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COBEM 2021
26th International Congress of Mechanical Engineering
ENERGY HARVESTING FROM BISTABILITY PHENOMENON ON CIRCULAR CYLINDERS
Submission Author:
Patrick Habowski , RS , Brazil
Co-Authors:
Patrick Habowski, Alexandre Vagtinski de Paula, Sergio Viçosa Möller
Presenter: Patrick Habowski
doi://10.26678/ABCM.COBEM2021.COB2021-0821
Abstract
An experimental study for a configuration with two circular cylinders in an aerodynamic flow channel is presented. The main objective is to explore the ability of the cylinders to produce power in small scales, known as energy harvesting, using the bistability phenomenon as the initiator mechanism. A setup with a circular table and two circular cylinders were assembled inside the flow channel, and an electric circuit with a generator was coupled outside. The rotational velocity and instantaneous power generation of the setup were measured. Two distinct configurations using aerodynamic devices were proposed. A Savonius turbine was also tested, imposing the same methodology applied for the circular cylinders. Results showed that the cylinders’ setup was able to produce small quantities of power using the aerodynamic devices, generating appreciable amounts of energy compared to the amount generated by the Savonius turbine, a device for large-scale generation.
Keywords
Bistability Flow Phenomenon, Circular Cylinders, Energy Harvesting Systems, Turbulent flow
