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Modeling of two-phase flow in a cathode duct of PEM fuel cells

Yuan, Jinliang LU ; Rokni, Masoud LU and Sundén, Bengt LU (2003) First International Conference on Fuel Cell Science, Engineering and Technology In Fuel Cell Science, Engineering and Technology p.463-470
Abstract
In this study, a fully three-dimensional model has been developed to simulate two-phase, multi-component gas and heat transport processes in a PEMFC cathode duct. The effects of the electrochemical reactions on the heat generation and mass transfer have been taken into account. Based on the calculated values of water vapor partial pressure and temperature, occurrence of liquid water has been predicted and its effects on the heat generation (caused by water condensation) are also considered. Variable thermal-physical properties, local pressure and non-uniform temperature are calculated and updated in the simulation. It is revealed that the mass fraction and location of the regions of the liquid water are very sensitive to the operating... (More)
In this study, a fully three-dimensional model has been developed to simulate two-phase, multi-component gas and heat transport processes in a PEMFC cathode duct. The effects of the electrochemical reactions on the heat generation and mass transfer have been taken into account. Based on the calculated values of water vapor partial pressure and temperature, occurrence of liquid water has been predicted and its effects on the heat generation (caused by water condensation) are also considered. Variable thermal-physical properties, local pressure and non-uniform temperature are calculated and updated in the simulation. It is revealed that the mass fraction and location of the regions of the liquid water are very sensitive to the operating parameters. The gas species convection transport in the porous layer is of significance and must be considered in PEMFC modeling. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
Electrochemical reactions, Membrane electrode assembly (MEA)
in
Fuel Cell Science, Engineering and Technology
pages
463 - 470
publisher
American Society Of Mechanical Engineers (ASME)
conference name
First International Conference on Fuel Cell Science, Engineering and Technology
external identifiers
  • wos:000222632800060
  • scopus:1242309960
ISBN
0791836681
language
English
LU publication?
yes
id
1e585c51-755f-45a1-b67b-559f632778ea (old id 612647)
date added to LUP
2007-11-28 11:54:26
date last changed
2017-02-19 04:31:53
@inproceedings{1e585c51-755f-45a1-b67b-559f632778ea,
  abstract     = {In this study, a fully three-dimensional model has been developed to simulate two-phase, multi-component gas and heat transport processes in a PEMFC cathode duct. The effects of the electrochemical reactions on the heat generation and mass transfer have been taken into account. Based on the calculated values of water vapor partial pressure and temperature, occurrence of liquid water has been predicted and its effects on the heat generation (caused by water condensation) are also considered. Variable thermal-physical properties, local pressure and non-uniform temperature are calculated and updated in the simulation. It is revealed that the mass fraction and location of the regions of the liquid water are very sensitive to the operating parameters. The gas species convection transport in the porous layer is of significance and must be considered in PEMFC modeling.},
  author       = {Yuan, Jinliang and Rokni, Masoud and Sundén, Bengt},
  booktitle    = {Fuel Cell Science, Engineering and Technology},
  isbn         = {0791836681},
  keyword      = {Electrochemical reactions,Membrane electrode assembly (MEA)},
  language     = {eng},
  pages        = {463--470},
  publisher    = {American Society Of Mechanical Engineers (ASME)},
  title        = {Modeling of two-phase flow in a cathode duct of PEM fuel cells},
  year         = {2003},
}