S-Space College of Agriculture and Life Sciences (농업생명과학대학) Dept. of Forest Sciences (산림과학부) Journal Papers (저널논문_산림과학부)
The effect of openings on combined bound water and water vapor diffusion in wood
- Kang, Wook; Kang, Chun-Won; Chung, Woo Yang; Eom, Chang-Deuk; Yeo, Hwanmyeong
- Issue Date
- JOURNAL OF WOOD SCIENCE Vol.54 No.54, pp. 343-348
- This study was undertaken to estimate the effect of openings between cell walls on combined bound water and water vapor diffusion in wood. Using a newly developed model, the radial and tangential moisture diffusion coefficients can be predicted depending on the opening area. The new model explicitly involves a term for water vapor diffusion through the openings, as well as a term for the combined diffusion of bound water and water vapor. A classical model developed by Stamm and Choong had higher longitudinal moisture diffusion coefficients than that in the parallel model at higher moisture content, which is inconsistent with the Wiener bound rule. The new model suggested in this article is useful for analyzing the experimental results and understanding the variability of the diffusion coefficients.
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