Parametric study of sollid oxide fuel cells by numerical simulation

摘要

Numerical simulations have been performed with our proprietary code named SOFC3D in order to evaluate the sensitivity of the performances of a model solid oxide fuel cell (SOFC) to various parameters.these parameters were representative of the geometry of the cell,the conditions of its use and the characteristics of the materials it comprises.the results show that the electrical efficiency of a SOFC single cell is essentially dependant on its temperature.For instance,any modification of parameters which increases internal steam reforming rate of CH_4 decreases the electrical efficiency of the cell.In turn,optimising the cell electrical efficiency migth lead to a set of parameters which do not correspond to a high eelctrical efficiency of the complete SOFC system.Our results show that the SOFC3D code could be a valuable design tool as long as sufficient experimental input data obtained on an existing fuel cell is available to perform the simulations.