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| Presentation | 2007-11-29 14:00 A study on thermoacoustic cooling system for practical use -- Applying membrane for driving loop-tube by low temperature difference -- Masahiro Nishikawa, Shin-ichi Sakamoto, Kohei Hotta, Yoshiaki Watanabe (Doshisha Univ.)  US2007-77 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | In this report, we inserted membrane into loop-tube type thermoacoustic cooling system for the purpose of driving by low temperature. At first, we focused on variation of temperature difference between top and bottom of a stack that position of membrane caused under certain input heat energy. Close distance between membrane and the stack meant high energy conversion efficiency from heat to sound and enabled to drive loop-tube by low temperature difference. The reasons were adjustment of phase difference between pressure and particle velocity at prime mover and decrease of viscous resistance in a stack channel. Next, we focused on lowering input heat energy with membrane at the certain position. It caused shift of phase difference distribution. One of the reasons was that stack’s effect as boundary condition became weak by temperature decrease of top of stack and it made viscous boundary layer thinner. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Thermoacoustics / Loop-tube / Waste heat / Membrane / Phase difference between P and U / Sound Intensity / Viscous boundary layer / | |
| Reference Info. | IEICE Tech. Rep., vol. 107, no. 357, US2007-77, pp. 13-18, Nov. 2007. | |
| Paper # | US2007-77 | |
| Date of Issue | 2007-11-22 (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 | US2007-77 |
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| Conference Information | |
| Committee | US |
| Conference Date | 2007-11-29 - 2007-11-29 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Shizuoka Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | General |
| Paper Information | |
| Registration To | US |
| Conference Code | 2007-11-US |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A study on thermoacoustic cooling system for practical use |
| Sub Title (in English) | Applying membrane for driving loop-tube by low temperature difference |
| Keyword(1) | Thermoacoustics |
| Keyword(2) | Loop-tube |
| Keyword(3) | Waste heat |
| Keyword(4) | Membrane |
| Keyword(5) | Phase difference between P and U |
| Keyword(6) | Sound Intensity |
| Keyword(7) | Viscous boundary layer |
| Keyword(8) | |
| 1st Author's Name | Masahiro Nishikawa |
| 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 | Kohei Hotta |
| 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 | 2007-11-29 14:00:00 |
| Presentation Time | 30 minutes |
| Registration for | US |
| Paper # | US2007-77 |
| Volume (vol) | vol.107 |
| Number (no) | no.357 |
| Page | pp.13-18 |
| #Pages | 6 |
| Date of Issue | 2007-11-22 (US) |
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