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| Presentation | 2019-12-11 15:00 Temperature change and enhancement of heat exchange in stack in standing-wave thermoacoustic system superimposed external sound wave Yuya Kurata (Doshisha Univ.), Shin-ichi Sakamoto (Univ. Shiga Pref.), Koto Hiramatsu, Yoshiaki Watanabe (Doshisha Univ.)  US2019-67 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | In a standing-wave thermoacoustic system in a self-excited oscillation state, the work flow generation amount of the stack is increased by superimposing the same frequency external sound wave on the sound wave in the system. At that time, it was confirmed that the temperature difference between both ends of the PM decreased. This is caused by the conversion from heat to sound waves being promoted and the heat energy stored in the stack being converted into sound waves. In this report, entropy generation in PM is focused on in order to discuss the relationship between the change in temperature at both ends of PM and the amplification of work flow generation. The energy conversion is evaluated by using ωτ. As a result, it is confirmed that, in the energy conversion process, by the superimposed sound wave, the standing-wave component can be effectively used, and the heat exchange between the fluid particle and the channel wall is activated. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Thermoacoustic phenomenon / Thermoacoustic cooling system / Superimposing sound wave / Entropy / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 119, no. 332, US2019-67, pp. 15-18, Dec. 2019. | |
| Paper # | US2019-67 | |
| Date of Issue | 2019-12-04 (US) | |
| 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 | US2019-67 |
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| Conference Information | |
| Committee | US |
| Conference Date | 2019-12-11 - 2019-12-11 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | US |
| Conference Code | 2019-12-US |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Temperature change and enhancement of heat exchange in stack in standing-wave thermoacoustic system superimposed external sound wave |
| Sub Title (in English) | |
| Keyword(1) | Thermoacoustic phenomenon |
| Keyword(2) | Thermoacoustic cooling system |
| Keyword(3) | Superimposing sound wave |
| Keyword(4) | Entropy |
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| 1st Author's Name | Yuya Kurata |
| 1st Author's Affiliation | Doshisha University (Doshisha Univ.) |
| 2nd Author's Name | Shin-ichi Sakamoto |
| 2nd Author's Affiliation | The University of Shiga Prefecture (Univ. Shiga Pref.) |
| 3rd Author's Name | Koto Hiramatsu |
| 3rd Author's Affiliation | Doshisha University (Doshisha Univ.) |
| 4th Author's Name | Yoshiaki Watanabe |
| 4th Author's Affiliation | Doshisha University (Doshisha Univ.) |
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| Speaker | Author-1 |
| Date Time | 2019-12-11 15:00:00 |
| Presentation Time | 25 minutes |
| Registration for | US |
| Paper # | US2019-67 |
| Volume (vol) | vol.119 |
| Number (no) | no.332 |
| Page | pp.15-18 |
| #Pages | 4 |
| Date of Issue | 2019-12-04 (US) |
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