Ice nucleation in water droplets on glass surfaces: From micro- to macro-scale |
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| Affiliation: | 1. Department of Energy and Power Engineering, School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China;2. Department of Automation and Control Engineering, Faculty of Applied Informatics, Tomas Bata University in Zlín, Nad Stráněmi 4511, Zlín 76005, Czech Republic;3. Department of Chemical Engineering, Ilam University, Ilam 69315-516, Iran;4. Department of Technical Studies, College of Polytechnics Jihlava, Tolstého 16, 586 01 Jihlava, Czech Republic |
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| Abstract: | 
Ice nucleation encountered in engineering systems is often induced by solid/water interfaces. When classical nucleation theory is used to analyze ice nucleation in such systems, the uniformity of interfaces that contribute to ice nucleation must be carefully considered, because classical nucleation theory cannot be directly applied to non-uniform interfaces. In this study, to discuss the uniformity of ice nucleating activity of solid/water interfaces, ice nucleation in water droplets prepared on glass surfaces was investigated for various droplet sizes from micrometer to sub-millimeter. When the interfacial area between water and the glass surface was smaller than 1 × 10−10 m2, the ice nucleation temperature showed scatter of about 2 °C, suggesting uniformity of the interface. However, when the interfacial area was larger than 1 × 10−8 m2, the ice nucleation temperature showed large scatter, suggesting the ice nucleating activity was no longer uniform. |
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| Keywords: | Ice Nucleation Droplet Glass surface Classical nucleation theory Glace Nucléation Gouttelettes Surface de verre Théorie classique de la nucléation |
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