Field Modeling: Effects of Flat Beamed Ceilings on Detector and Sprinkler Response. International Fire Detection Research Project. Technical Report. Year 1.
Field Modeling: Effects of Flat Beamed Ceilings on
Detector and Sprinkler Response. International Fire
Detection Research Project. Technical Report. Year 1.
Forney, G. P.; Bukowski, R. W.; Davis, W. D.
Technical Report; Year 1; 59 p. October 1993.
Sponsor:National Fire Protection Research Foundation, Quincy, MA
Available from: National Fire Protection Research
Foundation (NFPRF), 1 Batterymarch Park, Quincy, MA
fire detection; field models; ceilings; detector
response; sprinkler response; equations; turbulence;
heat transfer; case histories; data analysis
This report documents the work performed during the
first year of the International Fire Detection Research
Project sponsored by the National Fire Protection
Research Foundation (NFPRF). The first task was to
confirm that fire sensor response can be evaluated using
computational data obtained from numerical simulations.
A field model was verified for this application by
showing that its temperature predictions match
experimental results obtained earlier by Heskestad and
Delichatsios. The second task consisted of performing a
parameter study to show the effect of sensor response
under beamed ceilings for various geometries and fire
growth rates. One question that is addressed is under
what conditions can sensors be located on beams rather
than in beam pockets. Time to sensor activation contour
plots are presented that address this question. Twenty
cases were run for various fire growth rates, beam
depths, beam spacings and ceiling heights. These data
are summarized and recommendations are made on placing
sensors in rooms with beamed ceilings.