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@ARTICLE{Hsu:904361,
      author       = {Hsu, Wei-Ting and Lee, Donghwi and Lee, Namkyu and Yun,
                      Maroosol and Cho, Hyung Hee},
      title        = {{E}nhancement of flow boiling heat transfer using
                      heterogeneous wettability patterned surfaces with varying
                      inter-spacing},
      journal      = {International journal of heat and mass transfer},
      volume       = {164},
      issn         = {0017-9310},
      address      = {Amsterdam [u.a.]},
      publisher    = {Elsevier},
      reportid     = {FZJ-2021-05931},
      pages        = {120596 -},
      year         = {2021},
      abstract     = {This study experimentally investigated the influence of
                      heterogeneous wettability-patterned surfaces with varying
                      inter-spacing on flow boiling heat transfer characteristics.
                      The test surfaces consisted of three
                      fluorooctyltrichlorosilane hydrophobic-patterned array
                      structures having a triangle, inverted triangle, and
                      circular shape on a SiO2- hydrophilic substrate, with an
                      inter-spacing of 0.75 or 1 mm. The working fluid was
                      deionized water, and the Reynolds number was 6,000 at
                      atmospheric pressure. Among the test surfaces, varying the
                      inter-spacing between neighboring hydrophobic patterns
                      slightly enhanced the heat transfer coefficient (HTC) due to
                      changing the bubble characteristics. In terms of the shape
                      effect of hydrophobic patterns, the heterogeneous
                      wettability-patterned surfaces dominated the overall flow
                      boiling heat transfer performance showing a significant
                      increase in critical heat flux (CHF) compared to the Si
                      surface, by $40–43\%.$ In addition, all of the wettability
                      test surfaces showed a markedly higher heat transfer
                      coefficient than the Si surface, by $35–163\%.$ This
                      experiment is explained by analyzing the relationship
                      between bubble lift forces and the various
                      hydrophobic-patterned shapes in a horizontal flow channel,
                      in an attempt to better understand flow boiling heat
                      transfer and optimize the pattern design.},
      cin          = {IBI-4},
      ddc          = {620},
      cid          = {I:(DE-Juel1)IBI-4-20200312},
      pnm          = {5241 - Molecular Information Processing in Cellular Systems
                      (POF4-524)},
      pid          = {G:(DE-HGF)POF4-5241},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000594277500082},
      doi          = {10.1016/j.ijheatmasstransfer.2020.120596},
      url          = {https://juser.fz-juelich.de/record/904361},
}