INFLUENCE OF MOISTURE CARRYING GAS ON DRYING PROCESS OF A ROTARY TUBE DRYER

This paper presents a unique experimental set-up for researching drying mechanism in the rotary tube dryer. Applying this set-up, the influence of moisture carrying gas flow-rate on drying process was investigated. It was found that the gas significantly affects the drying rate. There also exits a gas flow-rate resulting in a pick value of drying rate. Based on the investigation, the proper moisture carrying gas flow-rate was determined. This optimized gas flow-rate ensures the rotary tube dryer with high drying capacity and less heat consumption.