Microwave Drying: Process Engineering Aspects

摘要

Microwave drying is characterised by rapid heating and the development of high pressure and temperature inside the solid. This leads to rapid moisture transport, with significant potential time savings, although internal pressure must be limited to avoid sample rupture. Modelling indicates that the power and moisture content from which microwaves are applied can be optimised in economic terms. The decision to use microwaves in a drying application should be based on adequate return on investment while design of the dryer is best tackled in conjunction with mechanical specialists.