Presentation 2010-01-25
Basic study for silencer by using thermoacoustic phenomenon : Approaches to silencing efficiency increase by multistage stack method
Daichi TSUKAMOTO, Shin-ichi SAKAMOTO, Tetsuya KOBAYASHI, Yoshiaki WATANABE,
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Abstract(in English) We suggest a silencer for using thermoacoustic phenomenon of energy conversion of heat energy and sound energy. Thermoacoustic silencer is new type silencer, because it attenuates sound energy for using heat energy. First, we measured basic property that thermal, frequency, and channel radius of stack. As a results, it was determinate that silencing effect was saturated by stack was applied over a temperature gradient. Multistage stack method was introduced to improve silence effect. So, we succeeded in increasing efficiency of energy conversion by separating heat energy into two parts. Finally, we investigated practicality of multistage stack method by measuring sound field under the condition of two stacks into resonance tube.
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Keyword(in English) Thermoacoustic phenomenon / Silencer / Multistage method / Stack / Low frequency wave
Paper # US2009-96,EA2009-104
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Committee EA
Conference Date 2010/1/18(1days)
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Language JPN
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Title (in English) Basic study for silencer by using thermoacoustic phenomenon : Approaches to silencing efficiency increase by multistage stack method
Sub Title (in English)
Keyword(1) Thermoacoustic phenomenon
Keyword(2) Silencer
Keyword(3) Multistage method
Keyword(4) Stack
Keyword(5) Low frequency wave
1st Author's Name Daichi TSUKAMOTO
1st Author's Affiliation Faculty of Engineering, Doshisha University()
2nd Author's Name Shin-ichi SAKAMOTO
2nd Author's Affiliation Department of Electronic Systems Engineering, University of Shiga Prefecture
3rd Author's Name Tetsuya KOBAYASHI
3rd Author's Affiliation Faculty of Engineering, Doshisha University
4th Author's Name Yoshiaki WATANABE
4th Author's Affiliation Faculty of Life and Medical Sciences, Doshisha University
Date 2010-01-25
Paper # US2009-96,EA2009-104
Volume (vol) vol.109
Number (no) 389
Page pp.pp.-
#Pages 6
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