| Presentation | 2020-01-22 [Poster Presentation] Study on resonance control in a coaxial thermoacoustic system. Riku Onishi, Shin-ichi Sakamoto, Yuto Kawashima, Daichi Kuroki, Kazuki Shiraki, Yoshiaki Watanabe, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Thermoacoustic system is characterized by an external combustion engine with a simple and inexpensive structure, which has the potential to use unused energy such as factory exhaust heat and sunlight at low cost. The present group is studying the coaxial type thermoacoustic system (coaxial type) for miniaturization of the thermoacoustic system. The coaxial type is capable of energy conversion in traveling wave phase with high energy conversion efficiency and considered to be advantageous for miniaturization compared to the loop tube type because of its linear shape. In this report, we investigated resonance control by adding a coaxial prime mover (PM). Confirming the resonance transition to the secondary mode, which was cited as the cause of the decrease in the cooling performance of the coaxial type, and then the PM installation position where the secondary mode can be suppressed based on the observed secondary mode sound pressure distribution Predicted. The installation position of the additional PM was changed and the effect on resonance control was experimentally investigated. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Thermoacoustic phenomenon / Coaxial system / Sound pressure distribution / Resonance control / Resonance mode |
| Paper # | US2019-83 |
| Date of Issue | 2020-01-15 (US) |
| Conference Information | |
| Committee | EA / US |
|---|---|
| Conference Date | 2020/1/22(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Doshisha Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | [Joint Meeting on Acoustics and Ultrasonics Subsociety] Engineering/Electro Acoustics, Ultrasonics, and Related Topics |
| Chair | Kenichi Furuya(Oita Univ.) / Jun Kondo(Shizuoka Univ.) |
| Vice Chair | Suehiro Shimauchi(Kanazawa Inst. of Tech.) / Shigeto Takeoka(Shizuoka Inst. of Science and Tech.) / Shinichi Takeuchi(Toin Univ. of Yokohama) / Hikaru Miura(Nihon Univ.) |
| Secretary | Suehiro Shimauchi(NHK) / Shigeto Takeoka(Univ. of Tokyo) / Shinichi Takeuchi(Kanagawa Univ.) / Hikaru Miura(Doshisha Univ.) |
| Assistant | Keisuke Imoto(Ritsumeikan Univ.) / Daisuke Morikawa(Toyama Pref Univ.) / Mototaka Arakawa(Tohoku Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Engineering Acoustics / Technical Committee on Ultrasonics |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | [Poster Presentation] Study on resonance control in a coaxial thermoacoustic system. |
| Sub Title (in English) | Examination of additional prime mover installation position based on sound field calculation model |
| Keyword(1) | Thermoacoustic phenomenon |
| Keyword(2) | Coaxial system |
| Keyword(3) | Sound pressure distribution |
| Keyword(4) | Resonance control |
| Keyword(5) | Resonance mode |
| 1st Author's Name | Riku Onishi |
| 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 | Yuto Kawashima |
| 3rd Author's Affiliation | Doshisha University(Doshisha Univ.) |
| 4th Author's Name | Daichi Kuroki |
| 4th Author's Affiliation | Doshisha University(Doshisha Univ.) |
| 5th Author's Name | Kazuki Shiraki |
| 5th Author's Affiliation | Doshisha University(Doshisha Univ.) |
| 6th Author's Name | Yoshiaki Watanabe |
| 6th Author's Affiliation | Doshisha University(Doshisha Univ.) |
| Date | 2020-01-22 |
| Paper # | US2019-83 |
| Volume (vol) | vol.119 |
| Number (no) | US-374 |
| Page | pp.pp.73-76(US), |
| #Pages | 4 |
| Date of Issue | 2020-01-15 (US) |