Mathematical Relationship Between Surface Emission and Diffusion Coefficients
作者:
JenY. Liu,
WilliamT. Simpson,
期刊:
Drying Technology
(Taylor Available online 1996)
卷期:
Volume 14,
issue 3-4
页码: 677-699
ISSN:0737-3937
年代: 1996
DOI:10.1080/07373939608917120
出版商: Taylor & Francis Group
关键词: concentration of diffusing substance;desorption;diffusion coefficient;diffusion equation;sorption;surface emission coefficient
数据来源: Taylor
摘要:
This naver analvzes the surface emission coefficient corresponding to anv diffusion coefficient expressed as an exponential function of the concentration diffusing substance in capillary porous solids. Theoretical equations for surface emission coefficient for both sorption and desorption are presented. Procedures to derive the diffusion coefficient and to verify the corresponding surface emission coefficient are made using experimental sorption data of aspen (Populur sp.) wood. It is of interest to note that the theoretical models for diffusion and surface emission coefficients can be established and/or evaluated using the same set of experimental dara.
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