Concentration measurements of atomic hydrogen in subatmospheric premixed C/sub 2/H/sub 4//O/sub 2//Ar flat flames

Journal Article · Thu Dec 01 04:00:00 EST 1988 · Combust. Flame; (United States)

DOI:https://doi.org/10.1016/0010-2180(88)90070-3· OSTI ID:6616767

Salmon, J T ^[1]; Laurendeau, N M ^[2]

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1. Lawrence Livermore National Lab., Livermore, CA (US)
2. Flame Diagnostics Lab., School of Mechanical Engineering, Purdue Univ., West Lafayette, IN (US)

Absolute number densities of atomic hydrogen have been measured in subatmospheric, premixed C/sub 2/H/sub 4//O/sub 2//Ar flat flames via two-photon excited fluorescence. The fuel-equivalence ratios of the flames were 1.0 and 1.7. The fluorescence measurements are calibrated by partial equilibrium calculations and corrected for quenching effects by assuming a constant average cross-section and using kinetic energy. A sensitivity analysis of the calibration procedure reveals that slightly rich flames appear to be the best candidates for calibrating fluorescence measurements of atomic hydrogen by partial equilibrium.

• OSTI ID: 6616767
• Journal Information: Combust. Flame; (United States), Journal Name: Combust. Flame; (United States) Vol. 74:3; ISSN CBFMA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400800* -- Combustion
Pyrolysis
& High-Temperature Chemistry
ALKANES
ARGON
CALIBRATION
CHEMICAL REACTION KINETICS
COMBUSTION KINETICS
CROSS SECTIONS
DENSITY
DISPERSIONS
ELEMENTS
FLAMES
FLUIDS
FLUORESCENCE
GASES
HYDROCARBONS
HYDROGEN
KINETICS
LUMINESCENCE
MEASURING METHODS
METHANE
MIXTURES
NONMETALS
ORGANIC COMPOUNDS
OXYGEN
PHYSICAL PROPERTIES
QUENCHING
RARE GASES
REACTION KINETICS
SENSITIVITY ANALYSIS