Algorithm for Calculating the Plume Center Line Temperature and Ceiling Jet Temperature in the Presence of a Hot Upper Layer.
Algorithm for Calculating the Plume Center Line
Temperature and Ceiling Jet Temperature in the Presence
of a Hot Upper Layer.
(86 K)
Davis, W. D.; Notarianni, K. A.
Fire Research and Engineering, Second (2nd)
International Conference. (ICFRE2). Proceedings.
ABSTRACTS ONLY. National Institute of Standards and
Technology and Society of Fire Protection Engineers.
August 10-15, 1997, Gaithersburg, MD, Slaughter, K. C.,
Editor(s), 113-113 pp, 1997.
Keywords:
fire research; fire protection engineering; temperature;
ceiling jets; pool fires; zone models; fire plumes;
ceiling jets; sprinkler activation
Abstract:
[ABSTRACT ONLY]
The analysis of recent experiments (NIST TN 1423) using
JP-5 and JP-8 pool fires performed in 15 m and 22 m high
hangars suggest that plume center line temperature
correlations found in the computer fire model FPETool
(NISTIR 5486-1) under predict the ceiling temperature
for large fires. The analysis was based on the results
of thirty-three fire tests which had heat release rates
ranging from 100 kW to 33 MW and ambient temperatures
ranging from 8 deg C to 31 deg C. The ceiling jet
correlation also requries modification since a
comparison of predicted sprinkler activation using
FPETool to measured sprinkler activation met with only
limited success. The purpose of this paper is to
present a new plume algorithm for the predicted
sprinkler activation using FPETool to measured spirnkler
activation met with only limited success.
Building and Fire Research Laboratory
National Institute of Standards and Technology
Gaithersburg, MD 20899