Performance analysis of cylindrical metal hydride beds with various heat exchange options
Journal of Alloys and Compounds
South African Institute for Advanced Materials Chemistry, Faculty of Natural Sciences, University of the Western Cape, Private Bag X17, Bellville, South Africa; Department of Chemical and Metallurgical Engineering, Faculty of Engineering and the Built Environment, Tshwane University of Technology, Private Bag X680, Pretoria, South Africa; Laboratory of Hydrogen Storage Materials, Institute of Problems of Chemical Physics, Russian Academy of Sciences, Prospect Semenova, 1, Chernogolovka, Russian Federation
Abstract A 3D numerical heat-and-mass transfer model was used for the comparison of H<inf>2</inf> uptake performances of powdered cylindrical MH beds comprising MmNi<inf>4.6</inf>Al<inf>0.4</inf> hydrogen storage material. The considered options of heat exchange between the MH and a heat transfer fluid included internal cooling using straight (I) or helically coiled (II) tubing, as well as external cooling of the MH bed without (III) and with (IV) transversal fins. The dynamic performances of these layouts were compared based on the numerical simulation. The effect of heat transfer coefficient was also analysed. © 2015 Elsevier B.V.
Coiled tubing; Computational fluid dynamics; Heat exchangers; Hydrides; Hydrogen; Hydrogen storage; Mass transfer; Dynamic performance; External cooling; Heat and mass transfer; Heat and mass transfer models; Internal cooling; Metal hydrides; Performance analysis; Thermal model; Heat transfer
14.604.21.0124, Ministry of Education and Science of the Russian Federation; 76735, NRF, Ministry of Education and Science of the Russian Federation; UI RFMEFI60414X0124, Ministry of Education and Science of the Russian Federation