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@INPROCEEDINGS{Yang:1025143,
      author       = {Yang, Danan and Garg, Himani and Beale, Steven B. and
                      Andersson, Martin},
      title        = {{N}umerical {R}econstruction of {P}roton {E}xchange
                      {M}embrane {F}uel {C}ell {G}as {D}iffusion {L}ayers},
      issn         = {2151-2043},
      reportid     = {FZJ-2024-02720},
      year         = {2023},
      abstract     = {Flooding and dehydration reduce stability and power
                      performance in Proton Exchange Membrane Fuel Cells (PEMFCs).
                      The Gas Diffusion Layer (GDL) plays a crucial role in
                      facilitating reactant gas transport and removing product
                      water from the electrode. To suit various PEMFCs, GDLs with
                      different shapes have been commercialized. The impact of the
                      GDL structure on the surface-tension-driven water transport
                      behavior remains poorly understood. However, this is one
                      important aspect that can be controlled by proper design. In
                      this study, the GDL performance is investigated by comparing
                      curved and straight carbon fibers within the region.
                      Specifically, an image-processing method extracts porosity,
                      domain size, and fiber diameter from an experimental
                      image-based GDL reconstruction. These parameters are
                      utilized by in-house developed computer codes to
                      stochastically reconstruct curved and straight carbon fiber
                      GDLs, respectively. The real and reconstructed GDLs are
                      compared in terms of pore size distribution, tortuosity, and
                      permeability. Liquid transport in these GDLs and
                      corresponding gas channels is simulated using a volume of
                      fluid method in OpenFOAM 7.0.Figure 1(a) presents the
                      T-shaped simulation domain and top view of three GDLs.
                      Figure 1(b) displays the Cumulative Density Function (CDF)
                      of the pore size distribution for the three GDLs, revealing
                      that the main difference between the three GDLs lies in the
                      pore diameter range of 10-30 µm. Upon completion of the
                      research program, we aim to identify the influence of fiber
                      shape on the GDL transport properties as well as the water
                      behavior inside them.},
      month         = {May},
      date          = {2024-05-26},
      organization  = {The Electrochemical Society, San
                       Francisco (USA), 26 May 2024 - 30 May
                       2024},
      cin          = {IEK-13},
      ddc          = {540},
      cid          = {I:(DE-Juel1)IEK-13-20190226},
      pnm          = {1222 - Components and Cells (POF4-122) / 1231 -
                      Electrochemistry for Hydrogen (POF4-123)},
      pid          = {G:(DE-HGF)POF4-1222 / G:(DE-HGF)POF4-1231},
      typ          = {PUB:(DE-HGF)1},
      doi          = {10.1149/MA2023-02371718mtgabs},
      url          = {https://juser.fz-juelich.de/record/1025143},
}