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The wet method of cleaning the blast furnace gas from the particles of grate dust is one of the most common. The hollow nozzle scrubber is the device for wet cleaning of blast furnace gas in which the cleaning of blast furnace gas is carried out due to the interaction of particles of grate dust with droplets of dispersed technical water. The principle of cleaning the blast furnace gas in the hollow nozzle scrubber is based on the inertial mechanism of collision of grate dust particles with droplets of dispersed process water. After the particles are wetted, stick together and fall out of the flow of the cleaned gas under the influence of gravity. In this paper, we propose a method for calculating the efficiency of blast furnace gas purification in a hollow nozzle straight-through scrubber, which is based on the division of the volume of this gas purification apparatus into even sections. Because the trajectory of the droplet in the blast furnace gas flow in the hollow nozzle scrubber has a parabolic shape, radial component of the absolute velocity of the droplet s taken into account in this technique to determine the efficiency of catching dust particles. The correction factor in the expression for determining the fractional efficiency coefficient of the blast furnace gas purification from the grate dust determines the presence of «dead zones» when the dusty gas is irrigated with technical water sprayed by involute injectors. In addition, the presented method takes into account the increase in the efficiency of cleaning the blast furnace gas due to the process of condensation of water vapor from the flow of dusty gas in the lower part of the hollow nozzle scrubber.

The article deals with the consumption of fuel and energy resources, including a significant proportion of these resources spent on the organization of electric heating (773.7 million kWh). It was noted that until recently in the reporting of JSC « Russian Railways » there were two different approaches in determining the actual volume of electric energy consumed by electric heating equipment, not equipped with individual metering devices based on the calculation-analytical and calculation-statistical methods. It was found that the results of calculations by both methods have a significant deviation between them (up to 100 %). The purpose of the study is to determine a unified approach that allows to accurately record the consumption of electric energy in these conditions. The characteristic features of each of the applied methods were analyzed, comparative studies on a number of objects of four Railways (October, Sverdlovsk, South Ural, East Siberian), characterized by different climatic characteristics were carried out. At the same time, studies were carried out on the applicability in practice for the regulation of fuel and energy resources of the automated system « Stationary energy » . According to the research results, the value of the deviation of the actual consumption of electric energy from the calculated for both applied methods is shown. A method for determining the actual consumption of electric energy for heating on the basis of a preliminary calculation of the allowable volume consumption of thermal energy with subsequent conversion into electrical energy is proposed and confirmed by tests. The results obtained were adopted when updating the « Methods of analysis and planning of electricity consumption for non-traction needs in JSC « Russian Railways » , approved by the order of JSC « Russian Railways » from 22.08.2018 № 1866p in terms of determining the resource requirements for heating. Based on the results, changes were made to the procedure for filling in the data in the corporate management reporting of EO-10U.

Improving the efficiency of the main activities of JSC «Russian Railways» is currently a relevant and significant issue. According to the provisions of the company main strategic documents, the key performance indicators for the locomotives are to be improved by 2025 and continue so until 2035. The paper deals with the analysis of problems and proposals for improving the management of electric locomotives that carry most of goods on the railways of the Russian Federation. The paper analyzes the possibilities to improve the main operational indicators of locomotive complex by increasing the efficiency of the organization of electric locomotives operation. One of the key performance indicators of the locomotive complex is the average daily performance of electric locomotives. To improve this indicator, it is necessary to increase the amount of work per unit of electric traction rolling stock. The given paper proposes two ways to achieve this. Firstly, it is the qualitative improvement of advantageous locomotives, increasing their traction properties; secondly, the improvement of the technology used to manage traction systems. The paper shows that in order to achieve the company targets, JSC «Russian Railways» has to necessarily implement the second solution, namely, introduce and improve the polygon technologies for managing traction resources and switch to extended railroad hauls of electric locomotives. The paper presents the main requirements and conditions for implementing these technical solutions.

The article discusses the operation of systems for interval regulation of train traffic based on a digital radio channel in the absence of radio communication. The aim of the study is to determine the maximum allowable time for the absence of radio communication between the radio blocking center and a moving train in the interval control system. Criteria are proposed that allow assessing traffic safety, as well as reducing the throughput of train traffic in interval control of train traffic systems. The results of calculating the maximum permissible time of radio communication absence in interval control of train traffic systems for freight trains are obtained. Taking into account the maximum allowable time for the absence of radio communication will completely eliminate the likelihood of a dangerous convergence of trains and ensure compliance with the allowable speed mode with a minimum interval of freight trains.

