Numerical Simulation of the Effect Rule of the Burners’ InstallationHeight on Combustion Space in Oxyfuel Glass Furnace

Journal of Wuhan University of Technology ›› 2011, Vol. 33 ›› Issue (3) : 26-31.

XIE Junlin, JIN Mingfang, MEI Shuxia

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In this paper, numerical simulation with software FLUENT was carried out in combustion space of an oxyfuel glass furnace.On the oxyfuel combustion conditions, when the burners installed in three different heights of the furnace,compare and analyze their temperature fields, flow fields and the erosion of the crown by alkali volatilization in combustion space ,which can provide basis for operating parameters of the burners and instruct the design and optimization effectively in oxyfuel glass furnace.Our research shows that the burners’ installation height has a great effect on temperature fields of the combustion space and inappropriate installation height will result in decreasing of the heat transfer efficiency to glass surface and increasing of the alkali volatilization. When the burners installed at the height of 0.3 m, the gas flow tends to wash out the melted glass surface and has great average velocity; when the burners installed at the height of 0.5 m,the flame gas flow tends to go upwards and the average mole fraction of water vapor is obviously high near the bottom of the combustion space, which causes alkali vapors volatilize; when the burners installed at the height of 0.4 m, volatilization rate of alkali is the least,but high temperature zone appears in the crown and the heat transfer efficiency is not high.Therefore,the reasonable installation height of burners should be between 0.3～0.4 m.

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XIE Junlin, JIN Mingfang, MEI Shuxia

. Numerical Simulation of the Effect Rule of the Burners’ InstallationHeight on Combustion Space in Oxyfuel Glass Furnace. Journal of Wuhan University of Technology. 2011, 33(3): 26-31

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Published
2011-03-31
Issue Date
2011-03-31