Opposed flow diffusion flame extensions

Conference · Thu Jan 01 04:00:00 EST 1981 · Symp. (Int.) Combust., (Proc.); (United States)

OSTI ID:5432636

Kinoshita, C M; Pagni, P J; Beier, R A

The Opposed Flow Diffusion Flame (OFDF) apparatus has been used for estimating the thermochemical properties of materials related to fire safety and for diffusion flame structure studies. The extension of the flame beyond the pyrolyzing fuel surface and the excess pyrolyzate are predicted. Since flame and stagnant plane locations may be sensitive to the usual Le.1 assumption, these additional predictions which are not so sensitive can provide useful estimates of fuel properties. Shvab-Zeldovich variables are used in analysis of steady, laminar, non-radiative, axisymmetric and Cartesian two-dimensional boundary layers. The thin diffusion flame lies within the boundary layer on the oxidant side of the stagnation plane. Much of the behavior of the velocity, enthalpy and species profiles is similar to the analogous free convection flame profiles. 21 refs.

• Research Organization: Univ of Calif, Berkeley
• OSTI ID: 5432636
• Report Number(s): CONF-800809-
• Conference Information: Journal Name: Symp. (Int.) Combust., (Proc.); (United States)
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400800* -- Combustion
Pyrolysis
& High-Temperature Chemistry
42 ENGINEERING
420600 -- Engineering-- Safety Engineering-- (-1987)
CHEMICAL REACTIONS
DECOMPOSITION
DIFFUSION
FIRE HAZARDS
FLAME PROPAGATION
FLUID FLOW
HAZARDS
PYROLYSIS
THERMOCHEMICAL PROCESSES