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EXPERIMENTAL STUDY ON EVAPORATION OF DEFROSTING RESIDUAL DROPLET ON FIN SURFACE AND ENHANCEMENT BY ELECTRIC FIELD.

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Title: EXPERIMENTAL STUDY ON EVAPORATION OF DEFROSTING RESIDUAL DROPLET ON FIN SURFACE AND ENHANCEMENT BY ELECTRIC FIELD.
Authors: XIANG, Mengting1, WANG, Feng1 wfeng@yzu.edu.cn, DAI, Fei1
Source: Thermal Science. 2026, Vol. 30 Issue 3B, p2237-2248. 12p.
Subjects: Evaporation (Chemistry), Electric fields, Thawing, Heat pumps, Energy consumption, Fluid dynamics, Superhydrophobic surfaces
Abstract: In order to improve defrosting efficiency of air source heat pump, it is crucial to reveal the evaporation characteristics of defrosting residual droplet on fin surface and find ways to enhance the evaporation performance. In this work, the evaporation of defrosting residual droplet is investigated experimentally under different influence factors according to the defrosting condition of air source heat pump. Meanwhile, the availability of the evaporation performance enhanced by electric field is evaluated. Experimental results show that the droplet evaporates on superhydrophobic fin surface at constant contact angle and mixed modes, without the pinning stage; while it is constant contact diameter and mixed modes on bare fin surface. As the fin surface temperature increases or the droplet size decreases, the evaporation time of the droplet becomes shorter. The droplet evaporation time is 25.4% of that without electric field on bare fin surface, when the droplet volume is 1 μL and the electric intensity is 15 kV/cm. Interestingly, the electric field forces the droplet on superhydrophobic fin surface to jump, and it is no longer necessary to remove the droplet by evaporation. In a word, applied electric field can enhance the droplet evaporation, which will save defrosting energy consumption and improve defrosting efficiency of air source heat pump. [ABSTRACT FROM AUTHOR]
Copyright of Thermal Science is the property of Society of Thermal Engineers of Serbia and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
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PubType: Academic Journal
PubTypeId: academicJournal
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  Data: EXPERIMENTAL STUDY ON EVAPORATION OF DEFROSTING RESIDUAL DROPLET ON FIN SURFACE AND ENHANCEMENT BY ELECTRIC FIELD.
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  Data: <searchLink fieldCode="AR" term="%22XIANG%2C+Mengting%22">XIANG, Mengting</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22WANG%2C+Feng%22">WANG, Feng</searchLink><relatesTo>1</relatesTo><i> wfeng@yzu.edu.cn</i><br /><searchLink fieldCode="AR" term="%22DAI%2C+Fei%22">DAI, Fei</searchLink><relatesTo>1</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Thermal+Science%22">Thermal Science</searchLink>. 2026, Vol. 30 Issue 3B, p2237-2248. 12p.
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  Data: <searchLink fieldCode="DE" term="%22Evaporation+%28Chemistry%29%22">Evaporation (Chemistry)</searchLink><br /><searchLink fieldCode="DE" term="%22Electric+fields%22">Electric fields</searchLink><br /><searchLink fieldCode="DE" term="%22Thawing%22">Thawing</searchLink><br /><searchLink fieldCode="DE" term="%22Heat+pumps%22">Heat pumps</searchLink><br /><searchLink fieldCode="DE" term="%22Energy+consumption%22">Energy consumption</searchLink><br /><searchLink fieldCode="DE" term="%22Fluid+dynamics%22">Fluid dynamics</searchLink><br /><searchLink fieldCode="DE" term="%22Superhydrophobic+surfaces%22">Superhydrophobic surfaces</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: In order to improve defrosting efficiency of air source heat pump, it is crucial to reveal the evaporation characteristics of defrosting residual droplet on fin surface and find ways to enhance the evaporation performance. In this work, the evaporation of defrosting residual droplet is investigated experimentally under different influence factors according to the defrosting condition of air source heat pump. Meanwhile, the availability of the evaporation performance enhanced by electric field is evaluated. Experimental results show that the droplet evaporates on superhydrophobic fin surface at constant contact angle and mixed modes, without the pinning stage; while it is constant contact diameter and mixed modes on bare fin surface. As the fin surface temperature increases or the droplet size decreases, the evaporation time of the droplet becomes shorter. The droplet evaporation time is 25.4% of that without electric field on bare fin surface, when the droplet volume is 1 μL and the electric intensity is 15 kV/cm. Interestingly, the electric field forces the droplet on superhydrophobic fin surface to jump, and it is no longer necessary to remove the droplet by evaporation. In a word, applied electric field can enhance the droplet evaporation, which will save defrosting energy consumption and improve defrosting efficiency of air source heat pump. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Thermal Science is the property of Society of Thermal Engineers of Serbia and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.2298/TSCI250915219X
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 12
        StartPage: 2237
    Subjects:
      – SubjectFull: Evaporation (Chemistry)
        Type: general
      – SubjectFull: Electric fields
        Type: general
      – SubjectFull: Thawing
        Type: general
      – SubjectFull: Heat pumps
        Type: general
      – SubjectFull: Energy consumption
        Type: general
      – SubjectFull: Fluid dynamics
        Type: general
      – SubjectFull: Superhydrophobic surfaces
        Type: general
    Titles:
      – TitleFull: EXPERIMENTAL STUDY ON EVAPORATION OF DEFROSTING RESIDUAL DROPLET ON FIN SURFACE AND ENHANCEMENT BY ELECTRIC FIELD.
        Type: main
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          Name:
            NameFull: XIANG, Mengting
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          Name:
            NameFull: WANG, Feng
      – PersonEntity:
          Name:
            NameFull: DAI, Fei
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            – D: 15
              M: 03
              Text: 2026
              Type: published
              Y: 2026
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              Value: 03549836
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              Value: 30
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              Value: 3B
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            – TitleFull: Thermal Science
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