bluuebunny/crossref_metadata_2025_split huggingface dataset:
Trends in the development of decarbonization in energy systems using information technology
Authors: Bogodukhova E S , Britvina V V , Gavrilyuk A V , Sorokin A Y , Bobrov K R 
Published: February 2022

Abstract
This article is devoted to restoring the energy balance through the integration of alternative energy sources and information technologies, the interconnectedness of which will increase the efficiency of both private and public processes. The aim of the work is to study the decarbonization of the economy and energy systems in the development of renewable energy sources. A comparative analysis of foreign countries that use the largest resources, some are still not used. The study of the territories showed that Russia has significant potential with a concentration of renewable energy sources. Based on the results of the work performed, primary signs of decarbonization of energy in climatic development, bottlenecks of energy systems were identified, and directions of alternative energy in Russia were proposed for energy stabilization. The article is supplied with graphic materials and tables, as well as a detailed description of each stage of the study.
Mathematical modeling of the fuel element of a nuclear reactor taking into account the temperature dependence of the thermal conductivity of the fuel element made of uranium oxide
Authors: Kanareykin Aleksandr Ivanovich 
Published: February 2022

Abstract
The work is devoted to the thermal calculation of the fuel element of a nuclear reactor. Attention was paid to the mathematical modeling of the temperature field under boundary conditions of the first kind. Approximations of the dependence of the thermal conductivity of uranium oxide on temperature in the form of a quadratic function were used for numerical modeling.
Renewable energy production management: a clean green world
Authors: Sergeenko Yu S , Abanina E N , Smagina T A , Nikitenko Yu M , Litvinova Yu M , Bobrakova N V , Svistunova L Y 
Published: February 2022

Abstract
The work is relevant and urgent at the present time due to the consequences of the emergency situation in the countries. Therefore, it became necessary to restructure the work of industrial facilities in order to improve environmental protection with the help of the work of employers and people. In the study, scientists identified the positive and negative aspects of the use of energy in the ecology of the globe, improving the cleanliness of work in the production of enterprises, and also studied the materials (documentation) in the field of regulation of renewable energy sources in the implementation of production in organizations. The article analyzes the international reports of the energy industry, researches of scientists, past international conferences. With the aim of preserving the environment and supporting the ecology in every state and enterprises, there is a need to use natural resources for mixed use of energy through power grids or renewable energy sources. The main theses on the preservation of the environment and the suspension of its pollution, the rise in the purity of the ecological world have been formed.
Energy production as a basis for sustainable development in the BRICS countries
Authors: Barykina Y N , Chernykh A G , Na Bao 
Published: February 2022

Abstract
The article examines the issues of availability of energy resources and energy production in the BRICS countries in the context of sustainable development. The study also analyzes the energy balance and the share of energy sources produced in the BRICS countries. The article describes a contribution of the BRICS countries to global energy demand and production. Using statistics and reports of leading energy experts, a forecast of future consumption and demand was developed. It shows a significant increase in both global demand and energy production. The study proposes measures aimed to address the problems hindering the development of the energy sector in the BRICS countries.
Electrodynamic compensator for high-current contact devices
Authors: Zaitsev Yu M , Nikolaev N N , Russova N V , Stepanov T V 
Published: February 2022

Abstract
Compensators of electrodynamic repulsion forces of closed electrical contacts are designed to increase the stability of the operation of switching electrical devices when short-circuit currents flow. The possibilities of increasing the efficiency of electrodynamic compensators (one-loop and two-loop) in their traditional design are very limited. The paper analyzes an electrodynamic compensator for high-current contacts, in which the free end of the inactive contact included in the design of the compensator with contact pads is bent 180 degrees towards the axis of rotation of the inactive contact. As a result of this, the shoulder, on which the electrodynamic force of repulsion of the contacts acts, decreases. In such a design, the moment of repulsion of the contacts will also be less and the fulfillment of the condition for its full compensation is facilitated. Formulas are given for calculating the additional electrodynamic force of the considered compensator and its contour coefficient. Calculations of the additional electrodynamic effort of the breaker compensator for a rated current of 630A with a short-time withstand current of 40kA have been performed. With the length of the bent part of the inactive contact equal to 25% of the total length of the current loop, the resulting electrodynamic force of the compensator increases by 4.69%. In this case, a 25% reduction in the torque that is repulsive to the contacts occurs.
Decision-making algorithm for the modernization of supercritical TPP water treatment plants
Authors: Veselovskaya E V , Fedorova N V 
Published: February 2022

