"Postflashover fires": an overview of the research at the National Research Council of Canada (NRCC) 1970-1985

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DOI	Resolve DOI: https://doi.org/10.4224/20377605
Author	Search for: Harmathy, T. Z.¹
Affiliation	National Research Council of Canada
Format	Text, Technical Report
Edition	reprint
Physical description	28 p.
Subject	Fire; flash over; normalized heat load; postflashover fires; pyrolysis; cellulosic fuels; stoichiometry; char; reactor model; burning regimes; modeling; normalized heat load; thermal absorptivity
Abstract	The NRCC model of fully developed compartment fires is discussed. The model offers an explanation for the findings that "ventilation control" is related to the pyrolysis mechanism and is not a result of scarcity of air in the fire compartment, and that thermal feedback is of secondary importance in "burning" (pyrolysis) of cellulosic fuels. The normalized heat load is a scalar quantity that depends on the total heat absorbed by the compartment boundaries during the fire incident, and is practically independent of the temperature history of the fire. The normalized heat load concept offers a simple means for converting fire severities into fire resistance requirements, and makes it possible to design buildings for prescribed levels of structural fire safety. The potential of fires to spread by convection and the expected characteristics of fires of noncharring plastics are also discussed.
Publication date	1986
Publisher	National Research Council of Canada. Institute for Research in Construction
Series	Paper (National Research Council of Canada. Institute for Research in Construction), no. IRC-P-1418.
Original	Harmathy, T. Z. ‘Postflashover Fires ? An Overview of the Research at the National Research Council of Canada (NRCC), 1970?1985’. Fire Technology 22, no. 3 (August 1986): 210–33. https://doi.org/10.1007/bf01043125.
Note	Reprinted from: Fire Technology, v. 22, no. 3, Aug. 1986, p. 210-233
Language	English
Peer reviewed	Yes
NRC number	NRCC 26641 NRC-IRC-1964
NPARC number	20377605
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Record identifier	a078a6f4-732c-4695-ab28-c90850c6381f
Record created	2012-07-24
Record modified	2023-01-10

Date modified:: 2024-07-03