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A backdraft (North American English) or backdraught (British English) 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.
If oxygen is suddenly introduced into this environment, such as may happen when a closed door or window is opened, the accumulated hot gases and incompletely burned fuel in the air can suddenly ...
25 de may. de 2021 · Backdraft dampers, also known as gravity dampers, are used in ventilation systems to allow airflow in one direction and prevent airflow in the opposite direction. A relief damper has an elevated and adjustable start-open pressure while providing the backdraft function - think of it as controlled leakage in the direction of flow.
26 de ene. de 2015 · In a backdraft, a fire burning in a confined area consumes all the oxygen, and flames are no longer visible. As temperatures increase, the gases expand and pressure builds.
21 de dic. de 2018 · What is backdraft? In this episode of Burning Issues we dive into what backdraft is and safety in the event of a fire.
24 de feb. de 2017 · A backdraft is caused by the sudden introduction of air into a fire that has depleted most of the available oxygen in a room or building. Since a fire requires...
18 de jul. de 2019 · A backdraft is a dramatic event caused by a fire, resulting from rapid re-introduction of oxygen to combustion in an oxygen-depleted environment; for example, the breaking of a window or opening of a door to an enclosed space.
