Tomographic Analysis of Line-of-Sight Infrared Spectra of Low-Pressure Flames

Line-of-sight Fourier transform infrared absorption spectra through a 17-torr methane/nitrous oxide flame have been tomographically analyzed using Abel's equations. Relative absorbances for N20, CH4, CO2, NO, and CO have been mapped for various 'slices' of the flame at different heigh...

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Bibliographic Details
Main Authors: McNesby, Kevin L, Fifer, Robert A
Format: Report
Language:English
Subjects:
ABEL'S EQUATION
ABSORPTION SPECTRA
Atomic and Molecular Physics and Spectroscopy
CARBON DIOXIDE
COMBUSTION
Combustion and Ignition
FLAMES
FOURIER TRANSFORM
INFRARED SPECTROSCOPY
LINE OF SIGHT
LOW PRESSURE
LUMINANCE
METHANE
NITROGEN OXIDES
NITROUS OXIDE
Organic Chemistry
PE61102A
RADIOGRAPHY
REGIONS
SLICES
SPECTROSCOPY
TOMOGRAPHY
VISION
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Summary:Line-of-sight Fourier transform infrared absorption spectra through a 17-torr methane/nitrous oxide flame have been tomographically analyzed using Abel's equations. Relative absorbances for N20, CH4, CO2, NO, and CO have been mapped for various 'slices' of the flame at different heights in the flame. Results indicate that the region of maximum NO and CO formation occurs prior to the luminous region of the flame. The technique is shown to be useful in obtaining data from systems for which line of sight data may be unusable... Tomography, Infrared spectroscopy, Low-pressure flames.