Abstract
B The transition from traditional ion exchange technologies of water desalination to baromembrane technologies is fully justified from the point of view of ecology. Baromembrane technologies are more expensive methods of preparing additional water for thermal power plants. Therefore, it is necessary in each case to assess the feasibility of upgrading individual nodes of the technological scheme of water treatment. This is especially true for thermal power plants with supercritical parameters, since the preparation of additional water of appropriate quality is possible only with the combined use of reverse osmosis and electrodeionization methods or with the combination of reverse osmosis and ion exchange methods.The article considers one of the possible options for choosing the optimal water treatment scheme based on the analysis of water quality after each stage of purification, the costs of introducing new methods of water treatment, the requirements for the qualification of personnel and environmental indicators of the water treatment plant.
A study of innovative technologies in the fuel and energy sector
Authors: Dyukova V V , Mongush Y D , Haustovich N A 
Published: February 2022

Abstract
In our changing world, innovative technologies play an important role in the development of the fuel and energy industry. The use of green energy and the gradual abandonment of hydrocarbons are gaining popularity due to their negative impact on the environmental situation in the world. This phenomenon gives a new direction in the development of innovative technologies whose main purposes are to improve efficiency of energy consumption, to reduce costs and emissions into the atmosphere. The problems of the fuel and energy sector are serious, as this sector is a dangerous polluter of the environment. According to the Paris Agreement, governments have adopted laws and created zero-emission roadmaps to reduce emissions and support developing countries. The article describes innovative technologies that contribute to the development of the global fuel and energy sector, and forecasts when this sector will become environmentally friendly. At the current stage of development of the fuel and energy sector, the most popular energy source is hydrogen, as it is considered to be an incentive to improve efficiency of traditional energy consumption.
Decomposition of the Mathematical Model of Precision Neutron-Physical Calculations of Nuclear Reactors
Authors: Okunev V S 
Published: February 2022

Abstract
The main goal of the work is to assess the possibility of minimizing the design time of nuclear reactors. The achievement of the goal is facilitated by the development of hierarchical models of neutron-physical calculation of the reactor. The models assume the use of a single software package, which eliminates errors associated with the inconsistency of mathematical models used at different levels. The work uses the well-known MCU code, developed by specialists of the NRC “Kurchatov Institute” and the author’s codes. To analyze the void reactivity effect in fast reactors with a traditional geometric shape of the core, a two-level model is used. For studies of a strip zone reactor, an intermediate level of hierarchy is required: a three-level model is used. The subsystem of the lower level is characterized by the minimum time spent on calculations. It allows you to estimate the exact upper bound of the void reactivity effect. Thus, at the stage of preparing a technical proposal, it is possible to limit ourselves to using only the lower-level model, which will reduce the research time by an order of magnitude. This model made it possible to quickly solve a number of practical problems. The significance of research is determined by the possibility of easy adaptation of the model to reactors of different types and to use as the base code of any software package for precision neutron-physical calculation of the reactor. There is no need to use a third-level subsystem to analyze the void reactivity effect in reactors with an unconventional core or low-power reactors. The subsystem gives highly overestimated void effect results. The proposed models are used for post-optimization analysis, computational experiment, and parameterization procedures.
Digital research technology of a specialized electric drive with an asynchronous electric motor
Authors: Yu Loginova E 
Published: February 2022

Abstract
A method is proposed and the possibilities of using the application program Simulink of the MATLAB package for analyzing the characteristics of a special electric drive based on an asynchronous electric motor are considered. A special feature of the electric drive is the working machine. The moment of resistance of the working machine depends non-linearly on the speed of the electric drive. The actuator uses system Direct Torque Control. Methods for analyzing the stability of the operation of an electric drive in the most severe operating modes - starting and changing the control action - are considered.
The ratio of chemical bond components in metals and nonmetals and their classification into conductors, semiconductors and dielectrics
Authors: Sirotkin O S , Sirotkin R O , Pavlova A M 
Published: February 2022

