Computational fluid dynamics study of new vacuum degassing process

Manas Kumar Mondal, Govind Sharan Gupta, Shin Ya Kitamura, Nobuhiro Maruoka

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Recently, the demand of the steel having superior chemical and physical properties has increased for which the content of carbon must be in ultra low range. There are many processes which can produce low carbon steel such as tank degasser and RH (Rheinstahl-Heraeus) processes. It has been claimed that using a new process, called REDA (Revolutionary Degassing Activator), one can achieve the carbon content below 10ppm in less time. REDA process, in terms of installment cost, is in between the tank degasser and RH processes. As such, REDA process has not been studied thoroughly. Fluid flow phenomena affect the decarburization rate the most besides the chemical reaction rate. Therefore, momentum balance equations along with k-? turbulent model have been solved for gas and liquid phases in two-dimension (2D) for REDA process. The fluid flow phenomena have been studied in details for this process by varying gas flow rate, depth of immersed snorkel in the steel, diameter of the snorkel and change in vacuum pressure. It is found that the design of the snorkel affects the melt circulation of the bath significantly.

Original languageEnglish
Article number4
JournalChemical Product and Process Modeling
Volume4
Issue number3
DOIs
Publication statusPublished - 2009 Aug 30

Keywords

  • CFD
  • Circulation
  • Modelling
  • REDA process
  • Steelmaking

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Modelling and Simulation

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