AN NSF SPONSORED

CENTERSonya T. Smith- Howard University

1

• Theoretical and Computational Fluid Dynamics

• Internal/External Flows

I-V and Power Density Curves: Present Work vs Li et al2

0

0.2

0.4

0.6

0.8

1

1.2

1.4

0 0.2 0.4 0.6 0.8 1 1.2

Current Density (A/cm2)

Volta

ge (V

)

0

0.05

0.1

0.15

0.2

0.25

0.3

0.35

Power D

ensity (W/cm

2)

Li et al I-V Curve Present Work I-V Curve Li et al Power Density Curve Present Work Power Density Curve

Heat Removal and Pumping Power vs Mass Flow-rate

0

20

40

60

80

100

120

140

160

180

0 0.002 0.004 0.006 0.008 0.01 0.012

Mass Flow-rate (kg/s)

Hea

t Rem

oval

(W)

0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

Pumping Pow

er (hp)

Heat Removal Pumping Power

Performance optimization

Advanced Grid Generation Techniques

Computational domain

Effect of Optimal Coolant Channel Placement on PEM Fuel Cell Performance