WIT Press


Mass Transport In Thin Surface Layers - Effects From A Transport Barrier Zone

Price

Free (open access)

Paper DOI

10.2495/HT980501

Volume

20

Pages

11

Published

1998

Size

1,240 kb

Author(s)

R. Garcia-Padron, K. Storck, M. Karlsson and D. Loyd

Abstract

Drying of lacquer coatings in wood manufacturing industry is one example of industrial drying of thin surface layers. In this study a waterbome lacquer coated on a particleboard is chosen as an example in order to study the drying process. The thickness of the coating normally varies between 10 and 100 jim. The lacquer coating and the particleboard are regarded as porous media and a two-zone model is used. There is free water transport in the wet zone, and bound water transport in the dried zone. The thickness of the dried zone, in the lacquer coating, and the formation time of the zone are varied, in order to evaluate the effect on the water transport in the lacquer coating and the particle board. A finite difference model is used to calculate the wate

Keywords