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Condensation heat flux measurements in ambient conditions on superhydrophobic nanostructured surfaces
Sotelo, Jesus A
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https://hdl.handle.net/2142/97780
Description
- Title
- Condensation heat flux measurements in ambient conditions on superhydrophobic nanostructured surfaces
- Author(s)
- Sotelo, Jesus A
- Issue Date
- 2017-04-26
- Director of Research (if dissertation) or Advisor (if thesis)
- Miljkovic, Nenad
- Department of Study
- Mechanical Sci & Engineering
- Discipline
- Mechanical Engineering
- Degree Granting Institution
- University of Illinois at Urbana-Champaign
- Degree Name
- M.S.
- Degree Level
- Thesis
- Keyword(s)
- Heat flux measurement
- Condensation
- Superhydrophobic
- Abstract
- Water vapor condensation is a natural phenomenon experienced in everyday life which can be combined with non-wetting surfaces to enhance heat transfer, desalination, anti-icing and self-cleaning. Recently, superhydrophobic coatings have gathered attention with jumping droplets with the potential for self-cleaning applications and spot cooling on high powered applications. With new coatings being used on different materials, a need has developed for heat transfer measurements through these superhydrophobic coatings as typical heat transfer calculations have been known to underestimate the total heat transfer. Here, I propose to measure the heat flux of a superhydrophobic, nanostructured surface without the need for a controlled vacuum environment. By measuring heat flux within an individual droplet and multiple droplets within a surface, we show that it is possible to measure heat flux of a surface without the need for expensive equipment. As a means of validating these results, experiments within a vacuum chamber will be repeated; hence, the author has provided notes regarding the vacuum chamber building process. This work demonstrates the ability for other researchers to know the heat flux density of a newly fabricated surface to perform initial calculations. Further experiments will involve a vacuum chamber in which similar experiments will be run to be able to compare data and see the effect of atmospheric conditions and non-condensable gasses.
- Graduation Semester
- 2017-05
- Type of Resource
- text
- Permalink
- http://hdl.handle.net/2142/97780
- Copyright and License Information
- Copyright 2017 Jesus Alfredo Sotelo
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