ROLE OF METALS IN PREPARATION OF NANOFLUIDS

Abstract

Nanofluids are dispersion of nanoparticles in base fluids, it’s a new challenge for thermal sciences given by nanotechnology Due to their excellent features, nanofluids find wide applications in enhancing heat transfer.These shows large increase of thermal conductivity in comparison with their base fluids.The particles used are generallymetal or metal oxide which increases thermal conductivity & convection coefficient. Metallic nanofluids are prepared by dispersing nanoparticle made from metals such as aluminum, silicon ,iron, silver, gold, , titanium , copper, nickel etc. and nonmetallic nanofluids are prepare by dispersing nanoparticles of nonmetals i.e. metal oxides, various allotropes of carbon for example; Graphene, CNTetc. Synthesis and stability of nanofluids are the two very primary parameters to study nanofluids