| 新型热声谐振机构的理论分析和实验验证 |
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| 引用本文： | 满满,罗二仓,戴巍,吴张华.新型热声谐振机构的理论分析和实验验证[J].工程热物理学报,2010(6). |
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| 作者姓名： | 满满 罗二仓 戴巍 吴张华 |
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| 作者单位： | 中国科学院理化技术研究所低温工程学重点实验室;中国科学院研究生院; |
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| 基金项目： | 国家自然科学基金杰出青年资助项目(No.50625620);国家自然科学基金资助项目(No.50707034) |
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| 摘 要： | 谐振管作为热声发动机的重要组成部分,其长度占整个系统轴向长度的大部分。本文提出了一种利用液体和弹性膜组成谐振系统的方法,并使用这种谐振系统取代谐振管,使系统轴向尺寸减少为原来的1/5。文中利用线性热声理论对该谐振系统的谐振频率进行了计算,并对不同阻尼系数对系统的耗散做出了分析。实验结果表明,在利用驻波热声发动机驱动的情况下,谐振系统自激起振,谐振频率为360 Hz,实际谐振频率与计算值误差在5%以内。
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| 关 键 词： | 热声发动机 机械谐振 液体振子 |
THEORETICAL AND EXPERIMENTAL STUDY ON A NEW RESONATING MECHANISM IN THERMOACOUSTIC SYSTEM |
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| MAN Man LUO Er-Cang DAI Wei WU Zhang-Hua.THEORETICAL AND EXPERIMENTAL STUDY ON A NEW RESONATING MECHANISM IN THERMOACOUSTIC SYSTEM[J].Journal of Engineering Thermophysics,2010(6). |
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| Authors: | MAN Man LUO Er-Cang DAI Wei WU Zhang-Hua |
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| Institution: | MAN Man~(1,2) LUO Er-Cang~1 DAI Wei~1 WU Zhang-Hua~1 (1.Key Laboratory of Cryogenics,Technical Institute of Physics and Chemistry,Chinese Academy of Sciences,Beijing 100190,China,2.Graduate University of Chinese Academy of Sciences,Beijing 100049,China) |
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| Abstract: | The resonator tube is essential for the thermoacoustic engine,which occupies a large part of the entire system in length.A new resonating method composed with liquid and film is introduced in the paper to replace the resonator tube.This method can reduce the size of thermoacoustic system to 1/5 compared with before.By use of linear-thermoacoustic theory the frequency of the system is simulated as well as the dissipation in different resistance.A self-oscillation is observed in the experiment with a frequenc... |
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| Keywords: | thermoacoustic engine mechanical resonating liquid-resonator |
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