Publication
Effect of metal hydride properties in hydrogen absorption through 2D-axisymmetric modeling and experimental testing in storage canisters
Journal Article (2017)
Journal
International Journal of Hydrogen Energy
Pages
19114-19125
Volume
42
Number
30
Doc link
https://doi.org/10.1016/j.ijhydene.2017.06.125
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 absorption reaction and resultant mass and heat transport phenomena inside a metal hydride canister. The model is compared against published literature and experimental data. Experimental tests are performed on an in-house fabricated setup using different cooling scenarios. An extensive study on the effects of the metal properties on charging performance is carried out through non- destructive testing (NDT). Results show that the properties that most influence the charging performance are: absorption rate constant (Ca), activation energy (Ea) and thermal conductivity (km). A Higher porosity (ε) reduces charging time and amount of hydrogen stored while a higher cooling level produces a faster charging process. These results can be used to select metal hydride materials but also to estimate the metal hydride internal state and the process can be used for future evaluation of metal hydride degradation.
Categories
power system control, storage automation.
Author keywords
Hydrogen storage, Metal hydride, Hydrogen absorption, Two-dimensional axisymmetric simulation, Experimental testing
Scientific reference
R. Busqué, R. Torres, J. Grau, V. Roda and A.P. Husar. Effect of metal hydride properties in hydrogen absorption through 2D-axisymmetric modeling and experimental testing in storage canisters. International Journal of Hydrogen Energy, 42(30): 19114-19125, 2017.
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