Originally Posted by
ManaAdaSystem
Vapour does not burn, just check the video posted earlier.
Fuel needs to be atomized to catch fire. A fuel spray will do that. As happened in the BA fire during fueling.
Very wrong! By that logic it would be safe to weld a drained petrol tank where there is no atomised fuel spray.
Obviously, to burn, any form of any fuel also needs oxygen mixed with it....if that's what you're getting at?
P.S. do NOT try welding a petrol tank at home, or anywhere else.
Btw, years ago I saw a fire begin in an almost full motorbike petrol tank. Once the (thankfully small) volume of fuel/air vapour above the liquid fuel in the tank instantly burned with a "pop" the fire blew itself out. Thankfully, the person nearest put the fuel cap back on again.