Exergetic Performance Coefficient Analysis and Optimization of a High-Temperature Proton Exchange Membrane Fuel Cell

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 ( ) are der...

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Bibliographic Details
Published in:Membranes (Basel) 2022-01, Vol.12 (1), p.70
Main Authors: Li, Dongxu, Li, Yanju, Ma, Zheshu, Zheng, Meng, Lu, Zhanghao
Format: Article
Language:English
Subjects:
Coefficients
Control theory
Destruction
Doping
Efficiency
Energy
Energy efficiency
Equilibrium
exergetic performance coefficient
Exergy
Film thickness
Flow rates
Flow velocity
Fuel cells
Fuel technology
Gases
Heat
High temperature
HT-PEMFC
Humidity
Hydrogen
Inlet pressure
Mathematical analysis
Optimization
Performance evaluation
performance optimization
Proton exchange membrane fuel cells
Protons
Thermodynamics
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Summary: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 ( ) are derived. Then, the relationship between the dimensionless power density, exergy destruction rate, exergetic performance coefficient ( ) 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 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 represents a better performance criterion. In addition, increasing inlet pressure and doping level can improve and energy efficiency, respectively.
ISSN:2077-0375
2077-0375
DOI:10.3390/membranes12010070