Total radiation measurements for oxygen-enhanced/natural gas diffusion flames are reported here. The parameters that were studied included the oxidizer composition (Ω = 0.25−1.00), the burner firing rate (qf = 3−28 kW), the equivalence ratio (φ = 0.55−1.45), and the axial (Lr = 0.5−6.5) and radial (Dr = 0.4−1.0) position of the radiometer. The measured radiation ranged from 10 to 65 kW m−2. The nozzle Reynolds numbers ranged from 480 to 10 300. The location of the peak flame radiation ranged from 9 to 15% of the visible flame length. The stability limits and visible flame heights are also reported for a burner with a wide operating range.
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Baukal et al. (1997) studied this question.
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