Modelling of Hydrogen Adsorption/Desorption in Metal Hydride Reactor

• Main Authors: Akanji, O, Kolesnikov, AV
• Format: Others
• Language: en
• Published: American Scientific Publishers 2010
• Subjects: Metal Hydride; Packed Bed
• Online Access: http://encore.tut.ac.za/iii/cpro/DigitalItemViewPage.external?sp=1001925

Abstract In order to make efficient hydrogen storage utilization as a fuel in fuel cell plant, there is need for its effective storage. Previous studies on hydrogen storage considered the hydrogen adsorption/ desorption in radial direction only which is one dimensional approach in this project, two dimensional computational model is implemented in CFD software to simulate the diffusion and heating of hydrogen in both radial and axial directions. The model consists of a system of partial differential equation (PDE) describing two-dimensional heat and mass transfer of hydrogen in porous matrix. Mathematical model was developed to simulate heat and mass transfer in a packed bed reactor with metal hydride as a material for hydrogen absorption and desorption. Importance of bed porosity radial distribution and correct equation for effective thermal conductivity is discussed.