| 木材弦向导温系数的理论研究 |
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| 引用本文： | 林金春.木材弦向导温系数的理论研究[J].西南林学院学报,2009,29(1):82-85. |
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| 作者姓名： | 林金春 |
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| 作者单位： | 福建农林大学,材料工程学院,福建,福州,350002 |
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| 摘 要： | 以细长中空的同轴圆柱体作为木材生物学细胞模型，以4个D吡喃葡萄糖基组成单斜晶系的晶胞作为木材纤维结构的微观模型，综合应用木材物理学、统计热力学和结构化学等多个学科的基础理论和方法，研究推导木材弦向导温系数的理论表达式，应用该表达式实际计算了24种不同树种的木材弦向导温系数，并与同条件下的实验值相比较，其结果为最大误差12．2％，平均误差7．1％。
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| 关 键 词： | 导温系数 理论表达式 木材 弦向 类比法 统计热力学 |
Theoretical Study on Wood Thermal Diffusivity in Tangential Direction |
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| LIN Jin-chun.Theoretical Study on Wood Thermal Diffusivity in Tangential Direction[J].Journal of Southwest Forestry College,2009,29(1):82-85. |
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| Authors: | LIN Jin-chun |
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| Institution: | LIN Jin-chun (College of Material Engineering, Fujian Forestry ＆ Agriculture University, Fuzhou Fujian 350002, China) |
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| Abstract: | The biological timber cell model was composed as a thin, long, hollow and coaxial cylinder, which was a microscopic model of monoclinic wood fiber structure consisted of four D-pyran glucose radical. Theoretical expression of wood thermal diffusivity in tangential direction was derived by integrating the theory and research methodology of wood physics, statistical thermodynamic, structural chemistry and many of disciplines. The theoretical values of wood thermal diffusivity coefficient of 24 tree species were calculated with the derived expression and the values were compared with the experimental values obtained under the same conditions, the maximum error was 12.2% and the average error was 7.1%. |
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| Keywords: | thermal diffusivity theoretical expression wood tangential direction analogy statistical thermodynamics |
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