木材导温系数模型的研究  

The Model Research of Wood Thermal Diffusivity

作　　者：钟云志[1] 钟义山[1] 

机构地区：[1]西北农林科技大学图书馆,陕西杨陵712100

出　　处：《西北林学院学报》2003年第2期84-86,共3页Journal of Northwest Forestry University

摘　　要：研究了一定条件下木材导温系数与温度、含水率、密度及声速的相关关系,分别导出了弦向和径向导温系数的经验回归方程式。所得理论值和实际值平均相对误差不超过0.3%,相对误差绝对值平均不超过4.8%。The relationship between thermal diffusivity and temperature, moisture content, density and velocity of sound is studied. The experiment regression equations on the thermal diffusivity in the choral and redial direction were deduced. By comparing with the practical value, the average relative error of the theoretical values less than 0.3%, and average absolute value of relative error is less than 4.8%. 

关 键 词：木材 导温系数 经验回归方程式 热学性质 模型 

分 类 号：S781.37[农业科学—木材科学与技术]