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Paper Abstract and Keywords
Presentation 2008-01-29 11:40
A study on loop-tube type thermoacoustic cooling system for practical use -- Applying diverging tube for driving loop-tube by low temperature difference --
Takahiro Ishino, Shin-ichi Sakamoto, Yoshiaki Watanabe (Doshisha Univ.) US2007-100
Abstract (in Japanese) (See Japanese page) 
(in English) In this report, a design method of loop-tube type thermoacoustic cooling system with diverging tube for the low temperature driving is proposed. At first, We focus on sound field within a loop-tube and temperature of top of a prime mover stack when position of diverging tube was changed. Experimental conditions were certain input heat energy and temperature of bottom of a stack. As results, position of diverging tube was adjusted, energy conversion efficiency from the heat energy to sound energy was increased. In addition, temperature of top of a prime mover stack was decreased about 500 degrees C, from 845 degrees C to 345 degrees C, compared with no-diverging tube. It was considered that phase difference between pressure and particle velocity at a prime mover stack was improved. Next, We focus on sound field with and without diverging tube when input heat energy was changed. The system with diverging tube was driven by low input energy, because energy conversion efficiency was increased.
Keyword (in Japanese) (See Japanese page) 
(in English) Thermoacoustics / Loop-tube / Diverging tube / Phase difference between sound pressure and particle velocity / Sound intensity / Viscous boundary layer / /  
Reference Info. IEICE Tech. Rep., vol. 107, no. 468, US2007-100, pp. 23-28, Jan. 2008.
Paper # US2007-100 
Date of Issue 2008-01-22 (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 US2007-100

Conference Information
Committee EA US  
Conference Date 2008-01-28 - 2008-01-29 
Place (in Japanese) (See Japanese page) 
Place (in English) Kansai University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) General 
Paper Information
Registration To US 
Conference Code 2008-01-EA-US 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A study on loop-tube type thermoacoustic cooling system for practical use 
Sub Title (in English) Applying diverging tube for driving loop-tube by low temperature difference 
Keyword(1) Thermoacoustics  
Keyword(2) Loop-tube  
Keyword(3) Diverging tube  
Keyword(4) Phase difference between sound pressure and particle velocity  
Keyword(5) Sound intensity  
Keyword(6) Viscous boundary layer  
Keyword(7)  
Keyword(8)  
1st Author's Name Takahiro Ishino  
1st Author's Affiliation Doshisha University (Doshisha Univ.)
2nd Author's Name Shin-ichi Sakamoto  
2nd Author's Affiliation Doshisha University (Doshisha Univ.)
3rd Author's Name Yoshiaki Watanabe  
3rd Author's Affiliation Doshisha University (Doshisha Univ.)
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Speaker Author-1 
Date Time 2008-01-29 11:40:00 
Presentation Time 30 minutes 
Registration for US 
Paper # US2007-100 
Volume (vol) vol.107 
Number (no) no.468 
Page pp.23-28 
#Pages 6 
Date of Issue 2008-01-22 (US) 

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