Heat Transfer

Apart from the main task of transporting matter the impellers also have the function of creating heat transfer. Hereby there are various cases: e. g. the vessel contents must be cooled down or heated up

In the case of strong exothermic reactions, however, heat has to be removed. For this an increase of the impeller to tank diameter ratios has proven advantageous to achieve high liquid velocities at the vessel wall. Also multi-stage impeller systems have proven to be advantageous if a high heat transfer is to be achieved.