Water condensate morphologies on a cantilevered microfiber

Water collection via fiber-based coalescers shows promise in mitigating increasing water scarcity, and most studies usually focus on the water collection by accumulating water through successive coalescences of fog in the absence of condensation. Here, we report on non-uniform condensate morphologie...

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Main Authors: Zhu, Fangqi, Fang, Wen-Zhen, Zhang, Hui, Zhu, Zhibing, New, Tze How, Zhao, Yugang, Yang, Chun
Other Authors: School of Mechanical and Aerospace Engineering
Format: Article
Language:English
Published: 2020
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Online Access:https://hdl.handle.net/10356/144176
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1441762023-03-04T17:23:38Z Water condensate morphologies on a cantilevered microfiber Zhu, Fangqi Fang, Wen-Zhen Zhang, Hui Zhu, Zhibing New, Tze How Zhao, Yugang Yang, Chun School of Mechanical and Aerospace Engineering Engineering::Mechanical engineering Condensation Water Collection Water collection via fiber-based coalescers shows promise in mitigating increasing water scarcity, and most studies usually focus on the water collection by accumulating water through successive coalescences of fog in the absence of condensation. Here, we report on non-uniform condensate morphologies observed during air–vapor mixture condensation on a cantilevered microfiber. Due to the competition between thermal conduction resistance within the fiber and condensation heat transfer resistance on the fiber surface, the vapor diffusive flux along the fiber varies accordingly, engendering three representative condensate morphologies. We systematically examine the effects of fiber length, diameter, and material (constantan, 316L steel, and alumel) on these condensate morphologies. Scaling analyses are also provided to reveal the underlying physics. Our experimental investigations and theoretical analyses reported in this work shed more light on air–vapor mixture condensation mechanisms that could pave the way to future condensation-associated applications. Ministry of Education (MOE) Published version We thank the financial support from the Ministry of Education of Singapore via Tier 2 Academic Research Fund (No. MOE2016-T2-1-114) and the Nanyang Technological University Ph.D. Scholarship to F.Z., H.Z., and Z.Z. 2020-10-19T08:39:53Z 2020-10-19T08:39:53Z 2020 Journal Article Zhu, F., Fang, W.-Z., Zhang, H., Zhu, Z., New, T. H., Zhao, Y., & Yang, C. (2020). Water condensate morphologies on a cantilevered microfiber. Journal of Applied Physics, 127(24), 244902-. doi:10.1063/5.0007474 0021-8979 https://hdl.handle.net/10356/144176 10.1063/5.0007474 24 127 en MOE2016-T2-1-114 Journal of Applied Physics © 2020 The Author(s). All rights reserved. This paper was published by AIP in Journal of Applied Physics and is made available with permission of The Author(s). application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Engineering::Mechanical engineering
Condensation
Water Collection
spellingShingle Engineering::Mechanical engineering
Condensation
Water Collection
Zhu, Fangqi
Fang, Wen-Zhen
Zhang, Hui
Zhu, Zhibing
New, Tze How
Zhao, Yugang
Yang, Chun
Water condensate morphologies on a cantilevered microfiber
description Water collection via fiber-based coalescers shows promise in mitigating increasing water scarcity, and most studies usually focus on the water collection by accumulating water through successive coalescences of fog in the absence of condensation. Here, we report on non-uniform condensate morphologies observed during air–vapor mixture condensation on a cantilevered microfiber. Due to the competition between thermal conduction resistance within the fiber and condensation heat transfer resistance on the fiber surface, the vapor diffusive flux along the fiber varies accordingly, engendering three representative condensate morphologies. We systematically examine the effects of fiber length, diameter, and material (constantan, 316L steel, and alumel) on these condensate morphologies. Scaling analyses are also provided to reveal the underlying physics. Our experimental investigations and theoretical analyses reported in this work shed more light on air–vapor mixture condensation mechanisms that could pave the way to future condensation-associated applications.
author2 School of Mechanical and Aerospace Engineering
author_facet School of Mechanical and Aerospace Engineering
Zhu, Fangqi
Fang, Wen-Zhen
Zhang, Hui
Zhu, Zhibing
New, Tze How
Zhao, Yugang
Yang, Chun
format Article
author Zhu, Fangqi
Fang, Wen-Zhen
Zhang, Hui
Zhu, Zhibing
New, Tze How
Zhao, Yugang
Yang, Chun
author_sort Zhu, Fangqi
title Water condensate morphologies on a cantilevered microfiber
title_short Water condensate morphologies on a cantilevered microfiber
title_full Water condensate morphologies on a cantilevered microfiber
title_fullStr Water condensate morphologies on a cantilevered microfiber
title_full_unstemmed Water condensate morphologies on a cantilevered microfiber
title_sort water condensate morphologies on a cantilevered microfiber
publishDate 2020
url https://hdl.handle.net/10356/144176
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