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Nucleation Dynamics For Water Condensation On Hydrophobic Surfaces In The Presence Of Non-Condensable Gases, Xinyu Jiang
Nucleation Dynamics For Water Condensation On Hydrophobic Surfaces In The Presence Of Non-Condensable Gases, Xinyu Jiang
McKelvey School of Engineering Theses & Dissertations
The density and rate of nucleation (here-in called nucleation density rate) significantly influences the heat transfer performance during dropwise condensation, as more than 70% of the total heat transfer happen for droplets smaller than 10 μm. Based on the classical nucleation theory, supersaturation strongly influences nucleation dynamics. However, the presence of non-condensable gas can strongly reduce the nucleation density rate by forming a vapor-depleted gas diffusion layer. Therefore, this work studied the relationship between nucleation density rate and supersaturation ratio during dropwise condensation on subcooled smooth hydrophobic surfaces with the presence of non-condensable gases in a custom-built condensation chamber. High-speed …
Nucleation Dynamics For Water Condensation On Hydrophobic Surfaces In The Presence Of Non-Condensable Gases, Xinyu Jiang
Nucleation Dynamics For Water Condensation On Hydrophobic Surfaces In The Presence Of Non-Condensable Gases, Xinyu Jiang
McKelvey School of Engineering Theses & Dissertations
The density and rate of nucleation (here-in called nucleation density rate) significantly influences the heat transfer performance during dropwise condensation, as more than 70% of the total heat transfer happen for droplets smaller than 10 μm. Based on the classical nucleation theory, supersaturation strongly influences nucleation dynamics. However, the presence of non-condensable gas can strongly reduce the nucleation density rate by forming a vapor-depleted gas diffusion layer. Therefore, this work studied the relationship between nucleation density rate and supersaturation ratio during dropwise condensation on subcooled smooth hydrophobic surfaces with the presence of non-condensable gases in a custom-built condensation chamber. High-speed …