Abstract

The paper presents a novel drying system which includes a superheated steam drying and a hot air drying. The conventional viscose fiber drying is experimental studied and the drying quality and energy consumption were analyzed. In the experiments, the temperature of superheated steam covered the range from 120°C to 150°C and, hot air temperature is about 80°C. A series of drying kinetics curves were determined to optimize the operation parameters. The results show that the combined drying has high energy efficiency because of the exhaust heat recovery from superheated drying period.

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