By Charles H. Drummond III
This factor encompasses a selection of papers provided on the 71st convention on Glass difficulties, October 19-20, 2010 on the Ohio kingdom collage, Columbus, Ohio. issues comprise glass melting; glass technology, defects; protection; refractories; recycling; controls; and uncooked fabrics.
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Extra resources for 71st Glass Problems Conference. Ceramic Engineering and Science Proceedings, Volume 32, Issue 1
No overheating or under-heating was observed. As a final check of the validity of the CFD modeling exercise, the measured furnace temperature distribution was compared with the model-predicted furnace temperature distribution after the installation was completed. Figure 10 shows that there is good agreement between the model and the measured temperature distribution after the conversion to oxyfuel operation. 28 ■ 71st Conference on Glass Problems Oxy-Fuel Conversion Reduces Fuel Consumption in Fiberglass Melting Figure 9: Combustion space temperature distribution within FGI's new oxy-fuel furnace.
In addition to installation at the time of scheduled furnace repairs, in most instances this technology can be installed on-the-fly while the furnace is in production. This paper will provide review of a fullfurnace conversion accomplished at furnace rebuild in the fiberglass industry. Since the glass company's primary motivation to convert their melting operation to oxy-fuel was fuel savings, most of the focus will be about the fuel efficiency improvement. The review will include discussion of burner features that act to maximize combustion efficiency by increasing the amount of energy transferred directly from the flame to the batch materials and to the molten glass.
The temperature distribution is shown in the plane of the burners, and the peek temperature in this plane is about 3500°F. As shown in Figure 7, the simulation faithfully revealed the temperature distribution inside the original air-fuel furnace. 26 ■ 71st Conference on Glass Problems Oxy-Fuel Conversion Reduces Fuel Consumption in Fiberglass Melting Figure 6: Combustion space temperature distribution within FGI's original air-fuel furnace. Figure 7: Comparison of measured and CFD-predicted crown and glass (bottom) temperature distribution in the furnace for original air-fuel operation.