Power Control Optimization of an Underwater Piezoelectric Energy Harvester
| Autor: | Jose Manuel Lopez-Guede, Unai Fernandez-Gamiz, Javier Sancho, Iñigo Aramendia, Ekaitz Zulueta Guerrero |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
energy harvesting
displacement Maximum power principle Computer science Water flow Acoustics circular-cylinder 02 engineering and technology lcsh:Technology karman vortex street lcsh:Chemistry vibrations underwater networks 0202 electrical engineering electronic engineering information engineering General Materials Science Underwater wireless sensor networks lcsh:QH301-705.5 Instrumentation pipelines Fluid Flow and Transfer Processes piezoelectric control algorithm velocity amplification lcsh:T generator Process Chemistry and Technology 020208 electrical & electronic engineering General Engineering 021001 nanoscience & nanotechnology lcsh:QC1-999 Computer Science Applications Power (physics) Vibration lcsh:Biology (General) lcsh:QD1-999 lcsh:TA1-2040 flow lcsh:Engineering (General). Civil engineering (General) 0210 nano-technology Energy harvesting lcsh:Physics Energy (signal processing) devices Power control |
| Zdroj: | Applied Sciences; Volume 8; Issue 3; Pages: 389 Applied Sciences, Vol 8, Iss 3, p 389 (2018) Addi. Archivo Digital para la Docencia y la Investigación instname |
| Popis: | Over the past few years, it has been established that vibration energy harvesters with intentionally designed components can be used for frequency bandwidth enhancement under excitation for sufficiently high vibration amplitudes. Pipelines are often necessary means of transporting important resources such as water, gas, and oil. A self-powered wireless sensor network could be a sustainable alternative for in-pipe monitoring applications. A new control algorithm has been developed and implemented into an underwater energy harvester. Firstly, a computational study of a piezoelectric energy harvester for underwater applications has been studied for using the kinetic energy of water flow at four different Reynolds numbers Re = 3000, 6000, 9000, and 12,000. The device consists of a piezoelectric beam assembled to an oscillating cylinder inside the water of pipes from 2 to 5 inches in diameter. Therefore, unsteady simulations have been performed to study the dynamic forces under different water speeds. Secondly, a new control law strategy based on the computational results has been developed to extract as much energy as possible from the energy harvester. The results show that the harvester can efficiently extract the power from the kinetic energy of the fluid. The maximum power output is 996.25 mu W and corresponds to the case with Re = 12,000. The funding from the Government of the Basque Country and the University of the Basque Country UPV/EHU through the SAIOTEK (S-PE11UN112) and EHU12/26 research programs, respectively, is gratefully acknowledged. The authors are very grateful to SGIker of UPV/EHU and European funding (ERDF and ESF) for providing technical and human. |
| Databáze: | OpenAIRE |
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