The effect of non-absorbable gas impurities on heat and mass transfer in metal-hydride devices for storage and purification of hydrogen

A mathematical model of heat and mass transfer in a metal-hydride hydrogen storage device is suggested. Results are given of calculations of the absorption of hydrogen from a gas mixture, including the mode of short-cycle absorption. Analysis is made of the effect produced by a free-convection flow of gas in a ballast volume for different orientations of the module. It is demonstrated that, under the operating conditions of the metal-hydride device being treated, the orientation of the module has a marked effect on the rate of absorption and integral characteristics of the storage device.