The manifold microchannel (MMC) heat sink, which possesses better transfer performance and less pressure drop than the traditional has attracted much attention from researchers in recent years. But not of them, either single-phase or two-phase ones, focused on problems about flow maldistribution wall temperature nonuniformity that might ultimately lead to system breakdown. To investigate distri...

The optimum design of the microchannel heat sinks needs to consider both transfer and pressure drop limitations microchannel. In this paper, a novel configuration sink is proposed obtain improved thermo-hydraulic performance. includes porous fins that form adjacent converging–diverging channels. Three-dimensional steady laminar simulations were conducted access performance compare it with conve...

The study of the influence nanoparticle volume fraction and aspect ratio microchannels on fluid flow heat transfer characteristics nanofluids in is important optimal design dissipation systems with high flux. In this work, computational dynamics method was adopted to simulate two types water-Al2O3 different fractions five microchannel sinks ratios. Results showed that increasing reduced average...

Thermal management at a high heat flux is crucial for high-power electronic devices, and jet impingement cooling promising solution. In this paper, hybrid sink combining microchannel was designed, fabricated tested in closed-loop system with R134a as the working fluid. The thermal contact resistance measured by using steady-state method, of obtained different fluxes flow rates. maximum dissipat...