福建农林大学学报（自然科学版）2015，Vol.44Issue(6)：646-650,5.DOI:10.13323/j.cnki.j.fafu(nat.sci.).2015.06.015
木材热物理参数理论表达式的推导及其计算值与实测值比较
Derivation of a new expression for wood thermophysics parameters and comparison to experimental value
摘要
Abstract
Theoretical equations, derived from statistical thermodynamics and analogy, were used to calculate specific heat, thermal conductivity and thermal diffusivity of 28 types of wood. Then the results were compared with experimental values to verify the accu-racy of the new equations. Results showed that mean errors for above-mentioned parameters were 2.6%, 5.7% and 6.7% respective-ly, and maximum errors were 8.0%, 12.8% and 12.5% respectively. These data were all less than results from empirical equations. Different from empirical Maclean and Gu-Audrey equations that were based on experimental results mostly, derivation method that combines microscopic and macroscopic theories may be applied in other parameter prediction and subjects.关键词
木材/热物理参数/理论表达式/统计热力学/类比推理法Key words
wood/thermal physical parameters/theoretical expression/statistical thermodynamics/analogical reasoning method分类
农业科技引用本文复制引用
林铭,杨庆贤,饶久平,谢拥群,廖益强,魏微..木材热物理参数理论表达式的推导及其计算值与实测值比较[J].福建农林大学学报（自然科学版）,2015,44(6):646-650,5.基金项目
国家自然科学基金资助项目(30271057). （30271057）
