Soot oxidation and agglomeration modeling in a microgravity diffusion flame

Journal Article · Tue Jul 01 00:00:00 EDT 1997 · Combustion and Flame

DOI:https://doi.org/10.1016/S0010-2180(97)00067-9· OSTI ID:543432

Ezekoye, O A; Zhang, Z ^[1]

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1. Univ. of Texas, Austin, TX (United States). Dept. of Mechanical Engineering

The global evolution of a microgravity diffusion flame is detailed. Gas species evolution is computed using a reduced finite rate chemical mechanism. Soot evolution is computed using various combinations of existing soot mechanisms. Radiative transfer is coupled to the soot and gas phase chemistry processes using a P1 spherical harmonics radiation model. The soot agglomeration model was examined to note the dependence of soot growth and oxidation processes on soot surface area predictions. For limiting cases where agglomeration was excluded from the soot evolution model, soot primary particle sizes and number concentrations were calculated, and the number of primary particles per aggregate was inferred. These computations are compared with experimental results for microgravity and nonbuoyant flame conditions.

• OSTI ID: 543432
• Journal Information: Combustion and Flame, Vol. 110, Issue 1-2; Other Information: PBD: Jul 1997
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
02 PETROLEUM
SOOT
OXIDATION
AGGLOMERATION
MATHEMATICAL MODELS
FLAMES
COMBUSTION KINETICS
CHEMICAL REACTION YIELD
RADIANT HEAT TRANSFER
ACETYLENE
HYDROCARBONS