scholarly journals Optimization of Heat Supply Reliability with Account to the Active Consumer Functions

2021 ◽  
Vol 21 (2) ◽  
pp. 5-13
Keyword(s):  
Thermal Energy ◽  
Heat Supply ◽  
Thermal Power ◽  
Reliability Models ◽  
Reliability Parameters ◽  
Markov Random ◽  
Test Circuit ◽  
Optimization Of Heat Supply ◽  
Supply Systems ◽  
Active Consumer

The article considers the problem of analyzing and optimizing the reliability of heat supply to an active consumer (AP) of thermal energy in heat supply systems (HSS), taking into account their additional thermal power provided by their own sources of thermal energy (IT). The stated scientific and methodological problem consists in determining the optimal ratio of the values of the reliability parameters of the HSS elements (failure rates and / or restorations) and the power of the own IT AP, which ensures the required level of reliability of heat supply with minimal total costs to ensure the elemental reliability of the system and the operation of its own IT AP. The authors propose solutions based on the use of the theory of reliability, models of Markov random processes, some regularities of the theory of probability, nodal PN, models of the theory of hydraulic circuits and enlarged regularities of thermophysical processes occurring during heat supply to consumers. A computational experiment was carried out using the developed methods based on the TSS test circuit with characte­ristics close to real systems, providing the basis for conclusions and directions for further research.

Model-Driven Engineering in the Software for Parameter Optimization of Heat Supply Systems

2016 ◽  
Vol 7 (2) ◽  
pp. 108-116
Author(s):  
V. A. Stennikov ◽  
◽  
E. A. Barakhtenko ◽  
D. V. Sokolov ◽  
◽  
...  
Keyword(s):  
Parameter Optimization ◽  
Heat Supply ◽  
Model Driven Engineering ◽  
Model Driven ◽  
Optimization Of Heat Supply ◽  
Heat Supply Systems ◽  
Supply Systems

Problems of Modeling and Optimization of Heat Supply Systems

2016 ◽  
pp. 76-101 ◽  
Author(s):  
Valery Stennikov ◽  
Evgeny Barakhtenko ◽  
Dmitry Sokolov ◽  
Tamara Oshchepkova
Keyword(s):  
Network Model ◽  
Parameter Optimization ◽  
Heat Supply ◽  
Optimization Problems ◽  
Complex Structure ◽  
Software System ◽  
New Methods ◽  
Optimization Of Heat Supply ◽  
Heat Supply Systems ◽  
Supply Systems

This chapter presents new methods and software system SOSNA intended for the parameter optimization of heat supply systems. They make it possible to calculate large-scale systems which have a complex structure with any set of nodes, sections, and circuits. A new methodological approach to solving the problem of the parameter optimization of the heat supply systems is developed. The approach is based on the multi-level decomposition of the network model, which allows us to proceed from the initial problem to less complex sub-problems of a smaller dimension. New algorithms are developed to numerically solve the parameter optimization problems of heat supply systems: an effective algorithm based on the multi-loop optimization method, which allows us to consider hierarchical creation of the network model in the course of problem solving; a parallel high-speed algorithm based on the dynamic programming method. The new methods and algorithms were used in the software system SOSNA.

scholarly journals METHOD OF ANALYSIS OF ENERGY POTENTIAL OF THERMAL ENERGY SOURCE FOR HEAT SUPPLY

2019 ◽  
Vol 4 (10) ◽  
pp. 74-83
Author(s):  
В. Буланин ◽  
V. Bulanin
Keyword(s):  
Energy Balance ◽  
Power Plant ◽  
Thermal Energy ◽  
Thermal Power Plant ◽  
Heat Supply ◽  
Power Plants ◽  
Fuel Efficiency ◽  
Thermal Power ◽  
Energy Potential ◽  
The Impact

The main sources of thermal energy for the heat supply of cities and settlements are fuel-based thermal power plants and boilers. The article provides an analysis of the energy balance of a power plant in connection with the need to minimize the cost of fuel and electricity for heat supply. New analytical expressions comprehensively characterizing the efficiency of a power plant are developed. The analytical assessment of the impact of energy costs for the boiler needs on the energy balance of thermal power plant is made; methods for constructing schemes of the energy balance of thermal power plant and assessment of fuel efficiency in the boiler are designed. Attention is paid to errors arising from the use of the calculated values of air suction in the gas path of the boiler, and not the actual ones. Therefore, it is proposed to change the method of measuring heat loss with flue gases in order to eliminate or reduce the effect of air suction on the measurement results, taking into account the part of the flue gas heat received by the air in the air heater and returned to the boiler through the burner. The methods increasing accuracy of calculations of energy efficiency of the technological processes which are key in the centralized heat supply of the cities and settlements are developed.

