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A Non-isothermal Model of a Laboratory Intermediate Temperature Fuel Cell Using PBI Doped Phosphoric Acid Membranes

Lookup NU author(s): Tiago Sousa, Professor Mohamed MamloukORCiD, Emeritus Professor Keith Scott

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Abstract

A two-dimensional non-isothermal model developed for a single intermediate temperature fuel cell with a phosphoric acid (PA) doped PBI membrane is developed. The model of the experimental cell incorporates the external heaters, and the body of the fuel cell. The catalyst layers were treated as spherical catalyst particles agglomerates with porous inter-agglomerate space. The inter-agglomerate space is filled with a mixture of electrolyte (hot PA) and PTFE. All the major transport phenomena are taken into account except the crossover of species through the membrane. This model was used to study the influence of two different geometries (along the channel direction and cross the channel direction) on performance. It became clear, through the performance analyses, that the predictions obtained by along the channel geometry did not represent the general performance trend, and therefore this geometry is not appropriate for fuel cell simulations. Results also indicate that the catalyst layer was not efficiently used, which leads to large temperature differences through the MEA.

Publication metadata

Author(s): Sousa T, Mamlouk M, Scott K

Publication type: Article

Publication status: Published

Journal: Fuel Cells

Year: 2010

Volume: 10

Issue: 6

Pages: 993-1012

Print publication date: 17/08/2010

ISSN (print): 1615-6846

ISSN (electronic): 1615-6854

Publisher: Wiley - VCH Verlag GmbH & Co. KGaA

URL: http://dx.doi.org/10.1002/fuce.200900178

DOI: 10.1002/fuce.200900178

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