Applied Physics B

, Volume 50, Issue 6, pp 519–525

The application of CARS for temperature measurements in high pressure combustion systems

  • M. Woyde
  • W. Stricker
Article

DOI: 10.1007/BF00408778

Cite this article as:
Woyde, M. & Stricker, W. Appl. Phys. B (1990) 50: 519. doi:10.1007/BF00408778

Abstract

The determination of accurate temperatures from CARS N2Q-branch spectra in premixed flames is discussed for pressures up to 40 bar. The influence of collisional line narrowing in the CARS spectra is modelled by a MEG fitting law. It takes into account collisions of N2 with CO2 and H2O. The analysis of the CARS data showed that the non-resonant background has an increasing influence on temperature with increasing pressure. Little influence on the quality of the fit between theory and experiment was found. Since there is a danger of residual systematic temperature deviations, which cannot be identified from the quality of the fit, spontaneous rotational Raman scattering is employed as an independent measuring technique.

PACS

33.20.Fb 82.40.Py 

Copyright information

© Springer-Verlag 1990

Authors and Affiliations

  • M. Woyde
    • 1
  • W. Stricker
    • 1
  1. 1.DLR-Institut für Physikalische Chemie der VerbrennungStuttgart 80Fed. Rep. Germany