On the electrode boundary conditions in the simulation of two phase flow in electrochemical cells

摘要

Electrochemical processes in industrial applications often make extensive use of energy. The electrochemical production of sodium chlorate alone, for instance, requires approximately 5000-6000 kWh of electricity per ton produced [1]. A better understanding of the fluid dynamics in the electrochemical cell, therefore, can represent a crucial step towards the construction of more cost-effective industrial set-ups. For this reason, an increasing number of studies dedicated to the computational fluid dynamics (CFD) modeling of electrochemical cells have appeared in the literature in recent years [2-6]. One of the critical aspects of the modeling concerns the boundary conditions for the gas phase at the electrode. The