Fundamental Investigation of the Flow in an Agitated Thin Film Evaporator : 1st Report, The Flow in a Horizontal Agitated Thin Film Evaporator

Abstract

In this report, we observe the flow pattern in a horizontal agitated thin film evaporator under the condition that thermal effects are excluded. The test model is a horizontal cylinder which has the wiping blades inside. The working fluid is water. We researched the liquid volumetric flow rate and the revolution of the wiping blades which affect the profile of the wiped liquid fillet, the state of the thin liquid film, the residence time in the apparatus and the axial dispersion. We also researched the profile of the fillet in a two-dimensional shallow water tunnel.