Abstract
The article considers the influence of chemical bond components (covalent character CC, metallic character CM and ionic character CI, in %) in homo- and heteronuclear substances and materials on their classification into classes of electrical conductivity: conductors, semiconductors and dielectrics. Consideration of the influence of the chemical bond type (via CC, CM, CI) on the nature of the electrical conductivity properties of homo- and hetero compounds and respective materials showed the influence of all three components of the chemical bond on it. As a result, it became possible to classify homonuclear compounds of elements by electrical properties into three groups of materials: conductors - CC < CM; semiconductors - CC ≍ or > CM; dielectrics - CC > CM. A good correlation of the ratio of these components with the values of their electrical resistivity, the width of the band gap and the type of conductivity was established. It was found that the increase in electrical conductivity in heteronuclear binary materials, in general, is determined by the growth of CM.
Technical Condition Estimation of the Gas Turbine Axial Compressor
Authors: Blinov V L , Deryabin G A 
Published: February 2022

Abstract
The paper describes an approach for determining the technical state of an axial compressor as part of a gas turbine unit, based on thermogasdynamic parameters that are measured at the operating facility. As a criterion for the technical condition, it is proposed to use the ratio of the actual efficiency of an axial compressor to the reference efficiency in such modes. To do this, it is enough to know the temperatures and pressures of the air at the inlet and outlet of the axial compressor. A method for selecting such modes is described and some features of filtering the operating parameters of a gas turbine plant are noted. In the proposed approach, the choice of modes for analyzing the technical state of an axial compressor is carried out according to the value of the effective power of the gas turbine unit. Some results of determining the criterion of the technical condition of an axial compressor for a gas turbine unit, which drives a centrifugal compressor of natural gas, are presented. Based on the analysis of the degradation of the technical condition criterion, it is possible to determine its predicted value. The results of the work can be used to create automated systems for assessing and predicting the technical condition of drive gas turbine units at their facilities. The application of the obtained results of the work expands the possibilities of servicing gas turbine plants according to the actual state. The proposed approach can be adapted and applied for gas turbine plants for various purposes, as well as for their individual units.
Features of the chemical composition and structure of bentonites in Tatarstan
Authors: Buntin A E , Sirotkin O S , Sirotkin R O 
Published: February 2022

AbstractThe article studies the chemical, mineralogical, granulometric composition and type of chemical bond, as well as meso- and macrostructure of bentonite of the Nurlat deposit of the Republic of Tatarstan. By laser diffraction, the average particle size in the studied bentonite was found to be dominated by fractions of particles with a size of less than 10 µm (31.18%) and 10-40 µm (36.99%). The average particle size of bentonite was 45.67 µm. According to X-ray analysis, bentonite is mineralogically represented by montmorillonite with an interplane distance of 15.0 Å (001), muscovite, chlorite, kaolinite, clinoptilolite, albite and quartz. The microstructure of bentonite is formed mainly by large anisometric flattened microaggregates and volumetric isometric aggregates up to 70 µm. The average pore size was 0.23 µm, porosity was 39.2%. The microstructural model was cellular with elements of a spongy structure.
Physical and Mathematical Modeling and Computer Analysis of Radial Impellers for Chemical and Power Engineering, taking into account Ecology
Authors: Repetckii O V , Cuong Hoang Dinh 
Published: February 2022

Abstract
This article is devoted to mathematical models for the study of natural frequencies, static stresses of radial impellers with cover disk for chemical and power engineering, taking into account ecology and their modeling by the finite element method. General form and mathematical model based on the finite element method of a radial impeller with a covering disc from Schiele & Co (Germany). For a numerical study, this wheel is accepted in the technical field in different computing software systems. For example, commercial systems such as ANSYS WORKBENCH, SOLIDWORKS and initiative software packages (BLADIS+) [1] for solving problems of statics, vibrations and calculating the resource of different technical systems. Calculations of natural frequencies and static stresses of a radial impeller of 10 blades for chemical engineering are presented. The results obtained in this work can be safely assumed the study of changes in natural frequencies and static stresses of turbomachines are relevant at the design and refinement stages. These computer calculations make it possible to significantly reduce the volume of expensive experimental studies that pollute the environment, reduce design time and improve ecology.
Oil strata formation of small oil deposits in the western part of the Tatarstan republic
Authors: Korolev E A , Eskin A A , Muzalevskaya L V , Barieva E R , Serazeeva E A 
Published: February 2022

Abstract
Small oil fields in the western part of the Tatarstan Republic, localized within single brachyanticlinal structures, have been studied. The main productive oil deposits are confined to the deposits of the Tournaisian stage. The reservoir rocks are leached lumpy-peloid limestones, grainstones. Oil-saturated limestones are predominantly medium- and high-capacity reservoirs. Within the limits of oil deposits, oils are characterized by a weak oxidation state. Their composition is dominated by the middle fractions of hydrocarbons. Only in the bottom part of oil deposits near the oil-water contact is the prevalence of heavy hydrocarbons. This indicates that the oil deposits are in the early stages of formation water flooding. By analogy with the same small oil fields on the eastern side of the Melekesskaya depression, it can be expected that oil inflows will not exceed 6-8 tons/day.
Oil cluster: production, transportation and processing (regional experience)
Authors: Zhichkin K A , Zhichkina L N , Matveeva V V , Vlasova E S , Sh Suleymanova A , Fomenko N L 
Published: February 2022

