Investigation of Water Transport in Perforated Gas Diffusion Layer by Neutron Radiography

2013 ◽  
Vol 58 (1) ◽  
pp. 315-324 ◽  
Author(s):  
Z. Lu ◽  
J. Waldecker ◽  
X. Xie ◽  
M.-C. Lai ◽  
D. S. Hussey ◽  
...  
Keyword(s):  
Water Transport ◽  
Diffusion Layer ◽  
Neutron Radiography ◽  
Gas Diffusion Layer ◽  
Gas Diffusion

Water Transport in Gas Diffusion Layer of PEFC with Wettability Distribution in Thickness Direction

2019 ◽  
Vol 92 (8) ◽  
pp. 205-212
Author(s):  
Satoshi Sakaida ◽  
Kotaro Tanaka ◽  
Mitsuru Konno ◽  
Yutaka Tabe
Keyword(s):  
Water Transport ◽  
Diffusion Layer ◽  
Gas Diffusion Layer ◽  
Gas Diffusion ◽  
Thickness Direction

A Low Order Control-Oriented Model of Liquid Water Transport in PEM Fuel Cell

2008 ◽  
Author(s):  
Angelo Esposito ◽  
Cesare Pianese ◽  
Yann G. Guezennec
Keyword(s):  
Fuel Cell ◽  
Water Transport ◽  
Diffusion Layer ◽  
Liquid Water ◽  
Gas Diffusion Layer ◽  
Pem Fuel Cells ◽  
Gas Diffusion ◽  
Proton Exchange ◽  
Computational Time ◽  
Liquid Water Transport

In this work, an accurate and computationally fast model for liquid water transport within a proton exchange membrane fuel cell (PEMFC) electrode is developed by lumping the space-dependence of the relevant variables. Capillarity is considered as the main transport mechanism within the gas diffusion layer (GDL). The novelty of the model lies in the simulation of the water transport at the interface between gas diffusion layer and gas flow channel (GFC). This is achieved with a phenomenological description of the process that allows its simulation with relative simplicity. Moreover, a detailed two-dimensional visualization of such interface is achieved via geometric simulation of water droplets formation, growth, coalescence and detachment on the surface of the GDL. The accomplishment of reduced computational time and good accuracy makes the model suitable for control strategy implementation to ensure PEM fuel cells operation within optimal electrode water content. Furthermore, the model is useful for optimization analysis oriented to both PEMFC design and balance of plant.

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