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NCJ Number: NCJ 238704   Add to Shopping cart   Find in a Library
Title: Fire Dynamics and Forensic Analysis of Liquid Fuel Fires
Author(s): Christopher L. Mealy ; Matthew E. Benfer ; Daniel T. Gottuk
Date Published: 02/2011
Page Count: 237
Sponsoring Agency: National Institute of Justice
US Department of Justice
Office of Justice Programs
United States of America
Grant Number: 2008-DN-BX-K168
Sale Source: National Institute of Justice/NCJRS
Box 6000
Rockville, MD 20849
United States of America

NCJRS Photocopy Services
Box 6000
Rockville, MD 20849-6000
United States of America
Document: PDF 
Type: Report (Study/Research)
Language: English
Country: United States of America
Annotation: This study aimed to expand the fundamental understanding of liquid-fuel fire dynamics, establish the utility of forensic tools, and validate empirically based correlations used to model spill fire scenarios.
Abstract: The testing done in this research provided insight into the differences in fire dynamics between pool and spill fires (i.e. thick and thin fuel depths), led to the development of a methodology by which liquid-fuel fire events can be assessed, and identified forensic indicators that can be used in the analysis of liquid-fuel fire events. Key parameters that govern the evolution of fuel-spill fires from inception to extinguishment include properties of the fuel, properties of the substrate, and inherent interfacial properties developed between the liquid and substrate. Data available in the literature indicate that significant differences in mass burning rates exist between spill and pool fires, which significantly affect how fire size is calculated, resulting in a factor of five difference; however, since these findings are based on only two studies with limited fuels, additional work with a wide range of fuels and substrates was warranted. The testing of the current study allowed for the examination of the effects of various parameters (fuel quantity, substrate, and ignition delay) on both the spill and fire dynamics of scenarios that resulted from the release of various quantities of liquid. The tests also provided insight into the forensic fire patterns developed from both liquid and Class A fuel fires on a variety of surfaces. The tests involved a variety of fuels, substrates, and conditions, in order to capture a wide range of potential scenarios. From this set of spill fire data, an analytical methodology was developed to serve as a tool for the fire-protection and forensic communities. 129 figures, 63 tables, 52 references, and appended test matrixes, hood calorimeter configuration and calibration, video analysis methodology and calibration, and tabulated heat flux data
Main Term(s): Criminology
Index Term(s): Arson ; Arson investigations ; Forensics/Forensic Sciences ; Investigative techniques ; Arson factors ; NIJ final report
   
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https://www.ncjrs.gov/App/Publications/abstract.aspx?ID=260758

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