Sonya T. Smith- Howard University CENTER · Sonya T. Smith- Howard University CENTER 1...

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AN NSF SPONSORED CENTER Sonya T. Smith- Howard University 1 • Theoretical and Computational Fluid Dynamics • Internal/External Flows I-V and Power Density Curves: Present Work vs Li et al 2 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) Voltage (V) 0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 Power Density (W/cm2) 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) Heat Removal (W) 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 Pumping Power (hp) Heat Removal Pumping Power Performance optimization Advanced Grid Generation Techniques Computational domain Effect of Optimal Coolant Channel Placement on PEM Fuel Cell Performance

Transcript of Sonya T. Smith- Howard University CENTER · Sonya T. Smith- Howard University CENTER 1...

Page 1: Sonya T. Smith- Howard University CENTER · Sonya T. Smith- Howard University CENTER 1 •Theoretical and Computational Fluid Dynamics •Internal/External Flows ... Voltage (V) 0

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