The transient hot-wire method is used to measure the thermal conductivities of nanofluids.The experimental results show that nanofluids have remarkably higher thermal conductivities than those of conventional pure fluids.The thermal conductivities of nanofluids are not only influenced by the volume fraction of nanoparticles

but also by other factors such as properties and dimensions of nanoparticles.By analyzing the experimental results

a correlation of thermal conductivity of nanofluid is presented.