Macro-modeling of a Hydrogen solid storage cylindrical tank

摘要

This study aims to describe the response of a Hydrogen solid storage cylindrical tank, which is filled by a metal hydride alloy (FeTi-X) and subjected to several types of solicitations, such as: pressure, external temperature, and inlet and outlet flow. The model used in this work is classified as a macro scale model [1-2] it describes the Hydrogen absorption and desorption processes, and predicts the time-space profile of: local temperature, local reaction rate, local equilibrium pressure, local heat generated/needed, and then the homogeneous temperature, equilibrium pressure and reaction rate temporal profiles can be computed. In addition, the effect of cycling (absorption/desorption) on the reaction rate is monitored, in order to optimize the operation and get at the same time a sufficient outlet flux coupled with a high reaction rate.