The article presents the relevance of the use of sources of low-potential, secondary thermal energy, as well as a method for calculating the dependence of the propylene glycol temperature on the depth of a single-well coaxial collector, with constant values of the parameters of the geothermal well. The proposed methodology of the geothermal reservoir, allows to determine the optimal depth of the well, in which the increase in the temperature of propylene glycol in practical terms does not change, respectively, further drilling becomes economically inefficient.

The article provides the correlation analysis of accident type influence as quality factorial characteristic on industrial injuries statistic index in the permanent way division of the Kuibyshev railway during some years. By means of mathematical calculations statistical correlation study of characteristics and values has made, taking into account the degree of severity of workers’ health damage affected by industrial accidents. The hypothesis staged within the framework of Kuibyshev Railway permanent way division has confirmed and the degree of mutual contingency of accident types and their quantity has assessed. It is shown that the practical significance of the correlation analysis results on the formation and (or) adjustment of preventive measures to reduce the levels of occupational hazard and prevention of industrial injuries

The article presents the results of the studied soils on physical and thermophysical characteristics in the territory of the city of Omsk. The lack of such data can lead to erroneous calculations in the design of ground probes using low-potential energy of the earth. A method for determining the minimum distance between wells is proposed, which allows to eliminate soil freezing and increase the efficiency of heat transformers.

The method of determining the costs of technological time of processing trains en route has been improved, taking into account the duration of all operations performed by wagons at stations for the effective organization of freight transportation technology on railway transport. A model for calculating the delivery time of goods has been developed to correctly determine the time spent by loaded wagons en route. A method has been developed for determining the time spent on technological operations at stations and the delivery time of goods. The developed method allows you to determine and plan in advance the amount of work that will be performed at the stations. The indicators affecting the duration of the time of delivery of the cargo are given. An improved formula for determining the delivery time of goods by rail is recommended. The article proposes a technology for calculating the daily mileage rate of wagon shipments, depending on the technological operations performed with wagons at stations and the distance of transportation. The reliability of the research results is confirmed by the use of modern calculation methods. Theoretical studies were conducted on the basis of the laws of mathematical statistics. The scientific significance of the results obtained is characterized by the improvement of methods for determining the costs of the technological time of processing trains and the timing of cargo delivery based on the systematization of conditionally constant and random factors affecting the transportation process on railway transport.

A level crossing is a system of interaction between rail and road transport. Traffic safety at level crossings is a priority in Russia. Despite the annual reduction in the number of level crossings and the modernization of existing level crossings, the number of accidents at level crossings, including fatalities, remains at the significant level. The subject of research is the factors affecting the safety of level crossings. The aim of the work is to identify the factors with the greatest affecting the operation of a level crossings in the Russian Federation. The research used: a generalized block diagram of a level crossing, a block diagram of factors affecting the operation of a level crossing, a prior analysis by the evaluation, calculation of the Kendall coefficient for individual groups of factors, sorting of factors according to the average assessment of experts. The article provides data on the number of road traffic accidents at level crossings in the Russian Federation for the period from 2005 to 2020, and the number of level crossings of different categories for 2020. It has been hypothesized that the main cause of accidents at level crossings is violation of the rules by vehicle drivers. The block diagram of factors affecting the operation of a level crossing based on the generalized block diagram of a level crossing. Factors affecting the operation of a level crossing are divided into four groups. The Kendall coefficient was calculated for individual groups of factors. Evaluation of the factors affecting the operation of a level crossing was implemented, according to the average assessment of the experts. This hypothesis was confirmed. Using of the results of this analysis will reduce the number of accidents at level crossings. The results can be used both in the modernization of existing level crossings and in the design of new level crossings.

In article results of making design for system of the dangerous wastes transport safety by railway is considered. Fundamental elements of safety system are discussed. Recommendations on formation of the dangerous wastes transport safety program are shown.

