Executive SummaryRadio-frequency vacuum drying (RFV) combines a radio-frequency alternating electric field with reduced-pressure evaporation. A product is exposed to a field between electrodes; dielectric loss converts some electromagnetic energy into heat within the product.Vacuum lowers the satura
Executive SummaryA vacuum microwave dryer is a closed dryer that applies microwave electromagnetic energy to wet dielectric material under reduced pressure. It can use static trays, moving carriers, tumbling drums, or specialized continuous transport.Vacuum lowers the saturation temperature of the e
Executive SummaryVacuum drying is often selected for flammable solvents, combustible powders, and oxygen-sensitive materials because a closed low-pressure process can reduce oxygen exposure and facilitate solvent recovery. However, vacuum operation does not automatically make a dryer explosion-proof