HEAT AND MASS-TRANSFER MODELS IN METAL-HYDROGEN REACTOR

To analyse heat and mass transfer in a metal-hydrogen reactor, the fol lowing hypotheses are typically used: (i) solid and gas are at the sam e temperature, (ii) the effect of pressure variation in the reactor is negligible, (iii) the effect of hydrogen concentration on the equilib rium pressure variation is negligible. In this paper, we test the vali dity of these hypotheses by comparing numerical results obtained with and without these hypotheses. For a LaNi5-hydrogen reactor, the result s show that these hypotheses are valid under almost all conditions. Co pyright (C) 1996 International Association for Hydrogen Energy