Overall Stoichiometry

Oxygen concentration (vol dry) in the combustion products and relative error in oxygen concentration as a function of stoichiometry for methane combustion in air and oxygen (50 50) assuming a 5 error in air and oxygen flow rates. Figure 4. Oxygen concentration (vol dry) in the combustion products and relative error in oxygen concentration as a function of stoichiometry for methane combustion in air and oxygen (50 50) assuming a 5 error in air and oxygen flow rates. Carbon dioxide...

Instrumentation And Experimental Procedure Gas Concentration

Combustion gases were sampled by drawing them through a water-cooled, stainless steel collection probe using a four-head suction pump. As illustrated in Fig. 3, the probe was made of a 0.875 in 22.2 mm outside diameter, 9.8 ft 3 m long annular tube with a 0.375 in 9.5 mm suction tube on the inside. The gases were rapidly quenched upon being drawn into the tube due to the high wa-ter-cooling rate in the surrounding annulus. The combustion gases were drawn through the probe and passed through two...

Exhaust Measurements

Exhaust profile measurements of gas temperature and species concentrations were made for several furnace operating conditions. These settings included 1 high-fire condition, which is the normal operating condition of the furnace 2 low-fire condition, which is used when tapping the furnace or when the furnace roof temperature exceeds a predetermined maximum value 3 high-fire, low-stoichiometry condition, selected to determine its impact on NO emissions 4 high-fire, highest oxygen enrichment...