Main Reserves for Increasing the Efficiency of Solar Thermal Energy in Heat Supply Systems (Review)

2019 ◽  
Vol 55 (2) ◽  
pp. 91-100
Author(s):  
Yu. K. Rashidov ◽  
K. Yu. Rashidov ◽  
I. I. Mukhin ◽  
Kh. T. Suratov ◽  
J. T. Orzimatov ◽  
...  
Keyword(s):  
Thermal Energy ◽  
Heat Supply ◽  
Solar Thermal ◽  
Solar Thermal Energy ◽  
Heat Supply Systems ◽  
Supply Systems

scholarly journals Optimization of the reliability of heat supply with an active consumer

2018 ◽  
Vol 212 ◽  
pp. 02004
Author(s):  
Ivan Postnikov ◽  
Andrey Penkovsky
Keyword(s):  
Heat Supply ◽  
Computational Experiment ◽  
Economic Effect ◽  
Heat Supply System ◽  
Random Processes ◽  
Supply System ◽  
Energy Methods ◽  
Optimal Distribution ◽  
Reliability Parameters ◽  
Active Consumer

The paper formulates the problem of ensuring the reliability of the heat supply system due to the optimal distribution of reliability parameters in the system, including taking into account capabilities of an active consumer to replace part of the load with own sources of thermal energy. Methods and models for solving this problem are proposed, which are based on the theory of random processes, the theory of hydraulic circuits, and the basic laws of heating. Results of the computational experiment based on the developed methodical apparatus are presented. The possible economic effect of using an active consumer for solving the describe problem is also reviewed in the paper.

scholarly journals Alternative Options for Modernization of Regional Heat Supply Systems: Environmental and Economic Aspects

2021 ◽  
Vol 31 (3) ◽  
pp. 407-415
Author(s):  
Darya Bergen
Keyword(s):  
Russian Federation ◽  
Heat Supply ◽  
Power Plants ◽  
Alternative Fuels ◽  
Thermal Power ◽  
Alternative Fuel ◽  
Solid Biofuel ◽  
The Russian Federation ◽  
Heat Supply Systems ◽  
Supply Systems

At present, environmental pollution by fuel combustion products is one of the key problems in the heat supply sector. It affects the entire population of the Earth. The purpose of the research is to substantiate the necessity of ecological upgrading of thermal power facilities in the Irkutsk region and using a part of municipal solid waste as an alternative fuel at thermal power facilities of the Russian Federation. The research shows that the use of the two kinds of fuel (solid biofuel and alternative fuel) can reduce the anthropogenic load. This measure can be a way of energy efficient disposal of accumulated and annually generated production and consumer waste. The transition to alternative fuels can be most efficiently implemented in boiler houses. This is due to lower capital investments in the modernization of boiler houses as compared to the modernization of thermal power plants. The calculations in the article confirm that the implementation of environmental modernization of regional heat supply systems is not economically beneficial for entrepreneurs. The state should supplement the methods of regulation with targeted co-financing of programs for the modernization of thermal power facilities in order to accelerate the processes of modernization of heat supply in the Russian Federation. At the same time, the recipients of support must comply with the established indicators further on.

scholarly journals Limiting possibilities of the accumulation of thermal energy in centralized heat supply systems

2019 ◽  
Vol 2019 (2) ◽  
pp. 41-45
Author(s):  
V.O. Derii ◽  
◽  
V.D. Bilоdid ◽  
Keyword(s):  
Thermal Energy ◽  
Heat Supply ◽  
Heat Supply Systems ◽  
Supply Systems

Problems of Modeling and Optimization of Heat Supply Systems

2016 ◽  
pp. 102-126 ◽  
Author(s):  
Valery A. Stennikov ◽  
Ivan V. Postnikov
Keyword(s):  
Heat Supply ◽  
Methodological Approach ◽  
Comprehensive Analysis ◽  
Heat Energy ◽  
Production And Distribution ◽  
Optimization Of Heat Supply ◽  
Heat Supply Systems ◽  
The Impact ◽  
Supply Systems ◽  
Supply Reliability

This chapter deals with the problem of comprehensive analysis of heat supply reliability for consumers. It implies a quantitative assessment of the impact of all stages of heat energy production and distribution on heat supply reliability for each consumer of the heat supply system. A short review of existing methods for the analysis of fuel and heat supply reliability is presented that substantiates the key approaches to solving the problem of comprehensive analysis of heat supply reliability. A methodological approach is suggested, in which mathematical models and methods for nodal evaluation of heat supply reliability for consumers are developed and the studies on the impact of different elements of fuel and heat supply systems on its level are described. Mathematical modeling is based on the Markov random processes, models of flow distribution in a heat network, deterministic dependences of thermal processes of heat energy consumption and some other models.

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