V. V. Kuznetsov, A. S. Shamirzaev, A. S. Mordovskoi
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Influence of Jet Velocity on Critical Heat Flux during Two-Phase Microjet Cooling of Electronics with HFE-7100
The influence of the average velocity of jet of HFE-7100 dielectric liquid on the heat transfer and the critical heat flux was experimentally studied with the use of an array of 36 submerged impinging microjets at a large initial subcooling. The heating surface was cooled in a slot-shaped channel with a gap of 1 mm for a distributed array of microjets with diameter of 174 \(\mu\)m. With the distributed array of microjets of dielectric liquid with low heat of vaporization and thermal conductivity, at an initial liquid subcooling of 38.2°C relative to the saturation temperature it was possible to obtain a critical heat flux of 237 W/cm2 at a jet velocity of 9.56 m/s, which corresponds to a heat release source power of 186 W.
期刊介绍：
Journal of Engineering Thermophysics is an international peer reviewed journal that publishes original articles. The journal welcomes original articles on thermophysics from all countries in the English language. The journal focuses on experimental work, theory, analysis, and computational studies for better understanding of engineering and environmental aspects of thermophysics. The editorial board encourages the authors to submit papers with emphasis on new scientific aspects in experimental and visualization techniques, mathematical models of thermophysical process, energy, and environmental applications. Journal of Engineering Thermophysics covers all subject matter related to thermophysics, including heat and mass transfer, multiphase flow, conduction, radiation, combustion, thermo-gas dynamics, rarefied gas flow, environmental protection in power engineering, and many others.
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