| 高频斯特林热声发动机的工质特性研究 |
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| 引用本文： | 邢乐乐,康慧芳,郑宏飞,江钒,周刚.高频斯特林热声发动机的工质特性研究[J].低温工程,2011(5):1-5,36. |
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| 作者姓名： | 邢乐乐 康慧芳 郑宏飞 江钒 周刚 |
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| 作者单位： | 1. 北京理工大学机械与车辆工程学院北京 100081
2. 中国科学院理化技术研究所低温工程学重点实验室 北京 100190 |
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| 基金项目： | 国家教育部高等学校博士学科点专项科研基金资助课题(20101101120009);国家自然科学基金资助项目(51006009,10904154);北京市自然科学基金资助项目(3112021) |
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| 摘 要： | 搭建了一台高频斯特林热声发动机,分别采用N2、He、Ar和CO2作为工作介质,测量该系统在不同充气压力下的压力振幅和起振温度的变化,并引用了无量纲参数—操作因子和相对水力半径对实验数据进行分析.分析表明,当充气压力不高于1.95 MPa时,CO2的起振温度最低,且在相同的充气压力下He、Ar、N2和CO2的起振温度依次...
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| 关 键 词： | 起振温度 压力振幅 操作因子 相对水力半径 |
Research on characteristics of working fluid in high-frequency thermoacoustic Stirling engine |
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| Xing Lele,Kang Huifang,Zheng Hongfei,Jiang Fan,Zhou Gang.Research on characteristics of working fluid in high-frequency thermoacoustic Stirling engine[J].Cryogenics,2011(5):1-5,36. |
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| Authors: | Xing Lele Kang Huifang Zheng Hongfei Jiang Fan Zhou Gang |
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| Affiliation: | 1 School of Mechanical Engineering,Beijing Institute of Technology,Beijing 100081,China)(2 Key Laboratory of Cryogenics,Technical Institue of Physics and Chemistry,Chinese Academy of Sciences,Beijing 100190,China) |
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| Abstract: | A high-frequency thermoacoustic Stirling engine was set up,using N2,He,Ar and CO2 as the working medium respectively to measure the onset temperature of the system under different gas pressure.At the same time,two dimensionless parameters-operating factor and relative penetration thickness which have an effect on the pressure amplitude and onset temperature were cited.Data analysis shows that CO2 has the lowest onset temperature when the gas pressure is not higher than 1.95 MPa and the onset temperature of He,Ar,N2and CO2decreases gradually at the same gas pressure,however,the onset temperature of He is minimum when the gas pressure is higher than 1.95 MPa.Under similar relative penetration thickness,the onset temperatures of various working fluids are lowest and the pressure amplitude will be enhanced with the increase of operating factors and inflation pressure. |
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| Keywords: | onset temperature pressure amplitude operating factors relative penetration thickness |
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