Abstract
In order to reveal the quantitative impacts of multi-factors on the performance of high-temperature proton exchange membranes fuel cell (HT-PEMFC), in this work, Taguchi experimental design, grey relational analysis, and analysis of variance are combined to explore the influence of working temperature, working pressure, anode stoichiometric ratio, GDL porosity, and membrane thickness on power density, system efficiency, and exergy efficiency of HT-PEMFC. Firstly, by Taguchi experimental design, the highest power density, system efficiency and exergy efficiency of HT-PEMFC arrives at 0.6895 W cm−2, 38.19% and 48.65%, respectively. Secondly, based on grey relational analysis and analysis of variance, the impact order of multi-factors on power density, system efficiency, and exergy efficiency of HT-PEMFC is determined. Finally, it is discovered that the membrane thickness makes the most significant contribution on the power density of HT-PEMFC, while the anode stoichiometry ratio makes the most significant contribution on the system efficiency and exergy efficiency of HT-PEMFC. This work provides a significant reference and valuable guidance for designing HT-PEMFC.
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