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Analysis of Benchmark Models for EAF Energy Efficiency with Application to Process Improvements by EAF Gas Purging

Title data

Kirschen, Marcus ; Zettl, Karl-Michael ; Echterhof, Thomas ; Pfeifer, Herbert:
Analysis of Benchmark Models for EAF Energy Efficiency with Application to Process Improvements by EAF Gas Purging.
In: Associazione Italiana di Metallurgia (ed.): 11th European Electric Steelmaking Conference : Conference Proceedings. - Milano , 2015 . - pp. 1-10

Abstract in another language

The EAF process is subject of continuous cost and process improvements. Energy models of the EAF process help to benchmark a particular EAF process by accounting for variations in EAF production parameters, i.e. deviations in raw materials quality and process parameters as metal yield, oxygen consumption, power-off times etc. The impact of various EAF process adaptations and improvements on EAF energy efficiency is quantified with such models. In this study the energy model from S. Köhle is reviewed and applied for a series of recent case studies in order to provide hints for increased energy efficiency. One example of EAF process improvement is the impact of gas purging on EAF energy efficiency. Whereas the process improvements of EAF gas purging are easily realized for alloyed and stainless steel making, the proof of process benefits requires a detailed view to process data variations for carbon steel production at present EAFs with modern oxygen injection technology and very varying scrap supply. However, it is shown in this paper that EAF gas purging leads to increase of energy efficiency in recent case studies of EAF gas purging for carbon steels; case studies are presented; pay back time is in the order of few months.

Further data

Item Type: Article in a book
Refereed: Yes
Keywords: EAF; Process Models; Energy Efficiency; Process Improvements; Gas Purging
Institutions of the University: Faculties > Faculty of Engineering Science
Research Institutions > Affiliated Institutes > Fraunhofer Center for High Temperature Materials and Design (HTL)
Result of work at the UBT: No
DDC Subjects: 600 Technology, medicine, applied sciences > 620 Engineering
Date Deposited: 17 Jun 2019 13:54
Last Modified: 17 Jun 2019 13:54
URI: https://eref.uni-bayreuth.de/id/eprint/49568