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ISSN Druckformat: 1065-5131
ISSN Online: 1563-5074
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High Flux Evaporative Mini-Channel Heat Sink with Axial Capillary Grooves
ABSTRAKT
A mathematical model of a flat miniature evaporator with axial grooves on the inner walls and forced, co-current, separated flows of vapor and liquid is developed. The predicted performance characteristics, such as the maximum heat flux, effective length, pressure drop across the evaporator, mass flow rate, and axial distribution of the mean temperature of the wall, are presented for a copper-water heat sink. The results suggest that the 2.6 mm thick heat sink with an effective length of 80 mm is capable of withstanding heat fluxes of at least 65 W/cm2 on both side walls while operating in the purely evaporative mode with a comparatively small pressure drop and low thermal resistance. The proposed heat sink can be used in cooling systems for electronic components.
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