振动对燃料电池扩散层液态水传输行为探究

doi:10.19562/j.chinasae.qcgc.2023.03.007

Abstract

Abstract:

Based on the OpenFOAM platform， a 3-D gas diffusion layer （GDL） reconstruction method is developed independently in the paper， and a numerical model is established by employing the dynamic mesh method to investigate the water transport in GDL of fuel cell under various vibration conditions， including vibration directions， frequencies and amplitudes. The results show that compared to the vibration in the horizontal direction， the impact of the vibration in the vertical direction on water transport is more significant. The water saturation presents regular sinusoidal vibration characteristics in high-frequency vibration， but the periodic characteristics of water saturation in low-frequency vibration are irregular or not significant， which is close to sinusoidal change on the whole. This study has certain guiding significance for the fuel cell stack layout and shock absorption design.

Key words: PEMFC GDL, vibration, 3D numerical simulation, OpenFOAM

Daokuan Jiao,Dong Hao,Xiaobing Wang,Minghui Ma,Yanyi Zhang. Study on the Impact of Vibration on Water Transport in the Fuel Cell Gas Diffusion Layer[J].Automotive Engineering, 2023, 45(3): 402-408.

Figures/Tables 6

References 18

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Study on the Impact of Vibration on Water Transport in the Fuel Cell Gas Diffusion Layer

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