| 改进型驻波热声发动机的实验研究 |
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| 引用本文： | 戴巍,罗二仓,胡剑英,张泳,吴张华,黄云.改进型驻波热声发动机的实验研究[J].工程热物理学报,2005,26(3):376-378. |
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| 作者姓名： | 戴巍 罗二仓 胡剑英 张泳 吴张华 黄云 |
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| 作者单位： | 中国科学院理化技术研究所,北京,100080;中国科学院理化技术研究所,北京,100080;中国科学院研究生院,北京,100039 |
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| 基金项目： | 中国科学院知识创新工程项目 |
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| 摘 要： | 压比是热声发动机性能的一个重要衡量参数。驻波发动机由于自身热力过程的不可逆性,使得目前所能获得的压比通常都比较低。笔者认为除了发动机各部件的尺寸参数之外,换热器的换热性能也是影响发动机压比的一个重要参数。因此本文对驻波热声发动机的换热器进行了改进设计,增强了加热器与工作介质的换热效果,系统的工作压比有了较大的提高。采用氦气、氮气和二氧化碳作为工质,其压比分别达到了1.15、1.22和1.215。
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| 关 键 词： | 驻波发动机 换热器 板叠 |
| 文章编号： | 0253-231X(2005)03-0376-03 |
| 修稿时间： | 2004年11月25 |
EXPERIMENTAL STUDY OF AN IMPROVED STANDING WAVE THERMOACOUSTIC ENGINE |
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| DAI Wei,LUO Er-Cang,HU Jian-Ying,ZHANG Yong,WU Zhang-Hua,HUANG Yun.EXPERIMENTAL STUDY OF AN IMPROVED STANDING WAVE THERMOACOUSTIC ENGINE[J].Journal of Engineering Thermophysics,2005,26(3):376-378. |
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| Authors: | DAI Wei LUO Er-Cang HU Jian-Ying ZHANG Yong WU Zhang-Hua HUANG Yun |
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| Abstract: | Pressure ratio is an importance parameter for evaluating the performance of a thermoa-coustic engine. Because of its intrinsic thermodynamic irreversibility, the pressure ratio provided by a standing wave thermoacoustic engine is generally rather low. The authors think the heat exchangers also play an important part in the performance of the engine. In this paper, the heat exchanger design is unproved by using electric discharge machining, which in turn improves the system performance. By using helium, nitrogen and carbon dioxide as the working gas, the standing wave thermoacoustic engine's pressure ratio reaches 1.15, 1.22, and 1.21 respectively. |
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| Keywords: | standing wave engine heat exchanger stack |
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