We consider the concept and architectural aspects of the development of the corporate information sys-tem for monitoring and resources accounting. The relevance of improving automated systems is due to the intensification of the use of modern information technologies in industry. The aim of the work is to select the architecture of the distributed information system for monitoring and resources accounting (hereinafter - the system), which ensures prompt decision-making in the management of technological objects. We consider the current trends in the development of information systems and concepts that provide the requirements established for systems of this class and purpose. The system is based on previously designed prototype that has been put into operation, and differs from it in new solutions that allow to increase mobility and fault tolerance. We describe the basic implemented architectures and the system functionality.

This article is devoted to the investigation of the internal parameters of transformers used for power supply of railway automatic and telemechanic devices. In this paper, the change in the nomogram of the impedance area of a power transformer is considered when changing the parameters of the replacement circuit of this transformer. The possibility of visualizing the change in the parameters of a transformer using the mathematical apparatus of conformal mappings is shown. The nomograms of the input resistance of the single-phase oil transformer are constructed with a change in the value of the insulation resistance and the transient resistance at the junction points. Based on the constructed nomograms, conclusions were drawn on the behavior of the input impedance region of the transformer in various situations.

Currently, much attention is paid to the creation of terminal «dry port» for maintenance of traffic node. «Dry port» is one of the possible ways to increase capacity of the transport node. The capacity of transport node depends on the following interrelated elements: infrastructure solutions, technological, technical, organizational, and exogenous. Insufficiency of technical equipment, low level of production culture, informational inconsistency - lead to excessive downtime of vehicles at berths and terminal and warehouse facilities of the port. Technical devices, shunting locomotives, lifting and transport equipment cannot cope with the increasing flow of transportation of containers and cargo, leading to paralysis of the movement of freight flows. The result is the accumulation of cars at the entrances to the transportation hub the formation of «abandoned» trains. The lack of logistics management principles of traffic promotion in the organization of multimodal transport required a modern approach to organization of effective work of the transport node. In this work the effective interaction between various types of transport in the transport node is represented in the form of a set-theoretic model. Considered the elements that contribute to the throughput of dry ports and sea port. The efficiency of technological processes systems of interaction of railway and marine transport in the node depends on the following conditions: the actual time of wagons in transportation must comply with regulatory process time; organization supply wagons in accordance with the processing capabilities of the cargo platforms; ensuring the maximum amount of overload of goods on the «direct option». To implement these conditions it is necessary to organize the interaction of different modes of transport in the transport node together with the terminal «dry port» in the system «terminal - station - port», in which the capacity of the railway component of the transport node is treated comprehensively along with the «dry port». Further technical and technological development of transport nodes is organization of cargo handling outside the port terminal «dry port».

The article considers the task of controlling the quality of work transport hub taking into account the performance given by stochastically independent Poisson counter and quasiresonance traffic flows. The problem is solved with the use of analytical and mathematical apparatus of Queuing theory. The results obtained in the article are supposed to be used to determine the forecast of the total free capacity of vehicles waiting for loading, the queue length of loaded vehicles (trains) in anticipation of unloading, the coefficient of use of useful volumes of warehouse complexes.

The article presents the results of research of a point magneto-induction sensor based on a mathematical model, which allows you to increase the reliability of automated systems for diagnosing technical condition rolling stock in the course of train movement by improvement the accuracy of the initial information, that is, the moments of fixation passing of wheelset axles over magneto-induction sensors. At the first stage of developing a stigmatic mathematical model the analytical dependence of the value of the magnetic flux in the magnetic core and the output EMF value on resistance of the air gap between the sensor and the wheel crest. At the second stage of development of the mathematical model found time dependence of the magnetic resistance of the air gap between the core of the magneto-induction sensor and the comb wheels of a railway car moving along a straight track at a constant speed. On the basis of application the developed stigmatic model allows evaluating the energy parameters of magneto-induction sensors depending on the properties of modern magnetic materials. The simulation results showed that the MMF value is constant the magnet determines the main parameters of magneto-induction sensors, so the use of modern magnets based on rare earth they allow to eliminate the traditional disadvantage of outdated types of magneto-induction sensors, that is, to reduce their size and weight. The application of the proposed stigmatic model expands the scope of possible solutions to extreme problems for selection and justification parameters of magneto-induction sensors, helps to improve the accuracy of systems for diagnosing the technical condition of the car fleet and traffic safety on railway transport.

