The effect of operating parameters on water transport in PEM fuel cells

Sun Hong, Guo Liejin, Liu Hongtan

Research output: Contribution to journalArticle

3 Scopus citations

Abstract

Water content in the membrane and the presence of liquid water in the catalyst layers (CL) and the gas diffusion layers (GDL) play a very important role in the performance of a PEM fuel cell. To study water transport in a PEM fuel cell, a two-phase flow mathematical model is developed. This model couples the continuity equation, momentum conservative equation, species conservative equation, and water transport equation in the membrane. The modeling results of fuel cell performances agree well with measured experimental results. Then this model is used to simulate water transport and current density distribution in the cathode of a PEM fuel cell. The effects of operating pressure, cell temperature, and humidification temperatures on the net water transfer through the membrane, liquid water saturation, and current density distribution are studied.

Original languageEnglish (US)
Pages (from-to)89-100
Number of pages12
JournalHeat Transfer - Asian Research
Volume35
Issue number2
DOIs
StatePublished - Mar 1 2006

Keywords

  • Fuel cell
  • Operating parameters
  • Proton exchange membrane (PEM)
  • Water transport

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes

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