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To estimate quality of the technological process organization of the Bell and Sabatier type reaction the dissipation function (the generalized production of entropy for nonlinear systems) is proposed. It is based on the directly measured quantities and provides for the global approach to the study of multifunctional catalytic system. Here the invariance conditions are automatically fulfilled as well as the boundary conditions for balance of mass, motion and energy. The built dissipation function exposes contribution of the process components - diffusion, convection, chemical reaction. It develops a mechanism of the mentioned factors interaction for the different flow rates, temperatures and the components ratio in the gaseous mixtures. The dissipation functions reflects the system structure created when the stationary state is reached. The transition process shapes a system structure which in the stationary state is kept by the ultimate equilibrium state.

Application of the reversible systems as power accumulators working media generator opens the words for creation of the economic integrated life support-energy-propulsion complexes for the manned stations. The system includes on electrolyser which decomposes water into oxygen and hydrogen under influence of the solar panel electric power. From an accumulator these gases are used to ensure the periodical operation of the correction thrusters, orientation systems, in the maximum power demand modes and for cosmonauts breathing. This work describes: design principles of such type systems for the “Alpha” Station; areas of the rational application of this complex together with the comparison of its technical characteristics with the traditional power systems; technical and operational characteristics of a small experimental apparatus with the similar system.

A number of the qualitatively new technological process in the electrotechnical installation for processing the life support products are implemented when the mass transfer in the solution is controlled by application of the magnetic fields (for Hartmann numbers Ha = 0…4). Analysis of active zones in the boundary layers, in the artificial turbulent areas in the near membrane zones modelled analytically and numerically allows to formulate principles for designing the intensive and optimal technologies and for selection of the technological modes for the electrochemical system operation. The mathematical model of interaction of the hydrodynamic, electric and magnetic fields in the electrochemical system is considered.

A cycle of fundamental studies in the field of electrodynamic assemdlies of life-support and power support systems, which are related to with development of complex low consuming and closed ecologic on-board systems for orbital station of “Mir” and “Freedom” type has finished by the author. Integrated mathematical model of multicomponent electrochemical system with volumetric chemical reactions and software are developed for the analysis of mass, pulse and energy transfer processes, estimation of entropy. Result of investigation of the mathematical model of homogeneous anddouble-phase electrochemical system allowed to obtain generalized criterion equations for the mass transfer, criterion dependencies of stabilization lengths for hydrodynamics and density fields, which are very convenient in engineering for the estimation of coefficients of mass output for electrochemical concentrator of carbonic acid gas for example.