Buildingsonfire Fire Dynamics-Residential Fire NIST Report and Video Detail Dynamics of Deadly Chicago House Fire From NIST Tech Beat: December 2, 2014 This summary video explains the modeling NIST did to better understand the dynamics of a 2012 house fire that caused the death of a Chicago firefighter. A new National Institute of Standards and Technology (NIST) computer-modeling study of a 2012 Chicago house fire reveals the conditions that unleashed a surge of searing gases, leading to the death of a veteran firefighter. NIST examined the fire dynamics of the incident at the request of the National Institute for Occupational Safety and Health (NIOSH) and the Chicago Fire Department. Simulations conducted with NIST’s Fire Dynamics Simulator examined the fire’s temperature and pressure at various locations and the resulting flow path. With the agency’s Smokeview visualization software, NIST researchers also developed a graphical representation of the fire’s behavior and the conditions that firefighters likely experienced during the course of their interior operations. The simulation shows that fire in a covered back porch caused a closed steel-faced, wood-framed door to crumble, releasing pressure and causing hot gases to pour into the adjoining hallway where the victim and another firefighter were advancing a fire hose. The coincidental timing of the responders’ “interior attack” and the door’s failure proved to be deadly. In less than 5 seconds, the flow of gases caused the hallway temperature to soar, from about 60 degrees Celsius (140 degrees Fahrenheit) to at least 260 degrees Celsius (500 degrees Fahrenheit), the study found. The victim, a 54-year-old captain, was overwhelmed by the rush of fire gases. He was removed to the exterior, revived by paramedics, and transported to a hospital, where he died. NIOSH Report: cdc.gov/niosh/fire/pdfs/face201228.pdf Archived References on CommandSafety and TheCompanyOfficer commandsafety/2012/11/03/nothing-is-ever-routine-residential-fire-chicago-lodd/ thecompanyofficer/2012/11/09/chicago-fire-captain-herbie-johnson-remembered-for-his-kindness-humor-bravery/ youtu.be/nY3JO_Kf9Qk
Posted on: Thu, 11 Dec 2014 12:41:17 +0000
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