| 接触热阻对高温换热设备管口区温度分布的影响 |
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| 引用本文： | 李隆键,张洪济.接触热阻对高温换热设备管口区温度分布的影响[J].重庆大学学报(自然科学版),1994,17(1):40-45. |
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| 作者姓名： | 李隆键 张洪济 |
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| 作者单位： | 重庆大学热力工程系 |
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| 摘 要： | 对高温换热设备管口区的传热进行了深入的分析。采用有限差分数值分析方法着重研究了管口区域内换热管与管板胀接面上接触热阻对管口区传热的影响，得到了管口区中的温度分布，并进行了相应的传热机理分析；还与未来考虑接触热阻时的计算结果进行了比较。
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| 关 键 词： | 换热器 热传导方程 接触热阻 |
The Effect of Contact Thermal Resistance on Temperature Distribution in the Tube-Mouth Region of High Temperature Heat Exchange Equipment |
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| Li Longjian,Zhang Hongji.The Effect of Contact Thermal Resistance on Temperature Distribution in the Tube-Mouth Region of High Temperature Heat Exchange Equipment[J].Journal of Chongqing University(Natural Science Edition),1994,17(1):40-45. |
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| Authors: | Li Longjian Zhang Hongji |
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| Institution: | Li Longjian;Zhang Hongji |
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| Abstract: | Heat transfer in the tube-mouth region of high temporature heat exchangeequipment was further analysed. The finite difference method(FDM)was employed for investigat-ing emphatically the effects of contact thermal resistance on heat transfer.Temperature distributionin the tube-mouth region with the different contact thermal resistance was found.The computation-al results were compared with that which were obtained with no contact thermal resistance,and thecorresponding heat transfer mechanism was fully analysed. |
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| Keywords: | high temperature heat exchanger heat conduction composite material con-tact thermal resistance numerical analysis |
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