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Spreadsheet simulation of one-dimensional unsteady-state nonisothermal moisture diffusion in wood in the transverse direction |
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| Authors: | Takashi Tanaka Nobuhiro Asakura Stavros Avramidis |
| Affiliation: | 1. College of Agriculture, Academic Institute, Shizuoka University, Shizuoka, Japan;2. Forest Research Department, Forest Products Research Institute, Hokkaido Research Organization, Hokkaido, Japan;3. Department of Wood Science, Faculty of Forestry, University of British Columbia, Vancouver, BC, Canada |
| Abstract: | A spreadsheet for the numerical simulation of one-dimensional unsteady-state nonisothermal moisture diffusion in solid wood in the transverse direction below the fiber saturation point was developed in this work. Calculations for solving a pair of partial differential equations describing the moisture diffusion based on a finite-difference method were performed. Experimental validations revealed that the spreadsheet provides predictions of moisture diffusion in wood as accurately as a commercial simulation software package does. This spreadsheet simulation can help people involved in manufacturing, utilizing, or researching wood products to implement a simple and convenient numerical simulation of moisture diffusion in wood without any special skill and any specific software. |
| Keywords: | Irreversible thermodynamics model spreadsheet simulation transverse bound water diffusion unsteady-state nonisothermal diffusion wood drying |