Citation

Marshall NR. Fire Safety J. 1986; 10(1): 37-46.

Copyright

(Copyright © 1986, Elsevier Publishing)

DOI

unavailable

PMID

unavailable

Abstract

This paper describes a detailed study into the movement of hot smoky gases in open shafts.The air supply to the fire was isolated from the air flowing into the shaft to enable its flow rate to be measured. Hot gases flowing out of the shaft were also monitored to enable the amount of air entrainment within the shaft to be determined.A single-sided, two-dimensional line-plume theory was developed from earlier work to predict the quantity of air entrained in the shaft. A simpler empirical relationship has also been produced and is suitable for incorporation into computer programs for predicting smoke movement in buildings.