Comparison of Full Scale Fire Tests and a Computer Fire Model of Several Smoke Ejection Experiments.
Comparison of Full Scale Fire Tests and a Computer Fire
Model of Several Smoke Ejection Experiments.
Braun, E.; Lowe, D. L.; Jones, W. W.; Tatem, P.; Bailey,
J.; Carey, R.
NISTIR 4961; 43 p. November 1992.
Sponsor:Naval Research Laboratory, Washington, DC
Available from: National Technical Information Service
Order number: PB93-139087
compartment fires; fire growth; mathematical models;
numerical models; room fires; smoke; toxicity
Data were obtained from four large scale shipboard fire
tests. The test series was designed to evaluate the
efficacy of a smoke ejection system for the removal of
smoke and heat from compartments around the compartment
of fire origin. Using diesel oil and polyethylene beads
as fuel, tests were conducted at 0.5 MW and 1.0 MW. The
data obtained from these tests were evaluated in terms
of the reduction of heat and smoke in adjacent
passageways. These results were compared to numerical
simulations of the shipboard environment. The test
results showed that the atmospheric conditions in
compartments/passageways adjacent to the compartment of
fire origin could be made survivable by isolating the
fire compartment and ventilating adjacent spaces. It
was found that, under the ventilation conditions of
these tests, effective reduction in smoke and heat from
peak values to ambient values took 350 to 400 s,
depending on the compartment's proximity to the door of
the compartment of fire origin. Comparisons with the
numerical simulation showed that we can predict the
environment which develops with reasonable confidence.