Situational model of technological operations for secondary metallurgy

• Autorzy: Zhadanos O. , Derevyanko I. , Chaika D. , Kukushkin O.

Identyfikatory

DOI

10.5604/01.3001.0012.6669

• Języki publikacji: EN

Abstrakty

EN

Purpose: The aim of this study was development of a computer situational model of heat and power processes and transport operations for secondary steelmaking (SSM) to evaluate the effectiveness of the proposed SSM energy regimes and minimization the consumption of energy resources. Design/methodology/approach: For the solution of the tasks were used next methods: analytical and statistical methods of mathematical modeling; method of dynamic programming for the development of technological recommendations for energy modes on LF; Harel state charts to evaluate the effectiveness of the applied models. Findings: In order to provide rational energy regimes for SSM, it is necessary to introduce a new controlled parameter - the optimum time to start heating the melt at the ladle furnace unit (LF), which is determined by solving the dynamic programming task. The melt heating start time must be selected in such a way as to ensure that all the necessary technological operations are performed during metal processing in the LF, taking into account schedule constraints, and that the heating of the metal must be carried out with the maximum energy efficiency. Research limitations/implications: The main objective of the present study was to apply the mathematical modeling methods to ensure rational energy regimes of SSM. Practical implications: The developed situational model of technological operations for SSM will allow finding reserves to increase the productivity and quality of the process, and to evaluate the effectiveness of new technological solutions. Originality/value: To ensure an energy-efficient treatment of steel in LF, it is necessary: the time for starting the heating of the metal is chosen such that the energy efficiency of the LF, which depends on the thickness of the slag layer, is maximum at each stage; increase the power that is supplied to the heating of the melt by switching the voltage taps of the transformer as the thickness of the slag cover increases.

Słowa kluczowe

EN

situational model; secondary metallurgy; heat energy models; method of dynamic programming

PL

obróbka pozapiecowa; metoda programowania dynamicznego

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2018
• Tom: Vol. 89, nr 1
• Strony: 27--34
• Opis fizyczny: Bibliogr. 22 poz., rys.

Twórcy

autor

Zhadanos O.

• Department of Electrometallurgy, Electrometallurgy Faculty, National Metallurgical Academy of Ukraine, Gagarina Avenue, 4, Dnipro, 49600, Ukraine

autor

Derevyanko I.

• Department of Electrometallurgy, Electrometallurgy Faculty, National Metallurgical Academy of Ukraine, Gagarina Avenue, 4, Dnipro, 49600, Ukraine

autor

Chaika D.

• MP Dneprosteel LLC, Vinokurova Str. 4, Dnipro, 49081, Ukraine

autor

Kukushkin O.

• Department of Electrometallurgy, Electrometallurgy Faculty, National Metallurgical Academy of Ukraine, Gagarina Avenue, 4, Dnipro, 49600, Ukraine

Bibliografia

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• [5] D. Harel, Statecharts: A Visual Formalism for Complex Systems, Science of Computer Programming 8 (1987) 231-274.
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• [16] L. Zéphyr, P. Lang, B.F. Lamond, P. Côté, Approximate stochastic dynamic programming for hydroelectric production planning, European Journal of Operational Research 262/2 (2017) 586-601.
• [17] J. Meissner, O.V. Senicheva, Approximate dynamic programming for lateral transshipment problems in multi-location inventory systems, European Journal of Operational Research265/1 (2018) 49-64.
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Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).