Journal
MEMBRANES
Volume 12, Issue 1, Pages -Publisher
MDPI
DOI: 10.3390/membranes12010070
Keywords
HT-PEMFC; exergetic performance coefficient; performance optimization
Categories
Funding
- National Natural Science Foundation of China [51176069]
- Scientific Research Foundation of Nanjing Forestry University [GXL2018004]
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The study analyzed the performance of a high-temperature proton exchange membrane fuel cell (HT-PEMFC) and the influence of different parameters, finding that EPC represents a better performance criterion and increasing inlet pressure and doping level can improve its efficiency.
Performance of a high-temperature proton exchange membrane fuel cell (HT-PEMFC) and the influence of different parameters on HT-PEMFC is analyzed in this study. Firstly, mathematical expression for energy efficiency, power density, exergy destruction and exergetic performance coefficient (EPC) are derived. Then, the relationship between the dimensionless power density, exergy destruction rate, exergetic performance coefficient (EPC) and energy efficiency is compared. Furthermore, the effect of flow rate, doping level, inlet pressure and film thickness are considered to evaluate the performance of HT-PEMFC. Results show that EPC not only considers exergetic loss rate to minimize exergetic loss, but also considers the power density of HT-PEMFC to maximize its power density and improve its efficiency, so EPC represents a better performance criterion. In addition, increasing inlet pressure and doping level can improve EPC and energy efficiency, respectively.
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