Analyzing the Effects of Key Operational Factors on Power Density in Solid Oxide Fuel Cells

4th International Conference on Frontiers in Academic Research, Konya, Türkiye, 13 - 14 Aralık 2024, ss.298-302, (Tam Metin Bildiri)

Increasing energy demand and the need for more efficient energy conversion technologies have

increased the interest in solid oxide fuel cells (SOFCs), which generate electricity at high efficiency by

electrochemical oxidation of gaseous fuels. In this study, the effects of operating parameters such as cell

temperature, hydrogen flow rate, oxygen flow rate, and nitrogen flow rate on the power density of SOFCs

are investigated using statistical analysis methods. The experimental data were analyzed using analysis of

variance (ANOVA), main effect plots, and multiple regression techniques in Minitab software. ANOVA

results showed that hydrogen flow rate is the most effective parameter on power density with a contribution

of 43.30%. This was followed by nitrogen flow rate with 23.34% and cell temperature with 19.88% and the

effects of these parameters were statistically significant (p < 0.05). However, the effect of oxygen flow rate

was limited; contributing only 2.65% and was not statistically significant. The regression analysis yielded

a highly accurate model with an R-squared value of 99.46%, indicating that the model explained most of

the variation in power density. Hydrogen flow rate and cell temperature were found to play a critical role

in optimizing SOFCs performance. This study provides a powerful framework for understanding the impact

of operational parameters of SOFC on power density.