Download 71st Glass Problems Conference: Ceramic Engineering and by Charles H. Drummond III PDF

By Charles H. Drummond III

This factor encompasses a number of papers offered on the 71st convention on Glass difficulties, October 19-20, 2010 on the Ohio nation collage, Columbus, Ohio. issues comprise glass melting; glass technology, defects; safeguard; refractories; recycling; controls; and uncooked fabrics.

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Road tanker delivered, liquid oxygen is stored in a cryogenic storage vessel at the glass factory. The heavily insulated cryogenic storage tank, holds the oxygen in the liquid state at about 300oF (-I860C). The oxygen is typically vaporized using ambient air vaporizers and typical storage pressures range up to about 350 psig (24 Barg). The oxygen flow control skid is required to receive vaporized oxygen from the LOX storage tank and safely deliver it to the burner. Typically this is coupled with a fuel flow control skid to form a complete combustion control system.

The melting furnace is a large refractory structure enclosed in structural and binding steel. Many different types of refractory materials are used in furnace construction. Each one is carefully selected to be used in certain areas where it will perform with a long life and not contribute to product defects. The melting area of furnace is a region where the glass batch material is melted by energy released from the combustion of natural gas. The combustion process includes the pre-heating of combustion air in structures called regenerators.

The airfuel combustion operation was modeled using computational fluid dynamics (CFD) to obtain a baseline operating point against which predicted oxy-fuel operations could be made. Commercially available software Fluent (ANSYS INC, 2006) was used for this purpose. This also allowed the airfuel operating measurements to be checked against CFD model-predicted results to check the accuracy of the CFD model. Figure 6 shows the combustion space temperature distribution within FGI's original air-fuel furnace.

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