Wärmeübergang in Rührkesseln mit einphasigen Flüssigkeiten

Abstract

Abstract Heat transfer in agitated vessels with single‐phase liquids . This article deals with the heat transfer in agitated vessels with single‐phase Newtonian and non‐Newtonian liquids. The following topics are discussed: influence of the hydrodynamics on the heat transfer behaviour; description of the heat transfer with the aid of dimensional analysis; heat transfer correlations for agitated liquids; efficiency of the usual impellers with regard to the heat transfer; and scale‐up of agitated systems in the case of heat removal or heat supply. The various correlations suited for the prediction of the rate of heat transfer in both jacketed vessels and vessels with heating or cooling coils are tabulated for agitation produced by turbines (flat blades, disk flat blades, and pitched blades), propeller, anchors, paddles, and helical ribbons. These tables are available from the “Lehrstuhl für Thermische Verfahrenstechnik, Universität Dortmund, Postfach 500 500, D‐4600 Dortmund”.