Multi-camera/spectrometer design for instantaneous line Rayleigh/Raman/LIPF measurements in methane/air flames

Technical Report · Wed May 01 04:00:00 EDT 1996

OSTI ID:225978

Osborne, R J; Skaggs, P A; Pitz, R W

A combined Rayleigh/Raman/Laser-Induced Predissociative Fluorescence (LIPF) technique is being developed to obtain instantaneous measurements of major species (CH{sub 4}, N{sub 2}, O{sub 2}, H{sub 2}, H{sub 2}O, CO{sub 2}, and CO), temperature, and OH along a line in premixed methane-air flames. The design of the system is presented. A 0.75 meter spectrometer has been modified into a 0.65 meter spectrometer mounted with four cameras for data collection. An Intensified Photodiode Array (IPDA) is used to capture the Rayleigh scattering signal of the KrF excimer laser operating at 248 nm. The Raman scattering lines from H{sub 2} and H{sub 2}O are recorded on an Intensified Charge Coupled Device camera (ICCD), while a backlit liquid nitrogen cooled Charge Coupled Device camera (LN/CCD) captures the remaining Raman lines from CO{sub 2}, O{sub 2}, CO, N{sub 2}, and CH{sub 4}. Another ICCD camera records the OH LIPF signal. A comparison of the accuracies of the cameras is also presented.

• Research Organization: Vanderbilt Univ., Nashville, TN (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: FC21-92MC29061
• OSTI ID: 225978
• Report Number(s): DOE/MC/29061--96/C0685; CONF-960162--4
• Country of Publication: United States
• Language: English

Related Subjects

03 NATURAL GAS
44 INSTRUMENTATION
INCLUDING NUCLEAR AND PARTICLE DETECTORS
AIR POLLUTION ABATEMENT
CARBON DIOXIDE
CARBON MONOXIDE
COMBUSTION KINETICS
DESIGN
FLAMES
FLUORESCENCE SPECTROSCOPY
GAS ANALYSIS
HYDROGEN
HYDROXYL RADICALS
LASER SPECTROSCOPY
METHANE
NITRIC OXIDE
NITROGEN
OPERATION
OXYGEN
RAMAN SPECTROSCOPY
SPECTROMETERS
TEMPERATURE MEASUREMENT
WATER VAPOR