An experimental study on the enhancement of the water balance, electrochemical reaction and power density of the polymer electrolyte fuel cell by under-rib convection

2011 ◽  
Vol 13 (12) ◽  
pp. 1387-1390 ◽  
Author(s):  
Kap-Seung Choi ◽  
Hyung-Man Kim ◽  
Sung-Mo Moon
Author(s):  
Yun Wang ◽  
Ken S. Chen

A multi-dimensional mathematical model is formulated for simulating the transport and electrochemical reaction phenomena in a polymer electrolyte fuel cell (PEFC). The model describes the two-phase flows, electrochemical reaction kinetics, species transport, and heat transfer, as well as their intrinsic couplings within a PEFC. Two-dimensional model predictions are computed for the two typical operating temperatures at 40 and 80 °C. Computed results reveal that liquid water level may be lower at the higher temperature operation due to water vapor phase diffusion. Detailed water and temperature distributions are displayed to explain the water and heat transport and their interaction. The computed water-content profiles are compared with available experimental data obtained by neutron imaging.


AIChE Journal ◽  
2016 ◽  
Vol 63 (1) ◽  
pp. 249-256 ◽  
Author(s):  
M. Kawase ◽  
K. Sato ◽  
R. Mitsui ◽  
H. Asonuma ◽  
M. Kageyama ◽  
...  

2002 ◽  
Vol 112 (2) ◽  
pp. 519-530 ◽  
Author(s):  
S Ahmed ◽  
J Kopasz ◽  
R Kumar ◽  
M Krumpelt

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