+44 (0)1509 263171
Please use this identifier to cite or link to this item:
|Title: ||Multiscale modeling of single-phase multicomponent transport in the cathode gas diffusion layer of a polymer electrolyte fuel cell|
|Authors: ||Rama, Pratap|
|Issue Date: ||2010|
|Publisher: ||© American Chemical Society|
|Citation: ||RAMA, P. ... et al, 2010. Multiscale modeling of single-phase multicomponent transport in the cathode gas diffusion layer of a polymer electrolyte fuel cell. Energy and Fuels, 24 (5), pp. 3130 - 3143.|
|Abstract: ||This research reports a feasibility study into multiscale polymer electrolyte fuel cell (PEFC) modeling through the simulation of macroscopic flow in the multilayered cell via one-dimensional (1D) electrochemical modeling, and the simulation of microscopic flow in the cathode gas diffusion layer (GDL) via three-dimensional (3D) single-phase multicomponent lattice Boltzmann (SPMC-LB) modeling. The heterogeneous porous geometry of the carbon-paper GDL is digitally reconstructed for the SPMC-LB model using X-ray computer microtomography. Boundary conditions at the channel and catalyst layer interfaces for the SPMC-LB simulations such as specie partial pressures and through-plane flowrates are determined using the validated 1D electrochemical model, which is based on the general transport equation (GTE) and volume-averaged structural properties of the GDL. The calculated pressure profiles from the two models are cross-validated to verify the SPMC-LB technique. The simulations reveal a maximum difference of 2.4% between the thickness-averaged pressures calculated by the two techniques, which is attributable to the actual heterogeneity of the porous GDL structure.|
|Description: ||This document is the Accepted Manuscript version of a Published Work that appeared in final form in
Energy and Fuels, copyright © American Chemical Society after peer review and technical editing by the publisher.
To access the final edited and published work see: http://dx.doi.org/10.1021/ef100190c|
|Sponsor: ||This research was supported by the UK
Technology Strategy Board (TSB Project No. TP/6/S/K3032H).
We acknowledge industrial partners AVL List GmbH, Intelligent
Energy Ltd., Johnson Matthey Fuel Cells Ltd., Saati Group
Inc., and Technical Fibre Products Ltd. for their support of this
|Version: ||Accepted for publication|
|Publisher Link: ||http://dx.doi.org/10.1021/ef100190c|
|Appears in Collections:||Published Articles (Aeronautical and Automotive Engineering)|
Files associated with this item:
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.