scholarly journals Energy efficiency and ecological quality of buildings by process control of heat supply systems

2018 ◽  
Vol 251 ◽  
pp. 03052 ◽  
Author(s):  
Andrey Benuzh ◽  
Sergey Fedorov ◽  
Ekaterina Orenburova
Keyword(s):  
Process Control ◽  
Heat Supply ◽  
Heat Supply System ◽  
Heat Transfer Fluid ◽  
Industrial Buildings ◽  
Operation Algorithm ◽  
And Control ◽  
Supply Systems ◽  
Continuous Heat

The article presents special characteristics of mathematical modeling of the process control a resource efficient heat supply system of industrial buildings and facilities, where constant temperature maintenance is especially critical for the process. A functional diagram of the operation of the continuous heat supply process is provided. The dependence of temperature at the point of heat-transfer fluid mixing on environmental is analyzed and control system operation algorithm is proposed.

scholarly journals Improving the quality of installation of preinsulated pipelines of heat supply systems

2021 ◽  
Vol 264 ◽  
pp. 02068
Author(s):  
Rustem Mukhametrakhimov ◽  
Albert Galautdinov ◽  
Anastasia Panchenko ◽  
Tatyana Gorbunova
Keyword(s):  
Polyurethane Foam ◽  
Heat Supply ◽  
Energy Strategy ◽  
Steel Pipes ◽  
Heat Supply Systems ◽  
And Control ◽  
Supply Systems

One of the most important directions of Russia's economic and energy strategy is to increase the efficiency in the field of heat supply. One of the options for solving this issue is using preinsulated pipelines, such as steel pipes in polyurethane foam polyethylene insulation. The experience of their application indicates several disadvantages associated with defects in pipes in polyurethane foam insulation and installed pipelines. The studies carried out made it possible to identify the main defects and inconsistencies in the manufacture and installation of preinsulated pipelines and the reasons for their occurrence. Following this, the authors have developed a set of operations and control tools during the installation of pipes in polyurethane foam PE insulation, clarifying the requirements of the input, operational and acceptance types of control, which contribute to improving the quality of the finished product, which was the purpose of this work.

scholarly journals Analysis and synthesis of regime controllability of heat supply systems

2018 ◽  
Vol 212 ◽  
pp. 02001 ◽  
Author(s):  
Zoya Shalaginova
Keyword(s):  
Heat Supply ◽  
Reverse Flow ◽  
Heat Supply System ◽  
Transport Delay ◽  
Control Units ◽  
Additional Control ◽  
Analysis And Synthesis ◽  
Heat Deficit ◽  
And Control ◽  
Supply Systems

A mathematical model of the heat and hydraulic regimes (HHR) of the heat supply system (HPS) is given in time, taking into account the transport delay, disturbing, and control actions. Based on the simulation of the HHR, the indicators of consumer security integrated over the billing period were developed. The analysis of heat deficit indicators allows us to adopt a decision on the placement of additional control units to improve the regime controllability. The approach to the task of placing intermediate stages of regulation based on the construction of path matrices from final consumers in the direction of the reverse flow of the coolant is given. The model is implemented in the information-computational complex (ICC) “ANGARA-TS” for the calculation of the HHR of HPS, which is developed in the Melentiev Energy Systems of SB RAS.

scholarly journals Creating an environmentally safe and reliable heat supply system through the introduction of energy-saving technologies in housing and common utilities services

2021 ◽  
Vol 265 ◽  
pp. 04020
Author(s):  
Galina V. Astratova ◽  
Tatyana K. Rutkauskas ◽  
Konstantin V. Rutkauskas ◽  
Vladimir V. Klimuk
Keyword(s):  
Energy Saving ◽  
Heat Supply ◽  
Online Survey ◽  
Heat Supply System ◽  
Combustion Products ◽  
Environmental Safety ◽  
Environmentally Safe ◽  
Utilities Services ◽  
Supply Systems

The rational use of natural resources and the creation of an environmentally safety is a priority goal for all mankind. The increasing pollution of the atmospheric air by the combustion products of various types of fuel actualizes the problem of improving the environmental safety and efficiency of heat supply systems (HSS). Heating is the most energy intensive and wasteful sector of the national economy, because the turnover is comparable to 2.1% of GDP and an average of 50% in payment of citizens for housing and communal utility services (HCUS). However, HSS today is in a critical state at all stages of production, distribution and consumption of heat, which is especially typical for HCUS enterprises in Russia. Accordingly, the population is not satisfied with the quality and price of HCUS services. The purpose of the study was to develop a mechanism for creating an environmentally safe and reliable HSS by introducing energy-saving technologies that can improve the quality and reduce the price of HCUS services. The data analysis of the online survey of Russians in social networks in 2018-2019 is carried out. The average level of the population satisfaction with the quality of the provided services of HSS is determined.

