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Quantitative measurement of hydroxyl radical (OH) concentration in premixed flat flame by combining laser-induced fluorescence and direct absorption spectroscopy

Chen, Shuang; Su, Tie; Li, Zhongshan LU ; Bai, Han Chen; Yan, Bo and Yang, Fu Rong (2016) In Chinese Physics C 25(10).
Abstract

An accurate and reasonable technique combining direct absorption spectroscopy and laser-induced fluorescence (LIF) methods is developed to quantitatively measure the concentrations of hydroxyl in CH4/air flat laminar flame. In our approach, particular attention is paid to the linear laser-induced fluorescence and absorption processes, and experimental details as well. Through measuring the temperature, LIF signal distribution and integrated absorption, spatially absolute OH concentrations profiles are successfully resolved. These experimental results are then compared with the numerical simulation. It is proved that the good quality of the results implies that this method is suitable for calibrating the OH-PLIF measurement in... (More)

An accurate and reasonable technique combining direct absorption spectroscopy and laser-induced fluorescence (LIF) methods is developed to quantitatively measure the concentrations of hydroxyl in CH4/air flat laminar flame. In our approach, particular attention is paid to the linear laser-induced fluorescence and absorption processes, and experimental details as well. Through measuring the temperature, LIF signal distribution and integrated absorption, spatially absolute OH concentrations profiles are successfully resolved. These experimental results are then compared with the numerical simulation. It is proved that the good quality of the results implies that this method is suitable for calibrating the OH-PLIF measurement in a practical combustor.

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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
direct absorption spectroscopy, hydroxyl radical (OH), laser-induced fluorescence (LIF), quantitative measurement
in
Chinese Physics C
volume
25
issue
10
publisher
Chinese Physical Soc
external identifiers
  • scopus:84989941103
  • wos:000384227700012
ISSN
1674-1056
DOI
10.1088/1674-1056/25/10/100701
language
English
LU publication?
yes
id
b8037ddb-cdf0-4966-97d8-3b773234ec97
date added to LUP
2016-10-25 13:43:16
date last changed
2017-06-18 04:59:20
@article{b8037ddb-cdf0-4966-97d8-3b773234ec97,
  abstract     = {<p>An accurate and reasonable technique combining direct absorption spectroscopy and laser-induced fluorescence (LIF) methods is developed to quantitatively measure the concentrations of hydroxyl in CH<sub>4</sub>/air flat laminar flame. In our approach, particular attention is paid to the linear laser-induced fluorescence and absorption processes, and experimental details as well. Through measuring the temperature, LIF signal distribution and integrated absorption, spatially absolute OH concentrations profiles are successfully resolved. These experimental results are then compared with the numerical simulation. It is proved that the good quality of the results implies that this method is suitable for calibrating the OH-PLIF measurement in a practical combustor.</p>},
  articleno    = {100701},
  author       = {Chen, Shuang and Su, Tie and Li, Zhongshan and Bai, Han Chen and Yan, Bo and Yang, Fu Rong},
  issn         = {1674-1056},
  keyword      = {direct absorption spectroscopy,hydroxyl radical (OH),laser-induced fluorescence (LIF),quantitative measurement},
  language     = {eng},
  month        = {10},
  number       = {10},
  publisher    = {Chinese Physical Soc},
  series       = {Chinese Physics C},
  title        = {Quantitative measurement of hydroxyl radical (OH) concentration in premixed flat flame by combining laser-induced fluorescence and direct absorption spectroscopy},
  url          = {http://dx.doi.org/10.1088/1674-1056/25/10/100701},
  volume       = {25},
  year         = {2016},
}