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Rotational cars thermometry in sooting flames

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Author

Summary, in English

Coherent anti-Stokes Raman scattering of pure rotational transitions, rotational CARS, is demonstrated as an efficient method for temperature determination in sooting flames. The dual broadband CARS approach was used to measure temperature profiles in premixed, sooting ethylene flames at atmospheric pressure by probing the nitrogen gas. The recorded spectra were of equally high quality in non-sooting and sooting flames with volume fractions of soot of up to 7 x 10 7 cm3 soot/cm3The advantages of rotational CARS in comparison with several other techniques for the measurement of temperatures in sooting flames, and the general applicability of the technique to different combustion conditions, are discussed. Potential limitations in the application of rotational CARS to sooting flames that are more heavily sooting than the ones investigated in this study, are outlined.

Publishing year

1992-01-01

Language

English

Pages

129-140

Publication/Series

Combustion Science and Technology

Volume

81

Issue

1-3

Document type

Journal article

Publisher

Taylor & Francis

Keywords

  • Laser diagnostics
  • rotational CARS
  • sooting flames
  • temperature measurements

Status

Published

Research group

  • Lund University, Lund Institute of Technology, Lund, Sweden

ISBN/ISSN/Other

  • ISSN: 0010-2202