Condensate Halos in Condensation Frosting
Abstract The freezing of water drops on cold solid surfaces is ubiquitous in nature, and generally causes serious technological, engineering, and economic issues in industrial applications. Despite longstanding research efforts, existing knowledge on dropwise freezing is still limited, as this phase...
Saved in:
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2025-04-01
|
| Series: | Advanced Science |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/advs.202410657 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849729682218418176 |
|---|---|
| author | Songyuan Zhen Haoyan Feng Shiji Lin Yakang Jin Zhigang Li Xu Deng Elmar Bonaccurso Longquan Chen |
| author_facet | Songyuan Zhen Haoyan Feng Shiji Lin Yakang Jin Zhigang Li Xu Deng Elmar Bonaccurso Longquan Chen |
| author_sort | Songyuan Zhen |
| collection | DOAJ |
| description | Abstract The freezing of water drops on cold solid surfaces is ubiquitous in nature, and generally causes serious technological, engineering, and economic issues in industrial applications. Despite longstanding research efforts, existing knowledge on dropwise freezing is still limited, as this phase‐change phenomenon is always accompanied by complex heat and mass transfer processes. Herein, drop‐freezing phenomena in condensation frosting are investigated under standard laboratory conditions of humidity and pressure, highlighting their distinctions from those under some limiting conditions. Condensate halos consisting of massive tiny droplets are observed to form, grow, and eventually fade in a well‐defined region around freezing supercooled drops on sufficiently hydrophobic surfaces with low thermal conductivities. The detailed halo evolution is very different from that reported previously in ultradry and low ambient pressure environments, and it shows no identifiable effect on the long‐term frost propagation. By combining optical and thermal imaging techniques, this study scrutinizes the halo pattern evolution involving multiphase transitions on timescales from milliseconds to seconds, assesses the halo characteristics at each stage, and elucidates the underlying mechanisms. The work expands the fundamental understanding of complex dropwise freezing dynamics, and relevant findings can provide important guidance for developing anti‐icing/frosting strategies. |
| format | Article |
| id | doaj-art-3de699b96d4a41a69512a9708434df8d |
| institution | DOAJ |
| issn | 2198-3844 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advanced Science |
| spelling | doaj-art-3de699b96d4a41a69512a9708434df8d2025-08-20T03:09:08ZengWileyAdvanced Science2198-38442025-04-011214n/an/a10.1002/advs.202410657Condensate Halos in Condensation FrostingSongyuan Zhen0Haoyan Feng1Shiji Lin2Yakang Jin3Zhigang Li4Xu Deng5Elmar Bonaccurso6Longquan Chen7School of Physics University of Electronic Science and Technology of China Chengdu 611731 P. R. ChinaSchool of Physics University of Electronic Science and Technology of China Chengdu 611731 P. R. ChinaDepartment of Mechanical and Aerospace Engineering The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong P. R. ChinaSchool of Physics University of Electronic Science and Technology of China Chengdu 611731 P. R. ChinaDepartment of Mechanical and Aerospace Engineering The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong P. R. ChinaInstitute of Fundamental and Frontier Sciences University of Electronic Science and Technology of China Chengdu 610054 P. R. ChinaAIRBUS Central R & T, Materials X 81663 Munich GermanySchool of Physics University of Electronic Science and Technology of China Chengdu 611731 P. R. ChinaAbstract The freezing of water drops on cold solid surfaces is ubiquitous in nature, and generally causes serious technological, engineering, and economic issues in industrial applications. Despite longstanding research efforts, existing knowledge on dropwise freezing is still limited, as this phase‐change phenomenon is always accompanied by complex heat and mass transfer processes. Herein, drop‐freezing phenomena in condensation frosting are investigated under standard laboratory conditions of humidity and pressure, highlighting their distinctions from those under some limiting conditions. Condensate halos consisting of massive tiny droplets are observed to form, grow, and eventually fade in a well‐defined region around freezing supercooled drops on sufficiently hydrophobic surfaces with low thermal conductivities. The detailed halo evolution is very different from that reported previously in ultradry and low ambient pressure environments, and it shows no identifiable effect on the long‐term frost propagation. By combining optical and thermal imaging techniques, this study scrutinizes the halo pattern evolution involving multiphase transitions on timescales from milliseconds to seconds, assesses the halo characteristics at each stage, and elucidates the underlying mechanisms. The work expands the fundamental understanding of complex dropwise freezing dynamics, and relevant findings can provide important guidance for developing anti‐icing/frosting strategies.https://doi.org/10.1002/advs.202410657condensate halocondensation frostingdrop freezingexplosive evaporationheat and mass transfer |
| spellingShingle | Songyuan Zhen Haoyan Feng Shiji Lin Yakang Jin Zhigang Li Xu Deng Elmar Bonaccurso Longquan Chen Condensate Halos in Condensation Frosting Advanced Science condensate halo condensation frosting drop freezing explosive evaporation heat and mass transfer |
| title | Condensate Halos in Condensation Frosting |
| title_full | Condensate Halos in Condensation Frosting |
| title_fullStr | Condensate Halos in Condensation Frosting |
| title_full_unstemmed | Condensate Halos in Condensation Frosting |
| title_short | Condensate Halos in Condensation Frosting |
| title_sort | condensate halos in condensation frosting |
| topic | condensate halo condensation frosting drop freezing explosive evaporation heat and mass transfer |
| url | https://doi.org/10.1002/advs.202410657 |
| work_keys_str_mv | AT songyuanzhen condensatehalosincondensationfrosting AT haoyanfeng condensatehalosincondensationfrosting AT shijilin condensatehalosincondensationfrosting AT yakangjin condensatehalosincondensationfrosting AT zhigangli condensatehalosincondensationfrosting AT xudeng condensatehalosincondensationfrosting AT elmarbonaccurso condensatehalosincondensationfrosting AT longquanchen condensatehalosincondensationfrosting |