Mechanism of the heat exchange promotion by superimposing the external sound wave in a standing-wave thermoacoustic system

被引：0

作者：

Hiramatsu, Koto ^{[1
]}

Sakamoto, Shin-ichi ^{[2
]}

Watanabe, Yoshiaki ^{[3
]}

机构：

[1] Doshisha Univ, Grad Sch Sci & Engn, Kyotanabe, Kyoto 6100321, Japan

[2] Univ Shiga Prefecture, Dept Elect Syst Engn, Hikone, Shiga 5228533, Japan

[3] Doshisha Univ, Grad Sch Life & Med Sci, Kyotanabe, Kyoto 6100321, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS | 2022年 / 61卷 / 05期

关键词：

thermoacoustic system; work flow; boundary layer; heat exchange area; COOLING SYSTEM; PRIME MOVER; TUBE; ENGINE; EFFICIENCY; RESONANCE; STACK;

D O I：

10.35848/1347-4065/ac4462

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

For improvement of energy conversion efficiency, a sound wave is superimposed with a loudspeaker to the working fluid in the stack. By using this method the work-flow generation of the stack was enhanced. To analyze this enhancement mechanism, the thickness of the boundary layer and the heat exchange area in the stack are calculated from the viewpoint of the heat exchange circumstance. The effect of the heat exchange circumstance on the particle displacement and thermal flow is investigated. As a result, it is confirmed that the superimposed sound wave improves the heat exchange circumstance and then the thermoacoustic phenomenon is enhanced.

引用

页数：8

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