Improvement of the methodology assessment of reliability heat supply systems at the facilities of main pipelines

2021 ◽  
pp. 198-202
Author(s):  
Марина Николаевна Ильина ◽  
Дмитрий Васильевич Ларюшкин
Keyword(s):  
Cluster Analysis ◽  
Heat Supply ◽  
Network Reliability ◽  
Reliability Assessment ◽  
Heat Supply System ◽  
Operating Conditions ◽  
Heat Network ◽  
Heat Networks ◽  
Heat Supply Systems ◽  
Supply Systems

Источником информации о техническом состоянии трубопроводов тепловых сетей объектов магистральных нефтепроводов ПАО «Транснефть» являются результаты их обслуживания и ремонта, технического освидетельствования, гидравлических испытаний и т. д. На основании этих данных проводятся расчеты показателей надежности, по итогам анализа которых осуществляется планирование дальнейшего технического обслуживания и ремонта. Однако при оценке надежности систем теплоснабжения необходимо учитывать не только срок эксплуатации и величину амортизационного износа, но и реальное состояние в конкретных условиях функционирования. Учесть многообразие факторов, которые влияют на работоспособность трубопроводов системы теплоснабжения, и тем самым повысить точность расчетов при оценке их остаточного ресурса позволяет применение кластерного анализа в дополнение к используемой методике оценки надежности тепловых сетей. В рамках настоящей работы оценка надежности объектов АО «Связьтранснефть» с применением кластерного анализа проведена на примере равнозначных участков тепловых сетей двух узлов связи, расположенных в Краснодарском крае и Республике Саха (Якутия). Currently, information about technical condition of pipelines of heat supply systems at the facilities of the main oil pipelines of PJSC Transneft is formed based on the results of maintenance and repair, technical inspection, hydraulic tests, etc. Upon these data, calculations of reliability indicators of heat networks are carried out, based on the analysis of calculations further maintenance and repairs are planned. However, when assessing the reliability of heat supply systems, it is necessary to take into account not only the service life and the amount of depreciation wear of heat network elements, but also their real state in specific operating conditions. The use of cluster analysis in addition to the currently used method of heat network reliability assessment allows us to take into account the variety of factors that affect the operability of pipelines of the heat supply system, and thereby increase the accuracy of calculations when assessing their residual resource. Within the framework of this work, the reliability assessment of Svyaztransneft JSC facilities using cluster analysis was carried out on the example of equivalent sections of heat networks of two communication nodes located in the Krasnodar Territory and the Republic of Sakha (Yakutia).

scholarly journals Efficiency of systems of heat supply with introduction of automated individual heating substations

2019 ◽  
Vol 124 ◽  
pp. 01026
Author(s):  
Yu. N. Zvonareva ◽  
Sh. G. Ziganshin ◽  
E. V. Izmaylova ◽  
A. S. Gavrilov ◽  
A. V. Moryashev ◽  
...  
Keyword(s):  
Performance Indicators ◽  
System Performance ◽  
Heat Supply ◽  
Heat Supply System ◽  
Supply System ◽  
Research Results ◽  
Heat Supply Systems ◽  
Supply Systems

Article is devoted to increasing efficiency of heat supply systems. We demonstrate research results and an analysis of dependences of overall heat supply system performance indicators at various levels of equipment of consumers with the automated individual heating substations.

scholarly journals Analysis of the whole process of environmental protection project management and control

2018 ◽  
Author(s):  
Yanlun Shi ◽  
Jian Wang ◽  
Yongbo Qu ◽  
Zhihong Lang ◽  
Hongjiao Liu
Keyword(s):  
Process Control ◽  
Environmental Protection ◽  
Process Management ◽  
Management Level ◽  
Whole Process ◽  
Control And Management ◽  
Reform And Opening Up ◽  
And Control ◽  
Control Management

 Since the reform and opening up, the national economy of our country has been developing steadily and steadily, and the overall level of urbanization and industrialization has been upgrading rapidly.Behind its growth is increasingly serious environmental problems, and environmental protection engineering as a key project of ecological environment governance, its process management level and quality are related to the balance of the entire ecological environment.If we want to further improve the overall efficiency and quality of the project and fundamentally realize the standardization and standardization of the environmental protection project, we should strengthen the whole process control and management of the environmental protection project, and promote the full coverage of the whole process control management.In view of this, this article on the importance of the whole process control management focuses on environmental protection projects, according to the actual management of risks in the process to carry on the understanding and control, and make proper treatment, to strengthen risk management and process control of environmental engineering[1].

