Actions for INTERPRETATION OF RAYLEIGH SCATTERING IN A FLAME [electronic resource].

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INTERPRETATION OF RAYLEIGH SCATTERING IN A FLAME [electronic resource].

Published
Berkeley, Calif. : Lawrence Berkeley National Laboratory. Environmental Energy Technologies Division, 1980.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
22 pages : digital, PDF file
Additional Creators
Lawrence Berkeley National Laboratory, Lawrence Berkeley National Laboratory. Environmental Energy Technologies Division, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
Rayleigh scattering has become an accepted technique for the determination of total number density during the combustion process. The interpretation of the ratio of total Rayleigh scattering signal as a ratio of densities or temperatures is hampered by the changing composition and mean molecular weight through a flame. Typical values of correction factors as a function of degree of reaction, fuel, and equivalence ratio are calculated for an idealized one-dimensional flame front. The fuels considered are H{₂, CH₄, C₂H₄, C₂H₆, and C₃H₈. Errors of up to 30% can occur in the interpretation of the Rayleigh scattering as gas density for the heavier hydrocarbon fuels due, primarily, to the presence of CO as an intermediate combustion product. Conversely, using H₂ as a fuel will result in a maximum error of 3%, which is within the expected experimental accuracy of a typical Rayleigh scatterinq system. The interpretation of Rayleigh scattering as temperature was found to have larger errors than the interpretation as density. Nevertheless, when corrections are applied for changes in gas composition, Rayleigh scattering provides an excellent measure of total gas density and temperature in flames.
Report Numbers
E 1.99:lbl-10655
lbl-10655
Subject(s)
Note
Published through SciTech Connect.
04/01/1980.
"lbl-10655"
Spring 1980 Meeting of the Western States Section/Combustion Institute, Irvine, CA, April 21-22, 1980.
Schefer, R.W.; Chan, M.; Namer, I.
Funding Information
DE-AC02-05CH11231
View MARC record | catkey: 14394325