I had a debate on what would happen if I took a sprayed a can of deo over a flame.

My stance was that if the pressure was low enough inside the can, there are small chances that the flame might travel all the way into the can and explain.

My opposition was that no matter how low the pressure inside the can, the FLAME WOULD NEVER AND CAN NEVER go into the can and result in an explosion.

I am still a lil bit unconvinced, if someone could provide me with a techie answer or even just a mere explanation as to what would happen and whether it is remotely possible that the flame might travel back into the can provided the contents of the can are near empty.

Lets not assume the nozzle of a flame thrower....the one on a deo can is cheap plastic.

Prax

Like I said...typed it like my behind was on fire.......sorry abt all the cut and paste mistakes :)

deo?? wasn't that the name of a band? didn't they sing that song called: "holy diver"?:confused: :p

Thatz James Ronnie DIO..ex-vocalist of Black Sabbath....now a solo artist under the name DIO which read upside down, left to right would spell DEVIL.

Well....guess I have my ears deep into Metal too eh ?

Well....les forget the deo part.....my question is purely scientific......lemme rephrase..ARE THERE ANY POSSIBILITIES OF A PRESSURISED CAN OF INFLAMMABLE MATERIAL EXPLODING WHEN SPRAYED OVER A FLAME BECAUSE THE FLAME CREEPS BACK INTO THE CAN JUST AS YOU STOP SPRAYIN BECAUSE THAT IS THE TIME WHEN YOU EASE THE DIFFERENCE IN PRESSURES AND CONTAIN THE LIQUID TO THE CAN....

I would like a purely scientific answer to deliver me unto the lap of Nirvana.

Bless the souls of the astronauts, been on cnn for nearly 3 hours now.

There is not much chance of that. The design of a spray nozzle includes an orfice at the nozzle. The restriction, or orfice, is too small to allow any flame to enter what would be a positive pressure container.

In addition there is a requirement for flame that the fuel/air mixture be correct. That can not happen in a spray can as they do not use oxygen for propellent.

Lastly, because the spray can has a higher pressure than the ambient air pressure surrounding the can, the flame will not follow backwards. Not only that but when the can is expended it is still pressured higher than the 14.7 psia at sealevel. Because of the orfice, once again, there is about a 12# differential between the interior of the can and atmospheric pressure when the can will no longer spray.

Will that do?

Hey Wet,

That'll do all right.:cool: