Accession Number:

ADA263185

Title:

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

Descriptive Note:

Final rept. May-Oct 1992

Corporate Author:

ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD

Personal Author(s):

• McNesby, Kevin L.
• Fifer, Robert A.

Report Date:

1993-04-01

Pagination or Media Count:

33.0

Abstract:

Line-of-sight Fourier transform infrared absorption spectra through a 17-torr methanenitrous oxide flame have been tomographically analyzed using Abels 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.

Descriptors:

• *INFRARED SPECTROSCOPY
• *FLAMES
• LINE OF SIGHT
• SPECTROSCOPY
• LOW PRESSURE
• METHANE
• NITROGEN OXIDES
• RADIOGRAPHY
• NITROUS OXIDE
• LUMINANCE
• CARBON DIOXIDE
• ABSORPTION SPECTRA
• REGIONS
• COMBUSTION
• VISION
• TOMOGRAPHY

Subject Categories:

• Organic Chemistry
• Atomic and Molecular Physics and Spectroscopy
• Combustion and Ignition

Distribution Statement:

APPROVED FOR PUBLIC RELEASE