Heat transfer in agitated vessels with special types of impellers

Abstract

Studies on the rate of heat transfer in agitated vessels with special types of impellers were carried out. The impellers used were a double helical ribbon, a quadruple helical ribbon and a helical screw. The liquid media investigated were water, bitumen and aqueous glycerine solutions. Vessel-wall heat transfer coefficients were obtained for each impeller. For the helical screw, an off-centered system was studied and the impeller surface heat transfer. © 1979, The Society of Chemical Engineers, Japan. All rights reserved.