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- W2059357789 abstract "The water management in the air flow channel of a proton exchange membrane (PEM) fuel cell cathode is numerically investigated using the FLUENT software package. By enabling the volume of fraction (VOF) model, the air–water two-phase flow can be simulated under different operating conditions. The effects of channel surface hydrophilicity, channel geometry, and air inlet velocity on water behavior, water content inside the channel, and two-phase pressure drop are discussed in detail. The results of the quasi-steady-state simulations show that: (1) the hydrophilicity of reactant flow channel surface is critical for water management in order to facilitate water transport along channel surfaces or edges; (2) hydrophilic surfaces also increase pressure drop due to liquid water spreading; (3) a sharp corner channel design could benefit water management because it facilitates water accumulation and provides paths for water transport along channel surface opposite to gas diffusion layer; (4) the two-phase pressure drop inside the air flow channel increases almost linearly with increasing air inlet velocity." @default.
- W2059357789 created "2016-06-24" @default.
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- W2059357789 date "2007-01-01" @default.
- W2059357789 modified "2023-10-04" @default.
- W2059357789 title "Numerical study of water management in the air flow channel of a PEM fuel cell cathode" @default.
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- W2059357789 doi "https://doi.org/10.1016/j.jpowsour.2006.09.110" @default.
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