Applied Physics B

, Volume 76, Issue 3, pp 319–324 | Cite as

Temperature and excitation wavelength dependencies of 3-pentanone absorption and fluorescence for PLIF applications

  • J.D. Koch
  • R.K. Hanson

Abstract.

The temperature and excitation wavelength dependencies of 3-pentanone absorption and fluorescence were studied in support of planar laser-induced fluorescence (PLIF) imaging of temperature and mixture fraction in flows of practical interest. The temperature dependencies (300–875 K) of absorption and fluorescence were measured for gaseous 3-pentanoneat atmospheric pressure in a nitrogen bath gas using 248, 266, and 308 nm excitation. The results indicate that the fluorescence signal per unit mole fraction using 248 nm excitation is highly temperature-sensitive below 600 K, while the signal from 308 nm excitation is not temperature sensitive below 500 K. For quantitative measurements over a broad range of temperatures, one must choose excitation schemes carefully to balance the trade-off between measurement sensitivity and the amount of signal at the expected conditions. As an example of such a choice and to show the capabilities of ketone PLIF techniques, we include temperature and mixture fraction images of a 300–650 K heated air jet using near-simultaneous 308 and 266 nm excitation.

PACS: 33.20.Lg; 33.50.-j 

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Copyright information

© Springer-Verlag 2003

Authors and Affiliations

  • J.D. Koch
    • 1
  • R.K. Hanson
    • 1
  1. 1.Mechanical Engineering Department, Stanford University, Stanford, CA 94305-3032, USAUS

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