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Modelling and optimization of reactant gas transport in a PEM fuel cell with a transverse pin fin insert in channel flow

Obayopo, S.O. ; Bello-Ochende, T. ; Meyer, J.P.

International journal of hydrogen energy, 2012-07, Vol.37 (13), p.10286-10298 [Periódico revisado por pares]

Kidlington: Elsevier Ltd

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  • Título:
    Modelling and optimization of reactant gas transport in a PEM fuel cell with a transverse pin fin insert in channel flow
  • Autor: Obayopo, S.O. ; Bello-Ochende, T. ; Meyer, J.P.
  • Assuntos: Alternative fuels. Production and utilization ; Applied sciences ; Channel flow ; Energy ; Exact sciences and technology ; Flow resistance ; Fuels ; Hydrogen ; Mathematical optimization ; PEM fuel cell ; Pin fin ; Pressure drop ; Reactant gas
  • É parte de: International journal of hydrogen energy, 2012-07, Vol.37 (13), p.10286-10298
  • Notas: ObjectType-Article-2
    SourceType-Scholarly Journals-1
    ObjectType-Feature-1
    content type line 23
  • Descrição: A proton exchange membrane (PEM) fuel cell has many distinctive features which make it an attractive alternative clean energy source. Some of those features are low start-up, high power density, high efficiency and remote applications. In the present study, a numerical investigation was conducted to analyse the flow field and reactant gas distribution in a PEM fuel cell channel with transversely inserted pin fins in the channel flow aimed at improving reactant gas distribution. A fin configuration of small hydraulic diameter was employed to minimise the additional pressure drop. The influence of the pin fin parameters, the flow Reynolds number, the gas diffusion layer (GDL) porosity on the reactant gas transport and the pressure drop across the channel length were explored. The parameters examined were optimized using a mathematical optimization code integrated with a commercial computational fluid dynamics code. The results obtained indicate that a pin fin insert in the channel flow considerably improves fuel cell performance and that optimal pin fin geometries exist for minimized pressure drop along the fuel channel for the fuel cell model considered. The results obtained provide a novel approach for improving the design of fuel cells for optimal performance. ► We modelled and optimize reactant gas transport in a PEM fuel cell. ► Pin fin disturbance was incorporated in the flow channel. ► Pin fin parameter effect on pressure drop and fuel cell performance was examined. ► Pin fin insert in fuel channel improves PEM cell performance at reduced pressure drop. ► Optimization technique using Dynamic-Q algorithm ensures robustness of the results obtained.
  • Editor: Kidlington: Elsevier Ltd
  • Idioma: Inglês
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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