Presentation 2020-01-22
[Poster Presentation] Study for the thermoacoustic system using moisture stack
Daichi Kuroki, Shi-ichi Sakamoto, Yuto Kawashima, Riku Onishi, Yoshiaki Watanabe,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) In order to clarify the driving principle of the two-phase fluid thermoacoustic engine, theoretical consideration was given to the energy generation in the wet regenerator. First, using Raspet's theory, a theoretical formula representing the generated energy in the wet regenerator was derived. Next, the effectiveness of the derived theoretical formula was confirmed by experiments. Furthermore, based on the derivation formula, the generated energy distribution in the wet regenerator and the energy generation ratio of air and water were derived using the measurement results of the temperature distribution inside the regenerator. As a result, (1) energy generation based on water phase change is prominent near the high temperature end of the regenerator, and (2) energy generation due to water phase change accounts for about 60% of the total generated energy of the two-phase fluid thermoacoustic engine. In order to realize low-temperature driving of a two-phase fluid thermoacoustic engine, it was found that system design that fully considers these factors is important.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Thermoacoustic system / Two-phase fluid / Wet stack
Paper # US2019-84
Date of Issue 2020-01-15 (US)

Conference Information
Committee EA / US
Conference Date 2020/1/22(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Doshisha Univ.
Topics (in Japanese) (See Japanese page)
Topics (in English) [Joint Meeting on Acoustics and Ultrasonics Subsociety] Engineering/Electro Acoustics, Ultrasonics, and Related Topics
Chair Kenichi Furuya(Oita Univ.) / Jun Kondo(Shizuoka Univ.)
Vice Chair Suehiro Shimauchi(Kanazawa Inst. of Tech.) / Shigeto Takeoka(Shizuoka Inst. of Science and Tech.) / Shinichi Takeuchi(Toin Univ. of Yokohama) / Hikaru Miura(Nihon Univ.)
Secretary Suehiro Shimauchi(NHK) / Shigeto Takeoka(Univ. of Tokyo) / Shinichi Takeuchi(Kanagawa Univ.) / Hikaru Miura(Doshisha Univ.)
Assistant Keisuke Imoto(Ritsumeikan Univ.) / Daisuke Morikawa(Toyama Pref Univ.) / Mototaka Arakawa(Tohoku Univ.)

Paper Information
Registration To Technical Committee on Engineering Acoustics / Technical Committee on Ultrasonics
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) [Poster Presentation] Study for the thermoacoustic system using moisture stack
Sub Title (in English) Energy generation ratio of air and water vapor
Keyword(1) Thermoacoustic system
Keyword(2) Two-phase fluid
Keyword(3) Wet stack
1st Author's Name Daichi Kuroki
1st Author's Affiliation Doshisha University(Doshisha Univ)
2nd Author's Name Shi-ichi Sakamoto
2nd Author's Affiliation University of Shiga Prefecture(Univ. of Shiga Pref.)
3rd Author's Name Yuto Kawashima
3rd Author's Affiliation Doshisha University(Doshisha Univ)
4th Author's Name Riku Onishi
4th Author's Affiliation Doshisha University(Doshisha Univ)
5th Author's Name Yoshiaki Watanabe
5th Author's Affiliation Doshisha University(Doshisha Univ)
Date 2020-01-22
Paper # US2019-84
Volume (vol) vol.119
Number (no) US-374
Page pp.pp.77-82(US),
#Pages 6
Date of Issue 2020-01-15 (US)