Multilevel modeling and optimization of large-scale pipeline systems operation

Novitsky, Nikolay; Alekseev, A. V.; Grebneva, Oksana A.; Lutsenko, A. V.; Tokarev, V. V.; Shalaginova, Z. I.

doi:10.1016/j.energy.2018.02.070

Cited by 35 publications

(31 citation statements)

References 14 publications

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“…Currently, based on these methods, a developed system of mathematical models and methods has been created for calculating and analyzing the hydraulic and thermal-hydraulic regimes of DHS [19][20][21][22][23][24][25][26][27][28]. An information and computing complex (ICC) "ANGARA-HN" software has been created for calculating and analyzing the operation conditions of DHS during their planning [23,[29][30][31]. The integration of model, methodical and software with information technologies provides the possibility of full-scale disclosure of the potential of the theory of hydraulic circuits for research, analysis and organization of the operating regimes of large DHS and other pipeline systems [32].…”

Section: Methodical Backgroundmentioning

confidence: 99%

Development of operating conditions of district heating systems with quality regulation

Tokarev

Shalaginova

2019

E3S Web Conf.

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District heating systems (DHS) have developed as large-scale and very complex engineering structures. In different countries of the world, are used various strategies of their regulation: by quality, by quantity, by combining of quality and quantity. The purpose of the operating conditions development is to find such conditions under which the supply of consumers with the required amount of heat by given quality while observing all the technical and technological requirements. The task of calculating the DHS conditions is to find the distribution of flows, pressures and temperatures across all elements of the design scheme for a given topology, hydraulic and thermal characteristics of its elements and boundary conditions. There are two types of calculation of DHS conditions: adjustment and verification. In article presented DHS operating regime development technology. The “Angara-HN” software can perform the whole complex of calculations.

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Section: Methodical Backgroundmentioning

confidence: 99%

Development of operating conditions of district heating systems with quality regulation

Tokarev

Shalaginova

2019

E3S Web Conf.

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“…are distinguishing models with lumped, variable (adjustable) and distributed parameters [1]. In modeling, quite often various methods of decomposition are used [4,13], as well as simplifications and reductions in the dimension of the models involved at the level of simplification of computational schemes. Such methods are focused on special properties: design tasks, reconstruction [14,15], operational control [6,16]; is attracted models of stationary [6,[14][15][16] or dynamic [8,9,17,18] modes; modeling purposes.…”

Section: Methodical Backgroundmentioning

confidence: 99%

Efficiency increasing by development of district heating systems operational modes using graphical analysis

2019

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The tasks of analyzing, developing and justifying of the district heating systems (DHS) operation modes arise at different stages of their life cycle. The article provides a brief description of the tasks, steps and methods for calculating and analyzing DHS modes, which are implementing as subtasks of the "ANGARA-HN" software. Special attention is paying to the automation of analysis processes. The developed computational and graphical software tools for parameters analyzing of the DHS operating modes consists of the means: analyzing of the initial information, calculating the values of the mode parameters and analyzing results of the calculation. Various tools allow you to visualize the distribution of selected parameters values on the graphical city plan, highlight bottlenecks, building pressure distribution graphs. The developed software designed to automate the workplaces of regimes group engineers at operational enterprises or for designer workers, when developing and justifying development schemes for urban DHS. Tools for analysis and graphical visualization significantly increase the efficiency of work by reducing the time of analysis, development and justification of operating conditions, as well as improve the quality of the results.

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“…For this purpose the calculations of the thermal-hydraulic condition of HSS for the existing scheme of their operation and parameters at heat sources and central heat points which were maintained in the previous heating season. The calculation results are checked for condition feasibility in accordance with the requirements in [16].…”

Section: Technology Of Development Of Hss Operation Conditionsmentioning

confidence: 99%

“…These parameters should ensure the supply of all consumers with the required amount of heat of a given quality, taking into account all technical and technological requirements. The technology of operating condition development is treated in detail in [16] and consists of four main stages.…”

Section: Technology Of Development Of Hss Operation Conditionsmentioning

confidence: 99%

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Generalization of multi-level modeling methods for development and analysis of operating conditions of large heat supply systems

Shalaginova

Tokarev

2018

E3S Web Conf.

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Abstract. The paper presents a methodology of multi-level modeling of thermal-hydraulic conditions of large heat supply systems on the basis of the scientific area of research -the theory of hydraulic circuits -that has been developed at MESI SB RAS. The essentials of the applied methods and also the mechanism of their integration with the up-to-date information technologies are described. In combination they make it possible to calculate operating conditions of heat supply systems (HSS) of arbitrary size and structure. The applied approach is based on the multi-level arrangement of data and single-and multi-level calculations. The latter, in turn, are based on application of the methods of equvalenting and decomposition of both the calculation schemes and problems. The methods for multi-level adjustment thermal-hydraulic calculations take into consideration all requirements for feasibility of conditions and are realized as the informationcomputing system (ICS) "ANGARA-TS". The problems to be solved using the ICS and the technology for development of operating conditions are presented. The ICS is applied to sets of real HSS of big towns to develop conditions and adjustment measures. The composition of the solved tasks implemented in the ICS, the technology of development of operating conditions and an example of a multilevel modeling of the thermal-hydraulic conditions of the HSS in Petropavlovsk-Kamchatsky are presented.

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Multilevel modeling and optimization of large-scale pipeline systems operation

Cited by 35 publications

References 14 publications

Development of operating conditions of district heating systems with quality regulation

Development of operating conditions of district heating systems with quality regulation

Efficiency increasing by development of district heating systems operational modes using graphical analysis

Generalization of multi-level modeling methods for development and analysis of operating conditions of large heat supply systems

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