Summary
A model of wood drying under isothermal conditions taking into consideration coating of the surface
of a specimen is presented in this paper in a two-dimensional formulation. The influence of
the surface coating degree as well as geometrical shape of a wood specimen on the dynamics of
drying is investigated. Exponentials, describing the dependence of the halfdrying time on the degree
of coating of the edges, as well as on the ratio of the width to the thickness of the transverse
section of specimens from the northern red oak (Quercus rubra), are presented for drying from
above the fiber saturation point. This paper describes the conditions of usage of the two-dimensional
moisture transfer model in contrast to the one-dimensional model for accurate prediction of
the drying process taking into consideration the coating of edges of specimens having a rectangular
transverse section. A measure of reliability of the one-dimensional model to predict the wood
drying process of sawn boards is introduced in this paper.
System Identification of Wood Drying Process Based on ARMAX Model
