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Modelling of co-planar type single-chamber solid oxide fuel cells (SC-SOFCs)

Modelling of co-planar type single-chamber solid oxide fuel cells (SC-SOFCs)

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Authors

  • Naveed Akhtar
  • Stephen. P. Decent
  • Daniel Loghin

Research units

Info

Original languageEnglish
TitleProceedings of the 6th International Conference on Fuel Cell Science, Engineering, and Technology - 2008
Place of publicationNew York
PublisherAmerican Society of Mechanical Engineers
Publication date2008
Pages241-255
Number of pages15
ISBN (Print)9780791843185
DOIs
StatePublished

Conference

Conference6th International Conference on Fuel Cell Science, Engineering and Technology
CityDenver
Period16/06/0818/06/08

Abstract

A two dimensional, non-isothermal numerical model of a single-chamber solid oxide fuel cell (SC-SOFC) has been developed. For the sake of simplicity in developing the model, hydrogen-air mixture (80% hydrogen, 20% air by volume which is considered as safe) has been chosen instead of hydrocarbon-air mixtures (which require complex modelling strategy such as reforming via partial oxidation, modelling of two active fuels, i.e. hydrogen and carbon monoxide). The model is based on considering yttria-stabilized zirconia (YSZ) as electrolyte supported material, nickel yttria-stabilized zirconia (Ni-YSZ) as anode and lanthanum strontium manganite (LSM) as cathode material. Effect of varying distance between anode and cathode,flow rate, temperature, porosity and electrolyte thickness has been investigated in terms of electrochemical performance. It has been found that the flow rate and distance between the electrodes pair are the most sensitive parameters in such type of fuel cells. The model was coded in a commercial software package of finite element analysis, i.e. COMSOL Multiphysics, 3.3a.

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