| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2015: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2014: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2013: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
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| Outline of Final Research Achievements |
Emulsion is a mixture of two materials that generally don’t mix with each other. It has been used in various fields, such as food, cosmetics, paints, pharmaceuticals, chemical products, and thermal storage media. Oil-water emulsion has a lot of very small oil particles in water. In this study, since the particle might affect the flow and heat transfer characteristics in tube and microchannel, the flow and heat transfer characteristics is investigated experimentally. Emulsion consists of pure water, silicone oil, and surfactant. The combination of the ratio and kind of each material and the channel width was varied as experimental parameters. As the result, the effect of these parameters on Nusselt number were clarified. It was found that the heat transfer coefficient of the emulsion can be estimated as that of a single-phase fluid in the case of low viscosity of the dispersed oil. Meanwhile, the heat transfer was enhanced in the case of high viscosity of the dispersed oil.
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