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On the Importance of Model Selection for CFD Analysis of High Temperature Gas-Solid Reactive Flow; Case Study

Post Combustion Chamber of HIsarna Off-Gas System

Journal Article (2023)
Authors

Ashkan Hosseini (TU Delft - Team Yongxiang Yang)

Johannes Hage (Tata Steel)

Koen Meijer (Tata Steel)

Sven Erik Offerman (TU Delft - Team Erik Offerman)

Y Yang (TU Delft - Team Yongxiang Yang)

Research Group
Team Yongxiang Yang
Copyright
© 2023 A. Hosseini, Johannes Hage, Koen Meijer, S.E. Offerman, Y. Yang
To reference this document use:
https://doi.org/10.3390/pr11030839
More Info
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Publication Year
2023
Language
English
Copyright
© 2023 A. Hosseini, Johannes Hage, Koen Meijer, S.E. Offerman, Y. Yang
Related content
Research Group
Team Yongxiang Yang
Issue number
3
Volume number
11
DOI:
https://doi.org/10.3390/pr11030839
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Abstract

In this paper a CFD analysis of HIsarna off-gas system for post combustion of CO-H2-carbon particle mixture is presented to evaluate the effect of different sub-models and parameters on the accuracy of predictions and simulation time. The effects of different mesh type, mesh grid size, radiation models, turbulent models, kinetic mechanism, turbulence chemistry interaction models, including and excluding gas-solid reactions, number of reactive solid particles are investigated in detail. Based on the accuracy of the predictions and agreement with counterpart measured values, the best combination is selected and conclusions are derived. It was found that radiation and turbulence chemistry interaction model have a major effect on the temperature and composition profile prediction along the studied off-gas system, compared to the variations in other models. The effect of these two models becomes even more evident when the temperature and fuel content of the flue gas are high.