Thermomechanical Effects on Electrical Energy Harvested from Laminated Piezoelectric Devices
| Autor: | Raj Das, Pornrawee Thonapalin, Sontipee Aimmanee, Pitak Laoratanakul |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
energy harvesting
Materials science Thunder Piezoelectric sensor General Chemical Engineering Electric potential energy piezoelectric material 02 engineering and technology 021001 nanoscience & nanotechnology Condensed Matter Physics Piezoelectricity Inorganic Chemistry thermomechanical effect 020303 mechanical engineering & transports 0203 mechanical engineering Residual stress Unimorph lcsh:QD901-999 General Materials Science lcsh:Crystallography Composite material 0210 nano-technology Energy harvesting Mechanical energy THUNDER devices |
| Zdroj: | Crystals Volume 11 Issue 2 Crystals, Vol 11, Iss 141, p 141 (2021) |
| ISSN: | 2073-4352 |
| DOI: | 10.3390/cryst11020141 |
| Popis: | Piezoelectric materials are used to harvest ambient mechanical energy from the environment and supply electrical energy via their electromechanical coupling property. Amongst many intensive activities of energy harvesting research, little attention has been paid to study the effect of the environmental factors on the performance of energy harvesting from laminated piezoelectric materials, especially when the temperature in the operating condition is different from the room temperature. In this work, thermomechanical effects on the electrical energy harvested from a type of laminated piezoelectric devices, known as thin layer unimorph ferroelectric driver (called THUNDER) were investigated. Three configurations of THUNDER devices were tested in a controlled temperature range of 30–80 °C. The THUNDER devices were pushed by using a cam mechanism in order to generate required displacements and frequencies. The experimental results exhibited a detrimental effect of the elevated temperature on the generated voltage and the harvested electrical power. It is due to changes in residual stress and geometry. These results are advantageous for many applications of the THUNDER devices and for future design of a new laminated piezoelectric sensor and energy harvester in an elevated temperature environment. |
| Databáze: | OpenAIRE |
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