Abstract
As heat generation increases in CPUs and other small electronic devices, more miniaturized and efficient cooling technology has been required. In this study the authors investigated combination of impinging flow and high-carbon alcohol aqueous solutions in mini tube. The authors performed experiments and compared heat-transfer characteristics about cooling methods and working fluids. T-junction tube made of quartz glass realized the impinging flow. The flow tube has a circle cross section, and a diameter was 2.0 mm. They adopted pure water and butanol aqueous solutions for working fluids. Concentration level of butanol aqueous solutions was 1.50wt%, 3.00wt%, 4.50wt%, and 7.15wt%. It was found from the experimental results that liquid film of the butanol aqueous solutions extend in a direction toward high-temperature region and the butanol aqueous solutions gave higher cooling ability.
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