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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
(Hrsg.):
11th European Electric Steelmaking Conference : Conference Proceedings. -
Milano
,
2015
. - S. 1-10
Abstract
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.
Weitere Angaben
| Publikationsform: | Aufsatz in einem Buch |
|---|---|
| Begutachteter Beitrag: | Ja |
| Keywords: | EAF; Process Models; Energy Efficiency; Process Improvements; Gas Purging |
| Institutionen der Universität: | Fakultäten > Fakultät für Ingenieurwissenschaften Forschungseinrichtungen > Institute in Verbindung mit der Universität > Fraunhofer-Zentrum für Hochtemperatur-Leichtbau (HTL) Fakultäten Forschungseinrichtungen Forschungseinrichtungen > Institute in Verbindung mit der Universität |
| Titel an der UBT entstanden: | Nein |
| Themengebiete aus DDC: | 600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften |
| Eingestellt am: | 17 Jun 2019 13:54 |
| Letzte Änderung: | 17 Jun 2019 13:54 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/49568 |