Journal article
Wicking Enhanced Critical Heat Flux for Highly Wetting Fluids on Structured Surfaces
Langmuir, v 36(32), pp 9643-9648
18 Aug 2020
PMID: 32686421
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
The use of micro/nano-scale structures has been shown to enhance critical heat flux (CHF) during pool boiling in recent studies. A correlation between wicking rate and CHF enhancement for structured superhydrophilic surfaces has been reported in prior work of the authors. In that work, a nondimensional correlation was developed and validated using only water as the working fluid. In this study, a highly wetting fluid (FC-72) was used to demonstrate the applicability of this correlation on structured surfaces for nonaqueous liquids. This has been achieved using a simple modification of the experimental procedure for highly wetting fluids. This experimental modification shows no effect on the quantification of the liquid wicking rate. Numerous structured superhydrophilic surfaces have been fabricated and tested, including micro- and nanoscale structures and hierarchical surfaces which showed the highest CHF enhancement (200%). More importantly, this work demonstrates the validity of the nondimensional parameters used in the proposed CHF correlation and its overall applicability to a wide range of nonaqueous liquids.
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Details
- Title
- Wicking Enhanced Critical Heat Flux for Highly Wetting Fluids on Structured Surfaces
- Creators
- Md Mahamudur Rahman - Department of Mechanical EngineeringShakerur Ridwan - Drexel UniversityDonald Fehlinger - Drexel UniversityMatthew McCarthy - Drexel University
- Publication Details
- Langmuir, v 36(32), pp 9643-9648
- Publisher
- American Chemical Society; Washington, DC
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Engineering Technology; Mechanical Engineering and Mechanics
- Web of Science ID
- WOS:000563024600032
- Scopus ID
- 2-s2.0-85089709587
- Other Identifier
- 991019169006804721
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InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Chemistry, Multidisciplinary
- Chemistry, Physical
- Materials Science, Multidisciplinary