Experimental study on thermo-hydraulic performance of nanofluids in CPU heat sink with rectangular grooves and cylindrical bugles based on exergy efficiency

Add time:09/01/2019    Source:sciencedirect.com

An experiment system for CPU cooling based on nanofluids is set up. The flow and heat transfer characteristics of TiO2-water nanofluids in CPU heat sink are experimentally investigated. The influences of rectangular groove depths (1 mm, 2 mm) and cylindrical bulge arrangement modes (aligned and staggered arrangements) on thermo-hydraulic performances of CPU cooled by TiO2-water nanofluids are analyzed. In addition, the influences of nanoparticle mass fractions (0.0%, 0.1%, 0.2%, 0.3%, 0.4%, 0.5%) and Reynolds numbers (472-1198) are studied. The thermal efficiency and exergy efficiency evaluation plots are developed and are applied to evaluate the thermo-hydraulic performance of nanofluids. It is found that large depth rectangular groove and staggered arrangement cylindrical bulges are beneficial to heat transfer enhancement. Nanofluids with mass fraction of 0.3% and 0.4% show the best cooling performance for rectangular grooves structure and cylindrical bulges structure respectively. CPU with rectangular grooves and cylindrical bugles shows higher exergy efficiency than that with smooth surfaces under the same pump power. The exergy efficiency is sensitive to deep grooves, aligned arrangement bulges, small Reynolds number. Nanofluids with low mass fraction (0.1%) show the highest exergy efficiency.

We also recommend Trading Suppliers and Manufacturers of CPU 23 (cas 132836-32-9). Pls Click Website Link as below: cas 132836-32-9 suppliers

Prev:Investigation on the CPU nanofluid cooling
Next:vSimilar: A high-adaptive VM scheduler based on the CPU pool mechanism)