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An impacting energy harvester through piezoelectric device for oscillating water flow
Toma, Daniel Mihail; Carbonell Ventura, Montserrat; Pujol Bresco, David; Manuel Lázaro, Antonio; Miquel Masalles, Jaume
Universitat Politècnica de Catalunya. Departament de Mecànica de Fluids; Universitat Politècnica de Catalunya. Departament d'Enginyeria Electrònica; Universitat Politècnica de Catalunya. SARTI - Centre de Desenvolupament Tecnològic de Sistemes d'Adquisició Remota i Tractament de la Informació
The reduced power requirements of miniaturized electronics offers the opportunity to create devices having their power supply based on energy harvesters. In this paper a new idea is proposed and studied to supply underwater low-consumption devices using low-cost disk piezoelectric elements. The system scavenges energy from water motion induced in depth by surface gravity waves using piezoelectric materials and the characteristic oscillating movement of bodies with positive buoyancy that are attached to the seabed with flexible cords, similar to an inverted pendulum. The piezoelectric components that are subjected to impacts produced by the movement of the pendulum create an electrical power generator that harvests the mechanical energy brought by the sea movements. A prototype with the proposed electronic harvesting system is built and tested. The average power output of the prototype is 2.2 ± 0.3 µW, which can be increased signi¿cantly with further optimization.
Peer Reviewed
Àrees temàtiques de la UPC::Energies::Energia elèctrica::Automatització i control de l'energia elèctrica
Àrees temàtiques de la UPC::Enginyeria electrònica::Instrumentació i mesura::Sensors i actuadors
Piezoelectricity
Energy harvesting
Piezoelectric materials
Hydraulics
Energy harvesting
Piezoelectric
Sea currents
Marine sensors networks
Impacts
Piezoelectricitat -- Materials
Gestió energètica
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