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Downdraft; backdraft
| Глоссарий синонимов в техническом переводе |
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Тяга,обратная, русский
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Backdraft, немецкий
Backdraft, английский
- A backdraft is an explosion caused by the inrush of air from any source or cause, into a burning enclosure, where combustion has been taking place in a shortage of air. a fire needs oxygen, or an oxidizer, in order to burn. generally, this is not a problem since the atmosphere contains sufficient oxygen to allow a fire to burn. however, if the fire is burning in a closed confined area or space, the fire will consume the available oxygen and generate large amounts of carbon monoxide along with an assortment of other fire gases. these products of incomplete combustion accumulate in the compartment and create an extremely hazardous condition. a backdraft event generally occurs when a fire is smoldering. as oxygen levels drop, visible flames start to diminish because the fire is being starved of oxygen. the confined space can become charged with superheated gases and smoke. the temperature increases, the gases expand and the pressure builds within the confined space. if oxygen is reintroduced into this confined environment, the hot vaporized fuel bursts into flames and the pressurized gases will ignite with explosive force. the explosive force at which the backdraft occurs is a result of the amount of superheated gas in the space and the amount of oxygen introduced. a backdraft is an air-driven event.
- A deflagration resulting from the sudden introduction of air into a confined space containing oxygen deficient products of incomplete combustion.
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Downstream process, английский
Downcoming wave, английский
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