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abstracting accuracy criterion active identification air-blown gasification air8blown gasification analysis application programs arameter identification bi-level programming biomass branch-and-bound method calculation method catalysis ceramic materials circuit theory coal coal gasification plants coal-fired generating unit coal-gasification cogeneration gas turbine unit cogeneration plants combined cycle unit with coal combustion combined heat combustion commerce competition construction equipment control parameters cost costs cycle cycle power-plants cyclic regenerative ceramic heat exchangers decision-making diffusion kinetics district heating district heating system economic efficiency effect of temperature efficiency efficiency of heat power equipment energy energy conserv energy conservation energy efficiency entrained flow entrained flow gasifiers equilibrium thermodynamics experience of application flowcharting flue gases flues fluidized bed combustion gas gas-turbine gasification gasification in flow gradient methods grids heat energy market heat losses heat storage heat supply heat supply networks heat supply system heat supply systems heat transfer heating equipment heating networks heating pricing high-temperature air heating high8temperature air heating hydraulic equipm hydraulic equipment hydraulic machinery hydraulic models identification identification of parameters instrument optimization integrated gasification combined cycle integrated reliability parameter of component intelligent integrated energy systems investments liquid hydrocarbons ma management market equilibria markov random process mathematical modeling mathematical models measured control parameters methanol methods of optimization model adjustment model of thermal and hydraulic conditions monopoly monopoly district heating market nickel alloys nodal reliability indices nonlinear equations optimal development optimal operation optimal power-flow optimization optimization studies parameters phase separation phase-separation pro planning planning of test conditions power-generation problems of heat supply process prosumer regenerative ceramic heat exchangers regenerators regulation relative di reversible processes simulation single heat supplier small combined cycle plant staged gasification state estimation steam turbine with back pressure steam-turbine heating plant system tar technical and economical optimization studies. technological scheme analysis theor theoty thermal and hydraulic tests thermal power plants thermodynamics thermohydraulic regimes thermohydraulic tests thermohydraullic regime model volterra kernels waste-heat recovery water distribution-systems wood идентификация интегральные уравнения катализ математическое моделирование оценивание состояния очистка принятие решений смола

   
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Математическое моделирование газификации древесины смолистых продуктов на частицах активных компонентов

Донской И.Г. Математическое моделирование газификации древесины смолистых продуктов на частицах активных компонентов // Изв. вузов. Проблемы энергетики. Т.20. №11-12. 2018. C.107-117. Работа посвящена численному исследованию процесса обращенной слоевой газификации древесной биомассы. Такие процессы используются для получения горючих газов на установках малой мощности. Для повышения качества генераторного газа предлагается использовать смесь древесного топлива с негорючим материалом, который может...

Теги: газификация , катализ , древесина , смола , очистка , математическое моделирование. , gasification , catalysis , wood , tar , gas cleaning , mathematical modeling
Раздел: ИСЭМ СО РАН
Parametric optimization of supercritical power plants using gradient methods

Kler 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 , superheater
Раздел: ИСЭМ СО РАН
Applied Problems and Methodological Approaches to Planning and Implementation of Operating Conditions at District Heating Systems

Shalaginova Z.I., Tokarev V.V. Applied Problems and Methodological Approaches to Planning and Implementation of Operating Conditions at District Heating Systems // Thermal Engineering . Vol.66. No.10. 2019. P.714-729. DOI: 10.1134/S0040601519100057 Abstract: Problems in planning and implementation of the operating conditions for district heating systems (DHSs) are directly related to the controllability and permissibility of the conditions and the reliability, quality, and efficiency of the heat...

Теги: arrangement of operating conditions , district heating systems , experience of application , mathematical modeling , problems of heat supply , software , abstracting , application programs , cogeneration plants , computer software , district heating , energy conserv
Раздел: ИСЭМ СО РАН
An improved technique for identification of mathematical model parameters of thermal power equipment and assessment of its performance

Kler A., Alekseiuk V., Maksimov A. An improved technique for identification of mathematical model parameters of thermal power equipment and assessment of its performance // E3S Web of Conferences. Vol.114. ID: 06009. 2019. DOI: 10.1051/e3sconf/201911406009 The problems of state estimation of thermal power system operation and identification of mathematical model parameters have not been acceptably solved due to the complexity of studied objects and their mathematical models, and the lack of effective...

