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Tool Talk Discussion Forum

Re: Hauling Oxygen Bottle

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Author  [Modern View]
torch guy

04-22-2013 20:04:22
70.199.0.11



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A mile and a half away is a little far fetched Doc. Just might be a little more wind than a snapped of valve in that statement. Not sayn' you wasn't there, not sayn' it didn't happen but with the math it wouldnt be possible. It'd have to have some help like stick in the belly of a low flying jetliner and fall out after it hitched a ride about a mile or so.




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RodInNS

04-22-2013 21:41:55
216.118.158.123



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 Re: Hauling Oxygen Bottle in reply to torch guy, 04-22-2013 20:04:22  
Mile and a half might be a bit far... but you can go on youtube and watch video of various propane and acetylene storage facility fires... particularly propane... and they launched cylinders several thousand feet. Not hard to see the distance given they're traveling as a ball of fire. It's a little different than compressed inert gas... but it's still stored energy.
I've seen 20# BBQ tanks launch 20 feet in the air when they blow.


Rod

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sflem849

04-23-2013 04:15:51
69.197.84.39



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 Re: Hauling Oxygen Bottle in reply to RodInNS, 04-22-2013 21:41:55  
Quoting Removed, click Modern View to see

This one occured a few miles from my house. You can see a tank launch from the storage tank up and to the right. I don't remember if it was a 20# or 100# tank. The truck driver was filling the delivery truck from the storage tank and started a fire. It burned for a while, but BLEVE'ed before they could get the storage cooled off. The explosion consumed so much oxygen that it pretty much put the fire out.

http://www.youtube.com/watch?v=uXnDjrNbwN0

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JMOR

04-23-2013 06:49:59
72.181.173.171



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 Re: Hauling Oxygen Bottle in reply to sflem849, 04-23-2013 04:15:51  
Seems that we just maybe digressed a tiny bit here. Moving from broken off valve propulsion over to explosions hurling objects. The big WWII guns used explosive charges to hurl 1000+ pound objects 20 miles. That is not a broken tank valve though!



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RodInNS

04-23-2013 07:47:40
216.118.158.123



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 Re: Hauling Oxygen Bottle in reply to JMOR, 04-23-2013 06:49:59  
The principle behind it is exactly the same...

Rod



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JMOR

04-23-2013 08:07:39
72.181.173.171



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 Re: Hauling Oxygen Bottle in reply to RodInNS, 04-23-2013 07:47:40  
Not.



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RodInNS

04-23-2013 08:33:46
216.118.158.123



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 Re: Hauling Oxygen Bottle in reply to JMOR, 04-23-2013 08:07:39  
You're releasing energy from a pressure vessel.... that to me is exactly the same principle. Wether it's static pressure from high pressure containment or the gaseous expansion/explosion of a fuel... make little difference to the projectile.

Rod



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JMOR

04-23-2013 09:11:18
72.181.173.171



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 Re: Hauling Oxygen Bottle in reply to RodInNS, 04-23-2013 08:33:46  
Quoting Removed, click Modern View to seeObserve the difference for yourself, don't take my word for it. 1) release the contents of a 20# (larger if you like) propane tank into your living room.....observe the result of pressure release/gas expansion. 2) Repeat same, except this time throw a match into the living room. Did you see any difference in the amount of gas expansion? Not the same was it?

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RodInNS

04-23-2013 17:49:59
216.118.158.123



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 Re: Hauling Oxygen Bottle in reply to JMOR, 04-23-2013 09:11:18  
You must really think I'm some kind of idiot or something...
Before you spend any more time shooting your mouth, go read about BLEVE... watch some flaming LP cylinders fly, etc.
If you heat a tank that's storing a compressed liquid, short answer is you have a bomb waiting to vent somewhere. That's an entirely different scenario than venting an LP tank and nominal temperatures. As far as igniting vaporized propane... it's got nothing on pressurised propane. Once again, the basic principle of releasing stored energy is EXACTLY the same.

Rod

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JMOR

04-23-2013 18:15:26
72.181.173.171



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 Re: Hauling Oxygen Bottle in reply to RodInNS, 04-23-2013 17:49:59  
Quoting Removed, click Modern View to seeIt is beyond me, as to how you can claim, " Once again, the basic principle of releasing stored energy is EXACTLY the same. ". There is, in the one case, the energy of compression of a gas, whereas in the other case the energy of combustion accompanied by much, much greater expansion than simply releasing a compressed gas. Why don't you run your tractors on compressed air instead of burning fuel? "Exactly" is where you are falling down.

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RodInNS

04-23-2013 18:20:44
216.118.158.123



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 Re: Hauling Oxygen Bottle in reply to JMOR, 04-23-2013 18:15:26  
The principle... is that energy is being released from a storage vessle creating thrust. Sorry I forgot to point that out. It works the same way in both situations.

Rod



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JMOR

04-23-2013 18:24:54
72.181.173.171



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 Re: Hauling Oxygen Bottle in reply to RodInNS, 04-23-2013 18:20:44  
Quoting Removed, click Modern View to seeWe probably both understand. Recognizing that energy/expansion due to combustion is far different than releasing the energy of compression of a gas is key to not being 'exactly. Have a good one!



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Stick welding

04-22-2013 22:02:39
96.53.210.246



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 Re: Hauling Oxygen Bottle in reply to RodInNS, 04-22-2013 21:41:55  
On a wet grassy field they could go a long way.



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