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Originally posted by GenRadek
and had its jet fuel spill down the shafts then?
Originally posted by IntastellaBurst
God, these truthers hold on to any little inconsistency and exploit it for their own agenda, I swear, if they found a peice of ham in the wreckage, a truther would come out and say ......
" Well its a well documented fact, that the pilot of this flight only ate turkey sandwiches, and in fact had an aversion to ham, therefore this is concrete evidence that the captain was not on board during the crash as this ham clearly did not come from his lunchbox, once again affirming 9/11 was an inside job" .
Get a f*****g grip.
[edit on 8-11-2009 by IntastellaBurst]
Jet fuel doesn't explode when falling down a shaft!
Never mind that; the amount of jet fuel available could not have expanded
through 1000+ feet of elevator shaft to produce enough pressure to blow
off marble slabs from the lobby walls.
Flammability limits refer to the range of compositions, for fixed temperature and pressure, within which an explosive reaction is possible when an external ignition source is introduced. This can happen even when the mixture is cold. Flammability limits are given in terms of fuel concentration (by volume) at a specified pressure and temperature. For example, the lean flammability limit for Jet A (aviation kerosene) in air at sea level is a concentration (by volume or partial pressure) of about 0.7%. The rich flammability limit is about 4.8% by volume or partial pressure. Flammability limits are not absolute, but depend on the type and strength of the ignition source. Studies on flammability limits of hydrocarbon fuels have shown that the stronger the source of the ignition stimulus, the leaner the mixture that can be ignited. Flammability limits also depend on the type of atmosphere (for example, limits are much wider in oxygen than in air), the pressure, and the temperature of atmosphere.
Flammability limits refer to the range of compositions, for fixed temperature and pressure, within which an explosive reaction is possible when an external ignition source is introduced.
Explosion limits usually refer to the range of pressure and temperature for which an explosive reaction at a fixed composition mixture is possible. The composition has to be within the flammable range. The reaction is usually initiated by autocatalytic (sometimes called self-heating) reaction at those conditions, without any external ignition source. In practical terms, this means that the mixture needs to be sufficiently hot. Explosion limits are given in terms of a minimum autoignition temperature (AIT) for ignition of fuel injected into hot air. 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).
Detonation limits are the range of composition within which detonations have been observed in laboratory and field experiments. Detonation limits are a strong function of mixture composition, initial pressure and temperature but usually considered to be narrower than the flammabilty limits. In addition, detonation limits are much more strongly dependent on the ignition source, confinement, and the physical size of the experiment than flammability limits. The ability to initiate and propagate a detonation requires a set of critical conditions to be satisfied and despite extensive research into the subject, the limits are empirical in nature.