Synopses & Reviews
This book presents a systematic thermomechanical theory of drying. The book has an interdisciplinary character and combines the knowledge of Chemical Engineering and Mechanics of Continua. It contents a unified approach to the heat and mass transfer in drying processes as well as a precise analysis of all local drying effects. Methods for the improvement of the quality of the dried products and optimization of drying processes with respect to the strength of materials and the drying time are presented. The book also presents the theory for fully coupled multiphase transport in deformable capillary porous media as well as computer simulations of drying processes. Finally the acoustic emission method is described as an experimental way of identification of material fractures during drying.
Synopsis
This book is interdisciplinary in character and combines the knowledge of me- chanics and chemical engineering with the aim of presenting a more exhaustive analysis ofthe phenomena occurring in wet materials during drying. Traditionally, the subject of drying has been an almost exclusive domain of chemical engineers. The drying curricula have mostly included only the courses of heat and mass transfer or diffusion. The mechanical phenomena that accompany drying, as for example, warping or deformation of dried materials, or the drying induced stresses and fissures of the material, were ignored or considered in a rather obscure way. This book broadens the scope of drying theory, bringing into the curriculum the tools enabling the study of both heat and mass transport processes and the me- chanical phenomena that occur in wet materials under drying. There is little available literature that brings together heat and mass transport processes and mechanical phenomena in a unified approach to drying processes.
Table of Contents
Properties of dried materials.- Characterization of drying processes.- The equations of balance.- Thermodynamic foundation of dried materials in elastic range.- Thermodynamics of viscoelastic materials under drying.- Plasticity in drying.- Destruction of materials by drying.- Conditions of stress generation. Boundary conditions.- Approach to numerical analysis in drying.- One-dimensional initial-boundary value problem.- Drying induced stresses in products of cylindrical and spherical symmetry.- Mechanical effects in dried materials examined on the basis of two-dimensional boundary value problems.- Dried materials with anisotropic structure.- Experimental studies in drying.