An improved two-phase flow and transport model for the PEM fuel cell

Shizhong Chen, Yuhou Wu, Hong Sun, Hongtan Liu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

A two-phase flow, multi-component model has been optimized for a PEM (Proton Exchange Membrane) Fuel Cell. The modeling domain consists of the membrane, two catalyst layers, two diffusion layers, and two channels. Both liquid and gas phases are considered in the entire cathode and anode, including the channel, the diffusion layer and the catalyst layer. The Gravity effect on liquid water was considered in channels. Typical two-phase flow distributions in the cathode gas channel, gas diffuser and catalyst layer are presented. Source term and porosity term were optimized. Based on the simulation results, it is found that two-phase flow characteristics in the cathode depend on the current density, operating temperature, and cathode and anode humidification temperatures. Water mass fraction for the fuel cell with anode upward is higher than that the case with cathode-upward. Liquid water with the case of cathode-upward blocks pores in the gas diffuser layer leading to increasing the concentration polarization. Gravity of liquid water exerts the effect on the water mass fraction in the cathode.

Original languageEnglish (US)
Title of host publicationChinese Ceramics Communications
Pages691-694
Number of pages4
Edition1
DOIs
StatePublished - 2010
Event6th China International Conference on High-Performance Ceramics, CICC-6 - Harbin, China
Duration: Aug 16 2009Aug 19 2009

Publication series

NameAdvanced Materials Research
Number1
Volume105-106
ISSN (Print)1022-6680

Other

Other6th China International Conference on High-Performance Ceramics, CICC-6
CountryChina
CityHarbin
Period8/16/098/19/09

Keywords

  • Fuel cell
  • PEM
  • Two-phase flow
  • Water management

ASJC Scopus subject areas

  • Engineering(all)

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  • Cite this

    Chen, S., Wu, Y., Sun, H., & Liu, H. (2010). An improved two-phase flow and transport model for the PEM fuel cell. In Chinese Ceramics Communications (1 ed., pp. 691-694). (Advanced Materials Research; Vol. 105-106, No. 1). https://doi.org/10.4028/www.scientific.net/AMR.105-106.691