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NCJ Number: NCJ 230165   Add to Shopping cart   Find in a Library
Title: Fire Dynamics and Forensic Analysis of Limited Ventilation Compartment Fires Volume 2: Modeling
  Document URL: PDF 
Author(s): Haavard Boehmer ; Jason Floyd ; Daniel T. Gottuk
Corporate Author: Hughes Associates, Inc.
United States of America
Date Published: 10/2009
Page Count: 214
  Annotation: This study sought to evaluate the effectiveness of the extinction model, two-step combustion model and CO production model in FDS version 5 by simulating limited ventilation, full-scale fire tests in an apartment setting with realistic furniture items and comparing different heat release rate inputs from furniture calorimeter and load cell measurements.
Abstract: Underventilated enclosure fires represent one of the largest causes of fire fatalities, and understanding their behavior is of great interest. The newest major release of the Fire Dynamics Simulator (FDS) has made significant progress towards providing a tool for accurate modeling of underventilated fire behavior. The extinction model provides a more accurate representation of the fire behavior in the compartment, but oxygen and temperature results are not satisfactory for severely underventilated fires. Using data from free burn calorimeter tests as input to FDS for fuel items in a compartment where the heat feedback can influence the pyrolysis can be a significant source of non-conservative error and give a poor representation of the burning behavior when ventilation is limited. This must be considered when choosing the heat release rate input to FDS, and the validity of calorimeter data should be evaluated for each case. The CO production model in FDS gives values lower than recorded in the fire tests due to uncertainty about the material data input and simplifications in the model. (Author Abstract)
Main Term(s): Criminology
Index Term(s): Arson ; Arson investigations ; Arson factors ; Arson investigation training ; NIJ final report
Sponsoring Agency: National Institute of Justice (NIJ)
US Department of Justice
Office of Justice Programs
United States of America
Grant Number: 2007-DN-BX-K240
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
Country: United States of America
Language: English
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