Publication:
Investigation of thermoacoustic muffler

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Authors
Che, Chun-Hua
Subjects
Muffler geometry
Thermoacoustic prime mover
Finite amplitude standing wave
Quality factor
Temperature difference
Advisors
Atchley, Anthony A.
Gaitan, Felipe
Date of Issue
1992-12
Date
December 1992
Publisher
Monterey, California: Naval Postgraduate School
Language
en_US
Abstract
The design, construction and testing of a thermoacoustic muffler is discussed. The performance of the muffler is characterized by its ability to reduce the quality factor Q of an acoustic resonator. Measurement of the Q of a helium filler muffler were made for temperature differences ranging from 0 to -130 degrees C. The measured Q-reduction, approximately 30%, agrees with predicted reductions. The predictions are based on a standing wave analysis of thermoacoustic engines published by Atchley (J. Acoust. Soc. Am. 92, 2907-2914 (1992)). These results indicate that Q-reduction is possible. Future work should concentrate on optimization, to determine if a thermoacoustic muffler is, in fact, practical.
Type
Thesis
Description
Series/Report No
Department
Engineering Acoustics Academic Committee
Organization
Naval Postgraduate School (U.S.)
Identifiers
NPS Report Number
Sponsors
Funder
Format
Citation
Distribution Statement
Approved for public release; distribution is unlimited.
Rights
Copyright is reserved by the copyright owner
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