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Thermal modeling of hydrogen storage by adsorption in a tank hydrides

Abstract : This paper summarizes numerical results of hydrogen absorption simulated in an axisymmetric tank geometry containing magnesium hydride heated to 300 °C and at moderate storage pressure 1 MPa. The governing equations are solved with a fully implicit finite volume numerical scheme used by a commercial software FLUENT. The effect of the different kinetic reaction equations modeling hydrogen absorption was studied by the introduction of a specific subroutine at each time step in order to consider which one will provide results close to available experimental results. Spatial and temporal profiles of temperature and concentration in hydride bed are plotted. Results show that suitable method for our two-dimensional study is a CV-2D technique because it generates the smallest error especially during the beginning of the reaction. Also, its computational time is the shortest one compared to the other methods.
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https://hal.univ-lorraine.fr/hal-01384715
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Submitted on : Thursday, October 20, 2016 - 1:53:58 PM
Last modification on : Monday, August 5, 2019 - 1:30:02 PM

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Karim Lahmer, Rachid Bessaih, Angel Scipioni, Mohammed El Ganaoui. Thermal modeling of hydrogen storage by adsorption in a tank hydrides. CFM 2013, 21ème Congrès Français de Mécanique, Aug 2013, Bordeaux, France. pp.A21. ⟨hal-01384715⟩

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