PZT and PVDF piezoelectric transducers' design implications on their efficiency and energy harvesting potential

被引：7

作者：

Stamatellou A.-M. ^{[1
]}

机构：

[1] Mechanical Engineering Department, University of Thessaly, Volos

来源：

Energy Harvesting and Systems | 2023年 / 10卷 / 02期

关键词：

harvesting efficiency; piezoelectric transducers; PVDF; PZT; transducer design;

D O I：

10.1515/ehs-2022-0087

中图分类号：

学科分类号：

摘要：

Despite the intensive research carried out in the last two decades, the actual performance of piezoelectric energy harvesters needs significant improvement for widespread applicability. Custom designed experimental set-ups and methods can be applied for the evaluation of new piezoelectric energy harvesters or modified design versions of existing transducers, in terms of efficiency and specific power. In this context, two representative types of commercial cantilever piezoelectric transducers, made of PZT and PVDF material respectively, were tested in various combinations of aerodynamic and harmonic base excitation. A line type laser was used along with long exposure photography for the visualisation of the piezofilm's mode shapes, tip deflection and the digitization of the elastic line at the oscillation extrema. The harvested power was measured at on-resonance conditions and studied relative to the excitation combinations and the mode shapes. Energy conversion efficiency, defined as the ratio of the electric-field energy accumulated by the supercapacitors, over the total elastic strain energy change of the material during the oscillations is measured and compared. Design improvements are proposed for both transducer types to extract and absorb higher amounts of energy and improve their bandwidth to match the available excitation source characteristics. & amp; copy; 2022 Walter de Gruyter GmbH, Berlin/Boston. © 2023 Walter de Gruyter GmbH. All rights reserved.

引用

页码：157 / 167

页数：10

共 46 条

[1]

Aboulfotoh N., Twiefel J., A Study on Bandwidth and Performance Limitations of Array Vibration Harvester Configurations, Energy Harvesting and Systems, 4, 1, pp. 47-56, (2017)

[2]

Aboulfotoh N., Twiefel J., Krack M., Wallaschek J., Experimental Study on Performance Enhancement of a Piezoelectric Vibration Energy Harvester by Applying Self-Resonating Behavior, Energy Harvesting and Systems, 4, 3, pp. 131-136, (2017)

[3]

Amini Y., Emdad H., Farid M., An Accurate Model for Numerical Prediction of Piezoelectric Energy Harvesting from Fluid Structure Interaction Problems, Smart Materials and Structures, 23, 9, (2014)

[4]

Bernard F., Gimeno L., Viala B., Cugat O., The Effect of Temperature and Strain on Power Conversion Efficiency of PVDF-Based Thermal Energy Harvesters, Proceedings, 1, 4, pp. 1-4, (2017)

[5]

Bibo A., Daqaq M.F., Energy Harvesting under Combined Aerodynamic and Base Excitations, Journal of Sound and Vibration, 332, 20, pp. 5086-5102, (2013)

[6]

Brenes A., Morel A., Gibus D., Yoo C.S., Gasnier P., Lefeuvre E., Badel A., Large-Bandwidth Piezoelectric Energy Harvesting with Frequency-Tuning Synchronized Electric Charge Extraction, Sensors and Actuators A: Physical, 302, (2020)

[7]

Brown R.H., Piezo Film for Energy Harvesting, (2013)

[8]

Carter R., Kensley R., Introduction to Piezoelectric Transducers, (2020)

[9]

Chang C., Tran V.H., Wang J., Fuh Y.-K., Lin L., Direct-Write Piezoelectric Polymeric Nanogenerator with High Energy Conversion Efficiency, Nano Letters, 10, 2, pp. 726-731, (2010)

[10]

Chiu F.-C., Chuang Y.-C., Liao S.-J., Chang Y.-H., Comparison of PVDF/PVAc/GNP and PVDF/PVAc/CNT Ternary Nanocomposites: Enhanced Thermal/Electrical Properties and Rigidity, Polymer Testing, 65, pp. 197-205, (2018)

← 1 2 3 4 5 →