| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 7054176 | International Journal of Heat and Mass Transfer | 2018 | 12 Pages |
Abstract
Micro and nanostructured surfaces can significantly improve the heat transfer capability and shift the Leidenfrost temperature of impacting droplets. In this study, the effect of overheated random Si Nanowires on impacting water droplets is presented. The cooling performance was studied in term of droplet evaporation time and surface temperature while the boiling dynamics was observed through high-speed visualization. The Si Nanowires can increase almost twice the Leidenfrost temperature compare to the similar case of plain Si surface. At the same time, the heat transfer is enhanced by widening the transition boiling region about 150â¯K. In this regime, the film liquid lift-off behavior is observed in the range of the We numbers studied.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Fluid Flow and Transfer Processes
Authors
Manuel Auliano, Maria Fernandino, Peng Zhang, Carlos Alberto Dorao,