A study on the separation of diffusion and surface emission coefficients in wood

被引：13

作者：

Cai, LP ^{[1
]}

Avramidis, S ^{[1
]}

机构：

[1] UNIV BRITISH COLUMBIA, DEPT WOOD SCI, VANCOUVER, BC V6T 1Z4, CANADA

来源：

DRYING TECHNOLOGY | 1997年 / 15卷 / 05期

关键词：

diffusion coefficient; moisture; non-linear simplex; surface emission coefficient; Visual Basic; wood;

D O I：

10.1080/07373939708917303

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

For a more accurate simulation of the moisture sorption process in wood, the precise separation of surface emission and diffusion coefficients is essential. In this paper, a non-linear simplex technique that was developed to obtain the optimum pair of the surface emission coefficient h(c), and the diffusion coefficient D from a single sorption curve is presented and tested with experimental data. An easy to use computer program was employed to carry out the evaluation. Data analysis showed that the new method resulted in a more statistically accurate calculation of h(c) and D than currently existing methods.

引用

页码：1457 / 1473

页数：17

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