C2 Production and Excitation in Sooting Flames using Visible Laser Radiation : Implications for Diagnostics in Sooting Flames
Bengtsson, Per Erik LU
and Aldén, Marcus
LU
(1991)
In Combustion Science and Technology
77(4-6).
p.307-318
- Abstract
Swan band emission of C2. which had been produced and excited (d3∏x←a 3∏u, Δ v = 0) by focused, tunable, visible laser radiation, was studied in sooting ethylene flames. The C2signal from the sooting regions of the flames was found to be proportional to the measured volume fractions of soot, indicating laser-vaporized soot to be the source of the signal, and as such it can be used as a diagnostic tool for point measurements of the volume fraction of soot. C2emission was detected for all incident wavelengths between 485 and 540 nm, with a C2signal 1–2 orders of magnitude higher when the wavelength was tuned to a C2 resonance than when tuned... (More)
Swan band emission of C2. which had been produced and excited (d3∏x←a 3∏u, Δ v = 0) by focused, tunable, visible laser radiation, was studied in sooting ethylene flames. The C2signal from the sooting regions of the flames was found to be proportional to the measured volume fractions of soot, indicating laser-vaporized soot to be the source of the signal, and as such it can be used as a diagnostic tool for point measurements of the volume fraction of soot. C2emission was detected for all incident wavelengths between 485 and 540 nm, with a C2signal 1–2 orders of magnitude higher when the wavelength was tuned to a C2 resonance than when tuned to a wavelength between the Swan bands. High concentrations of laser-produced C2 and emission from C2Swan bands can, through interference effects, limit the applicability of laser diagnostic techniques to sooting flames.
(Less)
- author
- Bengtsson, Per Erik
LU
and Aldén, Marcus
LU
- organization
- publishing date
- 1991-06-01
- type
- Contribution to journal
- publication status
- published
- keywords
- C2 Interference, Laser Diagnostics, Soot Vaporization, Sooting Flames
- in
- Combustion Science and Technology
- volume
- 77
- issue
- 4-6
- pages
- 12 pages
- publisher
- Taylor & Francis
- external identifiers
-
- scopus:0011826238
- ISSN
- 0010-2202
- DOI
- 10.1080/00102209108951733
- language
- English
- LU publication?
- yes
- id
- fbcac4d9-bedf-49aa-b796-5bb9c83b8595
- date added to LUP
- 2016-06-29 17:02:44
- date last changed
- 2021-05-23 05:27:59
@article{fbcac4d9-bedf-49aa-b796-5bb9c83b8595,
abstract = {{<p>Swan band emission of C<sub>2</sub>. which had been produced and excited (d<sup>3</sup>∏<sub>x</sub>←a <sup>3</sup>∏<sub>u</sub>, Δ v = 0) by focused, tunable, visible laser radiation, was studied in sooting ethylene flames. The C<sub>2</sub>signal from the sooting regions of the flames was found to be proportional to the measured volume fractions of soot, indicating laser-vaporized soot to be the source of the signal, and as such it can be used as a diagnostic tool for point measurements of the volume fraction of soot. C<sub>2</sub>emission was detected for all incident wavelengths between 485 and 540 nm, with a C<sub>2</sub>signal 1–2 orders of magnitude higher when the wavelength was tuned to a C<sub>2</sub> resonance than when tuned to a wavelength between the Swan bands. High concentrations of laser-produced C<sub>2</sub> and emission from C<sub>2</sub>Swan bands can, through interference effects, limit the applicability of laser diagnostic techniques to sooting flames.</p>}},
author = {{Bengtsson, Per Erik and Aldén, Marcus}},
issn = {{0010-2202}},
keywords = {{C2 Interference; Laser Diagnostics; Soot Vaporization; Sooting Flames}},
language = {{eng}},
month = {{06}},
number = {{4-6}},
pages = {{307--318}},
publisher = {{Taylor & Francis}},
series = {{Combustion Science and Technology}},
title = {{C<sub>2</sub> Production and Excitation in Sooting Flames using Visible Laser Radiation : Implications for Diagnostics in Sooting Flames}},
url = {{http://dx.doi.org/10.1080/00102209108951733}},
doi = {{10.1080/00102209108951733}},
volume = {{77}},
year = {{1991}},
}