Reduction of the droplet luminosity in the formaldehyde PLIF of acetone spray flame

Ramgopal Sampath; Thibault Guiberti; William L. Roberts; Gaetano Magnotti

Reduction of the droplet luminosity in the formaldehyde PLIF of acetone spray flame

Ramgopal Sampath, Thibault Guiberti, William L. Roberts, Gaetano Magnotti

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Formaldehyde planar laser-induced fluorescence (HCHO-PLIF) is performed in a spray flame of acetone in a canonical burner. The laser interaction with the acetone droplets results in the additional contribution that interferes with the HCHO-PLIF signal of interest and limits the applicability of the technique. The spectral analysis of the droplet interference contribution shows four intense peaks corresponding to the stimulated Raman scattering (SRS) of the vibrational stretch of C-H bond. In this paper, we show that by doping the acetone with Rhodamine 6G, the SRS contribution is greatly suppressed. Quantitative measurements of the SRS interference contribution on the HCHO-PLIF signal are presented for two different dye concentrations, over a wide range of laser pulse energies, and with different filters combinations.

Original language	English (US)
Title of host publication	12th Asia-Pacific Conference on Combustion, ASPACC 2019
Publisher	Combustion Institute
State	Published - Jan 1 2019

Bibliographical note

KAUST Repository Item: Exported on 2022-02-17
Acknowledgements: This research was funded by King Abdullah University of Science and Technology (KAUST)

Cite this

@inproceedings{8566edc52b7c48539423a38db044d1ff,

title = "Reduction of the droplet luminosity in the formaldehyde PLIF of acetone spray flame",

abstract = "Formaldehyde planar laser-induced fluorescence (HCHO-PLIF) is performed in a spray flame of acetone in a canonical burner. The laser interaction with the acetone droplets results in the additional contribution that interferes with the HCHO-PLIF signal of interest and limits the applicability of the technique. The spectral analysis of the droplet interference contribution shows four intense peaks corresponding to the stimulated Raman scattering (SRS) of the vibrational stretch of C-H bond. In this paper, we show that by doping the acetone with Rhodamine 6G, the SRS contribution is greatly suppressed. Quantitative measurements of the SRS interference contribution on the HCHO-PLIF signal are presented for two different dye concentrations, over a wide range of laser pulse energies, and with different filters combinations.",

author = "Ramgopal Sampath and Thibault Guiberti and Roberts, {William L.} and Gaetano Magnotti",

note = "KAUST Repository Item: Exported on 2022-02-17 Acknowledgements: This research was funded by King Abdullah University of Science and Technology (KAUST)",

year = "2019",

month = jan,

day = "1",

language = "English (US)",

booktitle = "12th Asia-Pacific Conference on Combustion, ASPACC 2019",

publisher = "Combustion Institute",

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TY - GEN

T1 - Reduction of the droplet luminosity in the formaldehyde PLIF of acetone spray flame

AU - Sampath, Ramgopal

AU - Guiberti, Thibault

AU - Roberts, William L.

AU - Magnotti, Gaetano

N1 - KAUST Repository Item: Exported on 2022-02-17 Acknowledgements: This research was funded by King Abdullah University of Science and Technology (KAUST)

PY - 2019/1/1

Y1 - 2019/1/1

N2 - Formaldehyde planar laser-induced fluorescence (HCHO-PLIF) is performed in a spray flame of acetone in a canonical burner. The laser interaction with the acetone droplets results in the additional contribution that interferes with the HCHO-PLIF signal of interest and limits the applicability of the technique. The spectral analysis of the droplet interference contribution shows four intense peaks corresponding to the stimulated Raman scattering (SRS) of the vibrational stretch of C-H bond. In this paper, we show that by doping the acetone with Rhodamine 6G, the SRS contribution is greatly suppressed. Quantitative measurements of the SRS interference contribution on the HCHO-PLIF signal are presented for two different dye concentrations, over a wide range of laser pulse energies, and with different filters combinations.

AB - Formaldehyde planar laser-induced fluorescence (HCHO-PLIF) is performed in a spray flame of acetone in a canonical burner. The laser interaction with the acetone droplets results in the additional contribution that interferes with the HCHO-PLIF signal of interest and limits the applicability of the technique. The spectral analysis of the droplet interference contribution shows four intense peaks corresponding to the stimulated Raman scattering (SRS) of the vibrational stretch of C-H bond. In this paper, we show that by doping the acetone with Rhodamine 6G, the SRS contribution is greatly suppressed. Quantitative measurements of the SRS interference contribution on the HCHO-PLIF signal are presented for two different dye concentrations, over a wide range of laser pulse energies, and with different filters combinations.

UR - http://hdl.handle.net/10754/666468

UR - http://www.combustionsociety.jp/aspacc19/program_final0711.html#CH0238

UR - http://www.scopus.com/inward/record.url?scp=85083950211&partnerID=8YFLogxK

M3 - Conference contribution

BT - 12th Asia-Pacific Conference on Combustion, ASPACC 2019

PB - Combustion Institute

ER -

Reduction of the droplet luminosity in the formaldehyde PLIF of acetone spray flame

Abstract

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