White Papers and Application Notes
Modeling and Optimization of a Mg-Metal Hydride Rectangular Tank in the Hydriding Process
E.I. Gkanas[1], S.S. Makridis[1], A.K. Stubos[2], A. Lopez[3], J. Folch[4], G. Noriega[4][1]Materials for Energy Applications Group, Department of Mechanical Engineering, University of Western Macedonia, Greece
[2]Environmental Technology Laboratory, Institute of Nuclear Technology and Radiation Protection, NCSR “Demokritos”, Greece
[3]Universidad Politécnica De Cataluña, Barcelona, Spain
[4]Cidete INGENIEROS, Barcelona, Spain
Hydrogen storage can be considered as a key factor in the development of hydrogen economy. Hydrogen storage in a magnesium hydride MgH2 is a very promising technique for numerous of reasons. Magnesium is abundant, relatively cheap, life – friendly , weight storage capacity of 7.6% and low price of Mg metal. A simulation work is presented in order to study the absorption kinetics of a Mg – metal hydride tank. Energy, mass and momentum differential equation solved simultaneously using COMSOL Multiphysics software. The main result is that the storage capacity of the MgH2 hydride is high (6 mol/m^3) and the geometry of the reactor plays an important role at the hydriding process.
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