Conjugated heat and mass transfer in convective drying in compact wood kilns: A system approach

• Main Author: Vaz Jr. M.*
• Publication Date: 2013
• Other Authors: Cerqueira R.F.*, Possamai D.G.*, Zdanski, Paulo Sergio Berving
• Format: Article
• Language: eng
• Source: Repositório Institucional da Udesc
• dARK ID: ark:/33523/0013000000tcv
• Download full: https://repositorio.udesc.br/handle/UDESC/8735

Drying is a required operation in timber manufacturing industries. Most drying processes utilise convective kilns, which involve coupling between transient heat and mass (moisture content) transfer in solids and convection in a flowing medium. In the present work, the flow field in the kiln is determined using a system approach based on a general head loss equation, whereas the coupling between transient heat and mass transfer in the timber is accomplished by a solution of a local differential model across the timber stack. The scheme is applied to study the effects of distinct geometric kiln configurations and air flow temperatures upon drying rates and moisture content. © 2013 M. Vaz Jr. et al.