Conjugated Heat and Mass Transfer in Convective Drying in Compact Wood Kilns: A System Approach. (14th November 2013)

• Record Type: Journal Article
• Authors: Vaz Jr., M.; Zdanski, P. S. B.; Cerqueira, R. F.; Possamai, D. G.
• Other Names: Oztop Hakan F. Academic Editor.
• Is Part Of: Advances in mechanical engineering. Volume 2013(2013)
• Publication Date: 2013-11-14
• Subjects: Mechanical engineering -- Periodicals; 621.05
• DOI: 10.1155/2013/538931
• Languages: English
• ISSNs: 1687-8132

Abstract

Abstract : 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.