Anti-frosting characteristics of superhydrophobic-hydrophilic wettability switchable surfaces

Lee, Hyeonho; Yang, Jung Bin; Kim, Dong Rip

doi:10.1016/j.ijheatmasstransfer.2023.125035

International Journal of Heat and Mass Transfer

2024

DOI: 10.1016/j.ijheatmasstransfer.2023.125035

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Anti-frosting characteristics of superhydrophobic-hydrophilic wettability switchable surfaces

Hyeonho Lee,

Jung Bin Yang,

Dong Rip Kim

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2024

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Cited by 6 publications

References 40 publications

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Anti‐Frosting and Defrosting Fins with Hierarchical Interlocking Structure for Enhancing Energy Utilization Efficiency of Heat Exchanger

Zhao,

Liu,

et al. 2024

Small

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Air conditioners, being an indispensable component of contemporary living, consume a significant amount of electricity every year. The accumulation of frost, dust, and water on the fins surface hinders the efficiency of the heat exchange process, thereby reducing the effectiveness of the air conditioning system. To address these limitations, this paper proposes a large‐scale and cost‐effective method combining compression molding, chemical etching, and spray coating to fabricate aluminum fins (HMNA) with hierarchical interlocking structures. The HMNA exhibits outstanding durability, passive and active anti‐icing, anti‐frosting and defrosting, and self‐cleaning capabilities associated with the robust super‐hydrophobicity. The hierarchical interlocking structure effectively enhances the physical and environmental durability of the HMNA. Most significantly, the frost time of the HMNA fins assembled heat exchanger is significantly delayed by ≈700% compared to the traditional Al fins heat exchanger, while the frost layer thickness is reduced by ≈75%. This greatly reduces the frequency with which the defrosting cycle is started, thus effectively improving the efficiency of the air conditioning system. The proposed method for economical and mass production of the HMNA fins can be an excellent candidate for the development of low energy consumption air conditioning system.

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Anti‐Frosting and Defrosting Fins with Hierarchical Interlocking Structure for Enhancing Energy Utilization Efficiency of Heat Exchanger

Zhao,

Liu,

et al. 2024

Small

View full text Add to dashboard Cite

show abstract

Design and Fabrication of Nature-Inspired Surfaces for Anti-Fouling: A Review

Yang,

Lee,

Kim

2024

Int. J. of Precis. Eng. and Manuf.-Green Tech.

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An experimental investigation of frosting characteristics considering edge effect for aperture plate lower surface affected by relative humidity

Huang,

Song,

Zhang

et al. 2024

International Communications in Heat and Mass Transfer

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Anti-frosting characteristics of superhydrophobic-hydrophilic wettability switchable surfaces

Cited by 6 publications

References 40 publications

Anti‐Frosting and Defrosting Fins with Hierarchical Interlocking Structure for Enhancing Energy Utilization Efficiency of Heat Exchanger

Anti‐Frosting and Defrosting Fins with Hierarchical Interlocking Structure for Enhancing Energy Utilization Efficiency of Heat Exchanger

Design and Fabrication of Nature-Inspired Surfaces for Anti-Fouling: A Review

An experimental investigation of frosting characteristics considering edge effect for aperture plate lower surface affected by relative humidity

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