DIGITAL MODELS OF STEADY MODES OF HEAT SUPPLY SYSTEMS BASED ON INVERSE CHARACTERISTICS

Methods and algorithms of digital models for describing and solving the calculation of steady-state hydraulic regimes of heat supply systems, a modified nodal model for calculating the flow distribution,using the method of a new approach to forming a system of equations of nodal heads, in which not direct, but inverse characteristics of passive and active elements of the pipeline network are used. The result of the analysis of the numerical efficiency of the contour and nodal models based on the developed information-graphic system is presented.

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FORMATION OF STRUCTURAL GRAPHS FOR SOLVING LOAD FLOW ANALYSIS IN THE PROBLEMS OF SECURITY OF HEAT SUPPLY SYSTEMS

Modeling of systems and processes ◽

10.12737/19524 ◽

2016 ◽

Vol 8 (4) ◽

pp. 49-53

Author(s):

Мезенцев ◽

A. Mezentsev ◽

Сазонова ◽

Svetlana Sazonova

Keyword(s):

Heat Supply ◽

Flow Analysis ◽

Flow Distribution ◽

Load Flow ◽

Practical Implementation ◽

Heating Systems ◽

Structural Graph ◽

Load Flow Analysis ◽

Heat Supply Systems ◽

Supply Systems

The article is devoted to the formation of structural graph technology for heating systems in solving problems of analysis. Variants subscriber subsystem hardware design of heating systems and the corresponding fragments of the structural graph to solve the problems of the analysis of flow distribution in the unperturbed and perturbed states, respectively. Analysis of flow distribution is required for the practical implementation of tasks in order to ensure the safety of the systems under consideration.

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Calculation of Nodal Prices for Heat Energy in Heat Supply Systems

E3S Web of Conferences ◽

10.1051/e3sconf/202020906020 ◽

2020 ◽

Vol 209 ◽

pp. 06020

Author(s):

Andrey Penkovskii ◽

Oleg Khamisov ◽

Angelica Kravets

Keyword(s):

Heat Supply ◽

Flow Distribution ◽

Heat Supply System ◽

Supply System ◽

Heat Energy ◽

Network Distance ◽

Practical Research ◽

Heat Supply Systems ◽

Nodal Prices ◽

Supply Systems

The article is devoted to the calculation of nodal prices for heat energy in heat supply systems. The problem, mathematical model and method of calculating nodal prices of heat energy for all consumers of the heat supply system considered, taking into account the different cost of heat production by sources, optimal flow distribution, and placement of consumers in the heat network (distance from the source). As the main computational tool for calculating nodal prices for heat energy, the Lagrange multiplier method used in the problem of modes optimizing in heat supply system, which allows explaining in detail the formation of the price for heat energy in each node. With the help of the proposed methodological support, practical research has been carried out for real heat supply system.

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New Approach to Microclimate Parameter Selection for the Production Area with Heat Supply Systems Based on Gas Infrared Radiators

EPJ Web of Conferences ◽

10.1051/epjconf/201611001033 ◽

2016 ◽

Vol 110 ◽

pp. 01033

Author(s):

N. I. Kurilenko ◽

E. Yu. Kurilenko ◽

G. Ya Mamontov

Keyword(s):

Heat Supply ◽

Parameter Selection ◽

New Approach ◽

Production Area ◽

Heat Supply Systems ◽

Selection For ◽

Supply Systems

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Optimization of hydraulic modes of single-source tree-like heat networks

E3S Web of Conferences ◽

10.1051/e3sconf/201910203008 ◽

2019 ◽

Vol 102 ◽

pp. 03008

Author(s):

Alexander V. Lutsenko ◽

Nikolay N. Novitsky

Keyword(s):

Heat Supply ◽

Flow Distribution ◽

Heat Supply System ◽

Original Method ◽

Supply System ◽

Pumping Stations ◽

In Series ◽

Radial Heat ◽

Heat Supply Systems ◽

Supply Systems

The article deals with the problem of optimizing the hydraulic modes of radial heat supply systems with a single heat source and pumping stations. The features of the problem under consideration are the presence of several target functions and a fixed flow distribution. The topology of the networks under consideration allows using the equivalent branching methods of branches connected in parallel and in series to reduce the design schemes to single equivalent branches. To solve this problem, the original method proposed by the authors earlier is adapted. The proposed method was tested on an aggregated scheme of a real heat supply system. Computational experiments have shown the performance and computational efficiency compared with the methods proposed earlier.

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