Laser-induced fluorescence of CF{sub 2} from a CH{sub 4} flame and an H{sub 2} flame with addition of HCFC-22 and HFC-134a
Journal Article
·
· Combustion and Flame
- Wayne State Univ., Detroit, MI (United States)
- Purdue Univ., West Lafayette, IN (United States)
Laser-induced fluorescence (LIF) of CF{sub 2} radicals in atmospheric diffusion flames is reported for the first time. When a CH{sub 4} flame is premixed with HCFC-22 (CCIF{sub 2}H) or HFC-134a (CF{sub 3}CFH{sub 2}), fluorescence spectra between 250 and 314 nm of the {tilde A}{sup 1}B{sub 1}-{tilde X}{sup 1}A{sub 1} transition from CF{sub 2} are observed when the flame is probed by a KrF laser. When these two halocarbons are added to an atmospheric H{sub 2} flame, similar LIF spectra of CF{sub 2} are also observed. Two-dimensional LIF images from the flames show that the CF{sub 2} radicals are localized between the flame center and the flame front.
- OSTI ID:
- 619601
- Journal Information:
- Combustion and Flame, Journal Name: Combustion and Flame Journal Issue: 1-2 Vol. 113; ISSN CBFMAO; ISSN 0010-2180
- Country of Publication:
- United States
- Language:
- English
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