Flash fire
Flash fire
A flash fire (pronounced: /ˈflæʃ ˈfaɪər/) is a sudden, intense fire caused by the ignition of a mixture of air and a dispersed flammable substance such as a gas or a liquid. It is characterized by high temperature, short duration, and a rapidly moving flame front.
Etymology
The term "flash fire" is derived from the English words "flash," meaning a sudden burst of light or flame, and "fire," which refers to the process of combustion.
Characteristics
A flash fire typically lasts for less than three seconds. The fire spreads rapidly due to the high concentration of fuel in the air, and it can cause severe burns and other injuries. The heat from a flash fire can also cause secondary fires by igniting nearby combustible materials.
Causes
Flash fires can be caused by a variety of factors, including:
- Spontaneous combustion: This occurs when a material heats up without any external ignition source due to a chemical reaction within the material.
- Gas leak: A leak of flammable gas can mix with air and ignite, causing a flash fire.
- Chemical reaction: Certain chemical reactions can produce heat and flammable gases, which can ignite and cause a flash fire.
Prevention
Preventing flash fires involves controlling the sources of ignition and the concentration of flammable substances in the air. This can be achieved through proper ventilation, regular maintenance of equipment, and the use of fire suppression systems.
Related Terms
- Fire triangle: The three elements needed for a fire to occur: heat, fuel, and an oxidizing agent (usually oxygen).
- Deflagration: A subsonic combustion propagating through heat transfer.
- Explosion: A rapid increase in volume and release of energy in an extreme manner, usually with the generation of high temperatures and the release of gases.
External links
- Medical encyclopedia article on Flash fire
- Wikipedia's article - Flash fire
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