Guang-tong TANG, Hui-bo YAN, Chao-yang WANG, Zhi-qiang LIU, Xin LI, Xiao-pei YAN, Zhong-nong ZHANG, Chun LOU. Experimental Investigation on Hydrocarbon Diffusion Flames: Effects of Combustion Atmospheres on Flame Spectrum and Temperature[J]. Spectroscopy and Spectral Analysis, 2022, 42(5): 1654
- Spectroscopy and Spectral Analysis
- Vol. 42, Issue 5, 1654 (2022)
Fig. 1. Diagram of experimental setup
Fig. 2. Color flame images of four cases
(a): Shutter speeds are fixed at 1/60 s; (b): Shutter speeds are 1/39 000, 1/30 000, 1/1 000, and 1/100 s, respectively (from case 1 to case 4)
(a): Shutter speeds are fixed at 1/60 s; (b): Shutter speeds are 1/39 000, 1/30 000, 1/1 000, and 1/100 s, respectively (from case 1 to case 4)
Fig. 3. Spectral radiative intensities from 200 to 1 700 nm at different normalized heights of flame axis
(a): Case 1; (b): Case 2; (c): Case 3; (d): Case 4
(a): Case 1; (b): Case 2; (c): Case 3; (d): Case 4
Fig. 4. Spectral radiative intensities from 2 500 to 5 000 nm at different normalized heights of flame axis
(a): Case 1; (b): Case 2; (c): Case 3; (d): Case 4
(a): Case 1; (b): Case 2; (c): Case 3; (d): Case 4
Fig. 5. Temperatures at different normalized heights of flame axis in case 1 to case 3
Fig. 6. Band emissive power of species at different normalized height of flame axis for case 1 to case 4
(a): Soot; (b): CO2
(a): Soot; (b): CO2
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Table 1. Experimental cases
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Table 2. Radiation power in four cases (Unit: W)
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