Analysis of Numerical Simulation on Combustion of Different Fuels in Float Glass Furnace

The feasibility and reliability of numerical simulation model and calculation method are verified by comparing the simulation results with the relevant data collected during the operation of the furnace in the actual plant. Under the condition of constant thermal power of the furnace, the combustion status, temperature distribution and nitrogen oxides formation in combustion space of the furnace are simulated and studied when the fuel is heavy oil and petroleum coke respectively. The study found that large-scale transverse circumfluence is formed in the refining zone in the back of the furnace and the temperature system is stable and consistent whether the fuel is heavy oil or petroleum coke. When the fuel is petroleum coke, the combustion in the furnace is more intense and the temperature of the batch is higher, but the crown is eroded more strongly by high temperature flow. When the fuel is heavy oil, the scope of the high temperature zone whose temperature is higher than 2073K is wider, and the temperature of the glass level and the crown in the furnace is slightly higher, but the production of nitrogen oxides with burning heavy oil is much more than that of burning petroleum coke.