Rational Micro-Nano Structuring for Thin Film Evaporation
| dc.contributor.advisor | Ghasemi, Hadi | |
| dc.contributor.committeeMember | Araya, Daniel B. | |
| dc.contributor.committeeMember | Ardebili, Haleh | |
| dc.creator | Farokhnia, Nazanin | |
| dc.date.accessioned | 2019-11-17T21:57:13Z | |
| dc.date.available | 2019-11-17T21:57:13Z | |
| dc.date.created | December 2016 | |
| dc.date.issued | 2016-12 | |
| dc.date.submitted | December 2016 | |
| dc.date.updated | 2019-11-17T21:57:13Z | |
| dc.description.abstract | Heat management in electronics and photonics devices is a critical challenge that impedes the accelerated breakthrough in these fields. Among approaches for heat dissipation, thin film evaporation with micro/nano structures has been one of the most promising approaches that can address future technological demand. The geometry and dimension of these micro/nano structures directly govern the interfacial heat flux. Here, through theoretical and experimental analysis, we find that there is an optimal dimension of micro/nano structures that maximizes the interfacial heat flux by thin film evaporation. This optimal criterion is a consequence of two opposing phenomena: non-uniform evaporation flux across a liquid meniscus (divergent mass flux near three phase contact line) and the total liquid area exposed for evaporation. This general criterion is independent of the solid material and thermo-physical properties of the cooling liquid. This study paves the path for development of high-performance thermal management systems. | |
| dc.description.department | Mechanical Engineering, Department of | |
| dc.format.digitalOrigin | born digital | |
| dc.format.mimetype | application/pdf | |
| dc.identifier.citation | Portions of this document appear in: Farokhnia, Nazanin, Peyman Irajizad, Seyed Mohammad Sajadi, and Hadi Ghasemi. "Rational micro/nanostructuring for thin-film evaporation." The Journal of Physical Chemistry C 120, no. 16 (2016): 8742-8750. | |
| dc.identifier.uri | https://hdl.handle.net/10657/5446 | |
| dc.language.iso | eng | |
| dc.rights | The author of this work is the copyright owner. UH Libraries and the Texas Digital Library have their permission to store and provide access to this work. UH Libraries has secured permission to reproduce any and all previously published materials contained in the work. Further transmission, reproduction, or presentation of this work is prohibited except with permission of the author(s). | |
| dc.subject | Micro heat transfer | |
| dc.subject | Nanostructures | |
| dc.title | Rational Micro-Nano Structuring for Thin Film Evaporation | |
| dc.type.dcmi | Text | |
| dc.type.genre | Thesis | |
| thesis.degree.college | Cullen College of Engineering | |
| thesis.degree.department | Mechanical Engineering | |
| thesis.degree.discipline | Mechanical Engineering | |
| thesis.degree.grantor | University of Houston | |
| thesis.degree.level | Masters | |
| thesis.degree.name | Master of Science |