effect of nano-fiber mat on droplet formation julie kraus research advisor – professor alexander...
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![Page 1: Effect of Nano-Fiber Mat on Droplet Formation Julie Kraus Research Advisor – Professor Alexander Yarin Main Graduate Student Advisor – Suman Ray](https://reader035.vdocuments.site/reader035/viewer/2022070408/56649e4f5503460f94b469e6/html5/thumbnails/1.jpg)
Effect of Nano-Fiber Mat on Droplet Formation
Julie KrausResearch Advisor – Professor Alexander YarinMain Graduate Student Advisor – Suman Ray
![Page 2: Effect of Nano-Fiber Mat on Droplet Formation Julie Kraus Research Advisor – Professor Alexander Yarin Main Graduate Student Advisor – Suman Ray](https://reader035.vdocuments.site/reader035/viewer/2022070408/56649e4f5503460f94b469e6/html5/thumbnails/2.jpg)
Why is this important?
• Dropwise condensation has applications in cooling electrical systems
• Retarding dropwise condensation could prevent corrosion of metals
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Kelvin Equation
Capillary Tube
Symbols
Bernoulli Equation
If we assume that the liquid is incompressible
![Page 4: Effect of Nano-Fiber Mat on Droplet Formation Julie Kraus Research Advisor – Professor Alexander Yarin Main Graduate Student Advisor – Suman Ray](https://reader035.vdocuments.site/reader035/viewer/2022070408/56649e4f5503460f94b469e6/html5/thumbnails/4.jpg)
Kelvin Equation
Symbols
Capillary Tube
![Page 5: Effect of Nano-Fiber Mat on Droplet Formation Julie Kraus Research Advisor – Professor Alexander Yarin Main Graduate Student Advisor – Suman Ray](https://reader035.vdocuments.site/reader035/viewer/2022070408/56649e4f5503460f94b469e6/html5/thumbnails/5.jpg)
Kelvin Equation
Symbols
Capillary Tube
Ideal Gas Law
![Page 6: Effect of Nano-Fiber Mat on Droplet Formation Julie Kraus Research Advisor – Professor Alexander Yarin Main Graduate Student Advisor – Suman Ray](https://reader035.vdocuments.site/reader035/viewer/2022070408/56649e4f5503460f94b469e6/html5/thumbnails/6.jpg)
Kelvin Equation
Symbols
Capillary Tube
![Page 7: Effect of Nano-Fiber Mat on Droplet Formation Julie Kraus Research Advisor – Professor Alexander Yarin Main Graduate Student Advisor – Suman Ray](https://reader035.vdocuments.site/reader035/viewer/2022070408/56649e4f5503460f94b469e6/html5/thumbnails/7.jpg)
Summery
Capillary Tube
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Implications
Rough Surface (nano-fiber mat)Smooth Surface
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ElectrospinningPros Cons
• Very consistent fiber thickness
• High quality nano-fiber
• Does not work for every polymer
• Slower than most other nano-fiber fabrication methods
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Liquid Polymer
Taylor Cone
Charged Plate
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Copper Nano-fiber Mat
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Basic Procedure
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Basic Procedure
LED’s
Glare Hoods
Samples Light
Walls of Condensation Chamber
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Data
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Data Processing
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Data Processing
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Data Processing
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Data Processing
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Results
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Results
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Further Work
1. Testing different types of fibermats
2. Refining of the Matlab code
3. Testing at different temperatures
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Questions?
I would like to acknowledge the financial support from the National Science Foundation, EEC-NSF Grant # 1062943