Abstract
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 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 emulsion's apparent viscosity and Nusselt number were clarified.