CARS thermometry in laminar sooting ethylene-air co-flow diffusion flames with nitrogen dilution
Abstract
Temperature measurements were performed in nonpremixed, sooting jet flames using coherent anti-Stokes Raman scattering (CARS). The jet fluid was ethylene diluted with different concentrations of nitrogen, and the co-flow fluid was dry air. The flames were stabilized on a Yale burner, also known as Smooke/Long burner, and the operating conditions were chosen to match previous experiments on the burner by the Yale group and other research groups. The selected flames have also been identified as target flames by the International Sooting Flame Workshop. CARS measurements of temperature provide insight into the structure of these sooting flames and serve as benchmark data for comparison with computations. A dual-pump vibrational CARS system was used here in order to avoid soot interferences. We were able to obtain high quality CARS spectra in all regions of the flame including the highly sooting regions and near the exit of the fuel nozzle, where the nonresonant modulation of the nitrogen CARS spectrum is strong due to the high ethylene concentrations. The measurements are compared with CFD results in literature and discussed in context of measured soot volume fraction, also, from literature.
- Authors:
-
- Purdue Univ., West Lafayette, IN (United States)
- Univ. of Sydney, NSW (Australia)
- Publication Date:
- Research Org.:
- Purdue Univ., West Lafayette, IN (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1800065
- Alternate Identifier(s):
- OSTI ID: 1532594
- Grant/Contract Number:
- FG02-03ER15391
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Combustion and Flame
- Additional Journal Information:
- Journal Volume: 208; Journal ID: ISSN 0010-2180
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING; CARS thermometry; laminar sooting flames
Citation Formats
Satija, Aman, Chang, Ziqiao, Lowe, Albyn, Thomas, Levi M., Masri, Assaad R., and Lucht, Robert P. CARS thermometry in laminar sooting ethylene-air co-flow diffusion flames with nitrogen dilution. United States: N. p., 2019.
Web. doi:10.1016/j.combustflame.2019.06.025.
Satija, Aman, Chang, Ziqiao, Lowe, Albyn, Thomas, Levi M., Masri, Assaad R., & Lucht, Robert P. CARS thermometry in laminar sooting ethylene-air co-flow diffusion flames with nitrogen dilution. United States. https://doi.org/10.1016/j.combustflame.2019.06.025
Satija, Aman, Chang, Ziqiao, Lowe, Albyn, Thomas, Levi M., Masri, Assaad R., and Lucht, Robert P. Tue .
"CARS thermometry in laminar sooting ethylene-air co-flow diffusion flames with nitrogen dilution". United States. https://doi.org/10.1016/j.combustflame.2019.06.025. https://www.osti.gov/servlets/purl/1800065.
@article{osti_1800065,
title = {CARS thermometry in laminar sooting ethylene-air co-flow diffusion flames with nitrogen dilution},
author = {Satija, Aman and Chang, Ziqiao and Lowe, Albyn and Thomas, Levi M. and Masri, Assaad R. and Lucht, Robert P.},
abstractNote = {Temperature measurements were performed in nonpremixed, sooting jet flames using coherent anti-Stokes Raman scattering (CARS). The jet fluid was ethylene diluted with different concentrations of nitrogen, and the co-flow fluid was dry air. The flames were stabilized on a Yale burner, also known as Smooke/Long burner, and the operating conditions were chosen to match previous experiments on the burner by the Yale group and other research groups. The selected flames have also been identified as target flames by the International Sooting Flame Workshop. CARS measurements of temperature provide insight into the structure of these sooting flames and serve as benchmark data for comparison with computations. A dual-pump vibrational CARS system was used here in order to avoid soot interferences. We were able to obtain high quality CARS spectra in all regions of the flame including the highly sooting regions and near the exit of the fuel nozzle, where the nonresonant modulation of the nitrogen CARS spectrum is strong due to the high ethylene concentrations. The measurements are compared with CFD results in literature and discussed in context of measured soot volume fraction, also, from literature.},
doi = {10.1016/j.combustflame.2019.06.025},
journal = {Combustion and Flame},
number = ,
volume = 208,
place = {United States},
year = {Tue Jul 09 00:00:00 EDT 2019},
month = {Tue Jul 09 00:00:00 EDT 2019}
}
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