Ivanovo State Power University

Ivanovo, Russia
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Glazunov V.F.,Ivanovo State Power University
Izvestiya Vysshikh Uchebnykh Zavedenii, Seriya Teknologiya Tekstil'noi Promyshlennosti | Year: 2016

The article deals with the system of automatic control of parameters of textile materials being processed on the equipment of continuous action, built on the basis of automated electric drive.

Glazunov V.F.,Ivanovo State Power University
Izvestiya Vysshikh Uchebnykh Zavedenii, Seriya Teknologiya Tekstil'noi Promyshlennosti | Year: 2016

The obtained transfer function of the process of elastic deformation of the transported material being conveyed in terms of the acting friction forces. The dependence of the transfer function of the zone of deformation of the elastic material from its speed and relative elongation.

Belyakov A.N.,Ivanovo State Power University
Izvestiya Vysshikh Uchebnykh Zavedenii, Seriya Teknologiya Tekstil'noi Promyshlennosti | Year: 2016

A mathematical description of combined mechanical processes in milling circuit for fine pigments production based on the Boltzmann equation is proposed. The problem of jet mill grinding chamber optimal profile to improve pigments production is formulated. The results of the numerical solution of the optimization problem are obtained.

Volman M.,Ivanovo State Power University
Journal of Physics: Conference Series | Year: 2017

This paper considers aspects of a program for training future nuclear power plant personnel developed by the NPP Department of Ivanovo State Power Engineering University. Computer modeling is used for numerical experiments on the kinetics of nuclear reactors in Mathcad. Simulation modeling is carried out on the computer and full-scale simulator of water-cooled power reactor for the simulation of neutron-physical reactor measurements and the start-up - shutdown process. © Published under licence by IOP Publishing Ltd.

Kolchanov N.V.,Perm State University | Arefyev I.M.,Ivanovo State Power University
International Journal of Heat and Mass Transfer | Year: 2017

Experiments on studying thermal gravitational convection in an undecane-based magnetic colloid layer are carried out. Undecane is a single-component carrier fluid. We use a cylindrical cavity with a diameter of 58 mm and a height of 2.4 mm to model a horizontal plane layer. Convection in the magnetic colloid layer heated from below is observed by means of a thermocouple system and a thermal imager. Several series of thermocouple measurements for a heat flux through the layer and thermal imaging survey for temperature fields at the magnetic colloid surface are performed at various average colloid temperatures. The average temperature increases from 20 to 55 °C in increments of 5 °C. A regime in the form of convective patterns consisting of stable downward flows in their centers and unstable upward flows along the edges is found in experiments. The Rayleigh number range for the regime shrinks as the average temperature increases. It can be seen from the convection regime map constructed in our study. We propose the hypothesis, according to which shrinkage of the Rayleigh number range and the instability of upward flows for this regime is due to the effect of aggregate sedimentation on convection in a horizontal magnetic colloid layer. Aggregate sizes decrease as the average colloid temperature rises. © 2017 Elsevier Ltd

Kiselev A.V.,University of Groningen | Krutov A.O.,Ivanovo State Power University
Journal of Physics: Conference Series | Year: 2014

We re-address the problem of construction of new infinite-dimensional completely integrable systems on the basis of known ones, and we reveal a working mechanism for such transitions. By splitting the problem's solution in two steps, we explain how the classical technique of Gardner's deformations facilitates-in a regular way-making the first, nontrivial move, in the course of which the drafts of new systems are created (often, of hydrodynamic type). The other step then amounts to higher differential order extensions of symbols in the intermediate hierarchies (e. g., by using the techniques of Dubrovin et al. [1, 2] and Ferapontov et al. [3, 4]).

