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@INPROCEEDINGS{Unije:838680,
      author       = {Unije, Unoaku Victoria and Mücke, Robert and Baumann,
                      Stefan and Guillon, Olivier},
      title        = {{M}odelling the {S}upport {E}ffect on the {F}lux {T}hrough
                      an {A}symmetric {O}xygen {T}ransport {G}as {S}eparation
                      {M}embranes},
      school       = {RWTH Aachen},
      reportid     = {FZJ-2017-07246},
      year         = {2016},
      abstract     = {Oxygen Transport Membranes (OTM) display a new technology
                      for energy-efficient oxygen generation which can be used in
                      low-pollutant power plants and oxygen generators or membrane
                      reactors in the chemical industry and health care. Low ionic
                      resistance of the membrane and high mechanical stability
                      typically demands the usage of an asymmetric design
                      comprising a thin functional membrane and a thicker porous
                      support. The overall membrane performance is strongly
                      affected by the microstructure of this porous structural
                      layer. The effect of the support on the flux performance has
                      been thus studied applying the Binary Friction Model (BFM,
                      including binary and Knudsen diffusion and viscous flow) for
                      the support together with a modified Wagner equation for the
                      dense membrane. The parameters describing the tape-cast
                      porous medium were obtained by numerical diffusion and flow
                      simulations based on micro computed tomography (µCT) data.
                      Using different flow conditions (3-end, 4-end) and oxygen as
                      feed gas, the effect of the support thickness, pore
                      diameter, position (either on the feed or permeate side) of
                      the support on the flux were investigated. Knudsen diffusion
                      was found to dominate the transport process for small pore
                      sizes (~2µm) in particular for the 3-end mode with the
                      support on the permeate side being most pore size sensitive,
                      whereas for the other configurations the viscous flow was of
                      higher significance. For typical membrane assembly geometry
                      with a membrane thickness of 20 µm and a support thickness
                      of 0.9 mm, the flux became membrane limited starting from a
                      pore size of approx. 5 µm.},
      month         = {Oct},
      date          = {2016-10-09},
      organization  = {8th International Conference on
                       Multiscale Materials Modelling, Dijon
                       (France), 9 Oct 2016 - 14 Oct 2016},
      subtyp        = {After Call},
      cin          = {IEK-1 / JARA-ENERGY},
      cid          = {I:(DE-Juel1)IEK-1-20101013 / $I:(DE-82)080011_20140620$},
      pnm          = {113 - Methods and Concepts for Material Development
                      (POF3-113) / HITEC - Helmholtz Interdisciplinary Doctoral
                      Training in Energy and Climate Research (HITEC)
                      (HITEC-20170406)},
      pid          = {G:(DE-HGF)POF3-113 / G:(DE-Juel1)HITEC-20170406},
      typ          = {PUB:(DE-HGF)24},
      url          = {https://juser.fz-juelich.de/record/838680},
}