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| Presentation | 2013-01-24 18:10 Experimental study on acoustic characteristics of Phase Adjuster in thermoacoustic systems Yuichiro Orino, Shin-ichi Sakamoto, Yoshitaka Inui, Takumi Ikenoue (Univ. of Shiga Pref.), Yoshiaki Watanabe (Doshisha Univ.)  US2012-99 EA2012-130 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | For improving sound and thermal energy conversion efficiency of loop-tube-type thermoacoustic systems, we have proposed the use of additional structure placed in the tube, namely "Phase Adjuster" (PA). In this study, for the purpose of making it possible to design thermoacoustic systems using PA, acoustic characteristics of PA for standing-wave field in the closed-end circular tube was studied by experiments and analyses. Based on Rott's equations, distributions of sound pressure, volume velocity, and sound power flow were analyzed from measured sound pressure by two pressure sensor pairs for both circular-tube areas divided by PA. Comparing analyzed distributions with estimated total sound field, calculated by using a simple linear model of PA and measured sound pressure at the closed end, reveals notable nonlinear sound power loss by PA for larger sound amplitudes, which is proportional to the cubic of the particle velocity. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | thermoacoustic systems / Phase Adjuster / linear model / standing wave field / sound power loss / nonlinearity / / | |
| Reference Info. | IEICE Tech. Rep., vol. 112, no. 387, US2012-99, pp. 63-67, Jan. 2013. | |
| Paper # | US2012-99 | |
| Date of Issue | 2013-01-17 (US, EA) | |
| ISSN | Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 | |
| Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| Download PDF | US2012-99 EA2012-130 |
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| Conference Information | |
| Committee | US EA |
| Conference Date | 2013-01-24 - 2013-01-25 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Kambaikan, Doshisha Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | [Joint Meeting on Acoustics and Ultrasonics Subsociety] Engineering/Electro Acoustics, Ultrasonic and Underwater Acoustics，and Related Topics |
| Paper Information | |
| Registration To | US |
| Conference Code | 2013-01-US-EA |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Experimental study on acoustic characteristics of Phase Adjuster in thermoacoustic systems |
| Sub Title (in English) | |
| Keyword(1) | thermoacoustic systems |
| Keyword(2) | Phase Adjuster |
| Keyword(3) | linear model |
| Keyword(4) | standing wave field |
| Keyword(5) | sound power loss |
| Keyword(6) | nonlinearity |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Yuichiro Orino |
| 1st Author's Affiliation | University of Shiga Prefecture (Univ. of Shiga Pref.) |
| 2nd Author's Name | Shin-ichi Sakamoto |
| 2nd Author's Affiliation | University of Shiga Prefecture (Univ. of Shiga Pref.) |
| 3rd Author's Name | Yoshitaka Inui |
| 3rd Author's Affiliation | University of Shiga Prefecture (Univ. of Shiga Pref.) |
| 4th Author's Name | Takumi Ikenoue |
| 4th Author's Affiliation | University of Shiga Prefecture (Univ. of Shiga Pref.) |
| 5th Author's Name | Yoshiaki Watanabe |
| 5th Author's Affiliation | Doshisha University (Doshisha Univ.) |
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| Speaker | Author-1 |
| Date Time | 2013-01-24 18:10:00 |
| Presentation Time | 20 minutes |
| Registration for | US |
| Paper # | US2012-99, EA2012-130 |
| Volume (vol) | vol.112 |
| Number (no) | no.387(US), no.388(EA) |
| Page | pp.63-67 |
| #Pages | 5 |
| Date of Issue | 2013-01-17 (US, EA) |
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