I find the particulars of the explosion captured in the video, to be very interesting. Yes of course the intensity of the light, and the sound are
impressive, but did anyone else find the length of the blast interesting? Unlike many of the chemical explosions I have seen, this was not just one
massive detonation, or a series of the same, but seemed to be sustained, like a gigantic bunsen burner got set off.
It reminds me of the sort of thing that happens when an industrial fuel line gets punctured, and there is ignition, the fuel burns intensely and
quickly, but the fire doesnt get as far as the line itself, being busy with burning the fuel that is being ejected at pressure from the pipes, but not
fast enought to create a traditional pressure wave.
An example of a pressure wave creating explosion:
In the example that I have linked to (the Destroyed In Seconds coverage of the PEPCON explosion) , the chemicals at the plant are clearly well
aflame, but the heat and pressure in the storage tanks builds to critical levels, at which point vast volumes of rocket fuel explode, sending out a
massive shockwave which wrecks everything in the vicinity, plant buildings, the lot ,in pretty much an instant.
Now, in the video of the fuel barge "explosion" you see that the fuel is combusting, but the speed of its burn makes me think that the fuel is
being fed to the flame at a more controlled pace, otherwise the storage medium in which it was contained would have gone up all of a piece, sending
bits of fragmented metal and so on, careening off into the dark distance of the night, and creating a pressure wave that probably would have cracked
the barge in two and sent it to the murky depths beneath. As it is, there is no pressure wave, just an awfully long, sustained roar. There is no
bright momentary blast, but a lengthy burn.