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ABSTRACT

The prudent teaching of the forensic fire engineering analysis of complex building fires must include the subject of computer fire modeling, particularly the use of the Fire Dynamics Simulator (FDS), developed by the National Institute of Standards and Technology (NIST).  However, the problems associated with FDS require that large buildings be divided into rooms or zones, with each assigned to an individual computational mesh.  These mutli-mesh models often produce relatively long execution times of days or weeks and typically require parallel processing computing clusters, which require technically challenging set up and maintenance.  These performance gains can only be accomplished using high performance parallel processing computer clusters designed specifically to use operating systems and hardware that exploit the parallel functions of the FDS code.  This paper presents best practices from the latest research in constructing small, medium, and large-scale high performance parallel processing computing clusters for use in academic environments to support NIST’s FDS fire model.

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Hypothesis vs. Theory

http://www.diffen.com/difference/Hypothesis_vs_Theory September 15, 2017

A hypothesis is either a suggested explanation for an observable phenomenon, or a reasoned prediction of a possible causal correlation among multiple phenomena. In science, a theory is a tested, well-substantiated, unifying explanation for a set of verified, proven factors. A theory is always backed by evidence; a hypothesis is only a suggested possible outcome, and is testable and falsifiable.

Purpose: To present an uncertain possibility that can be explored further through experiments and observations. To explain why a large set of observations are consistently made.

From Out of the Abyss...

This week’s article from the past is titled Incendiary Fires Can Be Spotted and was written by Benjamin Horton, CPCU, who was President of the National Adjuster Traing School in Louisville, Kentucky..  It is taken from the Decembe 1968 Vol. XVI No.5 issue.

Incendiary Fires Can Be Spotted 

In the new issue of NFPA Journal®, President Jim Shannon said the Association will focus on the leading causes of home fires, including cooking. "We also need to continue to push hard for home fire sprinklers. That's still a large priority for NFPA, and we plan to work very aggressively in 2014 on our residential sprinkler initiative," he said.

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NFPA 921, Guide for Fire and Explosion Investigations plays a fundamental role in fire and explosion investigations. A new edition of NFPA 921 is scheduled to be published in 2014. For years, this document has played a critical role in the training, education and job performance of fire and explosion investigators. It also serves as one of the primary references used by the National Fire Academy to support its fire/arson-related training and education programs. It is imperative that investigators understand the scope, purpose and application of this document, especially since it will be used to judge the quality and thoroughness of their investigations.

NFPA 921, Guide for Fire and Explosion Investigations plays a fundamental role in fire and explosion investigations. A new edition of NFPA 921 is scheduled to be published in 2014. For years, this document has played a critical role in the training, education and job performance of fire and explosion investigators. It also serves as one of the primary references used by the National Fire Academy to support its fire/arson-related training and education programs. It is imperative that investigators understand the scope, purpose and application of this document, especially since it will be used to judge the quality and thoroughness of their investigations.

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SAN DIEGO - A Team 10 and Scripps News investigation found arson fires are not investigated properly in many American cities -- including San Diego -- due to a chaotic patchwork of reporting systems and standards.

Many deliberately set building fires are not reported to the federal government.

Nationally, just 5 percent of all residential building fires are intentionally set, according to the National Fire Incident Reporting System, which is part of the Department of Homeland Security.  Data collected by Scripps News suggests the national arson rate to be significantly higher.

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NBC News - Trial by Fire

Visit NBCNews.com for breaking news, world news, and news about the economy

Spoliation of Evidence: A Fire Scene Dilemma

by Guy E. Burnette, Jr., Esquire

Introduction

The term "spoliation" refers to the loss, destruction or alteration of an object which is evidence (or potential evidence) in a legal proceeding.  It is a concept first recognized by courts in England more than a century ago which has only recently taken on significance in this country.  However, it is an issue of particular importance to the field of fire investigation and will likely become increasingly significant as courts are called to decide the consequences of lost or altered physical evidence in fire litigation cases.

