Study on the flow field characteristics of a new type of plug flow electrochemical reactor with a mesh plate electrode

Abstract

In this paper, a flow field test of a plug flow electrochemical reactor with a mesh plate electrode was carried out by particle image velocimetry (PIV) technology. The internal axial velocity field and the electrode plate surface velocity fields under the simulated conditions of the reactor were analyzed under different flow rates and different plate layouts. The influencing factors of the internal flow field distribution of the reactor were investigated. A numerical fitting of unknown resistance parameters in the reactor was carried out. The experimental results showed that the internal flow field of the reactor was mainly affected by the axial flow of the liquid phase and the escape of the bubble group on the surface of the plates. At higher flow velocities, the energy loss between the reactor electrodes was mainly attributable to the energy loss caused by the mesh plate electrodes. The special geometry and mesh structure of the plate surface had a horizontal guiding effect on the axial flow of the liquid phase.