Resumo

DE LA TORRE VALDES, Raciel; GARCIA PARRA, Lázaro R; GARCIA HERNANDEZ, Carlos R  e  GONZALEZ RODRIGUEZ, Daniel. Obtainment of a Critically Model for Equipment and Technological Systems in a Power Plant. Energética [online]. 2016, vol.37, n.3, pp. 229-239. ISSN 1815-5901.

In the present work a computational model of a planar solid oxide regenerative fuel cell is developed using the CFD software Ansys FLUENT. Steady state conditions and three-dimensional geometry of the cell are considered. The thermodynamic parameters temperature and pressure of the reacting gases are analyzed. The electrodes porosity is also studied for being a determining property in the species diffusion process and in the ohmic losses. It was obtained that to increment temperature since 923 K to 1123 K, increases the regenerative cell performance. When increasing the gases pressure or the electrodes porosity the same effect is observed, although in these cases the performance variation is minimal

Palavras-chave : computational fluid dynamics; hydrogen; high temperature electrolyzer; solid oxide fuel cell; regenerative cell.

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