Effect of Surface Wettability and Spreading on Nanofluids Boiling Heat Transfer

Surface wettability is one of the mechanisms responsible for the enhancement of pool boiling heat transfer. This work investigates the effect of surface wettability and spreading on nanofluids pool boiling heat transfer. Water, ethylene glycol, water-ethylene-glycol base fluids and nanofluids containing TiO2 in different concentrations were studied on polished stainless steel substrate in an environmental chamber at 20, 25, 50, 70 and 80 0 C respectively.