An Experimental Study of Upper Hot Layer Stratification in Full-Scale Multiroom Fire Scenarios

[+] Author and Article Information
L. Y. Cooper, M. Harkleroad, J. Quintiere, W. Rinkinen

Center for Fire Research, National Bureau of Standards, Washington, D.C. 20234

J. Heat Transfer 104(4), 741-749 (Nov 01, 1982) (9 pages) doi:10.1115/1.3245194 History: Received October 07, 1981; Online October 20, 2009


This paper describes an experimental study of the dynamics of smoke filling in realistic, full-scale, multiroom fire scenarios. A major objective of the study was to generate an experimental data base for use in the verification of mathematical fire simulation models. The test space involved 2 or 3 rooms, connected by open doorways. During the course of the study the areas were partitioned to yield four different configurations. One of the rooms was a burn room containing a methane burner which produced either a constant energy release rate of 25, 100, or 225 kW or a time-varying energy release rate which increased linearly with time from zero at ignition to 300 kW in 10 min. An artificial smoke source near the ceiling of the burn room provided a means for visualizing the descent of the hot layer and the dynamics of the smoke filling process in the various spaces. The development of the hot stratified layers in the various spaces was monitored by vertical arrays of thermocouples and photometers. A layer interface was identified and its position as a function of time was determined. An analysis and discussion of these results are presented.

Copyright © 1982 by ASME
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