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Recalls

Recall Date: May 22, 2014
Recall Number: 14-190

Cordelia Lighting Recalls Two-Lamp Fluorescent Shop Lights Due to Fire Hazard; Sold Exclusively at Home Depot

Description

This recall involves Commercial Electric brand basic hanging shop lights that use two, 48-inch, two-pin, T8, fluorescent lamps. The recalled shop light is a metal light fixture with four plastic lamp sockets and a white finish. It is 48 inches long, 4.25 inches wide and 2.5 inches high and has two 10.5-inch long chains for hanging. The lamp sockets must be snapped into place during installation. Model number CESL401-06 and SKU number 201-462 are printed on a white label on the top of the fixture.

 

Click here for full details

 

Recall Date: May 13, 2014
Recall Number: 14-173

Paramount Recalls Trident Ultraviolet Sanitation Systems for Pools Due to Fire Hazard

Description

This recall involves all Paramount Trident Series 2 (UV II) ultraviolet sanitation systems.  The sanitation systems are a gray tube that stands 32 inches high by 11 inches in diameter.  They are plumbed into the pool’s water circulation pipes and plugged in or hard-wired into an electrical system. The pool’s water runs through the unit and is sanitized by ultraviolet lamps. This is a secondary sanitation system used in conjunction with chemical sanitizers such as chlorine or bromine. “Trident UV II” or “Series 2 Trident Ultraviolet Corporation UV Sanitation System” is printed on a black label on the front of the units. In addition, a silver sticker on the units has the following wording “Paramount Series 2 Ultraviolet Pool Sanitizer System,” “Trident Series 2 Ultraviolet Water Treatment System” or “Trident Ultra UV Series 2 Water Treatment System” and a date code of 9/9/2013 or later. Some date codes consist of a series of letters. Consumers with letters in the date code need to go to www.1paramount.com to determine if their unit is included in the recall.

 

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Back to Basics: The Fire Tetrahedron

How often have you heard the phrase “back to the basics”? It seems
as though every time you turn around you are being instructed to go
“back to the basics,” whether it’s with our children and their math
homework or it’s in the fire service with establishing a water supply,
advancing a hose line, or conducting ventilation. The “basics” are
those tasks that you need to complete first, and they must be completed
every time.

Coffee Break Training

How often have you heard the phrase “back to the basics”? It seems as though every time you turn around you are being instructed to go “back to the basics,” whether it’s with our children and their math homework or it’s in the fire service with establishing a water supply,advancing a hose line, or conducting ventilation. The “basics” are those tasks that you need to complete first, and they must be completed every time.

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White Paper-NHTSA

A Case Study of 214 Fatal Crashes Involving Fire.
Carl L. Ragland
National Highway Traffic Safety Administration
Hsi-Sheng Hsia
Research and Special Programs Administration
United States
Paper Number 9X-S4-O-08
Carl L. Ragland
National Highway Traffic Safety Administration
Hsi-Sheng HsiaResearch and Special Programs Administration
United States
Paper Number 9X-S4-O-08

ABSTRACT
A detailed case study of 214 fatal tire related 
crashes was conducted to determine whether the death was 
caused by the fire or blunt trauma. The cases were also 
examined to determine the specific crash conditions which 
caused the fire. This analysis was necessary because none 
of the existing fatal crash databases contained sufficient 
details to determine the impact configuration or the cause 
of death. Two hundred and ninety three (293) fatalities 
occurred in these crashes. Sixty-five (65) ofthese fatalities 
resulted from fire, with 30 of these fatalities from 16 rear 
impacts. The speed of impact was determined in eight of 
the 16 cases which caused these 30 burn fatalities. In these 
eight cases, the average rear impact speed was 54 mph with 
speeds ranging from 50 - 60 mph, at 7 1% overlap (7 1 % of 
the rear vehicle width engaged), and collinear at 6:00 
O’clock. By projecting these cases to the national sample, 
the number of rear impact fire related fatalities may be 
estimated between 94 and 191.

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