| Presentation | 2009-01-30 A loop-tube-type thermoacoustic cooling system for a practical use : To control the sound field in the loop tube, by applying phase adjuster SHINTARO Komiya, Shin-ichi SAKAMOTO, Takahiro ISHINO, Atsushi SAKAGUCHI, Yoshiaki WATANABE, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We proposed a phase adjuster as one of device to improve energy conversion efficiency of a thermoacoustic prime mover in a loop-tube. We have to measure a sound pressure and a particle velocity in prime mover for understanding mechanism of the phase adjuster, but measurement of those in prime mover is impossible. Therefore, in this report, we measured a sound field of the loop-tube in detail, when we set four different diameter of phase adjusters in the loop-tube. As results, it is regarded that the phase adjuster of inner diameter 34.5mm, 26.5mm are not changed the distribution of the sound pressure and the particle velocity in the loop-tube, but its of inner diameter 18.5mm, 10.5mm are changed those in loop-tube. In addition, it is confirmed that the maximum value of a phase difference between sound pressure and particle velocity decreases in the loop-tube with reduction of inner diameter on phase adjuster. It is considered that traveling wave component of sound wave increases. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Thermoacoustic phenomenon / Loop-tube / Phase adjuster / Sound field / Phase difference between sound pressure and particle velocity |
| Paper # | US2008-85,EA2008-129 |
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| Committee | EA |
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| Conference Date | 2009/1/22(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Engineering Acoustics (EA) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A loop-tube-type thermoacoustic cooling system for a practical use : To control the sound field in the loop tube, by applying phase adjuster |
| Sub Title (in English) | |
| Keyword(1) | Thermoacoustic phenomenon |
| Keyword(2) | Loop-tube |
| Keyword(3) | Phase adjuster |
| Keyword(4) | Sound field |
| Keyword(5) | Phase difference between sound pressure and particle velocity |
| 1st Author's Name | SHINTARO Komiya |
| 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 | Takahiro ISHINO |
| 3rd Author's Affiliation | Faculty of Engineering, Doshisha University |
| 4th Author's Name | Atsushi SAKAGUCHI |
| 4th Author's Affiliation | Faculty of Engineering, Doshisha University |
| 5th Author's Name | Yoshiaki WATANABE |
| 5th Author's Affiliation | Faculty of Life and Medical Sciences, Doshisha University |
| Date | 2009-01-30 |
| Paper # | US2008-85,EA2008-129 |
| Volume (vol) | vol.108 |
| Number (no) | 411 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |