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Measurement of temperature profiles in flames by emission-absorption spectroscopyAn investigation was conducted to explore the use of infrared and ultraviolet emission-absorption spectroscopy for determination of temperature profiles in flames. Spectral radiances and absorptances were measured in the 2.7-micron H2O band and the 3064-A OH band in H2/O2 flames for several temperature profiles which were directly measured by a sodium line-reversal technique. The temperature profiles, determined by inversion of the infrared and ultraviolet spectra, showed an average disagreement with line-reversal measurements of 50 K for the infrared and 200 K for the ultraviolet at a temperature of 2600 K. The reasons for these discrepancies are discussed in some detail.
Document ID
19720012307
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Simmons, F. S. (Michigan Univ. Ann Arbor, MI, United States)
Arnold, C. B. (Michigan Univ. Ann Arbor, MI, United States)
Lindquist, G. H. (Michigan Univ. Ann Arbor, MI, United States)
Date Acquired
September 2, 2013
Publication Date
February 1, 1972
Subject Category
Thermodynamics And Combustion
Report/Patent Number
WRL-30410-19-F
NASA-CR-120894
Report Number: WRL-30410-19-F
Report Number: NASA-CR-120894
Accession Number
72N19957
Funding Number(s)
CONTRACT_GRANT: NAS3-13037
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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