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Thermometry in internal combustion engines via dual-broadband rotational coherent anti-Stokes Raman spectroscopy

Brackmann, Christian LU ; Bood, Joakim LU ; Afzelius, Mikael LU and Bengtsson, Per-Erik LU (2004) In Measurement Science & Technology1991-01-01+01:00 15(3). p.13-25
Abstract
Rotational coherent anti-Stokes Raman spectroscopy (CARS) has since the beginning of the 1980s been developed as a non-intrusive tool for temperature measurements in combustion. Since the introduction of the dual-broadband concept in 1986, the quality of the technique has been much improved, and application to practical combustion situations facilitated. Since the first demonstration of its use in spark-ignition engines in 1993, several measurement campaigns in engines have been accomplished. These campaigns concerned temperature measurements in the unburned gas mixture before combustion as part of a larger project with the aim of improving the knowledge on the phenomenon of engine knock. In this paper, the results of this work are... (More)
Rotational coherent anti-Stokes Raman spectroscopy (CARS) has since the beginning of the 1980s been developed as a non-intrusive tool for temperature measurements in combustion. Since the introduction of the dual-broadband concept in 1986, the quality of the technique has been much improved, and application to practical combustion situations facilitated. Since the first demonstration of its use in spark-ignition engines in 1993, several measurement campaigns in engines have been accomplished. These campaigns concerned temperature measurements in the unburned gas mixture before combustion as part of a larger project with the aim of improving the knowledge on the phenomenon of engine knock. In this paper, the results of this work are reviewed with a focus on the characteristics of the technique and the quality of the evaluated temperatures. Re-evaluations of data using an improved theoretical model are presented and compared with previous results. Moreover, the treatment of large data sets on single shots from spatial regions with conditions varying from unburned to burned gas is discussed. It is demonstrated that dual-broadband rotational CARS probing nitrogen and oxygen has a high potential for thermometry at the conditions in the unburned gas mixture. Merits and limitations of the technique are discussed and the issues treated are, among others, experimental problems, data evaluation, and single-shot temperature accuracy. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
combustion, laser spectroscopy, coherent anti-Stokes Raman spectroscopy, gas-phase thermometry, engines
in
Measurement Science & Technology1991-01-01+01:00
volume
15
issue
3
pages
13 - 25
publisher
IOP Publishing
external identifiers
  • wos:000220274700001
  • scopus:1842535929
ISSN
0957-0233
DOI
10.1088/0957-0233/15/3/R01
language
English
LU publication?
yes
id
71254333-ec1b-4a00-b7fb-005fc0bd25f6 (old id 284807)
date added to LUP
2007-10-17 11:27:18
date last changed
2017-09-24 04:34:51
@article{71254333-ec1b-4a00-b7fb-005fc0bd25f6,
  abstract     = {Rotational coherent anti-Stokes Raman spectroscopy (CARS) has since the beginning of the 1980s been developed as a non-intrusive tool for temperature measurements in combustion. Since the introduction of the dual-broadband concept in 1986, the quality of the technique has been much improved, and application to practical combustion situations facilitated. Since the first demonstration of its use in spark-ignition engines in 1993, several measurement campaigns in engines have been accomplished. These campaigns concerned temperature measurements in the unburned gas mixture before combustion as part of a larger project with the aim of improving the knowledge on the phenomenon of engine knock. In this paper, the results of this work are reviewed with a focus on the characteristics of the technique and the quality of the evaluated temperatures. Re-evaluations of data using an improved theoretical model are presented and compared with previous results. Moreover, the treatment of large data sets on single shots from spatial regions with conditions varying from unburned to burned gas is discussed. It is demonstrated that dual-broadband rotational CARS probing nitrogen and oxygen has a high potential for thermometry at the conditions in the unburned gas mixture. Merits and limitations of the technique are discussed and the issues treated are, among others, experimental problems, data evaluation, and single-shot temperature accuracy.},
  author       = {Brackmann, Christian and Bood, Joakim and Afzelius, Mikael and Bengtsson, Per-Erik},
  issn         = {0957-0233},
  keyword      = {combustion,laser spectroscopy,coherent anti-Stokes Raman spectroscopy,gas-phase thermometry,engines},
  language     = {eng},
  number       = {3},
  pages        = {13--25},
  publisher    = {IOP Publishing},
  series       = {Measurement Science & Technology1991-01-01+01:00},
  title        = {Thermometry in internal combustion engines via dual-broadband rotational coherent anti-Stokes Raman spectroscopy},
  url          = {http://dx.doi.org/10.1088/0957-0233/15/3/R01},
  volume       = {15},
  year         = {2004},
}