A three-dimensional, multicomponent, two-fluid model developed in the commercial CFD package CFX 13 (ANSYS Inc.) is used to investigate the effect of porous media compression on water transport in a proton exchange membrane fuel cell (PEMFC). The PEMFC model only consist of the cathode channel, gas diffusion layer, microporous layer, and catalyst layer, excluding the membrane and anode. In the porous media liquid water transport is described by the capillary pressure gradient, momentum loss via the Darcy-Forchheimer equation, and mass transfer between phases by a nonequilibrium phase change model. Furthermore, the presence of irreducible liquid water is taken into account. In order to account for compression, porous media morphology variations are specified based on the gas diffusion layer (GDL) through-plane strain and intrusion which are stated as a function of compression. These morphology variations affect gas and liquid water transport, and hence liquid water distribution and the risk of blocking active sites. Hence, water transport is studied under GDL compression in order to investigate the qualitative effects. Two simulation cases are compared; one with and one without compression.
Issue Section:
Research Papers
References
1.
Berning
, T.
, and Djilali
, N.
, 2003, “A 3D, Multiphase, Multicomponent Model of the Cathode and Anode of a PEM Fuel Cell
,” J. Electrochem. Soc.
, 150
, pp. A1589
–A1598
.2.
Mazunder
, S.
, and Cole
, J. V.
, 2003, “Rigorous 3-D Mathematical Modelling if PEM Fuel Cells
,” J. Electrochem. Soc.
, 150
, pp. A1510
–A1517
.3.
Wang
, C.
, 2004, “Fundamental Models for Fuel Cell Engineering
,” Chem. Rev.
, 104
, pp. 4727
–4766
.4.
Berning
, T.
, Odgaard
, M.
, and Kr
, S. K.
, 2009, “A Computational Analysis of Multiphase Flow Through PEMFC Cathode Porous Media Using the Multifluid Approach
,” J. Electrochem. Soc.
, 156
, pp. B1301
–B1311
.5.
Gurau
, V.
, Thomas
A.
, Zawodzinski
, J.
, and J.
Adin
Mann
, J.
, 2008, “Two-Phase Transport in PEM Fuel Cell Cathodes
,” ASME J. Fuel Cell Sci. Technol.
, 5
(2
), p. 021009
.6.
Cindrella
, L.
, Kannan
, A.
, Lin
, J.
, Saminathan
, K.
, Ho
, Y.
, Lin
, C.
, and Wertz
, J.
, 2009. “Gas Diffusion Layer for Proton Exchange Membrane Fuel Cells—A Review
,” J. Power Sources
, 194
(1
), pp. 146
–160
.7.
Hottinen
, T.
, Himanen
, O.
, Karvonen
, S.
, and Nitta
, I.
, 2007, “Inhomogeneous Compression of PEMFC Gas Diffusion Layer Part II. Modeling the Effect
,” J. Power Sources
, 171
, pp. 113
–121
.8.
Nitta
, I.
, Karvonen
, S.
, Himanen
, O.
, and Mikkola
, M.
, 2008, “Modelling the Effect of Inhomogeneous Compression of GDL on Local Transport Phenomena in a PEM Fuel Cell
,” Fuel Cells
, 6
, pp. 410
–421
.9.
Zhou
, P.
, and Wu
, C.
, 2007, “Numerical Study on the Compression Effect of Gas Diffusion Layer on PEMFC Performance
,” J. Power Sources
, 170
(1
), pp. 93
–100
.10.
Spiegel
, C.
, 2008, PEM Fuel Cell Modeling and Simulation Using Matlab
, Academic
, New York
.11.
Wu
, H.
, Li
, X.
, and Berg
, P.
, 2009, “On the Modeling of Water Transport in Polymer Electrolyte Membrane Fuel Cells
,” Electrochim. Acta
, 54
(27
), pp. 6913
–6927
.12.
Dong
, M.
, and Dullien
, F. A. L.
, 2006, Multiphase Flow Handbook
, Taylor & Francis
, London
.13.
Weber
, A. Z.
, and Newman
, J.
, 2004. “Modeling Transport in Polymer-Electrolyte Fuel Cells
,” Chem. Rev.
, 104
(10
), pp. 4679
–4726
.14.
Wang
, Y.
, Basu
, S.
, and Wang
, C.-Y.
