Compartment Fire Combustion Dynamics. Annual Report. September 1, 1993-September 1, 1994.
Compartment Fire Combustion Dynamics. Annual Report.
September 1, 1993-September 1, 1994.
(2316 K)
Vandsburger, U.; Lattimer, B. Y.; Roby, R. J.
NIST GCR 95-666; 54 p. December 1994.
Sponsor:
National Institute of Standards and Technology,
Gaithersburg, MD
Available from:
National Technical Information Service
Order number: PB95-217162
Keywords:
compartment fires; combustion gases; carbon monoxide;
ceilings; corridors; fire research; soffits; soot; toxic
gases; wood; fluid mechanics
Abstract:
The overall scope of this research is to investigate the
phenomena that control the generation and oxidation of
compartment fire exhaust gases (particularly carbon
monoxide, CO) which are transported down an adjacent
corridor. Results of the first two years of the project
are summarized. During the past year three hallway
soffit combinations were investigated in order to
characterize the effects of varying the fluid mechanics
on the burnout behavior of combustion gases. The
findings show that the addition of a soffit at the fire
enclosure end of the corridor increased the degree of
burnout, while adding a soffit at the exit of the
corridor decreased the degree of oxidation. Soffits at
both ends yielded an intermediate result. Varying the
size of the opening into the corridor had no effects on
the results. A set of experiments are also summarized
in which fires were burned in an enclosure having a wood
ceiling. This resulted in the generation of very high
concentrations of CO in agreement with the findings of
Pitts et al.
