Research on the effect of microwave pretreatment on moisture diffusion coefficient of wood

被引：28
|
作者：
Li, XJ [1 ]
Zhang, BG [1 ]
Li, WJ [1 ]
Li, YJ [1 ]
机构：
[1] Beijing Forestry Univ, Sch Mat Sci & Technol, Beijing 100083, Peoples R China
来源：
WOOD SCIENCE AND TECHNOLOGY | 2005年 / 39卷 / 07期
关键词：
Diffusion Coefficient; Moisture Diffusion; Untreated Wood; Radial Wall; Moisture Movement;
D O I：
10.1007/s00226-005-0007-z
中图分类号：
S7 [林业];
学科分类号：
0829 ; 0907 ;
摘要：
Based on the pathway of moisture diffusion in wood below FSP, an improved moisture diffusion model has been proposed. The theoretical solution of the mathematic model shows that the diffusion coefficient for microwave pretreated wood was increased no more than 3% compared with that of wood without being treated even under extreme condition. Experiments indicate that the pit membrane structure can be effectively destroyed during microwave pretreatment, but the moisture diffusion coefficient can not be significantly improved. In practice, the effect of microwave pretreatment on moisture diffusion coefficient can be ignored. The drying rate of wood during the sequent conventional drying can not be significantly improved by microwave pretreatment.
引用
收藏
页码：521 / 528
页数：8
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