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Rafat Mohammadi

Rafat Mohammadi

Academic rank: Associate Professor
ORCID: https://orcid.org/0000-0003-3675-4851
Education: PhD.
ScopusId: 6601987496
Faculty: Engineering
Address: Arak University
Phone:

Research

Title
Electrochemical Impedance Modeling of a Solid Oxide Fuel Cell Anode
Type
JournalPaper
Keywords
Electrochemical Impedance Spectroscopy, Gas Diffusion Impedance, Solid Oxide Fuel Cell, Transient Simulation, Transmission Line Model
Year
2014
Journal Fuel Cells
DOI
Researchers Rafat Mohammadi

Abstract

A simulation package for the impedance response of SOFC anodes is presented here. The model couples the gas transport in gas channels and within a porous electrode with the electrochemical kinetics. The gas phase mass transport is modeled using mass conservation equations. A transmission line model (TLM), which is suitably modified to account for the electrode microstructural details, is used for modeling the impedance arising from the electrochemical reactions. In order to solve the system of nonlinear equations, an in-house code based on the finite difference method was developed. Some of the model constants have been calibrated against A simulation package for the impedance response of SOFC anodes is presented here. The model couples the gas transport in gas channels and within a porous electrode with the electrochemical kinetics. The gas phase mass transport is modeled using mass conservation equations. A transmission line model (TLM), which is suitably modified to account for the electrode microstructural details, is used for modeling the impedance arising from the electrochemical reactions. In order to solve the system of nonlinear equations, an in-house code based on the finite difference method was developed. Some of the model constants have been calibrated against