Marginally Flammable Materials: Burning Velocity of Trans-Dichloroethylene.
Marginally Flammable Materials: Burning Velocity of
Trans-Dichloroethylene.
(126 K)
Linteris, G. T.; Babushok, V. I.
Scale Modeling 3rd International Symposium.
Proceedings. ISSM3-C8. September 10-13, 2000, Nagoya,
Japan, 1-8 pp, 2000.
Keywords:
flammable materials; burning velocity; hydrocarbons;
chlorinated hydrocarbons; dichloroethylene; flame speed
Abstract:
The overpressure dynamics and explosion hazard of
commodity materials under full-scale conditions are
often assessed through laboratory measurements of their
laminar burning velocity. We present the first
measurements of the flame speed of
trans-1,2-dicholorethylene (TDCE). Data are presented
for a fuel stream consisting of TDCE/methane blends (in
which the TDCE mole fraction is up to 0.9) for
combustion with air at a fuel-air equivalence ratio
{phi} of 1.0, 1.1 and 1.2. Data are also presented for
stoichiometric flames of pure TDCE with the oxidizer
stream having a range of oxygen mole fraction from 0.27
to 0.365, and at two values of the oxidizer oxygen mole
fraction (0.32 and 0.365) over a range of equivalence
ratio (0.65 <= {phi} <= 1.2). Extrapolations of the
results with TDCE/methane blends and with higher oxygen
mole fraction to the conditions of flames of pure TDCE
with air at {phi}=1.0 indicate a laminar burning
velocity of (10.7+1.2) cm/s. In general, the results
indicate that the TDCE burning velocity is about one
fourth that of methane. For TDCE, the maximum burning
velocity occurs for slightly fuel lean conditions.
Numerical modeling of the burning velocity yields values
about a factor of two lower than the experiments,
suggesting that improvements in the kinetic description
are required.
Building and Fire Research Laboratory
National Institute of Standards and Technology
Gaithersburg, MD 20899