Effect of nanoparticles on the evaporation of a salt water film

Abstract The need for freshwater supply in different parts of the world has given great interest to study seawater desalination, which led development various innovative techniques this field. present numerical contributes improvement evaporative desalination operation by introducing nanoparticles into base fluid. technique considered consists a saltwater film falling along inner wall vertical channel heated uniformly constant heat flux. equations governing flow and mass transfer associated with boundary interface conditions are solved numerically using finite difference method. We two values salinity, 10 39 g∙kg−1, correspond respectively brackish water sea types volume fractions order effect combination these parameters on enhancement evaporation. results showed that evaporation process injecting salt improves due its positive thermophysical properties. In addition, Al2O3 is significantly better than TiO2 copper. Moreover, we can achieve same performance 2% alumina instead 4% TiO2.