A multi-physics system integration and modeling method for piezoelectric wave energy harvester

Shao En Chen, Fu Ting Pan, Ray Yeng Yang, Chia Che Wu

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

The multiphysics system integration and modeling method, including hydrodynamic, kinematic, and electromechanical models, were developed. A one-way plucking-driven piezoelectric wave energy harvester (OPD-PWEH) was also developed; it consists of a floating cylindrical buoy, a frequency up-conversion mechanism based on a one-way bearing, and a piezoelectric component based on an array of piezoelectric bulk composite cantilever beams. The one-way bearing converts the repetitive clockwise and counterclockwise rotary motion of the input shaft into a single-directional clockwise rotary motion of the output shaft. The OPD-PWEH was tested in a wave flume under wave amplitudes of 50, 37.5, and 25 mm and wave periods of 1.0, 1.5, and 2.0 s. The experimental results showed that the RMS voltage and average power were 4.47 V and 0.4 mW, respectively, and they were obtained at 50 mm wave amplitude and 1 s wave period.

Original languageEnglish
Article number121654
JournalApplied Energy
Volume349
DOIs
Publication statusPublished - 2023 Nov 1

All Science Journal Classification (ASJC) codes

  • Building and Construction
  • Renewable Energy, Sustainability and the Environment
  • Mechanical Engineering
  • General Energy
  • Management, Monitoring, Policy and Law

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