Теги: accuracy criterion , coal-fired generating unit , identification of parameters , mathematical modeling , measured control parameters , model adjustment , operation conditions , real-time control , relative di , construction equipment , electric load dispatching , ma
Раздел: ИСЭМ СО РАН
Influence of Coal-Biomass Fuel Composition on the Efficiency of its Conversion in Entrained-Flow Gasifiers

Donskoy 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 , process
Раздел: ИСЭМ СО РАН
Optimization studies of combined cycle plant with coal gasification and high temperature heated combustion air

Kler A.M., Marinchenko A.Y., Potanina Y.M. Optimization studies of combined cycle plant with coal gasification and high temperature heated combustion air // Bulletin of the Tomsk Polytechnic University, Geo Assets Engineering. Vol.330. No.3. 2019. P.7-17. DOI: 10.18799/24131830/2019/3/159 Relevance. Integrated gasification combined8cycle plants are considered as one of the promising directions for development of thermal power plants using fossil fuel. Interest in this area is explained by large...

Теги: air8blown gasification , high8temperature air heating , integrated gasification combined cycle , mathematical modeling , technical and economical optimization studies.
Раздел: ИСЭМ СО РАН
Reduced Order Modelling of Pulverized Coal Staged Gasification: Influence of Primary and Secondary Fuel Ratio

Donskoi I.G., Svichev D.A. Reduced Order Modelling of Pulverized Coal Staged Gasification: Influence of Primary and Secondary Fuel Ratio // Energy Systems Research. Vol.1. No.4. 2018. P.27-35. DOI: 10.25729/esr.2018.04.0003 The paper is concerned with the numerical simulation of the coal gasification process in an entrained flow of high-temperature air-steam mixture. Due to the high initial temperature and the process staging, it is possible to obtain an efficient gasification process. The study...

Теги: coal , staged gasification , mathematical modeling , reduced order modeling
Раздел: ИСЭМ СО РАН
Investigating the efficiency of a steam-turbine heating plant with a back-pressure steam turbine and waste-heat recovery

Kler A.M., Stepanova E.L., Maximov A.S. Investigating the efficiency of a steam-turbine heating plant with a back-pressure steam turbine and waste-heat recovery // Thermophysics and Aeromechanics. Vol.25. No.6. 2018. P.929-938. DOI: 10.1134/S0869864318060136 https://link.springer.com/article/10.1134%2FS0869864318060136 The article considers a promising steam-turbine heating plant, which includes a steam turbine with back pressure and a steam boiler operating on natural gas, with waste heat recovery...

Теги: steam-turbine heating plant , mathematical modeling , optimization , efficiency of heat power equipment , steam turbine with back pressure , waste-heat recovery
Раздел: ИСЭМ СО РАН
Квадратичные и кубичные полиномы Вольтерра: идентификация и приложение

Солодуша С.В. Квадратичные и кубичные полиномы Вольтерра: идентификация и приложение // Вестник Санкт-Петербургского университета. Прикладная математика. Информатика. Процессы управления. Т.14. №2. 2018. C.131-144. DOI: 10.21638/11702/spbu10.2018.205 Центральная проблема при построении математической модели нелинейной динамической системы типа вход-выход в виде полинома Вольтерра N-го порядка заключается в идентификации ядер Вольтерра. В настоящее время предложены различные алгоритмы решения данной...

Теги: идентификация , identification , ядра вольтерра , volterra kernels , интегральные уравнения , integral equations , математическое моделирование , mathematical modeling
Раздел: ИСЭМ СО РАН
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

Shalaginova 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
Раздел: ИСЭМ СО РАН


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