The article discusses the issues of using the technology of replacing inventory rails with rail lashes of a jointless track. For the production of works on the replacement of rail lashes, excavators on a combined course have been selected as the leading machines, which in recent years have been widely used in the production of works for the current maintenance and repair of the railway track. The paper presents the results of a comparative assessment of the use of rail lash replacement technology using attachments and using a pair of trolleys. In order to select the best technology for the production of works on the replacement of rail lashes, a methodology for assessing the economic efficiency of using a particular technology has been developed. The main indicator in the calculations were the given operating costs, taking into account the cost of the machine per unit of work, the cost of relocating the machine, the delay of trains, the wages of track fitters and the discharge of rail lashes. According to the results of the calculation, it was found that it is economically advantageous to replace rail lashes at the front of work up to 4 km using technology using a pair of trolleys, at the front of work more than 4 km, it is advisable to replace rail lashes using technology using attachments. The maximum economic effect when using technology with the use of attachments is achieved with a work front of 10 km. A comparison of the results of work on two technologies gives grounds to conclude that with a three-hour «window», the volume of work performed on the technology with the use of attachments is 1,7 times higher than the volume of work performed on the technology with the use of a pair of trolleys.

Developed Methodology let make the calculation of coaxial cable parameters with account of the frequency of the transmitted signal. The comparative analysis of parameters of RC 50-7-28 and RG142 cables has been made with the values have been got by the measuring with the circuit analyzer according to the reference book with the results of the calculations. Check the accuracy of the calculation has pointed out the necessity for account of complementary factors for the purpose of much more correct account cable attenuation in the frequency spectrum.

The article deals with the locomotive lifecycle problem at vehicle technical maintenance and repairing service. It proposes to encapsulate the statistic methods into the automatic locomotive depot control system basing on the example of management with the minimum stock spare parts level. In such a group of companies as "Locomotive technologies" the efficacy of maintenance and repairing technological processes is improved by creation and implementation of the information management control system "Network diagram" into the locomotive depot service. Its implementation was started in 2016 and should be completed by the end of 2017. In practice methodological approaches of international (ISO) and national (GOST) standards of management quality and reliability, lean manufacturing and statistic methods of management in conditions of locomotive depot service are proposed to be used basing on the principle of "Built-in quality". In this case logical constructions, algorithms and formulas are encapsulated into “Network diagram” software significantly reducing the training level demands of the depot personnel. The article also proposes to control the minimum level of stock spare parts in the locomotive depot in terms of “Network diagram” software through encapsulation of probabilistic-statistical methods of minimum stock calculation according to the data on intensity of parts consumption and the time of their delivery to the depot.

The article presents the results of measurements of electricity on active and passive sectioning posts the traction power supply system direct current sections of railways with III and IV path profile type. Basic characteristics of operating modes sectioning posts for the purpose of assessing the amount of electricity transferred and duration of work electricity storage in different modes are considered. The most observed voltage values, volumes of transmitted energy and duration of each case are defined. Choice of theoretical distribution laws, allowing to use the experimental values obtained in further calculations in modeling of operating modes electricity storage is completed.

The results of edge stresses and stress measurements in the neck of the rail in a curve of radius 380 m, obtained in the tests on the effects on the way the locomotive CKD6e-2108, freight gondola 12-9941 and 12-9920, on railway line Almaty - Chu. The dependences of the stresses in the edges of the soles and neck rail on the speed of the test vehicles. The possibility of a transition from stress to lateral forces.

The calculation of the forecast demand for electric energy by energy systems and complexes of the constituent entities of the Russian Federation is an urgent task. The use of deterministic methods for objects of a similar scale is practically excluded due to the absence or significant incompleteness of the source data. Statistical data available in official sources in an unchanged format is usually presented for a period of 3 - 5 years, which is insufficient for the use of artificial neural networks. The article attempts to study the properties of similar energy systems and complexes. Modern power systems and complexes belong to closed subsystems, the set of elements and connections of which is equivalent to the set of elements of local subsystems of a higher level energy system. This means the inadmissibility of drawing up predictive rules of functioning without taking into account heterogeneous external influences. The system and subsystems are presented as a "black box". Interactions between the system and the external environment and within the system are carried out by the transmission of signals, which are described by a finite set of factors available for analysis and forecasting. The analysis of the possibility of supplementing the general population with statistical data on other objects with a similar structure is carried out. The property of heteromorphism of energy systems and complexes is confirmed. The example of energy systems in the regions of the Russian Federation shows the possibility of a similar approach if non-collinear groups of factors are applied to the analysis. The results of 15 calculations of the most energy-intensive entities of the country are presented, in 28 % of cases the accuracy of forecasted power consumption accuracy is less than 5 %. A further increase in the accuracy of the forecast should develop in the direction of increasing the number of input factors, subject to the condition of the absence of their collinearity and multicollinearity. It is shown that energy systems and complexes of various scales can be described by non-Gaussian stable distributions with infinite dispersion of non-Gaussian distributions, which makes incorrect the use of such methods as the simple extrapolation method, as well as statistical methods based on the assumption that the random distribution law is normal.

