R., . Meneceur1*,S. E., . Laouini3,M. E, H. Attia22023-05-292023-05-292020-05-01R. Meneceur1*, A. Boukhari1,2, S. E. Laouini3, M. E. H. Attia2.HEAT AND MASS TRANSFER PROCESSES OF SOLID-STATE HYDROGEN DISCHARGING: A CFD STUDY. Journal of Fundamental and sciences. vol.12, no 2. May2020. Faculty of exact sciences. university of el oued. [visited in 10/04/2020. available from [copy the link here]http://dspace.univ-eloued.dz/handle/123456789/24759articalThis article deals with the numerical simulation of a two-dimensional instantaneous heat and mass transfer processes within a commonly used intermetallic compound (a.k.a. Mischmetal) packed in a unit disc of an annulus-disc reactors, during hydrogen gas desorption. Using the finite volumes technique bundled in the OpenFOAM® CFD code, temperature and amount of desorbed hydrogen and their time-averaged quantities inside the metal-hydride packed bed are obtained for various temperatures of fluids used in heat transfer, and several outlet pressure magnitudes. Using a set of numerical simulations, we have emphasized the impacts of both parameters on metal-hydride reactor performance related to discharging time. An excellent accord was recorded for the present simulations results compared against the literature-reported experimental data [20].enMetal hydride; LaNi5; Desorption; Numerical simulation; Finite volumes.Article