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Modeling Validation and Simulation of an Anode Supported SOFC including Mass and Heat Transport, Fluid Flow and Chemical Reactions

Andersson, Martin LU ; Yuan, Jinliang LU ; Sundén, Bengt LU ; Li, Ting Shuai and Wang, Wei Guo LU (2011) ASME 2011 9th International Conference on Fuel Cell Science, Engineering and Technology. Collocated with ASME 2011 5th International Conference on Energy Sustainability, FUELCELL 2011 p.317-327
Abstract

Fuel cells are electrochemical devices that directly transform chemical energy into electricity, which are promising for future energy systems, since they are energy efficient and, when hydrogen is used as fuel, there are no direct emissions of greenhouse gases. The cell performance depends strongly on the material characteristics, the operating conditions and the chemical reactions that occur inside the cell. The chemical- And electrochemical reaction rates depend on temperature, material structure, catalytic activity, degradation and the partial pressures for the different species components. There is a lack of information, within the open literature, concerning the fundamentals behind these reactions. Experimental as well as modeling... (More)

Fuel cells are electrochemical devices that directly transform chemical energy into electricity, which are promising for future energy systems, since they are energy efficient and, when hydrogen is used as fuel, there are no direct emissions of greenhouse gases. The cell performance depends strongly on the material characteristics, the operating conditions and the chemical reactions that occur inside the cell. The chemical- And electrochemical reaction rates depend on temperature, material structure, catalytic activity, degradation and the partial pressures for the different species components. There is a lack of information, within the open literature, concerning the fundamentals behind these reactions. Experimental as well as modeling studies are needed to reduce this gap. In this study experimental data collected from an intermediate temperature standard SOFC with H2/H2O in the fuel stream are used to validate a previously developed computational fluid dynamics model based on the finite element method. The developed model is based on the governing equations of heat and mass transport and fluid flow, which are solved together with kinetic expressions for internal reforming reactions of hydrocarbon fuels and electrochemistry. This model is further updated to describe the experimental environment concerning cell design. Discussion on available active area for electrochemical reactions and average ionic transport distance from the anodic- to the cathodic three-phase boundary (TPB) are presented. The fuel inlet mole fractions are changed for the validated model to simulate a H2/H2O mixture and 30 % pre-reformed natural gas.

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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
Active area, COMSOL multiphysics, Ionic transport distance, Modeling, SOFC, Validation
host publication
ASME 2011 9th International Conference on Fuel Cell Science, Engineering and Technology. Collocated with ASME 2011 5th International Conference on Energy Sustainability, FUELCELL 2011
pages
11 pages
publisher
American Society Of Mechanical Engineers (ASME)
conference name
ASME 2011 9th International Conference on Fuel Cell Science, Engineering and Technology. Collocated with ASME 2011 5th International Conference on Energy Sustainability, FUELCELL 2011
conference location
Washington, DC, United States
conference dates
2011-08-07 - 2011-08-10
external identifiers
  • wos:000320009200043
  • scopus:84881649739
ISBN
9780791854693
DOI
10.1115/FuelCell2011-54006
language
English
LU publication?
yes
id
8d94dd82-9776-4654-9411-b39a12f84e6f (old id 1692124)
date added to LUP
2010-12-01 10:33:10
date last changed
2019-02-20 09:11:28
@inproceedings{8d94dd82-9776-4654-9411-b39a12f84e6f,
  abstract     = {<p>Fuel cells are electrochemical devices that directly transform chemical energy into electricity, which are promising for future energy systems, since they are energy efficient and, when hydrogen is used as fuel, there are no direct emissions of greenhouse gases. The cell performance depends strongly on the material characteristics, the operating conditions and the chemical reactions that occur inside the cell. The chemical- And electrochemical reaction rates depend on temperature, material structure, catalytic activity, degradation and the partial pressures for the different species components. There is a lack of information, within the open literature, concerning the fundamentals behind these reactions. Experimental as well as modeling studies are needed to reduce this gap. In this study experimental data collected from an intermediate temperature standard SOFC with H<sub>2</sub>/H<sub>2</sub>O in the fuel stream are used to validate a previously developed computational fluid dynamics model based on the finite element method. The developed model is based on the governing equations of heat and mass transport and fluid flow, which are solved together with kinetic expressions for internal reforming reactions of hydrocarbon fuels and electrochemistry. This model is further updated to describe the experimental environment concerning cell design. Discussion on available active area for electrochemical reactions and average ionic transport distance from the anodic- to the cathodic three-phase boundary (TPB) are presented. The fuel inlet mole fractions are changed for the validated model to simulate a H<sub>2</sub>/H<sub>2</sub>O mixture and 30 % pre-reformed natural gas.</p>},
  author       = {Andersson, Martin and Yuan, Jinliang and Sundén, Bengt and Li, Ting Shuai and Wang, Wei Guo},
  isbn         = {9780791854693},
  keyword      = {Active area,COMSOL multiphysics,Ionic transport distance,Modeling,SOFC,Validation},
  language     = {eng},
  location     = {Washington, DC, United States},
  month        = {12},
  pages        = {317--327},
  publisher    = {American Society Of Mechanical Engineers (ASME)},
  title        = {Modeling Validation and Simulation of an Anode Supported SOFC including Mass and Heat Transport, Fluid Flow and Chemical Reactions},
  url          = {http://dx.doi.org/10.1115/FuelCell2011-54006},
  year         = {2011},
}