Definitions for "AUTOIGNITION TEMPERATURE"
Related Terms:
Ignition temperature, Fire point, Flash point, Spontaneous combustion, Flashover, Combustible, Flashpoint, Recuperator, Egr, Flammable, Pyrophoric, Vapor lock, Heat of combustion, Egt, Ignition, Air injection, Exhaust gas, Boiler, Flash fire, Condensing boiler, Dieseling, Heating value, Stirling engine, Exhaust gas recirculation, Detonation, Catalytic combustor, Aftercooling, Higher heating value, Intercooler, Furnace, Intercooling, Glow plug, Internal combustion engine, Preignition, Scavenging, Hot work, Burner, Ignite, Aquastat, Superheater, Pre-ignition, Internal combustion, Ice, Exhaust, Hhv, Economizer, Flammability, Exhaust pipe, Rekindle, Combustion
The lowest temperature at which a material will ignite and sustain combustion in the absence of a spark or flame.
This tells you how hot a material must be before it will set itself on fire without a flame or spark.| Search | Help | Comments | Home
The minimum temperature at which a substance ignites without application of a flame or spark.
the minimum temperature required to initiate or cause self-sustained combustion, in the absence of a spark or flame. Back
means the minimum temperature required to start or cause self-sustained combustion in any substance in the absence of a high temperature ignition source, such as a spark or a flame. This is not applicable to many substances.
The temperature that a fixed volume of fuel-oxidizer mixture must be heated to before an explosion will take place without an external ignition source, i.e., spark or flame. The values of the minimum AIT used in conventional hazard classifications (e.g., Appendix A of Kuchta) have been measured in a standardized test (ASTM E659) which involves injecting a fuel into a heated flask filled with hot air. Explosion does not take place immediately when fuel is injected but occurs after a delay of between 5 and 600 s. The minimum AIT is strong function of the fuel type (atomic composition and molecular structure), pressure, and fuel concentration. For common hydrocarbon fuels, the minimum AIT ranges between 600C (1350 F) for methane (CH4) to 200C (472F) for dodecane (C12H26). A minimum AIT of 190C (450F) is used for the purposes of hazard analysis for aviation kerosene. Note that the minimum AIT is much higher than the flash point and much lower than typical hot surface ignition temperatures, which can be as high as 900C (2000F) for common hydrocarbon fuels (Smyth, K. C.; Bryner, N. P. Combustion Science and Technology, Vol. 126, 225-253, 1997).
The lowest temperature at which a combustible material ignites in air without a spark or flame.
The same as ignition temperature except that no external ignition source is required for ignition since the material itself has been heated to its ignition temperature. The spontaneous ignition of the gases or vapor given off by a heated material. See ignition temperature
The temperature at which the vapour from a liquid will ignite without a source of ignition such as spark or flame.
The temperature at which a substance will ignite without the presence of an ignition source.
The minimum uniform temperature required to initiate or cause self sustained combustion of solid, liquid, or gaseous substance independent of any other ignition source.
The autoignition temperature of a substance, whether solid, liquid or gaseous, I the minimum temperature required to initiate or cause self-sustained combustion in air with no other source of ignition.
The autoignition temperature or kindling point of a substance is the lowest temperature at which a chemical will spontaneously ignite in a normal atmosphere without an external source of ignition, such as a flame or spark. This temperature is required to supply the activation energy needed for combustion. The temperature at which a chemical will detonate decreases as the pressure increases or oxygen concentration increases.