Inhibition of water vapor condensation by dipropylene glycol droplets on hydrophobic surfaces via vapor sink strategy

• DOI: 10.48550/arxiv.2311.03930
• Publication Date: 2023-01-01
• Authors: Zhan-Long Wang; Jun Hu; Zhen Xu; Hui Yun; Hong He
• Keywords: Sink (geography)

Condensation, frosting and icing are natural phenomena, have been enduring challenges for human society modern engineering. These phenomena pose a range of issues, from hazardous icy road surfaces, damage to electronic devices due condensation, frost accumulation on power lines aircraft. Dipropylene glycol (DG) is non-toxic, non-corrosive, biologically safe substance with excellent hygroscopicity, capable inhibiting condensation ice formation through the vapor sink strategy. However, there has limited research DG. Herein, we provides detailed study performance DG droplets in suppressing experiments theoretical analysis. Results found that dry zone ring would form around droplet cooling solid surface. The ratio dry-zone radius increases surface temperature scales as 1/(Tdew-Tc). indicated time substrate does not affect short period. When higher, decreases slightly volume; while it keeps almost still, when lower. A model also proposed reveal relationship between temperature. findings hold promise only enhancing our understanding suppression but advancing development innovative solutions various industries, including transportation, electronics, aviation, distribution.