Mid-Infrared Polarization Spectroscopy Measurements of Species Concentrations and Temperature in a Low-Pressure Flame
(2019) In Applied Spectroscopy 73(6). p.653-664- Abstract
- Quantitative measurements of CH4 mole fractions at different HAB in the flame were realized by a calibration measurement in a low pressure gas flow of N2 with a small admixture of known amount of CH4. A comprehensive study of the collision effects on the IRPS signal was performed in order to quantify the flame measurement. The concentration and temperature measurements were found to agree reasonably well with simulations using Chemkin. These measurements We demonstrate quantitative measurements of CH4 mole fractions in a low pressure fuel-rich premixed dimethyl ether/oxygen/argon flat flame (Φ =1.87, 37 mbar) using mid-infrared polarization spectroscopy (IRPS). Non-intrusive in situ detection of CH4, C2H2 and C2H6 in the flame was realized... (More)
- Quantitative measurements of CH4 mole fractions at different HAB in the flame were realized by a calibration measurement in a low pressure gas flow of N2 with a small admixture of known amount of CH4. A comprehensive study of the collision effects on the IRPS signal was performed in order to quantify the flame measurement. The concentration and temperature measurements were found to agree reasonably well with simulations using Chemkin. These measurements We demonstrate quantitative measurements of CH4 mole fractions in a low pressure fuel-rich premixed dimethyl ether/oxygen/argon flat flame (Φ =1.87, 37 mbar) using mid-infrared polarization spectroscopy (IRPS). Non-intrusive in situ detection of CH4, C2H2 and C2H6 in the flame was realized by probing the fundamental asymmetric C-H stretching vibration bands in the respective molecules in the spectral range 2970-3340 cm-1. The flame was stabilized on a McKenna-type porous plug burner hosted in a low pressure chamber. The temperature at different heights above the burner (HAB) was measured from the line ratio of temperature sensitive H2O spectral lines recorded using IRPS. prove the potential of IRPS as a sensitive, non-intrusive, in situ technique in low pressure flames. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/35297f96-1dc9-42f2-86dd-0fac3ac2255a
- author
- Sahlberg, Anna-Lena LU ; Hot, Dina LU ; Lyngbye Pedersen, Rasmus LU ; Zhou, Jianfeng LU ; Aldén, Marcus LU and Li, Zhongshan LU
- organization
- publishing date
- 2019-03-27
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Applied Spectroscopy
- volume
- 73
- issue
- 6
- pages
- 653 - 664
- publisher
- Society for Applied Spectroscopy
- external identifiers
-
- scopus:85063579683
- pmid:30556400
- ISSN
- 1943-3530
- DOI
- 10.1177/0003702818823239
- language
- English
- LU publication?
- yes
- id
- 35297f96-1dc9-42f2-86dd-0fac3ac2255a
- date added to LUP
- 2019-02-27 10:18:51
- date last changed
- 2022-06-03 16:29:03
@article{35297f96-1dc9-42f2-86dd-0fac3ac2255a, abstract = {{Quantitative measurements of CH4 mole fractions at different HAB in the flame were realized by a calibration measurement in a low pressure gas flow of N2 with a small admixture of known amount of CH4. A comprehensive study of the collision effects on the IRPS signal was performed in order to quantify the flame measurement. The concentration and temperature measurements were found to agree reasonably well with simulations using Chemkin. These measurements We demonstrate quantitative measurements of CH4 mole fractions in a low pressure fuel-rich premixed dimethyl ether/oxygen/argon flat flame (Φ =1.87, 37 mbar) using mid-infrared polarization spectroscopy (IRPS). Non-intrusive in situ detection of CH4, C2H2 and C2H6 in the flame was realized by probing the fundamental asymmetric C-H stretching vibration bands in the respective molecules in the spectral range 2970-3340 cm-1. The flame was stabilized on a McKenna-type porous plug burner hosted in a low pressure chamber. The temperature at different heights above the burner (HAB) was measured from the line ratio of temperature sensitive H2O spectral lines recorded using IRPS. prove the potential of IRPS as a sensitive, non-intrusive, in situ technique in low pressure flames.}}, author = {{Sahlberg, Anna-Lena and Hot, Dina and Lyngbye Pedersen, Rasmus and Zhou, Jianfeng and Aldén, Marcus and Li, Zhongshan}}, issn = {{1943-3530}}, language = {{eng}}, month = {{03}}, number = {{6}}, pages = {{653--664}}, publisher = {{Society for Applied Spectroscopy}}, series = {{Applied Spectroscopy}}, title = {{Mid-Infrared Polarization Spectroscopy Measurements of Species Concentrations and Temperature in a Low-Pressure Flame}}, url = {{https://lup.lub.lu.se/search/files/119484700/Sahlberg_Appl_Spec_73_2019.pdf}}, doi = {{10.1177/0003702818823239}}, volume = {{73}}, year = {{2019}}, }