Volgograd State University of Architecture and Civil Engineering

www.vgasu.ru/eng/
Volgograd, Russia

The Volgograd State University of Architecture and Civil Engineering is one of the major Universities in Volgograd . Wikipedia.


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Korniyenko S.,Volgograd State University of Architecture and Civil Engineering
MATEC Web of Conferences | Year: 2016

The paper presents new thermal design of external wall S. Radonezhskiy temple in Volgograd is developed according to author's concept. The three-layer brick wall, including a thermal insulation layer from concrete with polystyrene aggregates, is considered. Calculation of interstitial condensation in building component is carried out according to simplified calculation method developed by the author and harmonized to ISO 13788. Analysis of calculation results shows that condensation occurs at one interface during some months but there is no accumulation over the year as all the condensate is predicted to evaporate again. Thus, there is no systematic moisture accumulation at the building component within a year. The risk of run-off from non-absorbent materials will be very low. Analysis of the evaporation rates at the interface shows that duration of drying wetted layer in external wall during initial stage does not exceed admissible values. © Owned by the authors, published by EDP Sciences, 2016.


Korniyenko S.,Volgograd State University of Architecture and Civil Engineering
Procedia Engineering | Year: 2015

The paper describes an evaluation of thermal performance of residential building envelope. Basing on the visual-andinstrumental inspection the conclusion on the non-compliance of the stated object with the requirements of the design and normative documentation was drawn. The thermovision control allowed revealing latent defects of the buildings envelopes and outlining the ways of their elimination. The numerical modeling of heat transfer made it possible to reasonably develop suggestions aimed at enhancing the thermal performance of buildings envelope elements. The integrated application of these methods gave an opportunity to determine the thermotechnical state of the object in whole. The results of the study serve as a basis for the development of methodological foundations for design, construction, operation and reconstruction of energyefficient buildings. © 2015 Published by Elsevier Ltd.


Belonenko M.B.,Volgograd State Pedagogical University | Fedorov E.G.,Volgograd State University of Architecture and Civil Engineering
Optics and Spectroscopy (English translation of Optika i Spektroskopiya) | Year: 2011

We considered the propagation of laser monochromatic radiation in a superlattice that contains regions with an elevated concentration of carriers. The model of the energy spectrum of electrons is chosen in the strong coupling approximation. The electromagnetic field is described quasiclassically with Maxwell equations, which, as applied to the problem under study, are reduced to a non-one-dimensional sine-Gordon wave equation for the vector-potential. We analyzed the wave equation in the approximation of slowly varying amplitudes and phases and obtained and numerically solved an effective equation that describes the electromagnetic field in the superlattice. We studied different regimes of propagation of laser radiation, analyzed diffraction by regions with an elevated electron concentration. © 2011 Pleiades Publishing, Ltd.


Korniyenko S.V.,Volgograd State University of Architecture and Civil Engineering
Magazine of Civil Engineering | Year: 2013

This paper is devoted to the solution of an actual problem - energy saving and increase of energy efficiency of buildings. The express method of settlement and experimental control of energy saving on the basis of the specific characteristic of thermal energy consumption for heating and ventilation was developed. Advantage of the method is that it allows assessing the efficiency of a complex of energy saving actions without measurements of summary solar radiation under the valid conditions of overcast and domestic thermal emissions at comparable to GOST 31168 accuracy of results. On the basis of the developed method assessment of efficiency of a complex of the energy saving actions realized in an operated multicompartment residential building was made. Based on the results of the conducted pilot researches it was established that the specified building met the requirements for energy saving according to the SNIP 23-02, a class of energy saving for the building was C (normal). Method was tested on the results of the pilot studies executed for the same building in accordance with GOST 31168. Approbation confirmed the reliability of the results received by an offered method. The method can be used during the monitoring of energy consumption and the energy audit of buildings.


Belonenko M.B.,Volgograd Institute of Business | Fedorov E.G.,Volgograd State University of Architecture and Civil Engineering
Physics of the Solid State | Year: 2013

The propagation of bipolar electromagnetic pulses in an array of semiconductor carbon nanotubes has been investigated. The inhomogeneity of the pulse field along the axis of the nanotubes has been taken into account for the first time. The evolution of the electromagnetic field and charge density in the sample has been described by the set of Maxwell's equations and the continuity equation. The possibility of stable propagation of bipolar electromagnetic pulses occurring in an array of nanotubes has been demonstrated by numerical simulation. It has been shown that the propagation of the electromagnetic pulses induces the redistribution of the electron density in the sample. © 2013 Pleiades Publishing, Ltd.


Korniyenko S.V.,Volgograd State University of Architecture and Civil Engineering
Magazine of Civil Engineering | Year: 2014

Thermal performance of buildings is the key aspect of energy saving and energy efficiency enhancement. The thermal behavior of a building is formed under the influence of many factors. The complexity of the process of heat transfer through envelope structures makes the problem of multifactorial assessment of thermal behavior in building envelope elements crucial. This paper presents an assessment of the heat-insulating effect gained from the use of the "ceramic microspheres - binder" composite coating as additional thermal protection of the combined unventilated covering of a building. This multifactorial assessment is based on the calculation method of measuring thermal behavior in building envelope elements developed by the author. It was shown that the application of the composite coating has almost a zero heat-insulating effect and does not provide a normalized level of thermal performance of the enclosing structure during the cold season. In the meantime, the application of mineral wool slabs as the traditional heat insulation for the basic construction allows enhancing thermal properties of the construction to a specified value. Such heat insulation is best for the building thermal capacity, providing a minimum heat gain during the warm season.


Aleksikov S.V.,Volgograd State University of Architecture and Civil Engineering
Procedia Engineering | Year: 2016

The paper describes a methodology for analyzing the design humidity of subgrade soils under dry-land conditions in Southern Russia. The author has studied the strength characteristics of subgrade soils depending on their humidity and density. © 2016 The Authors.


Vesova L.M.,Volgograd State University of Architecture and Civil Engineering
Procedia Engineering | Year: 2016

Cellular concretes have become promising materials for the construction. The increase in the cost of energy resources, the thermo technical requirements for enclosing structures, a simple enough technology, the ability to obtaining single-layer protecting designs, technical and economic indicators confirm the high efficiency of cellular concrete as a wall material. Producing non-autoclaved curing foam concrete, reinforced with low modulus synthetic fibers is possible due to considering the technological role of dispersed reinforcement. Dispersed reinforcement influences the increase in the bearing capacity of the freshly prepared foam concrete mix, resulting in the elimination of destructive processes, increasing the dimensionally stability and raising its stability right after pouring it into the mould. The rate of plastic strength increase during the infusion of synthetic fibers by 1% by increases 2-4 times compared with the initial matrix. © 2016 The Authors.


Galiyarova N.M.,Volgograd State University of Architecture and Civil Engineering
Bulletin of the Russian Academy of Sciences: Physics | Year: 2014

A unified classification (considered within the Langevin phenomenology) is proposed on the basis of comparing the spectral features of complex permittivity ɛ*, specific conductivity σ*, and noises. This classification is generalized to fractal systems, and a description of flicker noise is proposed. The experimental data on flicker noise in the dipole glass phase of lead zirconate titanate with sodium and bismuth impurities (PZTNB-1) in piezoelectric ceramics are reported. © 2014, Allerton Press, Inc.


Kryukov S.A.,Volgograd State University of Architecture and Civil Engineering
Russian Engineering Research | Year: 2015

Methods are outlined for the development and analysis of mixtures consisting of abrasives of different grain size, for use in grinding tools. © 2015, Allerton Press, Inc.

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