A Dual-Scale Computational Model of Kiln Wood Drying Including Single Board and Stack Level Simulation

摘要

This article proposes a dual-scale computational model of wood drying in a batch lumber kiln.The stack may consist of a large number of boards(typically 100)arranged in layers.Each single board of the stack is simulated using one module of TransPore,a comprehensive computational model for heat and mass transfer in porous media.Timber variability is taken into account by a Monte-Carlo method.Such a dual-scale model allows the drying simulation of a 100-board stack to be completed in less than 30 s on a PC with a 2.8-GHz Xeon processor.Sample simulations are presented to depict the great potential and prospects of this new tool.