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A 3-D computational model was developed to examine the performance of a PEMFC using a bio-inspired flow channel design, showing improved performance compared to a conventional flow channel.

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What they did

System
MFC

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Abstract

A 3-D computational model was developed to examine the proton exchange membrane fuel cell (PEMFC) performance using Bio inspired (Bio channel) flow channel design bipolar plate. The model was developed using ANSYS FLUENT-15.0 software and simulations were carried out at 100 % humidity conditions. The parameters such as pressure distribution, hydrogen and oxygen concentrations and proton conductivity were briefly presented. The simulation results of bio channel are presented in the form of polarization curves. The results of a Bio channel compare with the conventional flow channel and observed that the bio channel gives a less pressure drop, uniform distribution of reactants and high cell voltage at a particular current density. From the observation from the polarization data, the bio channel performance was 20% higher than triple serpentine flow channel.

Key findings

  • Bio channel design resulted in a 20% higher performance compared to a triple serpentine flow channel.
  • The bio channel design showed a lower pressure drop and more uniform distribution of reactants.
  • The bio channel design resulted in a higher cell voltage at a particular current density.

Keywords

Proton exchange membrane fuel cellPolarization (electrochemistry)FluentPressure dropComputational fluid dynamicsChannel (broadcasting)

Identifiers

DOI
10.4028/www.scientific.net/msf.969.524
Journal
Materials Science Forum
Year
2019