experience for Undergraduates grant NSF EEC-1659468
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2018.DFD.A06.1
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