A computational fluid dynamics study of hydrogen bubbles in an electrochemical reactor

Brazilian Archives of Biology and Technology

Renata Da Silva Cavalcanti²  Severino Rodrigues De Farias Neto²  Eudésio Oliveira Vilar¹ 

[1] ,Laboratório de Pesquisa em Fluidodinâmica e Imagem

关键词: Hydrogen;    Bubble;    CFD;    Finite volumes;    electrochemical reactor;   

DOI  :  10.1590/S1516-89132005000400027

来源: SciELO

【 摘 要 】

Most electrochemical reactors present reactions with the growth and departure of gas bubbles which influence on the reactor hydrodynamics and this study is usually complex, representing a vast field for research. The present paper had as objective to study a bi-phase (gas-liquid) system aiming to foresee the influence of departure of hydrogen bubbles generated on effective electrode surface situated on cathodic semi-cell. Nevertheless, it was idealized that the gas was injected into the semi cell, through the effective electrode surface With this hypothesis, it was possible to study, and numerically analyze, the hydrodynamic behavior of the hydrogen bubbles in the interior of the study domain, applying concepts of computational fluid dynamics by using the computational applicative CFX-4 for the application of the MUSIG ("MUltiple-SIze-Group") model, taking into consideration the phenomena of coalescence and the distribution of the diameter of the bubbles.

【 授权许可】

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