A piezoelectric energy harvester based on pressure fluctuations in k rm n vortex street
This presentation is the property of its rightful owner.
Sponsored Links
1 / 16

A Piezoelectric Energy Harvester Based on Pressure Fluctuations in Kármán Vortex Street PowerPoint PPT Presentation


  • 65 Views
  • Uploaded on
  • Presentation posted in: General

A Piezoelectric Energy Harvester Based on Pressure Fluctuations in Kármán Vortex Street. Dung-An Wang, Huy-Tuan Pham, Chia-Wei Chao, Jerry M. Chen. National Chung Hsing University Taichung, Taiwan. May 13, 2011. National Chung Hsing University. National Chung Hsing University. The Karma.

Download Presentation

A Piezoelectric Energy Harvester Based on Pressure Fluctuations in Kármán Vortex Street

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


A piezoelectric energy harvester based on pressure fluctuations in k rm n vortex street

A Piezoelectric Energy Harvester Based on Pressure Fluctuations in Kármán Vortex Street

Dung-An Wang, Huy-Tuan Pham, Chia-Wei Chao, Jerry M. Chen

National Chung Hsing University

Taichung, Taiwan

May 13, 2011


National chung hsing university

National Chung Hsing University


National chung hsing university1

National Chung Hsing University


The karma

The Karma

Feng Sui


Components of ancient feng shui

Components of ancient feng shui

  • Healthy homes

  • Sustainability

  • Environment


Energy harvesting from water flow

Energy harvesting from water flow


Design

Design


Fabrication

Fabrication


Experiment

Experiment


Experimental setup

Experimental setup


Result

Result


Result1

Result


Result2

Result


Discussion

Discussion

  • The output power of the device is relatively low.

  • An open circuit output voltage of 0.12 Vpp in average and an instantaneous output power of 0.7 nW for the pressure oscillates with an amplitude of ~0.3 kPa and a frequency of ~52 Hz.

  • Dimensions and structure of the device can be optimized to increase output power.

  • A piezoelectric material with higher piezoelectric constants can be adopted.

  • Operate at the resonance frequency.


Discussion1

Discussion

  • The resonance frequency of the energy harvesting device can be tailored to the shedding frequency of the Kármán vortex street in order to increase the output power

  • For random and broadband ambient flow sources, a structure with multiple resonant frequencies may also be considered, an array of the device.


Thank for your attention

Thank for your attention !


  • Login