Enhancement of Condensation Heat Transfer by using Optimized Asymmetric Coplanar EWOD Electrode Design

• Main Authors: Xu-WeiChen, 陳緒瑋
• Other Authors: Tzong-Shyng Leu
• Format: Others
• Language: zh-TW
• Published: 2014
• Online Access: http://ndltd.ncl.edu.tw/handle/28544300563311949436

碩士 === 國立成功大學 === 航空太空工程學系 === 102 === The objective of this study is applying electrowetting on dielectrics (EWOD) phenomena on condensation heat transfer. By using the asymmetric coplanar EWOD electrode design, one can drive condensation droplets in one direction. The main driving mechanism is to generate the asymmetric EWOD driving forces which cause droplets continuously move on a surface. In this study, theoretical analysis is first used to optimize EWOD electrode design. The maximum EWOD driving force happens if the width of extruded electrode over the radius of droplet is 1.488. In the meantime, experimental results support the current optimal design which shows it can generate the highest EWOD driving force than the other designs.