A microcombustor coupled with a piezoelectric unimorph for power generation

  • G. Liu
  • , R. W. Whatmore

Research output: Chapter in Book/Report/Conference proceedingsConference proceedingpeer-review

Abstract

This article highlights the design of a unimorph for electric power generation and tested with two loading conditions. The unimorph comprises a piezoelectric ceramic bonded onto a steel disk, operating in d31 radial mode so that lateral stresses cause a charge difference through the thickness of the unimorph. The experimental methods of testing were, firstly to apply a uniformly distributed pressure pulse to the underside of the disk using compressed air. Secondly to couple the unimorph to a 5mm3 combustion chamber, and burning a stoichiometric mixture of H2:O2 metered at 5ml/min. Testing has caused the unimorph to deflect by up to 50μm and become stressed, in doing so generating electrical charge through the piezoelectric effect. Results have shown that milli-Watts of power can be generated with this configuration of piezoelectric unimorph.

Original languageEnglish
Title of host publicationInstitution of Engineering and Technology Seminar on MEMS Sensors and Actuators, ICEPT
Pages317-322
Number of pages6
Publication statusPublished - 2006
EventInstitution of Engineering and Technology Seminar on MEMS Sensors and Actuators, ICEPT - London, United Kingdom
Duration: 27 Apr 200628 Apr 2006

Publication series

NameInstitution of Engineering and Technology Seminar on MEMS Sensors and Actuators, ICEPT

Conference

ConferenceInstitution of Engineering and Technology Seminar on MEMS Sensors and Actuators, ICEPT
Country/TerritoryUnited Kingdom
CityLondon
Period27/04/0628/04/06

Keywords

  • Microcombustor
  • Piezoelectric
  • Power generator
  • Unimorph

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