Electrochemical Engineering Volume 2 - Chemical Engineering Monographs Author:Author Unknown This second volume of Electrochemical Engineering again consists of three parts. The first part deals with transport phenomena in electrolysers, both of the flow-through type and with internal electrolyte recirculation. Laminar and turbulent flow, and stationary and nonstationary states are treated mathematically in a clear and illustrative fo... more »rm. Porous electrodes, which are gaining an increasing importance for electrolysers, form the subject of the second part. An account is given of their basic properties, construction elements, and theoretical models. As practical examples, the theories of the lead-acid battery electrodes and of porous oxygen and air electrodes are presented in detail. Also covered are flow-through electrochemical reactors using either a fixed or a fluidized bed of conducting particles. Finally, the third part gives a survey of mathematical formulas used in solving the relevant engineering problems. The exposition is supplemented with many figures, diagrams, and references to the original literature. It enables the reader not only to understand the problems involved, but also to use the methods to resolve his own research problems.
As with Volume I, it is assumed that the reader is familar with basic university-level electrochemistry, mathematics, and computer programming. The book is intended for students of inorganic or electrochemical technology at technical universities, postgraduate students, and electrochemical engineers.
Contents: D. Transport Phenomena in Electrolysers. Stationary states in flow-through electrolysers. Increasing the rate of electrolyte flow through an electrolyser with an electrode process controlled by mass transfer. Electrolysers with internal electrolyte recirculation. Nonstationary states in flow-through electrolysers. Flux of ions at electrodes with simultaneous gas evolution. Electrolyser with a fluidized bed of inert particles. Estimation of the terminal voltage of flow-through electrolysers. References. E. Porous Electrodes. Basic properties of porous electrodes. Construction elements of porous electrodes. Models of two-phase porous electrodes. Basic equations for two-phase porous electrodes. Case of constant concentrations. Case of variable concentrations. Models of three-phase porous electrodes. Porous electrode as an electrochemical reactor. References. F. Appendix. Ionic mobilities. Basic formulae of vector analysis in cartesian, cylindrical and spherical coordinates. Basic equations of hydrodynamics of an incompressible liquid in cartesian, cylindrical, and spherical coordinates. Difference formulae. Some difference schemes for the solution of parabolic differential equations. Finite element method. Boundary element method. References. Index.
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