CFD modelling of the flow through a grate-kiln

Publikation: Forskning - peer-reviewArtikel i konferenspublikation/proceedings

Reine Granström ; Staffan Lundström ; Daniel Marjavaara ; Simon Töyrä

  • LKAB

As part of an investigation regarding secondary reduction of NOx emissions in a grate-kiln iron ore pelletizing plant, the aim of this specific research is to develop a CFD model that enhances the understanding of the aerodynamics and mixing of species inside the rotary kiln. At first, a parametric study of the pure airflow through the kiln is carried out and for certain conditions, a transient behaviour similar to that of vortex shedding was observed, with a dependence on momentum flux ratio between the secondary air jets. Further, the development of a preliminary coal combustion model is set out, which is in need of continued work in order to produce reliable predictions of various parameters relevant to the reduction process. However, the effect of the combustion on the flow field is limited, indicating that the pure airflow model can be used to broadly investigate the influence of the secondary air flow.

SpråkEngelska
TitelProceedings from Seventh International Conference on Computational Fluid Dynamics in Minerals and Process Industries : CSIRO, Melbourne, Australia
Sidantal6
Publiceringsdatum2009
StatusPublicerat

Konferens

KonferensInternational Conference on CFD in the Minerals and Process Industries
Nummer7
LandAustralien
OrtMelbourne
Period09/12/0911/12/09
Internetadresshttp://www.cfd.com.au/cfdconf/

Bibliografisk uppgift

CD-ROM

Evenemang (konferens etc.)

International Conference on CFD in the Minerals and Process Industries

dec. 09 2009 - dec. 11 2009

Melbourne, Australien

Evenemang (konferens etc.): Konferens