Analysis of failures bogie side frames of freight cars in the network of JSC «Russian Railways» for the period from 2006 to 2013. Disadvantages of the well-known constructions of trucks of the car of model 18-100. Mathematical modeling of movement of a wheel pair bogie 18-100, set the negative impact of the spread of the values of structural parameters of the chassis of the car on the indicators of its dynamic qualities and driving safety.

The article deals with the application and use of heat pump installations as a low-potential source of heat energy to provide consumers with heat energy in the building heating system. Today, one of the most environmentally friendly and economical alternative sources of thermal energy is a heat pump unit. The use of these devices will reduce COemissions. The main advantages and disadvantages that appear during the operation of heat pumps are listed. Based on the results of tests of boilers using organic fuels (coal, fuel oil, natural gas)and low-potential heat sources with an electric drive, the dependences of the heat transformation coefficient of the heat pump and the efficiency of boilers operating on organic fuels on the cost of conventional fuel per unit of released energy are constructed. The coefficient of heat transformation of heat pump installations in the range of changes in operating parameters 3,0 < µ < 5,0 is determined. A graph of the dependence of the energy conversion coefficient on the temperature of the heat carrier in the heating system and the ambient temperature is constructed. A schematic diagram of the connection of a heat pump installation to the building heating system is proposed. Studies were conducted in the period from April 1 to April 21, 2021 in the laboratory auditorium of the educational building of OmGUPSa and the readings of the main parameters of the operation of the heat pump unit with the Vitocal 242-S heat pump were recorded. Based on the results of the main parameters, the following are calculated: the thermal load on the room heating system; the temperature of the coolant in the supply pipeline; the amount of electricity consumed by the heat pump; the conversion coefficient of the COР. The optimal values for this heat pump unit under the specified operating modes are estimated.

In the article the questions of increase of efficiency of structural subdivisions, members of the directorates of the West Siberian railway - branch of JSC "Russian Railways", such as infrastructure Directorate, Directorate railcar rolling stock and the Directorate of buildings and structures. The aim of this work is to identify structural units with the lowest energy efficiency indicators. This requires estimation of an indicator such as relative energy efficiency over a period of time equal to one calendar year, based on data of annual consumption of electric energy and annual volume of enterprise work. The article also outlines the main provisions of the concept analysis and monitoring the energy efficiency indicators of stationary objects of the railway transport, which will identify inefficient structural subdivisions with the use of control actions to reduce irrational consumption of energy resources. Calculation of the relative energy efficiency is one of the stages of this concept. The result is a received charts of the relative energy efficiency of structural subdivisions of the West Siberian railway which allows to make a comparison of this indicator. According to the results of comparison found that 10 of the 65 structural units have a low indicator of relative energy efficiency. This suggests the need for careful study the reasons of the low values of energy efficiency in these structural subdivisions and proposals the measures to eliminate this situation. The method and sequence of these activities proposes into the third and fourth stages of the concept. The establishment and subsequent application of a unified approach to the analysis and monitoring of energy efficiency indicators for all departments will increase the energy efficiency of the territorial branches of JSC "Russian Railways" and the holding company as whole.

In article the solution of a task of the organization of operational monitoring of elements of the rolling stock on the basis of the methods of statistical definition of quality which were widely used in the analysis of defects of the current production is considered. The problem is solved on the example of carrying out control and diagnostic operations by results of which realization the conclusion about technical condition of elements of the rolling stock becomes. The approach offered in article allows to consider a posteriori information and by that to optimize the volume of the carried-out works. The received results can be used at the solution of a complex of tasks of decrease in resource intensity of system of repair and the maintenance of the rolling stock.