Visualization of OH radical in a laminar premixed flame with various stoichiometric ratios by planar laser-induced fluorescence

Lobasov, Aleksey Sergeevich; Chikishev, Leonid Mikhaylovich; Dulin, Vladimir Mikhaylovich

2014 2(15)

Short abstract

Pages:	29 - 32
Language:	RU
Ref.:	5

Download paper: [RU] 2014_2(15)_6.pdf

VISUALIZATION OF OH RADICAL IN A LAMINAR PREMIXED FLAME WITH VARIOUS STOICHIOMETRIC RATIOS BY PLANAR LASER-INDUCED FLUORESCENCE

Lobasov A.S.^1,2, Chikishev L.M.^1,2, Dulin V.M.^1,2

¹ Institute of Thermophysics SB RAS, Novosibirsk, Russia
² Novosibirsk State University, Novosibirsk, Russia

Citation:

Lobasov, A.S., Chikishev, L.M. and Dulin, V.M., (2014) Visualization of OH radical in a laminar premixed flame with various stoichiometric ratios by planar laser-induced fluorescence, Modern Science: Researches, Ideas, Results, Technologies, Iss. #2(15), PP. 29 - 32.

Keywords:

premixed flame; Laser diagnostics; PLIF; lean combustion

Abstracts:

For an improved understanding of combustion it is important to have information about concentration distribution of various radicals. Laser-induced fluorescence of OH radicals has been widely used in combustion research for the determination of concentration, flame structures or temperature. A propane-air laminar premixed flame at atmospheric pressure was object of investigation. Experimental measurement of excitation spectrum OH radicals was carried out in spectral range 283-284 nm in increments of 5 pm. The excitation spectrum of OH radicals was compared with excitation spectrum which has been calculated using the LifBase software. OH radicals was excited in the υ''=0 → υ'=1 band of the A-X electronic system at wavelength 283.55 nm and spectrally resolved detected in the (0,0) and (1,1) vibrational bands around 305 - 320 nm.

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