White Papers

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Determination of Fire Hose Friction Loss Characteristics

April 1, 2012

Friction loss characteristics of fire hose have changed as a result of evolving hose manufacturing technology. Currently published friction loss characteristics may be overly conservative. While conservatism in fire protection is generally good, in this case it may lead to excessively high pump discharge pressures as the operator applies general rules-of-thumb. The resulting high nozzle

MGA / NHTSA Car Fire Inspection

January 20, 2012

Prepared for:  National Highway Traffic Safety Administration (NHTSA) In 2011, NHTSA’s New Car Assessment Program (NCAP) and Office of Vehicle Safety Compliance (OVSC) contractors performed Federal Motor Vehicle Safety Standard (FMVSS) testing of the Chevrolet Volt to obtain NCAP ratings and to verify compliance with the FMVSS No. 214 side impact pole test requirements.  Under

Chevy Volt Battery Pack Tests

January 20, 2012

A test program was established to narrow down the causes of the MGA fire and to identify the variables that may have contributed to the event. The test program was conducted at General Testing Laboratories in Colonial Beach, Virginia. Six tests were conducted on Chevrolet Volt battery packs, not entire vehicles. The first three tests consisted

Fire Dynamics and Forensic Analysis of Liquid Fuel Fires

February 18, 2011

Liquid fuel spill/pool fires represent the initiating fire hazard in many applications ranging from accidents at industrial plants using combustible liquids to residential arson fires involving flammable fuels. Given the relevancy of such fires and broad range of potential scenarios, it is important to understand how liquid fuel fires develop and how to accurately calculate

Fire Dynamics and Forensic Analysis of Limited Ventilation Compartment Fires, Volume 2: Modeling

October 1, 2009

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. This study sought to evaluate the effectiveness of the extinction

Fire Dynamics and Forensic Analysis of Limited Ventilation Compartment Fires, Volume 1: Experimental

October 1, 2009

Little research has been done to examine full-scale unventilated fires despite their common occurrence and relevance. Many fire fatalities and unsuccessful arson events (i.e., the fire did not become fully involved) occur as a result of these types of fires; however, the majority of fire testing has been conducted with ample ventilation to allow fires to

Structures in Fire: State-of-the-Art, Research and Training Needs

December 1, 2007

Workshop Report from the National Workshop on Structures in Fire Fire represents one of the most severe environmental hazards to which the built-infrastructure is subjected.  Unfortunately, the U.S. has one of the worst fire-loss records in the industrialized world, as demonstrated by the large number of deaths and property destruction.  Within the area of science,

Historical Survey of Multi-Story Building Collapses Due to Fire

January 1, 2006

The historical search for catastrophic multi-story fires included incidents dating back to the 1950’s, or earlier with emphasis on those which occurred in North America.  Buildings of all types of construction and occupancies, in North America, and abroad, are susceptible to fire-induced collapse, particularly older buildings.   Buildings that are undergoing repairs or renovations appear to

Response Time Comparison of Spot and Aspirated Laser Smoke Detection Technologies in a Telecommunications Facility

November 10, 1999

Pittway Systems Technology Group contracted JENSEN HUGHES, Inc. to plan and conduct full-scale in-situ comparison tests of VIEW3 detection systems and aspirated detection systems in a telephone switch center.  The main objective of this test program was to compare the response times of Notifer View detection systems to Vision Systems VESDA4 detectors when exposed to