Design of a mechanical resonator to be coupled to a thermoacoustic stirling-engine

M. E.H. Tijani*, Srinivas Vanapalli, Simon Spoelstra

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

5 Citations (Scopus)

Abstract

This paper describes the design of a mechanical resonator for a thermoacoustic Stirling-engine. The engine was previously run with a quarter-wavelength acoustic resonator. The advantage of the mechanical resonator is that it is compact and would dissipate less acoustic power. The mechanical resonator consists of a twin piston-spring assembly moving in opposite phase to cancel vibrations. The system uses flexure springs to suspend the piston in a cylinder leaving a narrow gap between them. The narrow gap acts as a dynamic seal between the fronts and back sides of the piston. Simulation calculations show that the mechanical resonator dissipates 40 % less acoustic power than the acoustic one. This will lead to more useful acoustic power output from the thermoacoustic Stirling-engine. In addition, the size of the system is reduced considerably.

Original languageEnglish
Title of host publicationASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting Collocated with 8th International Conference on Nanochannels, Microchannels, and Minichannels, FEDSM2010
Pages117-121
Number of pages5
DOIs
Publication statusPublished - 1 Dec 2010
Externally publishedYes
EventASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting, EFESM 2010 - Montreal, Canada
Duration: 1 Aug 20105 Aug 2010
Conference number: 3

Publication series

NameAmerican Society of Mechanical Engineers, Fluids Engineering Division (Publication) FEDSM
Volume2
ISSN (Print)0888-8116

Conference

ConferenceASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting, EFESM 2010
Abbreviated titleEFESM
CountryCanada
CityMontreal
Period1/08/105/08/10
OtherCollocated with 8th International Conference on Nanochannels, Microchannels, and Minichannels

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  • Cite this

    Tijani, M. E. H., Vanapalli, S., & Spoelstra, S. (2010). Design of a mechanical resonator to be coupled to a thermoacoustic stirling-engine. In ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting Collocated with 8th International Conference on Nanochannels, Microchannels, and Minichannels, FEDSM2010 (pp. 117-121). (American Society of Mechanical Engineers, Fluids Engineering Division (Publication) FEDSM; Vol. 2). https://doi.org/10.1115/FEDSM-ICNMM2010-31151