Thermosolutal transport phenomena in large Lewis number electrochemical systems

A detailed scaling analysis of transport phenomena by laminar natural convection along a vertical hat plate is made for multiple-component electrochemical systems. The convective flow is generated by both horizontal temperature and concentration gradients under limiting current conditions. Both binary and well-supported ternary electrolytes are considered. Thicknesses of the thermal and solutal boundary layers, concentration variations of all species in each solutal layer, and the heat and mass transport rates are estimated for electrochemical systems with large Lewis numbers and buoyancy ratios. The solutal boundary layer structure is constructed for the well-supported electrochemical system. The results from the present scaling analysis are compared with available analytical results and experimental data.