標題: | Enhanced dehumidification via hybrid hydrophilic/hydrophobic morphology having wedge gradient and drainage channels |
作者: | Yang, Kai-Shing Huang, Yu-Yang Liu, Yao-Hsien Wu, Shih-Kuo Wang, Chi-Chuan 機械工程學系 Department of Mechanical Engineering |
公開日期: | 1-十一月-2019 |
摘要: | Heat transfer performance under dehumidifying conditions for hydrophilic, and hybrid surfaces (hydrophilic/hydrophobic) within ambient are reported. The hybrid surface features star-shape morphology that contains hydrophilic interior inside star-shape while maintains a hydrophobic nature in the exterior of the star-shape. The star-shape offers comparatively good collecting capability of water condensate for its wedge gradient can effectively manipulate the surface energy. The mobility of the condensate within the star-shape interior is improved, leading to enhanced condensation heat transfer performance of 3.7 similar to 11.4% when compared to the hydrophilic surface. However, the contact angle hysteresis of the star-shape surface also retains the condensate inside the star-shape interior to some extent. To tackle this problem, a drainage channel alongside the gravity direction is added to the star-shape surface (star_I), and it offers a much better condensate removal, thereby improving the dehumidifying heat transfer performance up to 15.3 similar to 30.4%. |
URI: | http://dx.doi.org/10.1007/s00231-019-02643-9 http://hdl.handle.net/11536/153186 |
ISSN: | 0947-7411 |
DOI: | 10.1007/s00231-019-02643-9 |
期刊: | HEAT AND MASS TRANSFER |
Volume: | 55 |
Issue: | 11 |
起始頁: | 3359 |
結束頁: | 3368 |
顯示於類別: | 期刊論文 |