Publication
Mathematical modeling, numerical simulation and experimental comparison of the desorption process in a metal hydride hydrogen storage system
Journal Article (2018)
Journal
International Journal of Hydrogen Energy
Pages
16929-16940
Volume
43
Number
35
Doc link
https://doi.org/10.1016/j.ijhydene.2017.12.172
File
Authors
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Busqué Somacarrera, Raquel
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Torres Cámara, Ricardo
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Grau Barceló, Joan
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Roda Serrat, Vicente
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Husar, Attila Peter
Projects associated
Abstract
A two-dimensional axisymmetric model is developed to study the hydrogen desorption reaction and its subsequent discharge in a metal hydride canister. Experimental tests are performed on an in-house fabricated setup. An extensive study on the effects of the metal properties and boundary conditions on discharging performance is carried out through non- destructive testing (NDT). Results show that the desorption process is more effective if the activation energy for desorption (Ed) and the reaction enthalpy (∆H) decrease, and when the desorption rate coefficient (Cd) and the external convection heat transfer coefficient when the bottle is being heated (h) increase. Furthermore, porosity (ε) can be useful for the design of hydrogen storage systems, with a trade-off between charge/discharge time and storage capacity. Numerical and experimental results are compared achieving a good agreement. These results can be used to select metal hydride materials and also for the future evaluation of metal hydride degradation.
Categories
control system analysis computing, power system control, storage automation.
Author keywords
Hydrogen storage; Metal hydride; Hydrogen desorption; Two-dimensional axisymmetric simulation; Experimental testing
Scientific reference
R. Busqué, R. Torres, J. Grau, V. Roda and A.P. Husar. Mathematical modeling, numerical simulation and experimental comparison of the desorption process in a metal hydride hydrogen storage system. International Journal of Hydrogen Energy, 43(35): 16929-16940, 2018.
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