Review of micro and mini channels, porous heat sinks with hydrophobic surfaces for single phase fluid flow

New cohort technology is facing the challenges of cooling the advanced electronic devices with ever greater heat generated due to the densely populated Integrated Circuits (ICs). The commonly used cooling fluids like water, Ethylene Glycol (EG) and oils are not in the position to combat these challenges. To cater these requirements, advance fluids with better thermo physical properties called nano fluids are searched out which are the combination of base fluids and dispersed nano sized particles. Mini/Micro channel heat sinks using Nano fluids are the focus of the recent research. The current study is focused on the review of experimental, numerical and analytical application of the Nano fluids in mini/micro channel Heat sinks for enhanced heat transfer in cooling systems. The uses of Hybrid Nano fluids in different systems are also critically analysed. A brief discussion of porous medium devices, discussion of the correlations developed by different researchers for Hybrid nanofluids and synthesis as well as uses of super hydrophobic surfaces have also been included in this study.