Elucidating non-uniform assembling effect in large-scale PEM fuel cell by coupling mechanics and performance models

Huo, Wenming; Wu, Peng; Xie, Biao; Du, Qing; Liang, Jinqiao; Qin, Zhengguo; Zhang, Guobin; Sarani, I.; Xu, Wenzhen; Liu, Bohao; Wang, Bowen; Yin, Yulong; Lin, Jiewei; Jiao, Kui

doi:10.1016/j.enconman.2023.116668

Cited by 14 publications

(2 citation statements)

References 47 publications

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“…In PEMFC, the non-uniform distribution of contact pressures on the GDL leads to an increase in contact resistances, which increases ohmic losses, reduces porosity, and leads to the reaction gas concentration [13]. Therefore, it is essential to optimize the consistency and uniformity of the contact pressure of the GDL [14].…”

Section: The Effect Of Assembly Force Temperature and Humidity On Fue...mentioning

confidence: 99%

“…The contact resistance between the GDL and the BPP existing in PEMFC is responsible for ohmic losses during the electrochemical reactions [22]. When the assembly force increases, the contact resistance becomes smaller, but the mass transmission of fuel cells becomes weaker, leading to the increase in concentration losses [13]. An optimum PEMFC performance can be achieved by choosing an appropriate assembly force to balance the relationship between them.…”

Section: The Effect Of Assembly Force Temperature and Humidity On Fue...mentioning

confidence: 99%

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A Multi-Field Coupled PEMFC Model with Force-Temperature-Humidity and Experimental Validation for High Electrochemical Performance Design

Zhang

Chen

et al. 2023

Sustainability

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PEMFCs (Proton Exchange Membrane Fuel Cells) are commonly used in fuel cell vehicles, which facilitates energy conversation and environmental protection. The fuel cell electrochemical performance is significantly affected by the contact resistance and the GDL (Gas Diffusion Layer) porosity due to ohmic and concentration losses. However, it is difficult to obtain the exact performance prediction of the electrochemical reaction for a fuel cell design, resulting from the complex operating conditions of fuel cells coupled with the assembly force, operating temperature, relative humidity, etc. Considering the compression behavior of porosity and the contact pressure in GDLs, a force-temperature-humidity multi-field coupled model is established based on FEA (Finite Element Analysis) and CFD (Computational Fluid Dynamics) for the fuel cell electrochemical performance. Aside from that, the characteristics between the contact resistance and the contact pressure are measured and fitted through the experiments in this study. Finally, the numerical model is validated by the experiment of the fuel cell stack, and the error rate between the presented model and the experimentation of the full-dimensional stack being a maximum of 3.37%. This work provides important insight into the force-temperature-humidity coupled action as less empirical testing is required to identify the high fuel cell performance and optimize the fuel cell parameters in a full-dimensional fuel cell stack.

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Section: The Effect Of Assembly Force Temperature and Humidity On Fue...mentioning

confidence: 99%

Section: The Effect Of Assembly Force Temperature and Humidity On Fue...mentioning

confidence: 99%

A Multi-Field Coupled PEMFC Model with Force-Temperature-Humidity and Experimental Validation for High Electrochemical Performance Design

Zhang

Chen

et al. 2023

Sustainability

View full text Add to dashboard Cite

show abstract

Deep-learning accelerating topology optimization of three-dimensional coolant channels for flow and heat transfer in a proton exchange membrane fuel cell

Wang,

et al. 2023

Applied Energy

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Study on counter-flow mass transfer characteristics and performance optimization of commercial large-scale proton exchange membrane fuel cells

Lu,

Liu,

et al. 2024

Applied Energy

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Elucidating non-uniform assembling effect in large-scale PEM fuel cell by coupling mechanics and performance models

Cited by 14 publications

References 47 publications

A Multi-Field Coupled PEMFC Model with Force-Temperature-Humidity and Experimental Validation for High Electrochemical Performance Design

A Multi-Field Coupled PEMFC Model with Force-Temperature-Humidity and Experimental Validation for High Electrochemical Performance Design

Deep-learning accelerating topology optimization of three-dimensional coolant channels for flow and heat transfer in a proton exchange membrane fuel cell

Study on counter-flow mass transfer characteristics and performance optimization of commercial large-scale proton exchange membrane fuel cells

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