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A backdraft (North American English), backdraught (British English) [1] or smoke explosion is the abrupt burning of superheated gases in a fire caused when oxygen rapidly enters a hot, oxygen-depleted environment; for example, when a window or door to an enclosed space is opened or broken. Backdrafts are typically seen as a blast of smoke and ...
Such an event is known as backdraft. A delayed flashover occurs when the colder gray smoke cloud ignites after congregating outside of its room of origin. This results in a volatile situation, and if the ignition occurs at the ideal mixture, the result can be a violent smoke gas explosion.
Smoke explosion: See backdraft. Smoke-proof stairwell: Building structure which isolates exit stairwells with relatively fire-resistant walls, self-closing doors, and positive pressure ventilation, to prevent smoke or fumes from entering the stairwell during evacuation of occupants from a fire (or other emergency).
Ventilation is a part of structural firefighting tactics, and involves the expulsion of heat and smoke from a burning building, permitting the firefighters to more easily and safely find trapped individuals and attack the fire. It is frequently performed from the outside of a burning building while the fire is being extinguished on the inside.
Residents of Sylmar told the USA Today network that they heard popping noises and a loud explosion, then saw an orange ball of fire erupt below a huge transmission tower at the edge of the Angeles ...
In fire fighting, this is referred to as gas cooling or smoke cooling. Cases also exist where the ignition factor is not the activation energy. For example, a smoke explosion is a very violent combustion of unburned gases contained in the smoke created by a sudden fresh air input (oxidizer input).
At the end of an unnamed private road in Red River County, on a brisk fall day in 2019, Texas fire marshals approached the site of an explosion. Chunks of concrete littered the ground, while ...
Newsweek’s profile of a former death row inmate and convicted murderer, who is transitioning into a woman, shocked readers who called it "puff piece.". Steven Joseph Hayes was previously ...