Performance Analysis of a Tubular SOFC Using a Comprehensive Thermo-Electrochemical Model
Publish place: 3rd Fuel Cell Seminar of Iran
Publish Year: 1388
Type: Conference paper
Language: English
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Document National Code:
PEEL03_030
Index date: 7 August 2009
Performance Analysis of a Tubular SOFC Using a Comprehensive Thermo-Electrochemical Model abstract
This study presents a thermal and electrochemical model to evaluate the performance characteristics of a tubular solid oxide fuel cell. Butler-Volmer equation, Fick’s low and Ohm low are used to determine the polarization terms. All the variation of tubular SOFC’s operational condition such as operating pressure and temperature in electrochemical processes is taken into consideration. The effects of the cell geometry, material properties, temperature, pressure and current density on cell performance is analyzed by a parametric study. The provided model is simple and can be used in a system simulation tool designed to analysis of any combined energy conversion system included SOFC. The model predicts the effects of the input gas state variables pressure, temperature on the cell output voltage and performance. It is seen from model results that operating conditions are an important part of an optimal SOFC performance. Therefore, their change during operation, changes the performance considerably. In addition, concentration polarization is an important key associated with limiting current density.
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Performance Analysis of a Tubular SOFC Using a Comprehensive Thermo-Electrochemical Model authors
Yaser Mollayi Barzi
professor assistant, Mechanical engineering department, Islamic Azad University, Kashan branch
Majid Ghasemi
associate professor, Mechanical engineering department, KNT University of technology
Javad Ghannadan
MS student, Third Mechanical engineering department, KNT University of technology
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