Electrochemical Model of Solid Oxide Fuel Cell for Simulation at the Stack Scale II: Implementation of Degradation Processes

2011 ◽  
Vol 158 (9) ◽  
pp. B1102 ◽  
Author(s):  
Arata Nakajo ◽  
Pietro Tanasini ◽  
Stefan Diethelm ◽  
Jan Van herle ◽  
Daniel Favrat
Keyword(s):  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Degradation Processes ◽  
Electrochemical Model

scholarly journals Progressive activation of degradation processes in solid oxide fuel cell stacks: Part II: Spatial distribution of the degradation

2012 ◽  
Vol 216 ◽  
pp. 434-448 ◽  
Author(s):  
Arata Nakajo ◽  
Fabian Mueller ◽  
Jacob Brouwer ◽  
Jan Van herle ◽  
Daniel Favrat
Keyword(s):  
Spatial Distribution ◽  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Degradation Processes

Electrochemical Model of a Triode Solid Oxide Fuel Cell

2015 ◽  
Vol 68 (1) ◽  
pp. 2387-2396 ◽  
Author(s):  
P. Caliandro ◽  
S. Diethelm ◽  
A. Nakajo ◽  
J. Van herle
Keyword(s):  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Electrochemical Model

An Electrochemical Model of a Solid Oxide Fuel Cell Using Experimental Data for Validation of Material Properties

2010 ◽  
Author(s):  
Gianfranco DiGiuseppe
Keyword(s):  
Experimental Data ◽  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Material Properties ◽  
Cell Polarization ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Curve Fit ◽  
Commercial Supplier ◽  
Electrochemical Model

This paper reports an electrochemical model of a Solid Oxide Fuel Cell where the model is compared against experimental data using the results from a button cell electrical test. The model fits the experimental data reasonably well using material properties found in the literature. Some of the material properties were used as fitted parameters to improve the fit, and their values compared with reported measured values. Further, cell polarization losses are explored to determine which one influences the voltage-current density characteristics the most. In comparing the material properties found in the literature with the one appropriate for the model curve fit to the experimental results, some discrepancies were observed. Hence, a better methodology is needed to understand the actual cell behavior and where improvements are needed. The method developed here is very useful for a commercial supplier of Solid Oxide Fuel Cells where button cells taken from a batch can be used to determine how good the cells are before they are installed in a stack.

Electrochemical model of the integrated planar solid oxide fuel cell (IP-SOFC)

2004 ◽  
Vol 102 (1) ◽  
pp. 61-69 ◽  
Author(s):  
Paola Costamagna ◽  
Azra Selimovic ◽  
Marco Del Borghi ◽  
Gerry Agnew
Keyword(s):  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Electrochemical Model

scholarly journals Electrochemical Model of Solid Oxide Fuel Cell for Simulation at the Stack Scale I. Calibration Procedure on Experimental Data

2011 ◽  
Vol 158 (9) ◽  
pp. B1083 ◽  
Author(s):  
Arata Nakajo ◽  
Zacharie Wuillemin ◽  
Patrick Metzger ◽  
Stefan Diethelm ◽  
Günter Schiller ◽  
...  
Keyword(s):  
Experimental Data ◽  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Calibration Procedure ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Electrochemical Model

scholarly journals Entropy generation analysis of a Solid Oxide Fuel Cell by Computational Fluid Dynamics: Influence of electrochemical model and its parameters

2018 ◽  
Vol 22 (1 Part B) ◽  
pp. 577-589 ◽  
Author(s):  
José Ramírez-Minguela ◽  
Juan Mendoza-Miranda ◽  
José Rodríguez-Muñoz ◽  
Vicente Pérez-García ◽  
Jorge Alfaro-Ayala ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Entropy Generation ◽  
Current Density ◽  
Solid Oxide ◽  
Entropy Generation Rate ◽  
Ohmic Loss ◽  
Oxide Fuel ◽  
Thermodynamic Irreversibility ◽  
Electrochemical Model

The aim of this paper is to evaluate numerically the effect of varying the electrochemical model and its parameters on the performance and entropy generation of a mono-block-layer build (MOLB) type geometry of a solid oxide fuel cell. Particularly, the influence of the exchange of current density, the electrical conductivity of the electrodes and the electrolyte has been studied and the prediction of the thermodynamic irreversibility by means of an entropy generation analysis is considered. The numerical analysis consider a 3-D CFD model that takes into account the mass transfer, heat transfer, species transport, and electrochemical reactions. Several numerical simulations were performed and each contribution to the local entropy generation rate was computed. The results show different trends of the current density, temperature, species, activation loss, ohmic loss, and concentration loss along the fuel cell. Also, the results show strong variations of the local and global entropy generation rates between the cases analyzed. It is possible to conclude that the fuel cell performance and the prediction of thermodynamic irreversibility can be significantly affected by the choice of the electrochemical models and its parameters, which must be carefully selected.

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