Penkovskii A., Stennikov V., Kravets A. Bi-level modeling of district heating systems with prosumers // Energy Reports. Vol.6. No.2. 2020. P.89-95. DOI: 10.1016/j.egyr.2019.11.046 The paper deals with the actual problem of the functioning and development of district heating systems in the framework of the transition to intelligent energy, in which the active consumers (prosumers) holds the key place. The paper proposes an optimization mathematical model for management the operation of district heating...
Теги: bi-level programming , district heating system , heat sources , mathematical modeling , optimal development , optimization , prosumer , heating equipment , mathematical models , district heatingStennikov V., Penkovskii A. The pricing methods on the monopoly district heating market // Energy Reports. Vol.6. No.2. 2020. P.187-193. DOI: 10.1016/j.egyr.2019.11.061 District heating plays an important role in many countries with cold climates. District heating are local systems and in most cases, they organized as natural monopoly markets. This article examines the three variants for the formation of prices for household consumers on monopoly district heating market: market equilibrium of supply...
Теги: heat supply system , heating pricing , market equilibrium , mathematical modeling , monopoly district heating market , regulation , commerce , competition , district heating , mathematical models , classical model , heat supply systems , market equilibria , monopoly mKler A.M., Zharkov P.V., Epishkin N.O. Parametric optimization of supercritical power plants using gradient methods // Energy. ID: 116230. 2019. DOI: 10.1016/j.energy.2019.116230 Gradient nonlinear optimization methods are among the most effective approaches to determine the optimal parameters of thermal power plants. These methods allow us to consistently optimize a large number of thermodynamic and design parameters and mass flow rates of actuation fluids and of heat-transfer fluids. This paper...
Теги: cost of electricity , gradient methods , mathematical modeling , nonlinear optimization , specific plant investments , supercritical power plants , costs , heat transfer , mathematical models , nickel alloys , nonlinear equations , nonlinear programming , superheaterDonskoy I.G. Influence of Coal-Biomass Fuel Composition on the Efficiency of its Conversion in Entrained-Flow Gasifiers // Solid Fuel Chemistry. Vol.53. No.2. 2019. P.113-119. DOI: 10.3103/S0361521919020046 Abstract: Co-gasification process of coal and plant biomass mixtures in entrained flow of oxygen and steam was investigated using mathematical modelling. The calculated dependences of the process characteristics on the control parameters (such as fuel composition, gasification agent composition...
Теги: biomass , coal , entrained flow , gasification , mathematical modeling , efficiency , mathematical models , temperature , control parameters , effect of temperature , entrained flow gasifiers , fuel compositions , gasification process , processPodkoval’nikov S.V., Savel’ev V.A., Khamisov O.V., Chudinova L.Y. Justification of Effectiveness of International Power Interconnections with Separation of Effects between Participants // Automation and Remote Control. Vol.79. No.10. 2018. P.1756-1766. DOI: 10.1134/S0005117918100028 We consider the methodology and describe the tools needed for a system study of the effectiveness of the development of international power links and the interconnections that are formed as a result, in particular from...
Теги: dual estimates , effectiveness , international electrical links and interconnections , mathematical models , methodology , automation , control engineering , electrical links , northeast asia , power interconnections , power links , system study , electric power syShalaginova Z.I. The Development of a Method for Calculating the Nodal Prices of the Thermal Energy by Modeling the Thermal and Hydraulic Regimes of the Heat Supply Systems for Solving Control and Optimization Problems // Thermal Engineering . Vol.65. No.10. 2018. P.756-767. DOI: 10.1134/S0040601518100075 The article deals with the issues of energy saving and increasing the efficiency of thermal energy. Energy saving issues are inextricably linked to the cost of heat for consumers. The costs of...
Теги: calculation method , differential nodal prices , heat supply networks , heat supply systems , mathematical modeling , thermal energy rates , thermohydraulic regimes , energy conservation , energy transfer , heat transfer , hydraulic models , mathematical models , mul... at the level of average total costs and on the demand basis for industrial consumers. Hydraulic circuit theory models and methods, as well as basic microeconomic provisions, are adopted as a scientific and methodological basis describing the proposed mathematical models. To solve the energy supply and demand equilibrium problem, an algorithm is developed for both energy tariff options based on univariate relaxation using redundant design schemes and simple iteration. The developed mathematical models ...
Теги: heat energy market , heat supply , mathematical modeling , optimization , single heat supplier , circuit theory , commerce , costs , hydraulic equipment , hydraulic machinery , iterative methods , mathematical models , solar buildings , economic characteristics , enginNovitskii N.N., Grebneva O.A., Tokarev V.V. Investigation of Active Identification Methods for Thermohydraulic Testing of Heat Networks // Thermal Engineering . Vol.65. No.7. 2018. P.453-461. DOI: 10.1134/S0040601518070066 Considerable uncertainty of the information about actual characteristics and parameters is the key factor restricting the effective use of mathematical modeling and computer simulation methods in solving problems of optimal retrofitting, commissioning, development of operating...
Теги: active identification , heat networks , instrument optimization , mathematical modeling , planning of test modes , test result processing , thermohydraulic tests , thermohydraullic regime model , heat losses , mathematical models , planning , uncertainty analysis , iShalaginova Z.I. Mathematical model for calculation of the heat-hydraulic modes of heating points of heat-supplying systems // Thermal Engineering . Vol.63. No.3. 2016. P.222-232. DOI: 10.1134/S0040601516020075 http://rd.springer.com/article/10.1134/S0040601516020075 The mathematical model and calculation method of the thermal-hydraulic modes of heat points, based on the theory of hydraulic circuits, being developed at the Melentiev Energy Systems Institute are presented. The redundant circuit of...
Теги: calculations , complex networks , computer software , data handling , heating , heating equipment , hydraulic equipment , hydraulic machinery , hydraulic models , hydraulic structures , mathematical models , recTokarev V.V., Shalaginova Z.I. Technique of multilevel adjustment calculation of the heat-hydraulic mode of the major heat supply systems with the intermediate control stages // Thermal Engineering . Vol.63. No.1. 2016. P.68-77. DOI: 10.1134/S0040601516010110 http://rd.springer.com/article/10.1134%2FS0040601516010110 A new technique for heat-hydraulic calculation to organize the normal operating modes of the heat supply systems intended to decide the tasks of planning and mode selecting, which ensures...
Теги: computer software , mathematical models , nuclear energy , computing system , control stage , heat supply systems , hydraulic calculations , multilevel model , optimization task , pumping stations , throttling
