Study of soot formation in premixed propane/oxygen flames by in-situ optical techniques and sampling probes

Conference · Wed Dec 31 23:00:00 EST 1980 · Symp. (Int.) Combust., (Proc.); (United States)

OSTI ID:5393902

Prado, G; Jagoda, J; Neoh, K; Lakaye, J

Formation of soot in premixed laminar methane and propane-oxygen flames has been studied as a function of reaction time, fuel equivalence ratio and temperature. Probe and laser-light scattering and absorption techniques were used in a complementary fashion. Measurements included soot volume fraction, individual spherical particle and agglomerate mean diameter and number density. Comparisons of probe measurements with results computed from the optical technique indicate that the soot refractive indices proposed by Dalzell (m.1.57 - 0.56i) and Janzen (m.2-li) provide accurate results. Two regimes of soot particle growth have been identified. For soot volume fraction smaller than about 10/sup -7/, the particle growth is by coalescent coagulation, as originally proposed simultaneously with some surface growth. 24 refs.

• Research Organization: MIT, Cambridge, MA
• OSTI ID: 5393902
• Report Number(s): CONF-800809-
• Journal Information: Symp. (Int.) Combust., (Proc.); (United States), Journal Name: Symp. (Int.) Combust., (Proc.); (United States); ISSN SYMCA
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
025000* -- Petroleum-- Combustion
090110 -- Hydrocarbon Fuels-- Properties-- (1979-1989)
10 SYNTHETIC FUELS
ALKANES
CHEMICAL REACTION KINETICS
CHEMICAL REACTION YIELD
COMBUSTION KINETICS
COMBUSTION PRODUCTS
ELEMENTS
FLAMES
HYDROCARBONS
KINETICS
NONMETALS
ORGANIC COMPOUNDS
OXYGEN
PROPANE
REACTION KINETICS
SAMPLING
SOOT
YIELDS