2023
DOI: 10.1149/11204.0273ecst
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Water Transport Modeling in a Microporous Layer for a Polymer Electrolyte Membrane Water Electrolyzer Having a Gas-Liquid Separating Interdigitated Flow Field

Hironori Nakajima,
Henrik Ekström,
Asuka Shima
et al.

Abstract: A new interdigitated flow field design for polymer electrolyte membrane electrolyzers has been developed for ground and space applications. It internally separates oxygen and liquid water, eliminating the water circulators to remove the bubbles and external gas-liquid separators with buoyancy. The capillary pressure in the hydrophobic microporous layer(MPL) of the anode porous transport layer enables the internal separation of oxygen gas and pressurized liquid water. A finite element model (COM-SOL Multiphysic… Show more

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“…The validation of the performance curve revealed consistent alignment with experimental data, effectively capturing moderate mass transfer limitations. Not only that, but such a two-phase flow numerical model was also applied in diverse applications, including developing a new flow field design 20 and conducting parametric studies. 21,22 Nevertheless, both experimental and numerical studies have often relied on intuition-based designs, which can be costly and may not necessarily yield the optimal solution.…”
mentioning
confidence: 99%
“…The validation of the performance curve revealed consistent alignment with experimental data, effectively capturing moderate mass transfer limitations. Not only that, but such a two-phase flow numerical model was also applied in diverse applications, including developing a new flow field design 20 and conducting parametric studies. 21,22 Nevertheless, both experimental and numerical studies have often relied on intuition-based designs, which can be costly and may not necessarily yield the optimal solution.…”
mentioning
confidence: 99%