DRYING, GROWTH TOWARDS A UNIT OPERATION

Within the field of separations drying is one of the unit operations with a very wide variety of materials, equipment type, capacity, product requirements and added value. The scope and depth of published papers about the subject shows a similar variety. At the present time the systematic approach to design and operation, as appears to exist for other unit operations, for drying is still largely incomplete. In the paper some aspects of unification are considered. After some thoughts about types of drying research, examples are given from thermodynamics, transport phenomena and mathematics to show perspectives of using common concepts and theory towards fruitful integration of knowledge from other areas into drying knowledge.

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