MODELING A METAL HYDRIDE HYDROGEN STORAGE SYSTEM

1
MODELING A METAL HYDRIDE HYDROGEN STORAGE SYSTEM

• Presented by Apurba Sakti
• EGEE 520
• 1st May, 2007

2
Introduction

• Hydrogen storage in metal hydride bed
• Storage through adsorption and desorption
• Conduction, convection and diffusion
• 2D axi-symmetric model

1
1. Veziroglu et al. Int. Journal of Energy Res.
2003 271027-1038
3
Governing Equations
Energy equation
Where,
Momentum balance equation
Hydrogen Mass Balance
div
Reaction Kinetics
4
Formulation
Cooling Fluid
Initial Temperature 293K
Cooling Fluid
Axial symmetry
Constitutive Relation Darcys law Conduction,
Convection and Diffusion
Hydrogen Charge
5
Solution
Pressure
Temperature
Concentration
Concentration
6
Validation
1
Hydride formation
Temperature Profile
1. Veziroglu et al. Int. Journal of Energy Res.
2003 271027-1038
7
Parametric Study
Temperature (0.1)
Temperature (10)
8
Conclusion

• Temperature and Concentration profiles modeled
  (results agree with literature)
• Cooling fluid improves hydride formation
• Future work will include building on this
  groundwork to make the model represent more
  accurately.