Browsing by Author "Varentsov, Valery"

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    Application of flow-through three-dimensional electrodes for regeneration of plating iron electrolytes: 1. mathematical model [Articol]
    (Institute of Chemistry of ASM, 2014) Koshev, Alexandr; Covaliova, Olga; Varentsov, Valery
    The mathematical model of electrochemical processes distribution within the three-dimensional flow-through electrode for the system Fe(III)/Fe(II)/Fe is described in this paper, considering also the electrochemical reactions of hydrogen and molecular oxygen reduction. Possible dynamic changes in the parameters of electrode, electrolyte and the process are taken into account in the mathematical model, such as electro-conductivity of electrode material, electrolyte fl ow rate, material porosity and specific electrode surface, concentrations of electro-active substances and other characteristics within the local volume of electrode. Electrode and process characteristics are treated as time and coordinate functions within the electrode volume. The results of calculations and experimental studies of iron electroreduction are given, the analysis of the numerical modeling is provided.
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    Application of flow-through three-dimensional electrodes for regeneration of plating iron electrolytes: 2. study of process regularities by mathematical modeling [Articol]
    (Institute of Chemistry of ASM, 2014) Covaliova, Olga; Kоshev, Alexandr; Varentsov, Valery
    The main regularities of the electroactive components distribution, polarization and local current density within the depth of the threedimensional flow-through electrode have been studied using the calculation method, in dependence on the overall current density, electrode thickness and degree of its compression, solution flow velocity through the electrode, initial concentration of Fe(III) ions in the solution and electrodes brand.