Average power output and the power law: Identifying trends in the behavior of fluidic energy harvesters in grid turbulence

Kevin Ferko, Nicholas Chiappazzi, Jiawei Gong, Amir H. Danesh-Yazdi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

While the majority of the literature in energy harvesting is dedicated to resonant harvesters, non-resonant harvesters, especially those that use turbulence-induced vibration to generate energy, have not been studied in as much detail primarily due to their comparatively small power output, general non-tunability and difficulty in associating flow conditions to harvester behavior. In this extensive study, we look at the behavior of piezoelectric cantilever beams in different types of grid turbulence with the intention of identifying trends in the harvester output. Our results show that the power-law decay of the harvester output that had previously been observed for rectangular grids holds for a wide variety of fractal grids as well. Additionally, experimental data shows that the average harvester output in grid turbulence follows a power-law growth with respect to the mean flow velocity for relative short and stiff piezoelectric beams.

Original languageEnglish (US)
Title of host publicationActive and Passive Smart Structures and Integrated Systems XII
EditorsAlper Erturk
PublisherSPIE
ISBN (Electronic)9781510625891
DOIs
StatePublished - Jan 1 2019
EventActive and Passive Smart Structures and Integrated Systems XII 2019 - Denver, United States
Duration: Mar 4 2019Mar 7 2019

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume10967
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceActive and Passive Smart Structures and Integrated Systems XII 2019
CountryUnited States
CityDenver
Period3/4/193/7/19

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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  • Cite this

    Ferko, K., Chiappazzi, N., Gong, J., & Danesh-Yazdi, A. H. (2019). Average power output and the power law: Identifying trends in the behavior of fluidic energy harvesters in grid turbulence. In A. Erturk (Ed.), Active and Passive Smart Structures and Integrated Systems XII [109670Z] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 10967). SPIE. https://doi.org/10.1117/12.2514293