Vibration mode analysis of the proton exchange membrane fuel cell stack

Liu, B.; Liu, L.F.; Wei, Meng; Wu, Chengwei

doi:10.1016/j.jpowsour.2016.09.056

Cited by 16 publications

(4 citation statements)

References 29 publications

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“…Local grid refinem performed in this area using 210,000 eight-node hexahedral cells. Various mesh p ters including the transverse to longitudinal ratio, Jacobian distortion factor, parall and maximum inflection were carefully monitored and fell within reasonable rang vious studies involving single cells of similar dimensions employed 100,000 mes achieved highly accurate results [22]. In comparison, this paper utilized twice the n of meshes, ensuring that the calculation results met the required precision standar end plates, collector plates, insulating plates, and bolts were larger in size compa Mesh partitioning is a crucial and decisive step in finite element analysis as it directly impacts the accuracy and efficiency of the calculated results.…”

Section: Geometry and Meshmentioning

confidence: 98%

“…Various mesh parameters including the transverse to longitudinal ratio, Jacobian distortion factor, parallel error, and maximum inflection were carefully monitored and fell within reasonable ranges. Previous studies involving single cells of similar dimensions employed 100,000 meshes and achieved highly accurate results [22]. In comparison, this paper utilized twice the number of meshes, ensuring that the calculation results met the required precision standards.…”

Section: Geometry and Meshmentioning

confidence: 99%

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Study of Contact Pressure Distribution in Bolted Encapsulated Proton Exchange Membrane Fuel Cell Membrane Electrode Assembly

Ren,

Xing,

Cao

et al. 2023

Energies

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The distribution of contact pressure on the Membrane Electrode Assembly (MEA) significantly affects the performance of a Proton Exchange Membrane Fuel Cell (PEMFC). This paper establishes a PEM fuel cell model to investigate the impact of bolt load and its distribution, sealing gasket hardness, and size on the magnitude and distribution of contact pressure on the MEA during assembly. Thermal–mechanical coupling is employed to simulate the thermal effects resulting from chemical reactions under operational conditions. The findings reveal that there is an extremum of pressure uniformity in the range of 5000 to 6250 N for bolt loads. When the average bolt load is lower than this extremum, altering the distribution of the load can effectively enhance the uniform distribution of contact pressure. Stiffer gaskets reduce the contact pressure on the MEA while increasing the pressure on the gasket itself, resulting in reduced deformation. A rational matching relationship among gaskets, Gas Diffusion Layers (GDLs), and seal grooves is proposed. During operational conditions, thermal effects decrease the sealing performance and also impact the magnitude and distribution of contact pressure on the MEA. These outcomes provide significant guidance for the assembly and performance evaluation of PEMFCs.

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Section: Geometry and Meshmentioning

confidence: 98%

Section: Geometry and Meshmentioning

confidence: 99%

Study of Contact Pressure Distribution in Bolted Encapsulated Proton Exchange Membrane Fuel Cell Membrane Electrode Assembly

Ren,

Xing,

Cao

et al. 2023

Energies

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“…In the traditional structural design of a fuel cell stack, the assembly load is applied to the EP by bolts and nuts. Research on this type of assembly load distribution is mainly concerned with the number and distribution of bolts [43,148,181,183]. However, the assembly load distribution of the point load inevitably leads to stress concentration at the edge, as shown in Fig.…”

Section: Effect Of Assembly Load Distributionmentioning

confidence: 99%

Assembly techniques for proton exchange membrane fuel cell stack: A literature review

Song

Wang

Ding

et al. 2022

Renewable and Sustainable Energy Reviews

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“…The result showed that there was no obvious mechanical damage; however, its polarization curve fluctuated obviously at high current densities. Liu et al [3] investigated the influence of structure and clamping force on PEMFC mode shapes via finite element analysis.…”

Section: Introductionmentioning

confidence: 99%

Prediction Model of the Mechanical Behavior of a Fuel Cell Stack under Strengthened Road Vibrating Conditions

Hou

et al. 2021

Modelling and Simulation in Engineering

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In this paper, a data-oriented model has been presented by nonlinear autoregressive exogenous model (NARX) neural network, which aims at predicting the mechanical behavior of a fuel cell stack for vehicle under the real-life operational conditions. A 300-hour vibration test with reproduction of SVP road spectrum was completed on a Multi-Axial Simulation Table. At the same time, data acquisition of drive displacement and acceleration response on stack was carried out in every 50 hours. All data collected were used to train and evaluate the model based on NARX. Result shows that the prediction model built is of good precision and consistent with the actual situation.

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Vibration mode analysis of the proton exchange membrane fuel cell stack

Cited by 16 publications

References 29 publications

Study of Contact Pressure Distribution in Bolted Encapsulated Proton Exchange Membrane Fuel Cell Membrane Electrode Assembly

Study of Contact Pressure Distribution in Bolted Encapsulated Proton Exchange Membrane Fuel Cell Membrane Electrode Assembly

Assembly techniques for proton exchange membrane fuel cell stack: A literature review

Prediction Model of the Mechanical Behavior of a Fuel Cell Stack under Strengthened Road Vibrating Conditions

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