Raman spectroscopy measurements of flame quenching in a duct-type crevice

Conference · Sun Jan 01 04:00:00 EST 1984

OSTI ID:6918770

Fairchild, P W; Fleeter, R D; Fendell, F E

Flame/wall interactions in a duct-type crevice (simulated by two parallel walls) have been investigated by making Raman scattering measurements of the spatial temperature profile for a range of wall separations and flame stoichiometry. Experiments using both cold (isothermal) and hot (adiabatic) walls in an atmospheric pressure premixed propane/air flame show that as the wall separation is reduced opposite quench layers begin to interact. The effect is more severe for the leaner fuel mixtures where the flame speed has been reduced. Results with a hot wall show the reduced quench layer thickness that is associated with the flame front position moving closer to the wall.

• Research Organization: TRW Space and Technology Group, Redondo Beach, CA (USA). Engineering Sciences Lab.
• DOE Contract Number: AC04-78ET13329
• OSTI ID: 6918770
• Report Number(s): CONF-840801-9; ON: DE84009328
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320101* -- Energy Conservation
Consumption
& Utilization-- Residential Buildings-- (-1987)
CHEMICAL REACTION KINETICS
COMBUSTION KINETICS
DUCTS
ENGINES
EXHAUST GASES
FLUIDS
GASEOUS WASTES
GASES
HEAT ENGINES
HYDROCARBONS
INTERNAL COMBUSTION ENGINES
KINETICS
ORGANIC COMPOUNDS
RAMAN EFFECT
RAMAN SPECTRA
REACTION KINETICS
SPARK IGNITION ENGINES
SPECTRA
TEMPERATURE DISTRIBUTION
WALLS
WASTES