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Gas Flow and Heat Transfer Analysis for an Anode Duct in Reduced Temperature SOFCs

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.209-216
Abstract
In this study, a fully three-dimensional calculation method has been further developed to simulate and analyze various processes in a thick anode duct. The composite duct consists of a porous layer, the flow duct and solid current connector. The analysis takes the electrochemical reactions into account. Momentum and heat transport together with gas species equations have been solved by coupled source terms and variable thermo-physical properties (such as density, viscosity, specific heat, etc.) of the fuel gases mixture. The unique fuel cell conditions such as the combined thermal boundary conditions on solid walls, mass transfer (generation and consumption) associated with the electrochemical reaction and gas permeation to / from the... (More)
In this study, a fully three-dimensional calculation method has been further developed to simulate and analyze various processes in a thick anode duct. The composite duct consists of a porous layer, the flow duct and solid current connector. The analysis takes the electrochemical reactions into account. Momentum and heat transport together with gas species equations have been solved by coupled source terms and variable thermo-physical properties (such as density, viscosity, specific heat, etc.) of the fuel gases mixture. The unique fuel cell conditions such as the combined thermal boundary conditions on solid walls, mass transfer (generation and consumption) associated with the electrochemical reaction and gas permeation to / from the porous electrode are applied in the analysis.

Results from this study are presented for various governing parameters in order to identify the important factors on the fuel cell performance. It is found that gas species convection has a significant contribution to the gas species transport from / to the active reaction site; consequently characteristics of both gas flow and heat transfer vary widely due to big permeation to the porous layer in the entrance region and species mass concentration related diffusion after a certain distance downstream the inlet. (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
in
Fuel Cell Science, Engineering and Technology
editor
Yuan, Jinliang; Rokni, Masoud and Sundén, Bengt
pages
209 - 216
publisher
American Society Of Mechanical Engineers (ASME)
conference name
First International Conference on Fuel Cell Science, Engineering and Technology
external identifiers
  • WOS:000222632800027
  • Scopus:1242264972
ISBN
0-7918-3668-1
language
English
LU publication?
yes
id
5ef5f7b4-c777-4d7d-b4a1-4d5a482232af (old id 621059)
date added to LUP
2007-11-28 10:48:06
date last changed
2016-10-13 04:42:57
@misc{5ef5f7b4-c777-4d7d-b4a1-4d5a482232af,
  abstract     = {In this study, a fully three-dimensional calculation method has been further developed to simulate and analyze various processes in a thick anode duct. The composite duct consists of a porous layer, the flow duct and solid current connector. The analysis takes the electrochemical reactions into account. Momentum and heat transport together with gas species equations have been solved by coupled source terms and variable thermo-physical properties (such as density, viscosity, specific heat, etc.) of the fuel gases mixture. The unique fuel cell conditions such as the combined thermal boundary conditions on solid walls, mass transfer (generation and consumption) associated with the electrochemical reaction and gas permeation to / from the porous electrode are applied in the analysis.<br/><br>
Results from this study are presented for various governing parameters in order to identify the important factors on the fuel cell performance. It is found that gas species convection has a significant contribution to the gas species transport from / to the active reaction site; consequently characteristics of both gas flow and heat transfer vary widely due to big permeation to the porous layer in the entrance region and species mass concentration related diffusion after a certain distance downstream the inlet.},
  author       = {Yuan, Jinliang and Rokni, Masoud and Sundén, Bengt},
  editor       = {Yuan, Jinliang and Rokni, Masoud and Sundén, Bengt},
  isbn         = {0-7918-3668-1},
  language     = {eng},
  pages        = {209--216},
  publisher    = {ARRAY(0x9ea3b38)},
  series       = {Fuel Cell Science, Engineering and Technology},
  title        = {Gas Flow and Heat Transfer Analysis for an Anode Duct in Reduced Temperature SOFCs},
  year         = {2003},
}