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  • Development of a software training simulator to simulate the operation of a district heating system

    The results of the development of a software package are presented that allow training personnel to work in a district heating system to ensure a reliable process of energy transportation in heat networks. The developed simulator described in the article is a software package that includes a SCADA system and a Termas client for modeling and simulation operation of the district heating system. The simulator consists of a thermal-hydraulic mathematical model of the operating modes of the heating network, software and information support for setting up the operating modes of the simulator and assessing the actions of the personnel by the instructor based on the results of work on the simulator. The requirements for the functionality of the simulator are presented. The Demand Analysis application was used to collect data on energy consumption and outdoor temperature. The process of operation of the simulator in the simulation and modeling mode for the heat networks of the city of Yekaterinburg is presented. The developed software simulator makes it possible to simulate an accident, train personnel in the skills of safe equipment control in complex non-stationary modes. The software package allows you to reduce energy costs.

    Keywords: training simulator, software, district heating, heating networks, SCADA system, Termis platform, model, temperature, accident

  • Features of modeling hydrothermal processes of grain processing in vacuum conditions

    The given review of hygrothermal processes in the processing of grain crops, their features is presented from the standpoint of nanotechnology. It is shown that for the developed nanotechnologies in the production of agricultural products, it is necessary to apply non-traditional methods of process research, which is the method of similarity of the functioning of technical systems (SFTS). This method will allow for the processes of humidification, drying, wet-heat treatment in vacuum conditions to obtain generalized similarity criteria, determine their numerical values and obtain generalized criterion dependences of the intensity of the processes under consideration on the processing parameters. The implementation of the method will allow us to quantitatively describe the processes of hygrothermal grain processing in vacuum conditions, assign processing parameters and manage them. Mathematical models of hygrothermal processes have been developed based on the method of similarity of the functioning of technical systems depending on the parameters of the medium and the structure of capillary-porous grain shells.

    Keywords: hydrothermal effects, grain crops, vacuum, nanotechnology, humidification, drying, wet-heat treatment, capillary-porous materials, microcapillary, the criterion of sublbiya, the method of similarity of the functioning of technical systems

  • Software for the control system for the technical condition of the main equipment of thermal power plants

    The problem of digitalization of the data accounting system and the problem of managing the technical condition of equipment at thermal power plants are considered. The performance of the entire thermal power plant depends on the operation of the boiler units. If the equipment fails and the necessary measures to resolve the emergency are not taken in time, then the probability of a decrease in the plant's performance up to the suspension of work increases. Thus, the issue of monitoring the technical condition of all operating equipment is relevant. The developed software for automation of the data recording system and visualization of technical parameters of the reliability of boiler and turbine equipment is described. The software has a methodology for determining the technical condition index of equipment. The software was developed using the JavaScript programming language, the React.js library. Digital technologies have been introduced into the process of recording data on the technical condition of equipment, where for the first time the software includes a method for automatic calculation of the technical condition index of boiler units. The software ensures that equipment downtime is reduced, as well as the likelihood of failure or critical breakdown of boilers. Thus, the operation of the software makes it possible to reduce the likelihood of an emergency state of the main equipment of power plants.

    Keywords: thermal power plant, boiler and turbine equipment, software, technical condition, reliability, repairn

  • Structural analysis teplotehnologicheskih paper production complex JSC "Poligrafkarton"

    We consider the problems of complex structure teplotehnologicheskih complexes manufactures pulp and paper industry. Proposed and carried out structural analysis teplotehnologicheskih paper production complex in pulp and paper mills. Use graph theory and matrix analysis. Apply the authors developed a universal application in C # for the analysis of complex structured system of industrial circuits, power complexes. We obtained the results of the work program for the production of paper teplotehnologicheskoj scheme. Revealed all the circuits with the scheme. Identified torn flows for sequential calculation scheme without iterations. structural analysis program can be recommended for use and other industrial multi-loop circuit industry.

    Keywords: structural analysis, feedback, teplotehnologicheskih scheme, industry, software, iteration

  • Energy-saving drying complex area of milk production on the basis of the heat pump system

    The article describes the conditions of use of heat pumps in the Russian industry. It proposed to introduce for the food industry, in particular for milk production, teplonanosnaya installation. Heat pump system allows to cover the heat load on the heating, ventilation and hot water supply of a specific milk production due to utilization of energy in the form of relief condensate produced in industrial drying processes. It is shown that the proposed plant will allow useful secondary steam and condensate will reduce fuel costs, simplify circuit heat consumption, reduce the cost of production of thermal energy, reduce operating costs for maintenance of heating systems, heat loss and reduce emissions into the environment.

    Keywords: energy efficiency, milk production, relief energy, condensate recovery, heat pump system