Bayat, MutlucanOzalp, MehmetGurbuz, Hueseyin2024-09-292024-09-2920222213-13882213-1396https://doi.org/10.1016/j.seta.2022.102232https://hdl.handle.net/20.500.14619/5313The performance of a high-temperature PEM fuel cell (HT-PEMFC) is highly affected by various operational and design parameters. Therefore, this paper presents comprehensive energy, entropy, and exergy analysis of the HTPEMFC by developing a novel zero-dimensional and isothermal model. The preliminary results were compared with two experimental studies by applying statistical methods, including the root mean square error (RMSE) and R-squared (R2), to validate the proposed model. Accordingly, RMSE was determined as 0.046 and 0.028, whereas R2 was computed as 0.986 and 0.991 for operating temperatures of 423 K and 433 K, respectively. Besides, some significant parametric studies were conducted to determine how these parameters impact the performance of the HT-PEMFC. As a result, increasing the operating temperature contributes to an increase of 39.71% and 38.67% in energy and exergy efficiency, respectively, whereas raising the pressure provides only a 2.66% improvement in both efficiencies compared to the base case. Furthermore, boosting the humidity level contributes to an increase of 8.02% and 8.03%, whereas reducing the thickness improves the energy and exergy efficiency by 9.94% and 9.93%, respectively. Therefore, the temperature, membrane thickness, and relative humidity have a more noticeable impact on the fuel cell performance than the operating pressure.eninfo:eu-repo/semantics/closedAccessHigh-temperaturePEM fuel cellHT-PEMFCEnergyEntropyExergy analysisDifferent operating conditionsArticle10.1016/j.seta.2022.1022322-s2.0-85129551597Q152WOS:000795977700002Q1