https://scholars.lib.ntu.edu.tw/handle/123456789/598990
標題: | Evaporation heat transfer enhancement by a laser-textured heterogeneous surface | 作者: | Hsu C.-C Cheng H.-C Chang T.-L Chen P.-H. PING-HEI CHEN |
關鍵字: | Bubble dynamics;Droplet evaporation;Heterogeneous;Ultrafast laser;Bubbles (in fluids);Drops;Heat transfer;Irradiation;Pulsed lasers;Textures;Ultrafast lasers;Wetting;Evaporation heat transfer;Heat Transfer enhancement;Heterogeneous surface;Laser-textured;Liquid-vapour;Surface wettability;Ultra-fast;Evaporation;copper;water;Article;confocal laser scanning microscopy;contact angle;controlled study;environmental temperature;evaporation;heat transfer;image analysis;liquid;molecular dynamics;surface property;thermal conductivity;vapor;wettability | 公開日期: | 2021 | 卷: | 628 | 來源出版物: | Colloids and Surfaces A: Physicochemical and Engineering Aspects | 摘要: | Numerous studies have explored the influence of surface wettability on liquid vapor heat transfer through surface modification; especially when the surface can be modified with heterogeneous wettability. Herein the heterogeneous wettability surfaces with the designated patterns can be created on surfaces only in a few seconds after laser irradiation. LSCM images indicated the surfaces with laser irradiation became rougher and provided more nucleation sites. In this study, experiments for evaporation behaviors of water droplet were performed on picosecond laser-textured heterogeneous copper surfaces. The CCD images revealed that bubble dynamics play an important role in droplet evaporation on heated surfaces. Based on the behavior of bubble coalescence and departure, the heterogeneous laser-textured surface exhibited superior evaporation efficiency. ? 2021 |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85113273181&doi=10.1016%2fj.colsurfa.2021.127359&partnerID=40&md5=b704cb3b58fd8e81b87aa4d98cbca6b4 https://scholars.lib.ntu.edu.tw/handle/123456789/598990 |
ISSN: | 09277757 | DOI: | 10.1016/j.colsurfa.2021.127359 |
顯示於: | 機械工程學系 |
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