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Show Prototype Burner Design After the modeling work was completed, a prototype High Luminosity Burner has been designed for laboratory testing on an IGT furnace: This first prototype burner is designed to operate at a maximum capacity of 0.5 MM Btu/h with a 4:1 turndown. A large amount of flexibility is designed into this burner to allow for variations in temperatures, residence times, mixing characteristics, and flame section distributions and oxygen/fuel ratios. The burner will also be equipped with test ports to allow collection of gas samples for analysis, to measure temperatures, and to observe the flame. The furnace to be used for laboratory-scale testing of the High Luminosity Burner is a well instrumented test furnace located in IGT's combustion laboratory. This flexible test unit has a firing rate of up to 500,000 Btu/h and is fully equipped with controls and measurement devices. A schematic diagram of the unit is presented in Figure 9. P\ Figure 9. L A B O R A T O R Y - S C A L E TEST F U R N A CE The laboratory-scale furnace is 7 feet long with a 15 in. by 15 in. cross section. The furnace is lined with 3000°F fiberboard insulation. U p to sixteen water-cooled tubes can be lowered into the furnace to provide variable loads. A n available, electric preheater can be used to preheat the natural gas. Nine ports on both sides of the furnace and three ports at the back end provide for gas sample, temperature, and optical data collection. The front end is removable to 15 |