Experimental investigations of stirred solid/liquid systems in three different scales: Particle distribution and power consumption

摘要

In this paper, experimental results of power consumption as well as phase distribution measurements in stirred solid/liquid systems are presented. The local dispersed phase volume fraction in three geometrically similar vessels with the diameters of 0.2, 0.4 and 0.9 m was investigated at up to 69 different local positions by means of an endoscope technique. The results are compared and show a good agreement between the different vessel sizes under comparable conditions. The power number was investigated and found to decrease remarkably with increasing mean solids concentrations. (c) 2005 Elsevier Ltd. All rights reserved.