Two-dimensional spatial distributions of the water content of the membrane electrode assembly and the electric current generated in a polymer electrolyte fuel cell measured by 49 nuclear magnetic resonance surface coils: Dependence on gas flow rate and relative humidity of supplied gases

Ogawa, Kōichi; Sasaki, Tatsuyoshi; Yoneda, Shigeki; Tsujinaka, Kumiko; Asai, Ritsuko

doi:10.1016/j.jpowsour.2019.227254

Cited by 10 publications

(2 citation statements)

References 30 publications

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“…Typically, this method is used to detect the water content of the fuel cell. Yet, Ogawa et al [134] utilised this method to determine the current distribution by an inverse analysis that reproduces the spatial distribution of the resonance frequency of the signals. Rf coils arranged in 7 rows and 7 columns were placed into the MEA.…”

Section: Magnetic Resonancementioning

confidence: 99%

Modelling Methods and Validation Techniques for CFD Simulations of PEM Fuel Cells

et al. 2021

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The large-scale adoption of fuel cells system for sustainable power generation will require the combined use of both multidimensional models and of dedicated testing techniques, in order to evolve the current technology beyond its present status. This requires an unprecedented understanding of concurrent and interacting fluid dynamics, material and electrochemical processes. In this review article, Polymer Electrolyte Membrane Fuel Cells (PEMFC) are analysed. In the first part, the most common approaches for multi-phase/multi-physics modelling are presented in their governing equations, inherent limitations and accurate materials characterisation for diffusion layers, membrane and catalyst layers. This provides a thorough overview of key aspects to be included in multidimensional CFD models. In the second part, advanced diagnostic techniques are surveyed, indicating testing practices to accurately characterise the cell operation. These can be used to validate models, complementing the conventional observation of the current–voltage curve with key operating parameters, thus defining a joint modelling/testing environment. The two sections complement each other in portraying a unified framework of interrelated physical/chemical processes, laying the foundation of a robust and complete understanding of PEMFC. This is needed to advance the current technology and to consciously use the ever-growing availability of computational resources in the next future.

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Section: Magnetic Resonancementioning

confidence: 99%

Modelling Methods and Validation Techniques for CFD Simulations of PEM Fuel Cells

et al. 2021

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“…14,15 Samples with small through holes in the GDL and MEA CL enabled observation of the hydration and mass transport within the internal structures. [16][17][18] However, it remains difficult to visualize the internal structures and water distributions at each layer of GDLs and MEA composed of organic compounds. In this regard, high-transmission probes such as neutrons 19,20 and X-rays [21][22][23] hold promise for the in situ and non-destructive imaging of liquid water accumulation in each component of PEFCs.…”

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confidence: 99%

In situ 3D X-ray imaging of water distribution in each layer of a membrane electrode assembly of a polymer electrolyte fuel cell

Matsui,

Ohta,

Nakamura

et al. 2024

Phys. Chem. Chem. Phys.

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In-situ measurement of humidity distribution and its effect on the performance of a proton exchange membrane fuel cell

Zhao

Chan

2022

Energy

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Two-dimensional spatial distributions of the water content of the membrane electrode assembly and the electric current generated in a polymer electrolyte fuel cell measured by 49 nuclear magnetic resonance surface coils: Dependence on gas flow rate and relative humidity of supplied gases

Cited by 10 publications

References 30 publications

Modelling Methods and Validation Techniques for CFD Simulations of PEM Fuel Cells

Modelling Methods and Validation Techniques for CFD Simulations of PEM Fuel Cells

In situ 3D X-ray imaging of water distribution in each layer of a membrane electrode assembly of a polymer electrolyte fuel cell

In-situ measurement of humidity distribution and its effect on the performance of a proton exchange membrane fuel cell

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