| Presentation | 2016-04-18 A study for the establishment of a design approach in looped-tube thermoacoustic system using Phase Adjuster Sho Kawaminami, Shin-ichi Sakamoto, Kazusa Taga, Yoshiaki Watanabe, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | A cooling system can be realized by using the thermoacoustic phenomena deriving with the unused energy such as a waste heat. Few practical examples exist because of its low cooling efficiency. To improve the low efficiency, a phase adjuster (PA) has been introduced as a technique to enhance the energy conversion efficiency. However, the mechanism of the PA is still unclear. To discuss the mechanism of the PA, the physical model of PA is proposed in this paper. The sound field generated in the acoustic tube at various modes dependent on the setting position of the PA is theoretically estimated. By the changing of the PA position, the sound filed at each mode generated by the loudspeaker are observed, then the results are compared with the estimated ones. Finally, as an actual model, the looped-tube thermoacoustic system is applied as in the sound driver instead of the loudspeaker. Compare the observation results between sound field and the position of the PA. The capability of control for the selection of the resonance mode due to the setting position of the PA is demonstrated for the thermoacoustic system. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Thermoacoustic phenomenon / Phase Adjuster / Physical model / Resonance mode |
| Paper # | US2016-8 |
| Date of Issue | 2016-04-11 (US) |
| Conference Information | |
| Committee | US |
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| Conference Date | 2016/4/18(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Nishi-Waseda Campus, Waseda University |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Nonlinear Acoustics, General, etc (Co-sponsored by Nonlinear Acoustics Society of Japan ) |
| Chair | Youichi Ito(Nihon Univ.) |
| Vice Chair | Mami Matsukawa(Doshisha Univ.) / Nobuyuki Endoh(Kanagawa Univ.) |
| Secretary | Mami Matsukawa(Univ. of Electro-Comm.) / Nobuyuki Endoh(Univ. of Electro-Comm.) |
| Assistant | Hideyuki Hasegawa(Univ. of Toyama) |
| Paper Information | |
| Registration To | Technical Committee on Ultrasonics |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A study for the establishment of a design approach in looped-tube thermoacoustic system using Phase Adjuster |
| Sub Title (in English) | |
| Keyword(1) | Thermoacoustic phenomenon |
| Keyword(2) | Phase Adjuster |
| Keyword(3) | Physical model |
| Keyword(4) | Resonance mode |
| 1st Author's Name | Sho Kawaminami |
| 1st Author's Affiliation | Doshisha University(Doshisha Univ.) |
| 2nd Author's Name | Shin-ichi Sakamoto |
| 2nd Author's Affiliation | University of Shiga Prefecture(Univ. of Shiga Pref.) |
| 3rd Author's Name | Kazusa Taga |
| 3rd Author's Affiliation | Doshisha University(Doshisha Univ.) |
| 4th Author's Name | Yoshiaki Watanabe |
| 4th Author's Affiliation | Doshisha University(Doshisha Univ.) |
| Date | 2016-04-18 |
| Paper # | US2016-8 |
| Volume (vol) | vol.116 |
| Number (no) | US-5 |
| Page | pp.pp.41-46(US), |
| #Pages | 6 |
| Date of Issue | 2016-04-11 (US) |