A5013970049- Metallurgical Processes and Thermodynamics
- Iron and Steelmaking Processes
- Radiative Heat Transfer Studies
- Industrial Engineering and Technologies
- Modeling, Simulation, and Optimization
- Metal Extraction and Bioleaching
- Mineral Processing and Grinding
- Welding Techniques and Residual Stresses
- Biodiesel Production and Applications
- Materials Engineering and Processing
- Thermochemical Biomass Conversion Processes
- Microstructure and Mechanical Properties of Steels
RWTH Aachen University
2017-2021
Steelmaking based on direct reduced iron (DRI, and its compacted derivative hot briquetted iron, HBI) is an anticipated important global alternative to current steel production FeOx reduction in blast furnaces due lower specific CO2 emission. The majority of DRI melted refined the electric arc furnace with different process conditions compared melting scrap raw material composition being rather different. We provide data analysis slag charges vs. for 16 industrial (EAFs). Suggestions...
Increasing demands on the electric arc furnace (EAF) with regard to sustainability and energy efficiency are leading various technological innovations. To reduce carbon footprint of steel production in EAFs, fossil coal can be substituted by biochar as investigated within GreenEAF research projects. Palm kernel shells (PKS) used for industrial long‐term trials showed no negative impact product quality or consumption technically feasible, but led different reaction behavior. For further...
A simulator and an algorithm for the automatic creation of operation charts based on process conditions were developed basis existing comprehensive electric arc furnace model. The allows direct user input real-time display results during simulation, making it usable training teaching operators. control feature offers a quick automated evaluation large number scenarios or changes in conditions, raw materials, equipment used. chart is adjusted automatically to give comparable at tapping...
In this paper, an approach to the enhancement of a dynamic process simulation model electric arc furnace (EAF) is described by improving modeling and heat transfer especially radiation within EAF. The presented work continuation Logar, Dovžan, Škrjanc on mass thermochemistry in EAF improved including electrode considering convective radiative from electrodes, for example, surface electrodes as surface. Furthermore, melting geometry implemented way allow more geometric variability scrap...
The electric arc furnace (EAF) represents the most important process route for recycling of steel and second productive steelmaking overall. Considering large production quantities, EAF is subject to continuous optimization, even small improvements can lead a significant reduction in resource consumption operating cost. A common way investigate operation through application mathematical models. In this study applicability three different statistical modeling approaches prediction energy...
The determination of view factors (VF) is a central component the heat transfer model in comprehensive electric arc furnace process models. Due to complex nature process, simplifying assumptions are necessary allow efficient estimation VF. These simplifications mainly deal with geometrical representation and methods calculate resulting Such have been applied several studies; however, while results complete models validated extensively, calculated VF not examined detail. Herein, two...