Unknown Facts About fire - combustion - Encyclopedia Britannica

If the oxidizer is oxygen from the surrounding air, the presence of a force of gravity, or of some similar force triggered by acceleration, is essential to produce convection, which eliminates combustion products and brings a supply of oxygen to the fire. Without gravity, a fire rapidly surrounds itself with its own combustion items and non-oxidizing gases from the air, which leave out oxygen and extinguish the fire.

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This does not use if oxygen is provided to the fire by some process aside from thermal convection.  Newsbreak topics on fire damage  can be extinguished by getting rid of any among the components of the fire tetrahedron. Consider a gas flame, such as from a stove-top burner. The fire can be extinguished by any of the following: switching off the gas supply, which gets rid of the fuel source; covering the flame completely, which smothers the flame as the combustion both utilizes the offered oxidizer (the oxygen in the air) and displaces it from the area around the flame with CO2; application of water, which gets rid of heat from the fire quicker than the fire can produce it (likewise, blowing hard on a flame will displace the heat of the currently burning gas from its fuel source, to the very same end), or application of a retardant chemical such as Halon to the flame, which slows down the chain reaction itself up until the rate of combustion is too slow to keep the chain reaction.

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Methods to do this include stabilizing the input of fuel and oxidizer to stoichiometric proportions, increasing fuel and oxidizer input in this balanced mix, increasing the ambient temperature so the fire's own heat is better able to sustain combustion, or supplying a catalyst, a non-reactant medium in which the fuel and oxidizer can quicker respond.

Left: Flame on Earth; Right: Flame on the ISS A flame is a mix of responding gases and solids emitting noticeable, infrared, and sometimes ultraviolet light, the frequency spectrum of which depends upon the chemical structure of the burning material and intermediate response items. In a lot of cases, such as the burning of raw material, for example wood, or the insufficient combustion of gas, incandescent solid particles called soot produce the familiar red-orange glow of "fire".