F114 Effects of stoichiometry and gas humidification on water transport through membrane in low-humidity PEFC

2012 ◽  
Vol 2012 (0) ◽  
pp. 171-172
Author(s):  
Masaya Asa ◽  
Kosuk Nishida ◽  
Shohji Tsushima ◽  
Shuichiro Hirai
Keyword(s):  
Water Transport ◽  
Low Humidity ◽  
Gas Humidification

G204 Investigation and Control of Water Transport in Low-Humidity PEFC Using Humidity Test Paper

2011 ◽  
Vol 2011.16 (0) ◽  
pp. 447-448
Author(s):  
Eiki HIRAE ◽  
Yoma YOKOI ◽  
Kosuke NISHIDA ◽  
Shohji TSUSHIMA ◽  
Shuichiro HIRAI
Keyword(s):  
Water Transport ◽  
Test Paper ◽  
Low Humidity ◽  
And Control

Validation of a Computational Polymer Electrolyte Fuel Cell Model

2008 ◽  
Author(s):  
Richard S. Fu ◽  
Ugur Pasaogullari
Keyword(s):  
Polymer Electrolyte ◽  
Water Transport ◽  
Current Density ◽  
Flow Direction ◽  
Operating Conditions ◽  
Polymer Electrolyte Fuel Cell ◽  
Distribution Data ◽  
Anode Side ◽  
Analysis And Design ◽  
Low Humidity

Computational models of polymer electrolyte fuel cells (PEFCs) of various degrees of complexities have been reported in the recent years and are capable of simulating detail transport phenomena within the PEFCs where experimental methods cannot. A thorough model validation is necessary for the model results to be used in analysis and design. Water transport in PEFCs has a strong effect on the performance regardless of the operating conditions. In low humidity cases, especially, the amount of water exchange from anode to cathode has a strong role in governing the water content in the anode side of the polymer electrolyte membrane (PEM), consequently on the ionic conductivity of the anode side of the membrane and catalyst layer. In this work, we present results on validation of the previously developed CFD based PEFC model for low humidity conditions using current density and species distribution data along the flow direction provided in the open literature. An excellent current density profile was obtained and species profiles were found to capture the data trend well, especially for the first half of the flow distance. Our findings suggest that, an accurate water transport modeling is paramount in capturing the overall PEFC behavior.

Effect of the Micro Porous Layer on Water Transport under Low Humidity Condition

2019 ◽  
Vol 16 (2) ◽  
pp. 1635-1642 ◽  
Author(s):  
Yoshinobu Fujii ◽  
Shohji Tsushima ◽  
Katsuhiko Fukuzato ◽  
Shuichiro Hirai
Keyword(s):  
Water Transport ◽  
Porous Layer ◽  
Humidity Condition ◽  
Low Humidity
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