Control of self-excitation mode in thermoacoustic system using heat phase adjuster

被引：13

作者：

Kido, Aiko ^{[1
]}

Sakamoto, Shin-ichi ^{[2
]}

Taga, Kazusa ^{[1
]}

Watanabe, Yoshiaki ^{[1
]}

机构：

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

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

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS | 2016年 / 55卷 / 07期

关键词：

COOLING SYSTEM; PRIME MOVER; ENGINE; TUBE; STACK;

D O I：

10.7567/JJAP.55.07KE14

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The capability of a heat phase adjuster (HPA) to control the resonance mode in a loop-tube-type thermoacoustic system by locally heating the outside is experimentally investigated. It is shown that the HPA enables the resonance mode of the tube to shift to lower modes with higher thermoacoustic conversion efficiency, thus significantly enhancing the energy conversion efficiency. The transition of the resonance mode due to the stepwise change in the input electric power to the HPA is also investigated. As a result, it is demonstrated that the resonance mode changes with the temperature and a threshold exists for the HPA temperature at which the transition is induced. These results suggest the possibility of externally controlling a loop-tube-type thermoacoustic system. (C) 2016 The Japan Society of Applied Physics

引用

页数：3

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