| 热驱热声制冷耦合系统中波导管的声传输特性 |
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| 引用本文： | 张宁,胡忠军,李青,周刚.热驱热声制冷耦合系统中波导管的声传输特性[J].华中科技大学学报(自然科学版),2011,39(9):117-120. |
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| 作者姓名： | 张宁 胡忠军 李青 周刚 |
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| 作者单位： | 1. 华中科技大学能源与动力工程学院,湖北武汉,430074
2. 中国科学院理化技术研究所,北京,100190 |
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| 基金项目： | 国家自然科学基金资助项目(50906094) |
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| 摘 要： | 根据声传播规律和声场边界条件分析,在热声发动机和热声制冷机之间增加一段波导管,可以有效提高制冷机回热器的驱动声压,同时增加当地声阻抗,降低回热器平均振荡速度,减少黏性耗散.波导管传输特性的计算和分析表明：波导管的特征尺寸（包括特征长度和相对水力半径）是提高回热器声压和声阻抗的关键参数;相对水力半径和阻抗相角是影响波导管...
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| 关 键 词： | 热声 传输特性 波导管 热声制冷 耦合 声阻抗 |
Transmission characteristics of waveguides in heat driven therm-oacoustic refrigeration systems |
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| Zhang Ning Hu Zhongjun Li Qing Zhou Gang.Transmission characteristics of waveguides in heat driven therm-oacoustic refrigeration systems[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,2011,39(9):117-120. |
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| Authors: | Zhang Ning Hu Zhongjun Li Qing Zhou Gang |
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| Institution: | Zhang Ning1 Hu Zhongjun2 Li Qing2 Zhou Gang2(1 School of Energy and Power Engineering,Huazhong University of Science and Technology,Wuhan 430074,China,2 Technical Institute of Physics and Chemistry,Chinese Academy of Sciences,Beijing 100190,China) |
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| Abstract: | According to the acoustic transmission characters of the waveguides and the boundary condition of the acoustic field,the acoustic pressure and impedance of the refrigerators were effectively improved by adding a waveguide between the therm-oacoustic prime mover and the refrigerator.Calculation of the transmission character shows that the characteristic sizes of the waveguide namely the characteristic length and the relative hydraulic radius are the key parameters.The main factors affect the optimal characte... |
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| Keywords: | thermo-acoustic transmission characteristic waveguides thermo-acoustic refrigeration coupling acoustic impedance |
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