Search results for "Piezoelectric effect"

showing 4 items of 4 documents

Experimental investigation on different rainfall energy harvesting structures

2018

In this paper proposes an experimental comparison between different rainfall harvesting devices and the study of the corresponding electrical rectifying circuit. More in detail, three harvesting structures are considered: the cantilever, the bridge and the floating circle. For each of the proposed structure, different waveforms have been acquired and discussed. The processed data have been compared in order to suggest the best choice for the rectifying circuit, from the simplest one to the most endorsed in the technical literature.

010302 applied physicsCantileverComputer scienceRenewable Energy Sustainability and the EnvironmentRainfall energy harvester02 engineering and technologySettore ING-IND/32 - Convertitori Macchine E Azionamenti Elettrici021001 nanoscience & nanotechnology01 natural sciencesTechnical literatureBridge (nautical)Settore ING-IND/31 - ElettrotecnicaTransducer0103 physical sciencesAutomotive EngineeringElectronic engineeringWaveform0210 nano-technologyEnergy harvestingPiezoelectric effectHardware_LOGICDESIGN
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Comparison among different rainfall energy harvesting structures

2018

In this paper, an experimental comparison between different rainfall harvesting devices through the study of the electrical rectifying circuit is proposed. In more detail, three harvesting structures are considered: the cantilever, the bridge and the floating circle. Different waveforms were acquired and discussed. The processed data were compared in order to suggest the best choice for the rectifying circuit, from the simplest one to that most frequently endorsed in the technical literature.

CantileverComputer science020209 energyHardware_PERFORMANCEANDRELIABILITY02 engineering and technologylcsh:TechnologyEnergy harvesterlcsh:ChemistryEngineering (all)Hardware_INTEGRATEDCIRCUITS0202 electrical engineering electronic engineering information engineeringElectronic engineeringWaveformGeneral Materials ScienceRectifying circuitlcsh:QH301-705.5InstrumentationFluid Flow and Transfer ProcessesEnergy harvester; Piezoelectric effect; Rectifying circuit; Materials Science (all); Instrumentation; Engineering (all); Process Chemistry and Technology; Computer Science Applications1707 Computer Vision and Pattern Recognition; Fluid Flow and Transfer Processeslcsh:TProcess Chemistry and TechnologyGeneral EngineeringEnergy harvesterComputer Science Applications1707 Computer Vision and Pattern RecognitionTechnical literaturelcsh:QC1-999Computer Science ApplicationsSettore ING-IND/31 - Elettrotecnicalcsh:Biology (General)lcsh:QD1-999lcsh:TA1-2040Materials Science (all)lcsh:Engineering (General). Civil engineering (General)Energy harvestinglcsh:PhysicsPiezoelectric effectHardware_LOGICDESIGN
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Rainfall energy harvester

2015

This chapter provides a detailed study on the harvest of the energy contained in raindrops by means of piezoelectric transducers. The energy harvester has the role of an electric source, able to recharge storage devices of small electronic components, such wireless sensors, by using the vibrational energy released by the drops hitting the transducer, reducing in such a way the chemical waste of conventional batteries. In technical literature, diverse studies agree on the level of suitable generated voltage on the electrodes of a piezoelectric transducer subjected to rainfall, but a complete characterization on the supplied power is still missing. This work, also to limit optimistic forecast…

HydrologySettore ING-IND/31 - ElettrotecnicaEnvironmental scienceEnergy harvester piezoelectric effect lead zirconate titanate PZT polyvinylidene difluoride PVDF cantilever structureSettore ING-IND/32 - Convertitori Macchine E Azionamenti ElettriciEnergy harvester
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Piezoelectric model of rainfall energy harvester

2014

In this paper a model to predict the harvest of the energy contained in rainfall by means of piezoelectric transducers is presented. Different studies agree on the level of suitable generated voltage on the electrodes of a piezoelectric transducer subjected to rainfall, but a complete characterization on the supplied power is still missing. This work, in order to limit optimistic forecasts, compares the behavior of the transducers subjected to real and artificial rainfall, a condition that has shown promising behavior in laboratory.

Piezoelectric coefficientPiezoelectric accelerometerPiezoelectric sensorAcousticsenergy harvester piezoelectric effectSettore ING-IND/32 - Convertitori Macchine E Azionamenti ElettriciPiezoelectricitySettore ING-INF/01 - ElettronicaPower (physics)Settore ING-IND/31 - ElettrotecnicaTransducerPMUTEnvironmental scienceSettore ING-INF/07 - Misure Elettriche E ElettronicheVoltage
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