A mathematical model for the thermal state of a steel ladle

被引：4

作者：

Makela, Ilpo ^{[1
,2
]}

Visuri, Ville-Valtteri ^{[1
]}

Fabritius, Timo ^{[1
]}

机构：

[1] Univ Oulu, Proc Met Res Unit, Oulu, Finland

[2] Univ Oulu, Proc Met Res Unit, POB 4300, Oulu 90014, Finland

来源：

IRONMAKING & STEELMAKING | 2023年 / 50卷 / 07期

关键词：

Steelmaking; ladle; heat transfer; modelling; HEAT-TRANSFER; STEELMAKING LADLE; TEMPERATURE; SIMULATION; PREDICTION;

D O I：

10.1080/03019233.2023.2201544

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

A dynamic one-dimensional mathematical model was developed for predicting the thermal state of a steelmaking ladle. The model is intended to be used in process control applications, in which fast computational times are desirable alongside model accuracy. The calculation domain was discretized using the finite difference method, and time integration was performed using both the implicit Euler and Crank-Nicolson methods, the performances of which were compared. The model was implemented in Python programming language and validated using data from our own measurements and other studies available in the literature. The results indicate that the model can reproduce the measured temperature evolution of the ladles within 5 degrees C at best. The worst performance was observed during cooling, where the model underestimates the temperature at the innermost measurement point by up to 200 degrees C. With computation times of around 16-23 s for one hour of simulation, the model is computationally sufficiently fast for online applications.

引用

页码：867 / 877

页数：11

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