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Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 48, Iss. 4 — Feb. 1, 2009
  • pp: B57–B64

Two-dimensional Raman mole-fraction and temperature measurements for hydrogen–nitrogen mixture analysis

Andreas Braeuer and Alfred Leipertz  »View Author Affiliations

Applied Optics, Vol. 48, Issue 4, pp. B57-B64 (2009)

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A two-dimensional laser Raman technique was developed and applied to directly probe the population number of selected rotational and vibrational energy levels of hydrogen and nitrogen. Using three cameras simultaneously, temperature and mole fraction images could be detected. Three different combinations of rotational and vibrational Raman signals of hydrogen and nitrogen were analyzed to identify the combination that is most suitable for future mixture analysis in hydrogen internal combustion engines. Here the experiments were conducted in an injection chamber where hot hydrogen was injected into room temperature nitrogen at 1.1 MPa .

© 2008 Optical Society of America

OCIS Codes
(120.1740) Instrumentation, measurement, and metrology : Combustion diagnostics
(120.6780) Instrumentation, measurement, and metrology : Temperature
(290.5860) Scattering : Scattering, Raman
(300.6450) Spectroscopy : Spectroscopy, Raman

Original Manuscript: July 15, 2008
Revised Manuscript: October 14, 2008
Manuscript Accepted: October 14, 2008
Published: November 26, 2008

Andreas Braeuer and Alfred Leipertz, "Two-dimensional Raman mole-fraction and temperature measurements for hydrogen-nitrogen mixture analysis," Appl. Opt. 48, B57-B64 (2009)

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