NUMERICAL STUDY OF NATURAL GAS COMBUSTION IN A PUSHER FURNACE
DOI:
https://doi.org/10.7494/mafe.2012.38.2.151Keywords:
natural gas combustion, Eddy Dissipation Model, NOx productionAbstract
The paper presents results of the preliminary numerical model of the natural gas combustion in the furnace. The production technology requirements strongly limit the possibility of any action interfering in the process, which could improve the gas pollutants emission. The optimization of the pollutants generation, which strongly depends on the parameters of the process, is important aim to understand concerning the environmental protection regulations. The simple model of methane combustion mechanism has been studied taking into account nitrogen oxides formation. The model, using Eddy Dissipation Model, calculates the concentration of gas pollutants. The input data (e.g. geometry, flows, furnace zoning, types of applied burners etc.) were taking from real device (the pusher furnace from the rolling mill). The calculations were not included the presence of the charge in the process. The emission of pollutants from modeling of methane combustion has been presented. Although the results do not correspond with real condition of the furnace, no charge in the furnace, this first step of modeling allows the extension of the model taking into account the heat exchange in the atmosphere of the furnace.
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