Development of a Raman spectroscopy technique to detect alternate transportation fuel hydrocarbon intermediates in complex combustion environments.

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Spontaneous Raman spectra for important hydrocarbon fuels and combustion intermediates were recorded over a range of low-to-moderate flame temperatures using the multiscalar measurement facility located at Sandia/CA. Recorded spectra were extrapolated to higher flame temperatures and then converted into empirical spectral libraries that can readily be incorporated into existing post-processing analysis models that account for crosstalk from overlapping hydrocarbon channel signal. Performance testing of the developed libraries and reduction methods was conducted through an examination of results from well-characterized laminar reference flames, and was found to provide good agreement. The diagnostic development allows for temporally and spatially resolved flame measurements ... continued below

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68 p.

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Ekoto, Isaac W. & Barlow, Robert S. December 1, 2012.

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  • Sandia National Laboratories
    Publisher Info: Sandia National Laboratories (SNL-CA), Livermore, CA (United States)
    Place of Publication: Livermore, California

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Description

Spontaneous Raman spectra for important hydrocarbon fuels and combustion intermediates were recorded over a range of low-to-moderate flame temperatures using the multiscalar measurement facility located at Sandia/CA. Recorded spectra were extrapolated to higher flame temperatures and then converted into empirical spectral libraries that can readily be incorporated into existing post-processing analysis models that account for crosstalk from overlapping hydrocarbon channel signal. Performance testing of the developed libraries and reduction methods was conducted through an examination of results from well-characterized laminar reference flames, and was found to provide good agreement. The diagnostic development allows for temporally and spatially resolved flame measurements of speciated hydrocarbon concentrations whose parent is more chemically complex than methane. Such data are needed to validate increasingly complex flame simulations.

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68 p.

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  • Report No.: SAND2012-10389
  • Grant Number: AC04-94AL85000
  • Office of Scientific & Technical Information Report Number: 1088079
  • Archival Resource Key: ark:/67531/metadc834411

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Office of Scientific & Technical Information Technical Reports

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  • December 1, 2012

Added to The UNT Digital Library

  • May 19, 2016, 9:45 a.m.

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  • Feb. 17, 2017, 4:20 p.m.

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Ekoto, Isaac W. & Barlow, Robert S. Development of a Raman spectroscopy technique to detect alternate transportation fuel hydrocarbon intermediates in complex combustion environments., report, December 1, 2012; Livermore, California. (digital.library.unt.edu/ark:/67531/metadc834411/: accessed October 23, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.