Simulation and evaluation of a hydrogen storage system using hydrogen storage alloy for a chemical CO2 fixation and utilization system

Two-dimensional model and simulation programs for designing a hydrogen stor age vessel using hydrogen absorbing alloy with tubular heat exchanger were developed with the "Flow-3D" program in which physical properties of the hy drogen storage alloy were incorporated. The calculated results showed good agreement with experimental data obtained from 10 Nm(3) scale hydrogen stor age vessel with MmNi(4.64)Al(0.36) alloy. It was concluded that this simula tion program could be an adequate tool to design a practical scale hydrogen storage system for hydrogen from solid polymer electrolyte water electroly sis and to evaluate its hydrogen storage performance. (C) 2000 Internationa l Association for Hydrogen Energy. Published by Elsevier Science Ltd. All r ights reserved.