Application of Thermodynamic and Detailed Chemical Kinetic Modeling to Understanding Combustion Product Generation in Enclosure Fires.
Application of Thermodynamic and Detailed Chemical
Kinetic Modeling to Understanding Combustion Product
Generation in Enclosure Fires.
Pitts, W. M.
Fire Safety Journal, Vol. 23, 271-303, 1994.
enclosures; thermodynamics; reaction kinetics;
combustion products; experiments; global equivalence
Experiments in idealized two-layer fire environments
have demonstrated that concentrations of carbon monoxide
and other gaseous combustion products can be correlated
in terms of the global eqivalence ratio. In this paper
the results of detailed chemical kinetic modeling and
equilibrium calculations are used to gain insight into
the chemical stability of the gases observed within the
upper layers of such fires. It is demonstrated that the
production of upper-layer gases kinetically controlled
and that for rich conditions concentrations of the
upper-layer gas components are far from those expected
for thermodynamic equilibrium at the layer temperatures.
Criteria are provided for determining whether or not the
correlations can be employed to predict the generation
of combustion products in enclosure fires.