Bayat, MutlucanOzalp, Mehmet2024-09-292024-09-2920230360-31991879-3487https://doi.org/10.1016/j.ijhydene.2023.03.277https://hdl.handle.net/20.500.14619/4742This paper presents a one-dimensional and semi-empirical model of a high-temperature PEM fuel cell (HT-PEMFC) to determine the performance characteristics through energy, exergy, and ecological analysis. The proposed model is compared with different experimental studies and supported by a few statistical approaches to prove its accuracy. As a result, the minimum and maximum R2 values are determined to be 99.67% and 99.97%, respectively. In addition, the performance of the fuel cell is investigated under varying leakage current densities and doping levels. Accordingly, increasing the leak current density decreases the power density, net output voltage, energy efficiency, and exergy efficiency by 5.77%, 5.88%, 5.44%, and 5.48%, respectively, whereas increasing the doping level boosts these parameters by 23.07%, 11.76%, 30.25%, and 32.52%, respectively. In addition, increasing the leak density decreases all ecological functions. In contrast, raising the doping level increases the ecological parameters considerably and reduces the improvement potential. & COPY; 2023 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.eninfo:eu-repo/semantics/closedAccessEnergyExergyEcological analysisHigh -temperature PEM fuel cellHT-PEMFCLeak current densityDoping levelArticle10.1016/j.ijhydene.2023.03.2772-s2.0-851517114232322960Q12321248WOS:001035386000001Q1