Abstract:
The energy crisis and global warming, both of which are driven by the combustion of fossil
fuels, have drawn a lot of attention to the need for researchers to identify alternative energy
sources to minimize fossil fuel consumption. Because of the great efficiency and environmental
friendliness, solid oxide fuel cells are a viable alternative energy source. Modeling and
Simulation of the performance of Solid Oxide Fuel Cells was the goal of this work. A solid oxide
fuel cell (SOFC) steady state mathematical model has been constructed, which can predict
performance under varied operating and design conditions. The examination of critical
parameters that have a significant impact on SOFC performance was investigated with
Mathematical modeling. The calculation of independent variables of current density,
temperature, calculation of variables that are dependent on current density, and temperature were
the procedures followed in MATLAB software modeling methodologies. The modeling result
revealed that Ohmic resistance is the largest resistance, followed by activation polarization in
SOFC. Whereas, concentration polarization is the least resistance. Anode conductivity increases
at a faster rate than cathode conductivity with temperature. This indicates that the chemical
species diff uses at a faster rate at the Ni−GDC side than at the LSCF−SDC side in order to
generate electrical energy. The impact of operating and design conditions on cell performance
has also been studied. The result showed that the cell potential fall down as current density
increased, however the power density remained proportional to current density which consistent
to experimental data.