, 2008, “Modeling Two-Phase Flow in PEM Fuel Cell Channels
,” J. Power Sources
, 179
(2
), pp. 603
–617
.15.
Nam
, J. H.
, and Kaviany
, M.
, 2003, “Effective Diffusivity and Water-Saturation Distribution in Single- and Two-Layer PEMFC Diffusion Medium
,” Int. J. Heat Mass Transfer
, 46
(24
), pp. 4595
–4611
.16.
Berning
, T.
, Odgaard
, M.
, and Kær
, S. K.
, 2010, “A Study of Multi-Phase Flow Through the Cathode Side of an Interdigitated Flow Field Using a Multi-Fluid Model
,” J. Power Sources
, 195
(15
), pp. 4842
–4852
.17.
Basu
, S.
, Wang
, C.-Y.
, and Chen
, K. S.
, 2009, “Phase Change in a Polymer Electrolyte Fuel Cell
,” J. Electrochem. Soc.
, 156
(6
), pp. B748
–B756
.18.
Meng
, H.
, 2007, “Numerical Investigation of Transient Responses of a PEM Fuel Cell Using a Two-Phase Non-Isothermal Mixed-Domain Model
,” J. Power Sources
, 171
(2
), pp. 738
–746
.19.
Lampinen
, M. J.
, and Fomino
, M.
, 1993, “Analysis of Free Energy and Entropy Changes for Half-Cell Reactions,” J. Electrochem. Soc.
, 140
, pp. 3537
–3546
.20.
Eikerling
, M.
, 2006, “Water Management in Cathode Catalyst Layers of PEM Fuel Cells—A Structure-Based Model
,” J. Electrochem. Soc.
, 153
, pp. E58
–E70
.21.
Udell
, K. S.
, 1985, “Heat-Transfer in Porous-Media Considering Phase-Change and Capillarity—The Heat Pipe Effect
,” Int. J. Heat Mass Transfer
, 28
, pp. 485
–495
.22.
Pasaogullari
, U.
, and Wang
, C. Y.
, 2004, “Liquid Water Transport in Gas Diffusion Layer of Polymer Electrolyte Fuel Cells
,” J. Electrochem. Soc.
, 151
(3
), pp. A399
–A406
.23.
Bird
, R. B.
, Stewart
, W. E.
, and Lightfoot
, E. N.
, 2007, Transport Phenomena
, 2nd ed., John Wiley
, New York
.24.
Gurau
, W.
, and Mann
, J. A. J.
, 2009, “A Critical Overview of Computational Fluid Dynamics Multiphase Models for Proton Exchange Membrane Fuel Cells
,” SIAM J. Appl. Math.
, 70
, pp. 410
–454
.25.
Gostick
, J. T.
, Fowler
, M. W.
, Pritzker
, M. D.
, Ioannidis
, M. A.
, and Behra
, L. M.
, 2006, “In-Plane and Through-Plane Gas Permeability of Carbon Fiber Electrode Backing Layers
,” J. Power Sources
, 162
(1
), pp. 228
–238
.26.
Fishman
, Z.
, and Bazylak
, A.
, 2011, “Heterogeneous Through-Plane Distributions of Tortuosity, Effective Diffusivity, and Permeability for PEMFC GDLs
,” J. Electrochem. Soc.
, 158
(2
), pp. B247
–B252
.27.
Lai
, Y.-H.
, Pinkhas
, A. R.
, Ji
, C.
, and Kumar
, V.
, 2008, “Channel Intrusion of Gas Diffusion Media and the Effect on Fuel Cell Performance
,” J. Power Sources
, 184
, pp. 120
–128
.28.
Chang
, W.
, Hwang
, J.
, Weng
, F.
, and Chan
, S.
, 2007, “Effect of Clamping Pressure on the Performance of a PEM Fuel Cell
,” J. Power Sources
, 166
(1)
, pp. 149
–154
.29.
Tomadakis
, M. M.
, and Robertson
, T. J.
, 2005, “Viscous Permeability of Random Fiber Structures: Comparison of Electrical and Diffusional Estimates With Experimental and Analytical Results
,” J. Composite Mater.
, 39
(2
), pp. 163
–188
.30.
Liu
, X.
, Civan
, F.
, and Evans
, R. D.
, 1995, “Correlation of the Non-Darcy Flow Coefficient
,” J. Can. Pet. Technol.
, 34
, pp. 50
–54
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