Predicting growth of deposits on fuel assemblies of VVER-440 reactors

Kritskii, V. G.; Rodionov, Yu. A.; Berezina, I. G.; Fedorov, A. I.; Vitkovskii, S. L.; Shchedrin, M. G.; Galanin, A. V.; Slobodov, A. A.

doi:10.1134/s004060150905005x

Cited by 5 publications

(2 citation statements)

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“…The application including both the database and computation routines, allowed us to model and optimize the variety of systems, and to gather rich information on mechanisms of processes occurring in these systems [12][13][14]. Evaluated data was demonstrated to be in excellent agreement with experimentally observed data.…”

Section: Discussionsupporting

confidence: 65%

Thermodynamic modelling of phase-chemical transformations as the method for study of rheological properties of substances

Slobodov¹,

Uspenskiy²,

Ralys³

et al. 2015

Epitoanyag - JSBCM

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theoretical methods for describing, modelling and calculation of phase-chemical transformations without limitations on numbers of components and phases has been developed with the aim of predicting, evaluating and optimizing the rheological properties of substances and materials, based on extreme thermodynamic functions principle (maximum entropy, minimum free energy, etc.). these methods and databases were implemented in the software-information complex Astics for thermodynamic simulation and calculation of phase-chemical transformations in multi-component engineering systems of different nature. the high effectiveness of the approach is illustrated by results obtained for various natural and engineering systems and processesmineral, rock, geochemical, silicate, glass, etc.

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Section: Discussionsupporting

confidence: 65%

Thermodynamic modelling of phase-chemical transformations as the method for study of rheological properties of substances

Slobodov¹,

Uspenskiy²,

Ralys³

et al. 2015

Epitoanyag - JSBCM

View full text Add to dashboard Cite

show abstract

“…One usually uses Debye-Hückel theory and its latest extensions, allowing to widen concentration limits of its applicability [8]- [10], to take into account non-ideality of such water-electrolytic solutions. Some latest results [11] suggest that concentration limits are extended under elevated temperatures as well. However, when applying such methods, one can easily observe incorrectly defined activity coefficients, insufficiently justified use of some relationships, and getting out of concentration range of applicability.…”

Section: Thermodynamic Description and Definition Of Activity Coefficmentioning

confidence: 99%

Thermodynamic Modeling of Phase-Chemical Transformations and Equilibrium in Multicomponent Natural and Industrial Waters

Slobodov¹,

Uspenskiy²,

Yavshits³

et al. 2017

Computational and Experimental Methods in Multiphase and Complex Flow IX

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The behavior of the water carrier used in nuclear energy plants has been studied using the method of thermodynamic modeling. The problem of chemical deactivation of the equipment from corrosive deposits in the form of iron oxides and hydroxides has been solved. The proposed method for the calculation of activity coefficients and the extrapolation of thermodynamic properties of the solution components into the high-temperature region provides correctness and effectiveness of our computations and modeling. As a result, basic chemical and phase transformations occurring in the wide composition and temperature (298-623 K) range have been defined. In addition, all chemical forms in the solution and the solubility of corrosion products have been obtained. These results were useful for finding the optimal conditions for chemical equipment deactivation and improvement of the ecology and radiation situation.

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The problems of mass transfer and formation of deposits of corrosion products on fuel assemblies of a VVER-1200 reactor

Rodionov¹,

Kritskii²,

Berezina³

et al. 2014

Therm. Eng.

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Predicting growth of deposits on fuel assemblies of VVER-440 reactors

Cited by 5 publications

References 1 publication

Thermodynamic modelling of phase-chemical transformations as the method for study of rheological properties of substances

Thermodynamic modelling of phase-chemical transformations as the method for study of rheological properties of substances

Thermodynamic Modeling of Phase-Chemical Transformations and Equilibrium in Multicomponent Natural and Industrial Waters

The problems of mass transfer and formation of deposits of corrosion products on fuel assemblies of a VVER-1200 reactor

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