Experimental study of condensation of dielectric liquid in microchannel heat exchanger

Abstract

Abstract This study presents the results of an experimental investigation of the heat transfer under condensation of perfluorohexane inside the horizontal multi-microchannel system. The copper heat exchanger contains 21 rectangular microchannels with 335x930 μm cross-section. The heat from the condensing flow is rejected to a flow of water by Peltier modules. Experiments are performed in a range of mass fluxes from 90 to 200 kg/m2s and vapor qualities from 1 to 0. Obtained data set on heat transfer is compared with theoretical predictions.