INFLUENCE OF HEARTWOOD-SAPWOOD PROPORTIONS ON THE DRYING KINETICS OF A BOARD

被引：13

作者：

BONNEAU, P

PUIGGALI, JR

机构：

[1] Laboratoire Energétique et Phénomènes de Transfert L.E.P.T. - ENSAM, Talence Cedex, 33405

来源：

WOOD SCIENCE AND TECHNOLOGY | 1993年 / 28卷 / 01期

关键词：

D O I：

10.1007/BF00193878

中图分类号：

S7 [林业];

学科分类号：

0829 ; 0907 ;

摘要：

Several properties have been measured for pinewood samples, corresponding to the region within the heartwood or the sapwood, with the aim of treating wood as a heterogeneous medium when modelling the drying process. A two driving-force model is used to compare a homogeneous and a heterogeneous approach to the drying of a pinewood board. The main difference between the two theoretical descriptions is a specific boundary condition for the inter-region, which may generate jumps of the moisture content fields. Experimental and numerical results are presented and some comments are made concerning the use of the heterogeneous model.

引用

页码：67 / 85

页数：19