Laser-induced breakdown flame thermometry
(2012) In Combustion and Flame 159(12). p.3576-3582- Abstract
- The determination of temperature distribution is an essential task when flames are characterized. We propose a new approach for flame thermometry based on laser-induced breakdown spectroscopy (LIBS) utilizing the temperature dependency of the breakdown threshold laser pulse energy. Calibration measurements are carried out in heated gas flows and post-combustion gases. Compositional effects on the breakdown threshold are corrected employing a straightforward procedure. For this purpose, the elemental composition is derived from the LIBS spectra and this information is then used for correcting the measured threshold laser pulse energy. A series of proof-of-concept measurements in a laminar methane/air flame on a Bunsen burner is conducted... (More)
- The determination of temperature distribution is an essential task when flames are characterized. We propose a new approach for flame thermometry based on laser-induced breakdown spectroscopy (LIBS) utilizing the temperature dependency of the breakdown threshold laser pulse energy. Calibration measurements are carried out in heated gas flows and post-combustion gases. Compositional effects on the breakdown threshold are corrected employing a straightforward procedure. For this purpose, the elemental composition is derived from the LIBS spectra and this information is then used for correcting the measured threshold laser pulse energy. A series of proof-of-concept measurements in a laminar methane/air flame on a Bunsen burner is conducted and compared to reference data from coherent anti-Stokes Raman scattering (CARS). The corrected LIBS temperatures show excellent agreement with those obtained by CARS. Therefore, our approach represents a simple and straightforward alternative to traditionally used thermometry methods. (C) 2012 The Combustion Institute. Published by Elsevier Inc. All rights reserved. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/3283373
- author
- Kiefer, Johannes ; Troeger, Johannes W. ; Li, Zhongshan LU ; Seeger, Thomas ; Aldén, Marcus LU and Leipertz, Alfred
- organization
- publishing date
- 2012
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Laser-induced breakdown spectroscopy, Temperature, Composition, Plasma, Laminar flames
- in
- Combustion and Flame
- volume
- 159
- issue
- 12
- pages
- 3576 - 3582
- publisher
- Elsevier
- external identifiers
-
- wos:000310656600012
- scopus:84867912877
- ISSN
- 0010-2180
- DOI
- 10.1016/j.combustflame.2012.08.005
- language
- English
- LU publication?
- yes
- id
- 7c6b3a0b-f36f-44e7-8993-5d06caaaa5fb (old id 3283373)
- date added to LUP
- 2016-04-01 14:43:33
- date last changed
- 2022-04-22 04:57:12
@article{7c6b3a0b-f36f-44e7-8993-5d06caaaa5fb, abstract = {{The determination of temperature distribution is an essential task when flames are characterized. We propose a new approach for flame thermometry based on laser-induced breakdown spectroscopy (LIBS) utilizing the temperature dependency of the breakdown threshold laser pulse energy. Calibration measurements are carried out in heated gas flows and post-combustion gases. Compositional effects on the breakdown threshold are corrected employing a straightforward procedure. For this purpose, the elemental composition is derived from the LIBS spectra and this information is then used for correcting the measured threshold laser pulse energy. A series of proof-of-concept measurements in a laminar methane/air flame on a Bunsen burner is conducted and compared to reference data from coherent anti-Stokes Raman scattering (CARS). The corrected LIBS temperatures show excellent agreement with those obtained by CARS. Therefore, our approach represents a simple and straightforward alternative to traditionally used thermometry methods. (C) 2012 The Combustion Institute. Published by Elsevier Inc. All rights reserved.}}, author = {{Kiefer, Johannes and Troeger, Johannes W. and Li, Zhongshan and Seeger, Thomas and Aldén, Marcus and Leipertz, Alfred}}, issn = {{0010-2180}}, keywords = {{Laser-induced breakdown spectroscopy; Temperature; Composition; Plasma; Laminar flames}}, language = {{eng}}, number = {{12}}, pages = {{3576--3582}}, publisher = {{Elsevier}}, series = {{Combustion and Flame}}, title = {{Laser-induced breakdown flame thermometry}}, url = {{http://dx.doi.org/10.1016/j.combustflame.2012.08.005}}, doi = {{10.1016/j.combustflame.2012.08.005}}, volume = {{159}}, year = {{2012}}, }