This article presents the technique of assessing the maximum allowable (standard) discharge of waste waters with several harmful substances into a water reservoir. The technique makes it possible to take into account the summation of their effect provided that the limiting harmful indices are the same. The expressions for the determination of the discharge limit of waste waters have been derived from the conditions of admissibility of the effect of several harmful substances on the waters of a reservoir. Mathematical conditions of admissibility of the effect of wastewaters on a reservoir are given for the characteristic combinations of limiting harmful indices and hazard classes of several substances. The conditions of admissibility of effects are presented in the form of logical products of the sums of relative concentrations that should not exceed the value of 1. It is shown that the calculation of the process of wastewater dilution in a flowing water reservoir is possible only on the basis of a numerical method to assess the wastewater discharge limit. An example of the numerical calculation of the standard limit of industrial enterprise wastewater discharges that contain polysulfide oil, flocculant VPK-101, and fungicide captan is given to test this method. In addition to these three harmful substances, the water reservoir also contained a fourth substance, namely, Zellek-Super herbicide, above the waste discharge point. The summation of the harmful effect was taken into account for VPK-101, captan, and Zellek-Super. The reliability of the technique was tested by the calculation of concentrations of the four substances in the control point of the flowing reservoir during the estimated maximum allowable wastewater discharge. It is shown that the value of the maximum allowable discharge limit was almost two times higher for the example under consideration, taking into account that the effect of harmful substances was unidirectional, which provides a higher level of environmental safety for them. © 2017, Pleiades Publishing, Inc.

Zaytsev E.S.,Ivanovo State Power University
2016 2nd International Conference on Industrial Engineering, Applications and Manufacturing, ICIEAM 2016 - Proceedings | Year: 2017

The authors present a study that validates the typology and methods for calculating parameters of a thermal equivalent circuit and describing temperature transients in the cross section of a three-phase high voltage cable line. The method of calculating circuit parameters was examined as a principal methods of cable laying, namely, in trefoil and flat core formations. The resulting circuit takes into account cables' thermal mutual effect and explicit heat release in screens. The proposed circuit will facilitate prediction of cable heating in real time to prevent thermal breakdown of insulation. To this end, we have demonstrated the necessity of considering total earth impact on thermal transients, as forecasting requires knowledge of initial conditions. © 2016 IEEE.

Leduhovsky G.V.,Ivanovo State Power University
Thermal Engineering | Year: 2017

A mathematical model of the water decarbonization processes in atmospheric deaerators is proposed to calculate the thermal decomposition degree of hydrocarbonates in a deaerator, pH of a deaerated water sample, and the mass concentration of free carbonic acid in it on a carbon dioxide basis. The mathematical description of these processes is based on the deaeration tank water flow model implemented in the specialized software suite for the calculation of three-dimensional liquid flows, where a real water flow is a set of parallel small plug-flow reactors, and the rate constant of the reaction representing a generalized model of the thermal decomposition of hydrocarbonates with consideration for its chemical and diffusion stages is identified by experimental data. Based on the results of experimental studies performed on deaerators of different designs with and without steam bubbling in their tanks, an empirical support of this model has been developed in the form of recommended reaction order and rate constant values selected depending on the overall alkalinity of water fed into a deaerator. A self-contained mathematical description of the water decarbonization processes in deaerators has been obtained. The proposed model precision has been proven to agree with the specified metrological characteristics of the potentiometric and alkalimetric methods for measuring pH and the free carbonic acid concentration in water. This allows us to recommend the obtained model for the solution of practical problems of forming a specified amount of deaerated water via the selection of the structural and regime parameters of deaerators during their design and regime adjustment. © 2017, Pleiades Publishing, Inc.

Rebouillat S.,DuPont Company | Liksonov D.,Ivanovo State Power University
Computers and Fluids | Year: 2010

This paper describes recent studies devoted to the problem of modeling the solid-fluid interaction in partially filled liquid containers. This problem is of much importance for numerous applications, including those in the airspace industry (rockets, satellites), road and naval transportation, and has become in recent years an object of keen interest from researchers. The paper focuses in particular on the sloshing phenomenon and on the numerical approaches used to predict the sloshing wave amplitude, frequency, pressure exerted on the walls and the effect of sloshing on the stability in the container environment. Recent publications devoted to sloshing and fluid-structure interaction are reviewed and the numerical methods used in then are exposed and classified according to the problem formulations employed. They concern primarily finite-elements and finite-differences methods applied to Euler or Lagrangian fluid and solid domains, as well as the smoothed particle method. Issues related to modeling the free-surface of the fluid, fluid-solid interface and to numerical coupling are exposed. Results obtained by various numerical methods are discussed in comparison with experimental results, where possible. Applications of sloshing models in naval, aerospace and other industries are described and discussed. © 2010 Elsevier Ltd. All rights reserved.

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