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Paper Abstract and Keywords
Presentation 2008-12-19 14:30
A study on loop-tube type thermoacoustic cooling system for practical use -- The effect of installation positions and inner diameters of the diverging tube --
Takahiro Ishino (Doshisha Univ.), Shin-ichi Sakamoto (Univ. of Shiga pref.), Shintaro Komiya, Yoshiaki Watanabe (Doshisha Univ.) US2008-69
Abstract (in Japanese) (See Japanese page) 
(in English) In this report, a design method of loop-tube type thermoacoustic cooling system with diverging tube to improve energy conversion efficiency from heat energy to sound energy is proposed. We focus on sound field within a loop-tube when installations position and inner diameters of diverging tube is changed. Installation positions of diverging tube are changed near the top of the prime mover stack and center of loop tube of 1.65 m. Two kinds of inner diameters of 42 mm and 24 mm are used. From the experiment results, sound field was greatly different according to the installation positions of diverging tube. In setting up the diverging tube at antinode of particle velocity of the second wavelength resonance, first order resonance component and traveling wave phase were increased. In addition, it is considered that sound field was changed for boundary condition was changed by the kind of the inner diameters.
Keyword (in Japanese) (See Japanese page) 
(in English) Thermoacoustics / Loop-tube / Diverging tube / Installation positions and inner diameters / Phase difference between sound pressure and particle velocity / / /  
Reference Info. IEICE Tech. Rep., vol. 108, no. 364, US2008-69, pp. 13-18, Dec. 2008.
Paper # US2008-69 
Date of Issue 2008-12-12 (US) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
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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)
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Conference Information
Committee US  
Conference Date 2008-12-19 - 2008-12-19 
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 2008-12-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) The effect of installation positions and inner diameters of the diverging tube 
Keyword(1) Thermoacoustics  
Keyword(2) Loop-tube  
Keyword(3) Diverging tube  
Keyword(4) Installation positions and inner diameters  
Keyword(5) Phase difference between sound pressure and particle velocity  
Keyword(6)  
Keyword(7)  
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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 University of Shiga prefecture (Univ. of Shiga pref.)
3rd Author's Name Shintaro Komiya  
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 2008-12-19 14:30:00 
Presentation Time 30 minutes 
Registration for US 
Paper # US2008-69 
Volume (vol) vol.108 
Number (no) no.364 
Page pp.13-18 
#Pages 6 
Date of Issue 2008-12-12 (US) 

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