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MODELING A METAL HYDRIDE HYDROGEN STORAGE SYSTEM

This presentation discusses hydrogen storage in metal hydride beds through adsorption and desorption, using a 2D axi-symmetric model with conduction, convection, and diffusion. Governing equations, reaction kinetics, cooling fluid effects, and validation are explored.

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MODELING A METAL HYDRIDE HYDROGEN STORAGE SYSTEM

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  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; 27:1027-1038

  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: Darcy’s 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; 27:1027-1038

  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.

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