Mathematical Modeling of Kiln Drying of Softwood Timber: Model Development, Validation, and Practical Application
- 6 March 2007
- journal article
- research article
- Published by Informa UK Limited in Drying Technology
- Vol. 25 (3), 421-431
- https://doi.org/10.1080/07373930601183751
Abstract
Mathematical modeling of wood drying is a powerful tool to better understand and quantify the effects of wood properties as well as the effects of drying and post-drying treatment conditions on drying and thus the wood drying models can be used to improve drying quality. The models that have been developed can be divided into three categories: models for drying a single board, models for drying a kiln-wide stack, and models for drying stress and deformation. The single-board drying model employs comprehensive heat and moisture mass transfer equations and can be used to investigate the influence of wood variability. The kiln-wide drying model, which is based on the transfer processes between wood and the drying medium, is able to examine the influence of drying schedules and wood properties. The stress model can predict stress development in drying and stress relief in final steam conditioning and post-kiln treatment. An integrated model can be used to optimize drying schedules and develop strategies for high-quality dried timber.Keywords
This publication has 14 references indexed in Scilit:
- Investigation of effects of wood variability and rheological properties on lumber drying: application of mathematical modelsChemical Engineering Journal, 2002
- HEAT AND MASS TRANSFER DURING SAPWOOD DRYING ABOVE THE FIBRE SATURATION POINTDrying Technology, 2000
- Model predicted and CT scanned moisture distribution in aPinus radiata board during dryingEuropean Journal of Wood and Wood Products, 1998
- RELATIVE IMPORTANCE OF VAPOUR DIFFUSION AND CONVECTTVE FLOW IN MODELLING OF SOFTWOOD DRYINGDrying Technology, 1998
- Moisture content gradient in a softwood board during drying: simulation from a 2-D model and measurementWood Science and Technology, 1996
- The Application of Mathematical Models to the Commercial High-Temperature Drying of Softwood LumberDrying Technology, 1995
- MOISTURE MOVEMENT IN SOFTWOOD TIMBER AT ELEVATED TEMPERATURESDrying Technology, 1994
- Primary Wood ProcessingPublished by Springer Science and Business Media LLC ,1993
- A mathematical model of drying for hygroscopic porous mediaAIChE Journal, 1986
- Capillary pressure in softwoodsWood Science and Technology, 1981