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Paper Abstract and Keywords
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
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. (No. 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
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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) 
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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
Date Time 2019-12-11 15:00:00 
Presentation Time 25 
Registration for US 
Paper # IEICE-US2019-67 
Volume (vol) IEICE-119 
Number (no) no.332 
Page pp.15-18 
#Pages IEICE-4 
Date of Issue IEICE-US-2019-12-04 


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