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Laser-induced fluorescence measurements of formaldehyde in a methane/air diffusion flame

✍ Scribed by Joel E. Harrington; Kermit C. Smyth

Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
666 KB
Volume
202
Category
Article
ISSN
0009-2614

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✦ Synopsis

Laser-induced fluorescence has been observed form the formaldehyde A' A,-jt 'A, electronic transition in a well characterized, laminar methane/air diffusion flame burning at atmospheric pressure. This represents the first optical measurement in flames of naturally occurring formaldehyde, an important intermediate in the oxidation of hydrocarbons. Both 355 nm and tunable dye laser excitation of fluorescence are demonstrated. The observed fluorescence signals are corrected for partition function effects and for estimated collisional quenching rates to obtain relative concentration profiles.

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