Abstract
The article examines the role of the oil cluster in the economy of the Samara region. Due to him in 2018-2019. formed about 19% of the gross added value of the region. It unites production, transportation, and oil refining, forming the regional budget, providing employment for the population. The work purpose is to study the oil industry state in the Samara region and determine the features of its development. Within the framework of this study, it is planned to solve the following tasks: - study of statistical data on the Samara region oil cluster state; - identification of patterns and dependencies of its development; -identification of the strengths and weaknesses of the Samara region as an oil-producing territory. The volume of oil production reached 16 million tons of oil per year, and there is a tendency towards its increase. At the same time, the cost of production and electricity consumption are increasing, which indicates the improvement of production technology, the formation of a modern infrastructure of the industry. The problem of inappropriate use of agricultural land under the facilities of the oil sector is emerging. Most of this land is located in the eastern part of the region. In the future damage should reach almost 2.0 billion rubles in year.
Evaluation of the dielectric strength of the insulation of innovative busbar conductors with a voltage class of 6 (10) kV
Authors: Kovalev D I , Voronkova E M , Golubev D V 
Published: February 2022

Abstract
The article discusses the issue of increasing the dielectric strength of solid insulation of conduits used in various areas of the electric power industry, chemical and metallurgical industries, as well as in the agro-industrial complex. For a conductor with a voltage class of 6 (10) kV with a specially developed new type of insulating compound, electric strength tests were carried out with a full lightning impulse and one-minute power frequency voltage. As a result of the tests carried out, the functionality of the improved design and the new type of insulation was confirmed.
Computer technology applications to calculate the insolation of photoelectric power plant
Authors: Konovalov Yu V , Khaziev A N 
Published: February 2022

Abstract
The article considers the method of calculating solar insolation, the algorithm and the program operation for calculating insolation, the graphs are obtained showing the change in solar radiation due to the influence of weather factors and the location of solar-heat collectors installation. The results of the study of the regionally adapted photoelectric power plant using the developed computer model in the Simulink program are presented. The developed model allows to investigate the influence of the main input parameters, such as: latitude and longitude of the power plant installation, difference between the local official time and Greenwich Mean Time, inclination angle of the solar panel, the simulated day, atmospheric transparency factor, albedo and azimuth angle on the insolation intensity of the photoelectric power plant. The obtained dependences can be taken into account in the optimization of power supply systems that use solar energy conversion.
Approach for the modelling of the compressor’s defective blades with numerical simulation methods
Authors: Blinov V L , Zubkov I S , Belyaev O V 
Published: February 2022

Abstract
The current work presents the intermediate results of model development to assess the impact of various defects on the axial compressor operation. Recommendations for adjusting computational models are proposed to conduct gas-dynamic and strength studies of compressor stages and blades, taking into account various defects: verification for the presented models was carried out, which results are also presented in the paper. Based on the verification calculations results some features of CFD modeling are considered, as well as requirements for the investigated defects are indicated. The Discussion section presents the defects classification according to their influence on the compressor operation, which studying is possible using a specially developed mathematical description of blade profiles and blades geometry, as well as considering all the recommendations for computational model adjusting and a general approach to blades modeling defects.
Systematization and monitoring of quality parameters of overhead power transmission lines functioning
Authors: Listyukhin V A , Pecherskaya E A , Safronova O A , Artamonov D V 
Published: February 2022

Abstract
On the basis of quality control methods, the analysis of the causes of technological disturbances (accidents) on overhead power lines was carried out. In particular, the Ishikawa diagram, the Pareto diagram were developed, which made it possible to systematize the main causes of technological violations. The necessity of monitoring the indicators of the reliability of the functioning of overhead power transmission lines by means of information-measuring systems has been substantiated. The structure of an information-measuring system for monitoring parameters that have a negative impact on the functioning quality of overhead power transmission lines is proposed. The proposed system is aimed at ensuring the reliability of the electrical networks operation and improving the quality indicators of services provided to consumers for the transmission of electrical energy.