| 稳态法测量热系数的计算方法改进研究 |
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| 引用本文： | 朱肖平,沈志强,康青,唐远林.稳态法测量热系数的计算方法改进研究[J].后勤工程学院学报,2009,25(5):85-87,92. |
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| 作者姓名： | 朱肖平 沈志强 康青 唐远林 |
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| 作者单位： | 1. 后勤工程学院基础部,重庆,400016
2. 后勤工程学院军事建筑工程系,重庆,400041 |
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| 摘 要： | 不良导体热系数测量普遍采用的是稳态法，但表面散热率的间接测量和样品侧面散热与漏热给测量带来一定误差，使得热系数实际测量值略微偏大。介绍了新的实验装置和实验数值计算方法，并且分析研究了样品边缘（侧面）热损失的物理模型，提出了新的数学模型和数据处理方法，纠正了这些偏差，与实验吻合较好。
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| 关 键 词： | 热传导 散热系数 传热率 误差 实验 模型 |
Study on the Improvement of Calculation of Steady State Measuring Thermal Conductivity of Poor Conductor |
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| ZHU Xiao-ping,SHEN Zhi-qiang,KANG Qing,TANG Yuan-lin.Study on the Improvement of Calculation of Steady State Measuring Thermal Conductivity of Poor Conductor[J].Journal of Logistical Engineering University,2009,25(5):85-87,92. |
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| Authors: | ZHU Xiao-ping SHEN Zhi-qiang KANG Qing TANG Yuan-lin |
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| Institution: | ZHU Xiao-ping ,SHEN Zhi-qiang ,KANG Qing ,TANG Yuan-lin ( 1. Dept. of Foundation Studies, LEU, Chongqing 400016, China; 2. Dept. of Architecture ＆ Civil Engineering, LEU, Chongqing 400041, China) |
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| Abstract: | Steady state measuring thermal conductivity of poor conductor is generally adopted. The indirect measure of convection heat dissipation rate and the dissipating heat of specimen flank cause errors and these errors make the real measure value of thermal conductivity a little larger than standard value. In this paper, a new experimental device and experimental means are recommended and a physical pattern for the dissipating heat of specimen flank is studied. New mathematical pattern and means of data processing are brought up to rectify these errors. Theoretical calculation by those means is in accord with the experimental results. |
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| Keywords: | heat insulator heat conductivity heat dissipation rate error experiment pattern |
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