Gray-box model to control molten steel temperature in Tundish

S. Sakashita, T. Okura, I. Ahmad, M. Kano, H. Kitada, N. Murata

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Controlling molten steel temperature in a tundish is crucial for stable and efficient production of steel products. In this research, a gray-box model is developed by combining a first-principle model and a statistical model. The first-principle model predicts the molten steel temperature in the tundish, and the statistical model predicts the prediction error of the first-principle model. The derived model was then used to derive the molten steel temperature in the Ruhrstahl-Heraeus process at the end of its operation from the target molten steel temperature in the tundish and other process variables. The result of applying the proposed model to real operation data has demonstrated its practicability.

Original languageEnglish
Title of host publication2012 IFAC Workshop on Automation in the Mining, Mineral and Metal Industries, MMM 2012
PublisherIFAC Secretariat
Pages268-269
Number of pages2
Edition23
ISBN (Print)9783902823120
DOIs
Publication statusPublished - 2012 Jan 1
Event2012 IFAC Workshop on Automation in the Mining, Mineral and Metal Industries, MMM 2012 - Gifu, Japan
Duration: 2012 Sep 102012 Sep 12

Publication series

NameIFAC Proceedings Volumes (IFAC-PapersOnline)
Number23
Volume45
ISSN (Print)1474-6670

Conference

Conference2012 IFAC Workshop on Automation in the Mining, Mineral and Metal Industries, MMM 2012
CountryJapan
CityGifu
Period12/9/1012/9/12

Keywords

  • Control
  • Gray-box model
  • Molten steel temperature
  • Prediction
  • Steel making process

ASJC Scopus subject areas

  • Control and Systems Engineering

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  • Cite this

    Sakashita, S., Okura, T., Ahmad, I., Kano, M., Kitada, H., & Murata, N. (2012). Gray-box model to control molten steel temperature in Tundish. In 2012 IFAC Workshop on Automation in the Mining, Mineral and Metal Industries, MMM 2012 (23 ed., pp. 268-269). (IFAC Proceedings Volumes (IFAC-PapersOnline); Vol. 45, No. 23). IFAC Secretariat. https://doi.org/10.3182/20120910-3-JP-4023.00036