Enhancement of Boiling Heat Transfer Using Surfactant Over Surface with Mini-Channels

The present article focuses on experimentally investigating the saturated pool boiling performance of isopropanol and its solution with surfactant sodium lauryl sulphate (SLS) over modified surfaces intended towards application in small heat transfer equipment. A comprehensive review on enhancement of pool boiling heat transfer using different surfactants is also presented. Three types of surfaces such as plain surface, a surface having macro-channels, surface with mini-channels are tested for pool boiling. The best performing surface, the surfaces with mini-channel is tested with three solutions of isopropanol with the above-mentioned surfactant with 200, 600 and 1000 PPM concentration. The highest heat transfer coefficient is observed for the 600 PPM solution with the surface with mini-channels.