• 论文及研究报告 •

### 木材横纹导热系数的类比法研究

1. 福建农林大学,福州350002
• 收稿日期:2003-06-10 修回日期:1900-01-01 出版日期:2005-01-25 发布日期:2005-01-25

### Study on Wood Thermal Conductivity in Transverse Direction by Analogism

Chen Ruiying,Xie Yongqun,Yang Qingxian,Liao Yiqiang,Lin Jinguo

1. Fujian Agriculture and Forestry University Fuzhou350002
• Received:2003-06-10 Revised:1900-01-01 Online:2005-01-25 Published:2005-01-25

Abstract:

Similarity of some properties between thermal conductivity and electricity conductivity was analyzed in this paper.Analogism reasoning was applied to infer that thermal conductivity had some properties of electricity conductivity. Therefore, thermal conductivity could be defined by definition formula similar to that of electricity conductivity, which thermal conductivity was the reciprocal of heat resistance per unit length and per unit cross section area of wood. The theoretical formula of wood thermal conductivity in transverse direction was inferred by cylinder model based on the cell structure of the wood. With the formula derived, the theoretical values of thermal conductivity in transverse direction for 20 tree species were calculated and comparison was also made to the experimental values under the same conditions. The results showed that the theoretical values of thermal conductivity is fairly identical to their experimental values, which the maximum error is 14.1% and mean error is less than 7%. The conclusion provided a feasible method to study thermal properties of wood theoretically.

Key words: thermal conductivity, wood, analogism