Abstract
Single-phase heat transfer characteristics of nanometer-sized diamond (nano-diamond) dispersed nanofluids have been investigated experimentally. The effective thermal conductivies of both water and ethyleneglycol base nano-diamond dispersed nanofluids obtained by the transient thin hot wire method were increased around 2-6% comparing with base fluids. The obtained values were in good agreement with the estimated values of the Hamilton-Crosser equation. Heat transfer enhancement could be achieved by using the nano-diamond nanofluid as single-phase heat transfer cooling fluid.
