Int. J. Simul. Multisci. Des. Optim.
Volume 5, 2014
|Number of page(s)||6|
|Published online||14 March 2014|
Thermal modeling of hydrogen storage by absorption in a magnesium hydrides tank
Département de Génie Mécanique, (LEAP), Université Constantine 1, Route d’Ain El Bey, Constantine
2 Université de Lorraine, Institut Universitaire de Technologie Henri Poincaré de Longwy (LERMAB & GREEN), 186 Route de Lorraine, 54400 Cosnes-et-Romain, France
* e-mail: firstname.lastname@example.org
Accepted: 13 January 2014
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.
Key words: Hydrogen storage / Magnesium hydrides / CFD simulation / Absorption kinetic equations
© K. Lahmer et al., Published by EDP Sciences, 2014
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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