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Resonance control of coaxial-type thermoacoustic system by an additional stack

机译：额外堆叠同轴型热声系统的共振控制

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摘要

A coaxial-type thermoacoustic system (coaxial type) has the potential to solve the problem of the practical use of downsizing while keeping high efficiency. However, when a prime mover (PM) is set close to the antinode of the sound pressure distribution, the performance of the coaxial type is degraded due to the shift of the resonance mode. In the present paper, resonance control is experimentally investigated to improve the performance of the coaxial type. On the basis of sound pressure distributions, the setting position to suppress the excitation of the secondary mode is predicted and resonance mode control with an additional PM is attempted. As a result, resonance control is successfully attained and the sound pressure is enhanced compared with the system with a single PM. The oscillation temperature is also lowered by more than 200 degrees C, and an improvement of performance is confirmed. (C) 2020 The Japan Society of Applied Physics
机译：同轴型热声系统（同轴型）有可能解决缩小尺寸的实际使用问题，同时保持高效率。然而，当将原动机（PM）靠近声压分布的抗灰膜被设定时，由于谐振模式的偏移，同轴型的性能降低。在本文中，实验研究共振控制以改善同轴型的性能。在声压分布的基础上，预测要抑制次要模式激励的设定位置并尝试额外PM的谐振模式控制。结果，成功实现了共振控制，与单个PM的系统相比，能够增强声压。振荡温度也降低超过200摄氏度，确认了性能的提高。 （c）2020日本应用物理学会

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  • 来源
    《Japanese journal of applied physics》 |2020年第sk期|SKKD10.1-SKKD10.6|共6页
  • 作者

    Onishi Riku; Sakamoto Shin-ichi; Shiraki Kazuki; Kuroki Daichi; Watanabe Yoshiaki;

  • 作者单位

    Doshisha Univ Grad Sch Sci & Engn Kyotanabe Kyoto 6100321 Japan;

    Univ Shiga Prefecture Dept Elect Syst Engn Hikone Shiga 5228533 Japan;

    Doshisha Univ Grad Sch Sci & Engn Kyotanabe Kyoto 6100321 Japan;

    Doshisha Univ Grad Sch Life & Med Sci Kyotanabe Kyoto 6100321 Japan;

    Doshisha Univ Grad Sch Life & Med Sci Kyotanabe Kyoto 6100321 Japan;

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