Nanofluids have evoked immense interest from researchers all around the globe due to their numerous potential benefits and\napplications in important fields such as cooling electronic parts, cooling car engines and nuclear reactors. An analytical study\nof fluid flow of in-tube stratified regime of two-phase nanofluid has been carried out for CuO, Al2O2, TiO3, and Au as applied\nnanoparticles in water as the base liquid. Liquid film thickness, convective heat transfer coefficient, and dryout length have been\ncalculated. Among the considered nano particles, Al2O3 and TiO2 because of providing more amounts of heat transfer along with\nlonger lengths of dryout found as the most appropriate nanoparticles to achieve cooling objectives.
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