| Summary: | 碩士 === 國立成功大學 === 化學工程學系 === 102 === In this study, the vertical streaming of two fluid flows and diffusion inside the microchannel with micropillar array were investigated. Moreover, the effect of the micropillar electrodes on the performance of microfluidic fuel cell (MFC) was discussed. It was found that the interface between two fluid flows moved away from the center line and toward the plane surface as the height of the micropillars increased. In addition, the diffusion zone increased after the fluid flowing through the micropillar array. As to the performance of MFC, the uniformity of the platinum provided better MFC efficiency. The maximum current and power density increased as the height of micropillars increased up to 20 micron and, in this study, were measured 9.8 mA/cm2 and 2.6 mW/cm2, respectively using 120 micron micropillar array.
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