Transcript Numerical study in PEM Fuel Cells 3

Numerical study in PEM Fuel Cells
3-D model
Naseri-Neshat, H., Shimpalee, S., Dutta, S., Lee, W.K., and Van Zee, J. W., 1999,
"Predicting the effect of gas-flow channel spacing on current density in PEM fuel cells," Proc. of ASME IMECE, Nashville, TN., 4, pp. 341.
FCR Laboratory
Dept. of Chemical Engineering
University of South Carolina
Numerical study in PEM Fuel Cells
3-D model
1.50 e+0 0
1.4 9 e+0 0
1.4 0 e+0 0
X=2.5E-4 M
1.4 8 e+0 0
X=5.0E-4 M
1.3 0 e+0 0
Centerline
1.4 7e+0 0
1.2 0 e+0 0
1.4 6 e+0 0
Current
Density
1.10 e+0 0
1.4 5e+0 0
Current
Density
1.4 4 e+0 0
1.0 0 e+0 0
1.4 3 e+0 0
8 .0 0 e-0 1
1.4 2 e+0 0
7.0 0 e-0 1
6 .0 0 e-0 1
1.4 1e+0 0
0
Y
Z
x=2.57E-4
x=5.14E-4
x=1.03E-3
x=1.54E-3
x=2.06E-3
x=2.57E-3
x=3.09E-3
Centerline
9 .0 0 e-0 1
0 .0 1
0 .0 2
0 .0 3
X
0 .0 4
0 .0 5
0 .0 6
0 .0 7
0 .0 8
0 .0 9
0 .1
Channel Length
5.0 0 e-0 1
0
Y
Z
FLUENT/Po s t 1.0
Tue M ar 3 0 19 9 9
Fluent Inc.
Current density at different sections, 0.16 cm wide diffusion layer.
m
m
m
m
m
m
m
0 .0 1
0 .0 2
0 .0 3
0 .0 4
0 .0 5
0 .0 6
0 .0 7
0 .0 8
0 .0 9
0 .1
Channel Length
X
Current density at different sections, 0.72 cm wide diffusion layer.
FLUENT/Po s t 1.0
Tue M ar 3 0 19 9 9
Fluent Inc.
Naseri-Neshat, H., Shimpalee, S., Dutta, S., Lee, W.K., and Van Zee, J. W., 1999,
"Predicting the effect of gas-flow channel spacing on current density in PEM fuel cells," Proc. of ASME IMECE, Nashville, TN., 4, pp. 341.
FCR Laboratory
Dept. of Chemical Engineering
University of South Carolina