Ladle Heating Procedure and Its Influence on the MgO–C-Oxidation
| Autor: | C. G. Aneziris, J. Hubalkova, Olena Volkova, Piotr R. Scheller, B. Sahebkar |
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| Rok vydání: | 2008 |
| Předmět: |
Chemical process
Ladle Materials science Waste management business.industry Mechanical Engineering Metallurgy Combustion Industrial and Manufacturing Engineering Volumetric flow rate Adiabatic flame temperature Flow conditions Mechanics of Materials Natural gas Fluent General Materials Science business |
| Zdroj: | Materials and Manufacturing Processes. 23:758-763 |
| ISSN: | 1532-2475 1042-6914 |
| Popis: | The efficiency of ladle heating can be substantially improved by preheating the combustion air using waste gas, oxygen enriching of the air, or changing the air ratio. These actions lead to an increase of the combustion temperature and a decrease of the waste gas volume rate. Hence the knowledge of the flow conditions in the ladle is of decisive importance for further reduction of the waste gas flow rate. The commercial CFD-code (Computational Fluid Dynamic) Fluent 6.3 was used to model the flow conditions in the ladle. The commercial thermodynamic software FactSage 5.3 was used to model the chemical processes such as combustion temperature, chemical composition of the waste gas, and in special the NO x production during natural gas combustion. For the calculation of the temperature distribution in the ladle lining, the flow model was coupled with a FDM (Finite Difference Method)-based thermal ladle model. The change of the combustion temperature and waste gas composition affects significantly the surface... |
| Databáze: | OpenAIRE |
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