摘要
本文从木材的微观结构出发,应用统计热力学的基本原理,推导出木材比热的理论表达式及其简化计算公式:C_0=0.2801+0.001581t.应用该式对27种不同树种的木材进行实际计算,并与相同条件下的实验值比较,理论计算最大误差不超过11%,平均误差在5%以内.
In this paper, the theoretical expression of the specific heat of wood is derived on the microstructure of wood by applying some basical principles in statistical thermodynamics and further simplified as follows:C_0 =0.2801+0.001581t Then, the specific heat of 27 species of trees with different moisture contents and temperature is calculated by the formula. Compared with the experimental value in the same condition the calculation result is less than 11% with maximum error, the average error within 5%. It is obvious the agreement between the both value is very good.
基金
福建省自然科学基金
