Convective heat transfer enhancement by diamond shaped micro-protruded patterns for heat sinks: Thermal fluid dynamic investigation and novel optimization methodology

Abstract

In the present work, micro-protruded patterns on flush mounted heat sinks for convective heat transfer enhancement are investigated and a novel methodology for thermal optimization is proposed. Patterned heat sinks are experimentally characterized in fully turbulent regime, and the role played by geometrical parameters and fluid dynamic scales are discussed. A methodology specifically suited for micro-protruded patterns optimization is designed, leading to 73 % enhancement in thermal performance respect to commercially available heat sinks, at fixed costs. This work is expected to introduce a new methodological approach for a more systematic and efficient development of solutions for electronics cooling.

A review on the heat and mass transfer phenomena in nanofluid coolants with special focus on automotive applications

“…Among other passive methods such as fins, engineered surface texturing and microchannels [5][6][7][8][9], the adoption of novel coolants with enhanced thermo-physical properties as compared to conventional ones (e.g. water, oil, ethylene glycol) has attracted interest in the automotive field for a long time [10][11][12][13][14][15][16].…”

Unshrouded Plate Fin Heat Sinks for Electronics Cooling: Validation of a Comprehensive Thermal Model and Cost Optimization in Semi-Active Configuration

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“…where the last term can be expressed by the Boussinesq's eddy viscosity assumption Equation (9). Exploiting the condition in Equation (16), it follows:…”