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    Tuning substrate geometry for enhancing water condensation

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    Type
    Article
    Authors
    Jin, Yong cc
    Albaity, Mohammed
    Shi, Yusuf
    Ghaffour, NorEddine cc
    Wang, Peng cc
    KAUST Department
    Biological and Environmental Sciences and Engineering (BESE) Division
    Environmental Nanotechnology Lab
    Environmental Science and Engineering Program
    Water Desalination and Reuse Center, Division of Biological and Environmental Science and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
    Water Desalination and Reuse Research Center (WDRC)
    Date
    2019-08-29
    Online Publication Date
    2019-08-29
    Print Publication Date
    2019-12
    Embargo End Date
    2021-08-29
    Permanent link to this record
    http://hdl.handle.net/10754/656708
    
    Metadata
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    Abstract
    Water condensation is an important phase change phenomenon whose applications range from power generation to water desalination. In the present study, we compared condensation occurring on two different substrates (namely square and strip) and demonstrated the effect of substrate geometry on water condensation. It is found that condensation on different regions of the same substrate is dramatically different due to different local vapor flux. In general, the condensation rate is linearly proportional to vapor flux while average vapor flux can be improved by creating geometrical discontinuity (strip substrate) within rigid substrates. Experimental result of water collection confirms that the condensation rate is increased by around 40% on the strip substrate compared to the square substrate. This study demonstrates that water condensation can be enhanced by rationally tuning the geometry of the condensation substrate. Performance of water condensation of a specific substrate can be predicated by simulating the vapor flux over the substrate.
    Citation
    Jin, Y., Albaity, M., Shi, Y., Ghaffour, N., & Wang, P. (2019). Tuning substrate geometry for enhancing water condensation. International Journal of Heat and Mass Transfer, 144, 118627. doi:10.1016/j.ijheatmasstransfer.2019.118627
    Sponsors
    The authors are grateful to KAUST for very generous financial support
    Publisher
    Elsevier Ltd
    Journal
    International Journal of Heat and Mass Transfer
    DOI
    10.1016/j.ijheatmasstransfer.2019.118627
    Additional Links
    https://linkinghub.elsevier.com/retrieve/pii/S001793101932842X
    ae974a485f413a2113503eed53cd6c53
    10.1016/j.ijheatmasstransfer.2019.118627
    Scopus Count
    Collections
    Articles; Biological and Environmental Sciences and Engineering (BESE) Division; Environmental Science and Engineering Program; Water Desalination and Reuse Research Center (WDRC)

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