Modelling Heat and Mass Transfer for Hydrogen Desorption in Metal Hydride Hydrogen Storage Tanks Using LBM Method
This paper employs a two-dimensional mathematical model to analyze heat and mass transfer during hydrogen desorption within a metal hydride hydrogen storage tank.The simulations are conducted using the lattice Boltzmann meth-od (LBM)with a D2 Q9 lattice structure.The study delves into the influence of various operational parameters,such as the heating fluid's temperature,the system's outlet pressure,and the convective heat transfer coefficients between the fluid and the metal hydride tank,on the overall efficiency of the desorption process.It is observed that the temperature of the heated fluid plays a pivotal role;an increase in this parameter leads to a substantial rise in bed temperature,which in turn dramatically accelerates hydrogen desorption.Moreover,the findings reveal that a decrease in the outlet pressure has a significant effect on hastening the desorption rate.However,it should be noted that hydrogen desorption reaches its peak enhancement only until a specific convection coefficient threshold is achieved.
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