Characterization of heat transfer modes of tube side convective condensation under the influence of an applied DC voltage

An experimental study was performed to determine the modes of heat transfer in horizontal tube side convective condensation under an applied DC high voltage. Experiments were performed with R134a in a horizontal, single-pass, counter-current heat exchanger. A 8kV DC voltage was applied through a central rod electrode with the tube wall grounded for mass flux in the range 45–156kg/m2s. The average quality across the test section was 45%, which …