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Backyard Ballistics This forum is dedicated to the safe teaching and responsible handling of high and low explosives. You will not find any information on how to make "bombs" or any such device(s) . Backyard ballistics will teach you the science and the art of pyrotechnics and how to manufacture and use explosives/pyrotechnics safely and responsibly. Backyard ballistics is also a haven for rocketry and pneumatic cannons. All information contained within this forum is for educational purposes ONLY. Totse does not accept responsiblity for any incident involving the use of the information contained within this forum.

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 #1 
Old 2008-04-18, 20:08
Moderator
 
Wasilla, Alaska
Default living through a propane explosion

When I first came to Alaska, my wife and I lived in this crummy old trailer with no electricity. We heated with a wood stove, and used propane for cooking and illumination. Two big propane tanks were outside, but we used a five-gallon tank in the tiny living room (the trailer was only 8 feet wide) with a gadget up top with a mantle.

Once, when she was Outside, the tank ran out, so I took it to the local general store, got it filled, and went to hook it back up. Unbeknownst to me, I had cross-threaded the fittings, and when I opened the valve, propane flooded the area. When it got to the pilot light on the stove, it fucking exploded. WhOOMP! It blew out one of the kitchen windows and set fire to a bunch of stuff in the living room. I managed to toss everything outside that was on fire, and just beat out the flames on the sofa. I sustained some burns on my hands, but that was it, except for a fierce adrenalin rush.

BTW, that movie stuff--shoot a propane tank and it explodes--just doesn't happen. They even get the color of the flames wrong--propane burns blue. Shoot a propane tank and it just leaks. The gas has to be confined in order for it to actually explode, and as explosions go, it isn't that much of a big deal.
 #2 
Old 2008-04-19, 00:13
Moderator
 
I live in Heresy
Default Re: living through a propane explosion

Yes! This!
People need to realise that gas tanks (propane, fuel, etc ...) do not explode! Fire hazard, sure, but not explosives!

On another note: Are you all allright? No burns or vision/hearing damages?
 #3 
Old 2008-04-21, 01:26
Moderator
 
mah compound
Default Re: living through a propane explosion

Not confined to explode, that doesn't matter, it's about ratio with oxygen. There is a certain percentage range where gases like propane can explode, the numbers being different for different fuels.


BUT, also, depending on concentration in the air, like above, but ALSO the amount, it can DDT, which stands for deflagration to detonation transition, where you actually get supersonic decomposition and it is then technically classified as a high explosive.

All kinds of fuels can do this, even solid fuels such as grain dust.


It's not the confinement, but the ratio of gas/oxygen, as well as intimacy of mixture.
 #4 
Old 2008-04-21, 04:41
justglad2bhere justglad2bhere is offline
Regular
 
Default Re: living through a propane explosion

You're right. The tank won't explode, but the gas certainly can, given the right ratio. Remember, come winter, a number of dwellings in the U.S. suddenly become kindling. It's like gasoline; it doesn't explode...until the fuel-air ratio gets to the right point. Then 1 cup = one stick of dynamite.
 #5 
Old 2008-04-21, 06:04
iceshrike iceshrike is offline
Regular
 
Default Re: living through a propane explosion

Ah the all powerful antithesis. Thermobaric weapons do not compare in the least to high explosives. While an FAE has the VOD high enough to be considered detonation, it is not as powerful as a true high explosive.
 #6 
Old 2008-04-21, 18:32
Moderator
 
Wasilla, Alaska
Default Re: living through a propane explosion

Quote:
Originally Posted by Mokothar
Yes! This!
People need to realise that gas tanks (propane, fuel, etc ...) do not explode! Fire hazard, sure, but not explosives!

On another note: Are you all allright? No burns or vision/hearing damages?


I still have a few light scars on my hands, from burning plastic which got on them as I was pitching out a bunch of bubble wrap that was stored in the area. Few third-degree burns, no biggies.
 
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