Modeling of Polymer Electrolyte Fuel Cells

Karpenko-Jereb, Larisa; Araki, Takuto

doi:10.1016/b978-0-12-811459-9.00003-7

Cited by 4 publications

(2 citation statements)

References 58 publications

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“…At present, the polymer electrolyte fuel cells are very extensively developed as power sources for application in portable computers, heating systems as well for leisure yachts, aircraft and vehicles [1,2,3,4]. In commercial PEM fuel cells, the most used material for catalyst is platinum.…”

Section: Introductionmentioning

confidence: 99%

Study of voltage cycling conditions on Pt oxidation and dissolution in polymer electrolyte fuel cells

Kovtunenko

Karpenko-Jereb

2021

Journal of Power Sources

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Section: Introductionmentioning

confidence: 99%

Study of voltage cycling conditions on Pt oxidation and dissolution in polymer electrolyte fuel cells

Kovtunenko

Karpenko-Jereb

2021

Journal of Power Sources

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“…However, such extended CFD models are not yet state of the art. At present, CFD models are one of the most important tools in design and development of modern electrochemical devices, such as electrolyzers [1,2], membrane reactors [3,4], solid oxide fuel cells and PEM fuel cells [5][6][7]. Currently, the CFD models are considered as virtual sensors and are used to observe local processes and effects inside the cells.…”

Section: Introductionmentioning

confidence: 99%

CFD Simulation of an Industrial PEM Fuel Cell with Local Degradation Effects

et al. 2020

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The polymer electrolyte membrane (PEM) fuel cell model of a commercial software package is presented. The basic performance model is extended by two chemical degradation effects: ionomer degradation and carbon corrosion including platinum oxidation. The ionomer degradation model describes the ionomer mass loss due to hydrogen peroxide formation and subsequent attack of the ionomer by radicals. The carbon corrosion model calculates the carbon mass loss caused by carbon oxidation and the active area reduction due to platinum oxidation. The degradation models are coupled with an agglomerate model of the catalyst layer. The model is validated against measurements on an industrial cell. For these measurements, the cell is equipped with a segmented measuring board, which is used to measure the current density distribution and high frequency resistance of every segment. In order to test the predictability of the model under different operating conditions, measurements for stoichiometry and pressure variations are carried out. Calculated and measured current density distributions of the cell, aged by an accelerated stress test, are compared for the validation of the degradation model. Moreover, 3D simulation results of the fresh and aged cells are analyzed in detail and the influence of operating conditions on fuel cell aging is pointed out.

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Unsteady 3D-CFD Simulation of a Large Active Area PEM Fuel Cell under Automotive Operation Conditions—Efficient Parameterization and Simulation Using Numerically Reduced Models

Haslinger

Lauer

2022

Processes

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Polymer electrolyte membrane fuel cells (PEMFC) are promising devices for securing future sustainable mobility. Their field of application ranges from locally emission-free stationary power generation to propulsion systems for vehicles of all kinds. Computational fluid dynamic (CFD) simulations are successfully used to access the internal states and processes with high temporal and spatial resolution. It is challenging to obtain reliable physical values of material properties for the parameterization of the numerous governing equations. The current work addresses this problem and uses numerically reduced models to parameterize sophisticated transient 3D-CFD models of a commercial PEMFC. Experimental data from a stack test stand were available as a reference for numerical optimization of selected parameters and validation purposes. With an innovative meshing approach, the homogenized channels approach, a reduction of computational cells by 87% could be achieved, thus enabling the unsteady simulation of a 120 s load step with a computational mesh that represents the entire fuel cell geometry with reasonable computational effort. The water formation and the transport processes during the load step were analyzed. The self-humidification strategy of the fuel cell gases was visualized and the uniformity of the simulated quantities was discussed. An outlook on possible future work on efficient parameterization is given.

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Modeling of Polymer Electrolyte Fuel Cells

Cited by 4 publications

References 58 publications

Study of voltage cycling conditions on Pt oxidation and dissolution in polymer electrolyte fuel cells

Study of voltage cycling conditions on Pt oxidation and dissolution in polymer electrolyte fuel cells

CFD Simulation of an Industrial PEM Fuel Cell with Local Degradation Effects

Unsteady 3D-CFD Simulation of a Large Active Area PEM Fuel Cell under Automotive Operation Conditions—Efficient Parameterization and Simulation Using Numerically Reduced Models

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