Rotational CARS thermometry at high temperature (1800 K) and high pressure (0.1-1.55 MPa)
(2007) In Journal of Raman Spectroscopy 38(8). p.963-968- Abstract
- Dual-broadband rotational CARS (DB-RCARS) thermometry has been investigated at high temperature and high pressure. Single-shot measurements were performed at 1800 K, in air and nitrogen at pressures up to 1.55 MPa and in oxygen at pressures up to 0.5 MPa. For all conditions, the resonant signal contribution to the spectra clearly dominated over the non-resonant one, implying the high potential for DB-RCARS for temperature and concentration measurements also at the high temperatures and pressures used in the present investigation. The relative standard deviation was generally similar to 2% for single-shot data at pressures from 0.5 to 1.55 MPa. At the investigated temperature, 1800 K, rotational lines from thermally excited vibrational... (More)
- Dual-broadband rotational CARS (DB-RCARS) thermometry has been investigated at high temperature and high pressure. Single-shot measurements were performed at 1800 K, in air and nitrogen at pressures up to 1.55 MPa and in oxygen at pressures up to 0.5 MPa. For all conditions, the resonant signal contribution to the spectra clearly dominated over the non-resonant one, implying the high potential for DB-RCARS for temperature and concentration measurements also at the high temperatures and pressures used in the present investigation. The relative standard deviation was generally similar to 2% for single-shot data at pressures from 0.5 to 1.55 MPa. At the investigated temperature, 1800 K, rotational lines from thermally excited vibrational states could be observed in the highly resolved experimental spectra. Using a previously developed weighting procedure applied to these lines, it was demonstrated that the temperature standard deviation could be lowered with as much as 30%. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/688904
- author
- Vestin, Fredrik
LU
; Afzelius, Mikael
LU
; Berger, H
; Chaussard, F
; Saint-Loup, R
and Bengtsson, Per-Erik
LU
- organization
- publishing date
- 2007
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- gas-phase thermometry, rotational CARS, combustion diagnostics
- in
- Journal of Raman Spectroscopy
- volume
- 38
- issue
- 8
- pages
- 963 - 968
- publisher
- John Wiley & Sons Inc.
- external identifiers
-
- wos:000249042500003
- scopus:34548172998
- ISSN
- 1097-4555
- DOI
- 10.1002/jrs.1779
- language
- English
- LU publication?
- yes
- id
- a19eac3f-2c90-4e65-8157-792aa8d4fd47 (old id 688904)
- date added to LUP
- 2016-04-01 17:03:51
- date last changed
- 2022-03-15 04:54:31
@article{a19eac3f-2c90-4e65-8157-792aa8d4fd47, abstract = {{Dual-broadband rotational CARS (DB-RCARS) thermometry has been investigated at high temperature and high pressure. Single-shot measurements were performed at 1800 K, in air and nitrogen at pressures up to 1.55 MPa and in oxygen at pressures up to 0.5 MPa. For all conditions, the resonant signal contribution to the spectra clearly dominated over the non-resonant one, implying the high potential for DB-RCARS for temperature and concentration measurements also at the high temperatures and pressures used in the present investigation. The relative standard deviation was generally similar to 2% for single-shot data at pressures from 0.5 to 1.55 MPa. At the investigated temperature, 1800 K, rotational lines from thermally excited vibrational states could be observed in the highly resolved experimental spectra. Using a previously developed weighting procedure applied to these lines, it was demonstrated that the temperature standard deviation could be lowered with as much as 30%.}}, author = {{Vestin, Fredrik and Afzelius, Mikael and Berger, H and Chaussard, F and Saint-Loup, R and Bengtsson, Per-Erik}}, issn = {{1097-4555}}, keywords = {{gas-phase thermometry; rotational CARS; combustion diagnostics}}, language = {{eng}}, number = {{8}}, pages = {{963--968}}, publisher = {{John Wiley & Sons Inc.}}, series = {{Journal of Raman Spectroscopy}}, title = {{Rotational CARS thermometry at high temperature (1800 K) and high pressure (0.1-1.55 MPa)}}, url = {{http://dx.doi.org/10.1002/jrs.1779}}, doi = {{10.1002/jrs.1779}}, volume = {{38}}, year = {{2007}}, }