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Razvoj analitičnega modela elektroobločne peči za fazo rafinacije z optimizacijo parametrov
ID Vukalić, Selma (Author), ID Logar, Vito (Mentor) More about this mentor... This link opens in a new window

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Abstract
Magistrska naloga se osredotoča na razvoj analitičnega modela elektroobločne peči. Glavni cilj naloge je ustvariti poenostavljen model za oceno temperature taline v elektroobločni peči, ki se uporablja pri procesu taljenja jekla, in sicer za zadnji del obratovanja peči, tj. fazo rafinacije. Zaradi visokih temperatur v peči, kjer se proces taljenja izvaja, ter zaradi načina izvajanja meritev temperature, se le-te ne izvajajo neprekinjeno. To pomanjkljivost skušamo rešiti z razvojem modela, ki omogoča dovolj natančno oceno temperature, s čimer zmanjšamo potrebo po pogostih merjenjih, ki privedejo do izgub energije, hkrati pa operaterjem peči omogočimo boljši vpogled v trenutno stanje v peči. Prvi del naloge se posveča modeliranju faze rafinacije, kjer je peč z vidika modela razdeljena na različna območja. Prehajanje energije med temi območji in kemijske reakcije so matematično opisane v obliki enačb. V drugem delu naloge je predstavljen optimizacijski algoritem simuliranega ohlajanja, ki se uporablja za določanje optimalnih parametrov modela elektroobločne peči. Ta pristop omogoča učinkovito prilagajanje modela realnim pogojem in povečuje natančnost ocene temperature. V zaključnem delu naloge so predstavljeni rezultati in vrednotenje razvitega modela. Poleg tega se obravnava možnosti nadaljnjega dela na tem raziskovalnem področju in razpravlja o potencialnih izboljšavah ter prilagoditvah modela, ki izhajajo iz pridobljenih rezultatov.

Language:Slovenian
Keywords:Elektroobločna peč, modeliranje, optimizacija, simulirano ohlajanje, faza rafinacije
Work type:Master's thesis/paper
Organization:FE - Faculty of Electrical Engineering
Year:2024
PID:20.500.12556/RUL-155316 This link opens in a new window
COBISS.SI-ID:190384899 This link opens in a new window
Publication date in RUL:26.03.2024
Views:485
Downloads:72
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Secondary language

Language:English
Title:Development of the analytical electric arc furnace model for the refining phase using parameter optimization
Abstract:
The master thesis focuses on the development of an analytical model of the electric arc furnace. The main objective is to create a simplified model for the estimation of the melt temperature in the electric arc furnace used in the steel melting process for the last part of the furnace operation, i.e. the refining phase. Due to the high temperatures within the furnace where the melting process occurs, and the manner in which temperature measurements are conducted, they are not performed continuously. We aim to overcome this limitation by developing a model that provides sufficiently accurate temperature estimation, thereby reducing the need for frequent measurements that lead to energy losses. Simultaneously, this gives furnace operators a better insight into the current state of the furnace. The first part of this paper is devoted to modelling the refining phase, where, from the point of view of the model, the furnace is divided into different zones. The energy transfer between these zones and the chemical reactions are described mathematically in the form of equations. In the second part of this paper, we present the simulated annealing optimization algorithm, utilized for determining the optimal parameters of the electric arc furnace model. This approach facilitates the efficient adaptation of the model to real-world conditions, thereby enhancing the accuracy of temperature estimation. In the concluding section of this paper, we present the results and evaluation of the developed model. Furthermore, we discuss options for further work in this area of research and potential improvements and adaptations to the model arising from the obtained results.

Keywords:Electric arc furnace, modeling, optimization, simulated annealing, refining phase

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