scholarly journals Technologies for mathematical and computer modeling to automate the process of operational states development for heat supply systems

2020 ◽  
Vol 209 ◽  
pp. 02026
Author(s):  
Zoya I. Shalaginova ◽  
Vyacheslav V. Tokarev ◽  
Oksana A. Grebneva ◽  
Aleksandr V. Lutsenko
Keyword(s):  
Heat Supply ◽  
New Technology ◽  
Object Oriented ◽  
Hierarchical Optimization ◽  
Energy Saving Potential ◽  
Methods Of Calculation ◽  
Pumping Stations ◽  
Large Systems ◽  
Supply Systems

This article proposes the new technology for development of operational states for HSS of arbitrary structure and dimension. Technology is based on multilevel modeling and a new method for adjustment calculation of thermal hydraulic states. It is implemented in the information and computer complex «ANGARA-HN». Technology includes checking the permissibility of states, calculating the throttling devices on the network and inputs of consumers’ buildings. It allows calculating large systems with intermediate stages of regulation, developing adjustment measures to improve the quality of heat supply and consumer provision, reducing circulation flow rates and pressure in networks. The development of modeling methods is carried out in the following directions: taking into account the new composition of equipment, including mixing pumping stations; development of nontraditional methods of calculation, such as object-oriented modeling; development of tasks of hierarchical optimization and identification of state parameters, as task of rising for model adequacy; development of task for finding of sectioning variants for multi-circuit heat network with several sources. The application of methodological and software developments makes it possible to obtain both an economic and a social effect by identifying and realizing of the energy saving potential, improving the quality and reliability.

scholarly journals The influence of changes in the project on the reliability of heat power systems during construction and installation works

2019 ◽  
Vol 124 ◽  
pp. 05083
Author(s):  
T.G. Gorbunova ◽  
T.O. Politova ◽  
Sh.G. Ziganshin ◽  
E.V. Izmailova ◽  
V.V. Serov
Keyword(s):  
Power Systems ◽  
Heat Supply ◽  
Heat Supply System ◽  
Supply System ◽  
Negative Consequences ◽  
Regulatory Requirements ◽  
Heat Networks ◽  
Design Engineers ◽  
The Cost

However, during the construction and reconstruction of existing heat networks, cases that lead to unstable operation of newly laid or replaced areas arise. An important task is to minimize the reasons that can cause damage to replaced areas. Factors that negatively affect the reliability include: laying pipelines without design documentation, non-compliance of the regulatory requirements for their laying by installation organizations. The assumptions of design engineers developing the project and installers laying the heating main can lead to negative consequences, including a decrease in the reliability of the facilities functioning. Physical deterioration, coupled with the above factors, leads to a large number of failures of heat networks. Breakthroughs reduce the reliability of the entire heat supply system, worsen the quality of the supplied coolant and lead to an increase in the cost of maintenance of heat networks by operating organizations. The paper considers the influence of changes in the project during the construction and installation works on the reliability of the heat supply system.

scholarly journals ABOUT THE ALIGNMENT DESIGN OF HEAT SUPPLY SYSTEMS ON THE BASIS OF SYSTEM ANALYSIS

2020 ◽  
pp. 35-45
Author(s):  
A. V. Loboda ◽  
A. A. Chuikina
Keyword(s):  
Heat Supply ◽  
Optimization Problem ◽  
System Analysis ◽  
Heat Supply System ◽  
Supply System ◽  
Optimal Solutions ◽  
Mathematical Problems ◽  
Heat Supply Systems ◽  
Supply Systems ◽  
Weight Coefficients

Statement of the problem. The aim of the article is to develop procedures for translating practical questions about the choice of optimal routes of the heat supply system into mathematical problems of multi-criteria optimization and the study of these problems taking into account a large number of different parameters of the system and their connections.Results and conclusions. A mathematical description is compiled of the route choosing problem for the heat supply system based on the methods of system analysis. As optimized criteria, the integrated parameters are discussed describing the main characteristics of the systems under consideration. Unification of the problem where some of the criteria must be minimized and the other one maximized is carried out by replacing the minimized criteria with inverse values. Using the example of the modeling problems the procedures are shown for finding optimal solutions. The visibility of such procedures is provided by the use of a quadratic (Euclidean) norm instead of the traditional summation of weight coefficients. The importance of correct scaling and choice of weight factors is shown in the study of the discussed multi-criteria optimization problem.

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