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

M. E.H. Tijani; Srinivas Vanapalli; Simon Spoelstra

doi:10.1115/FEDSM-ICNMM2010-31151

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 proceeding › Conference contribution › Academic › peer-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 language	English
Title of host publication	ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting Collocated with 8th International Conference on Nanochannels, Microchannels, and Minichannels, FEDSM2010
Pages	117-121
Number of pages	5
DOIs	https://doi.org/10.1115/FEDSM-ICNMM2010-31151
Publication status	Published - 1 Dec 2010
Externally published	Yes
Event	ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting, EFESM 2010 - Montreal, Canada Duration: 1 Aug 2010 → 5 Aug 2010 Conference number: 3

Publication series

Name	American Society of Mechanical Engineers, Fluids Engineering Division (Publication) FEDSM
Volume	2
ISSN (Print)	0888-8116

Conference

Conference	ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting, EFESM 2010
Abbreviated title	EFESM
Country/Territory	Canada
City	Montreal
Period	1/08/10 → 5/08/10
Other	Collocated with 8th International Conference on Nanochannels, Microchannels, and Minichannels

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10.1115/FEDSM-ICNMM2010-31151

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

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

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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.",

author = "Tijani, {M. E.H.} and Srinivas Vanapalli and Simon Spoelstra",

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Tijani, MEH, 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. American Society of Mechanical Engineers, Fluids Engineering Division (Publication) FEDSM, vol. 2, pp. 117-121, ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting, EFESM 2010, Montreal, Quebec, Canada, 1/08/10. https://doi.org/10.1115/FEDSM-ICNMM2010-31151

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

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

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N2 - 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.

AB - 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.

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Tijani MEH, Vanapalli S, Spoelstra S. 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. 2010. p. 117-121. (American Society of Mechanical Engineers, Fluids Engineering Division (Publication) FEDSM). doi: 10.1115/FEDSM-ICNMM2010-31151

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

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