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