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11-12-2011, 11:48 AM | #31 | ||
I see you....
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Could it in fact have been an oxygen cylinder that leaked into the cabin? Pure oxygen is explosive.
Anyway this is why there are laws around carrying these bottles inside the cabin of a vehicle. |
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11-12-2011, 04:30 PM | #32 | ||||||
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Let’s cut through some of the BS and stick to the facts regarding the properties of dangerous goods, their vapours and more importantly, in this case, gases.
Some of the comments here are just laughable. There’s an old saying, a little bit of knowledge is a dangerous thing. Quote:
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Class 2.2 gases are not flammable when exposed to a source of ignition, nor are they toxic. Pure oxygen is NOT explosive, however, nothing will burn without it. In the case of an oxygen cylinder rupturing in a fire, the expanding contents will assist a fire in burning rapidly. Oxygen is known as a “permanent” gas, gases that cannot be liquefied at normal temperatures. Nitrogen is another gas that falls under the “permanent gas” umbrella. Quote:
Acetylene (ethyne) - C2H2 SG = 0.90 First of all, acetylene is what’s known as a “dissolved” gas. Gasses dissolved under pressure in a solvent which may be absorbed on a porous material. Acetylene is dissolved in acetone. One of the biggest problems with acetylene is the very wide flammable range. This is why these types of explosions happen. The flammable range of acetylene is 2.5% to 85% vapour in air. In short, acetylene is one of the most volatile gases in commercial use, that’s why it must be treated with total respect. During our dangerous goods training, we are shown in great detail these types of explosions, why they occur and the damage they can cause. There was a case in the early nineties where a plumber lit a smoke in his van when it was parked at the Slough industrial estate in Altona. He didn’t turn the acetylene bottle off at the tap, only at the end of the torch and there was a leak. The van looked liked it had been taken apart with the jaws of life but surprisingly, the plumber survived with minor injuries and blown eardrums. The reason he survived is because of the trajectory of the expanding gases. And for those out there who say that what happened to the Toyota is fake, tell us how you can do this to a vehicle? Explosions are a bit like fires, they are not constant. There are many examples of buildings that have been burned to the ground only for people to find a book or something under the rubble untouched. The same goes for explosions where buildings have been flattened and someone finds a crystal vase.
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12-12-2011, 09:01 AM | #33 | |||
FF.Com.Au Hardcore
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Unfortunately, look what has happened this morning: Link
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12-12-2011, 09:15 AM | #34 | ||
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I remember the 2009 Explosion mentioned above....
I work within 500m of where the explosion happened just 2hrs ago logistics warehouse ... large trucks and forklifts rushing around... EVERYONE I directly work with, felt the concussion from this... Source:yahoo7 Source: The Age http://maps.google.com.au/maps?q=Sta...m&z=16&vpsrc=6 Last edited by BTTB; 12-12-2011 at 09:36 AM. |
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12-12-2011, 09:52 AM | #35 | |||
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12-12-2011, 10:49 AM | #36 | |||
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It’s been reported that the man standing beside the van has died from his injuries. I live just over a kilometre away from this and slept through it, although, the missus herd it happen. Very sad for everyone involved.
http://news.ninemsn.com.au/article.aspx?id=8388226
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12-12-2011, 06:39 PM | #37 | |||
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but not surprising I'm afraid given the ferocity of the blast |
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12-12-2011, 07:11 PM | #38 | ||
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clowns obviously become complacent or lazy about the dangers..... sad to say thats all it comes down to......
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12-12-2011, 08:00 PM | #39 | ||
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Its crazy to think that gas did that....what happens if Nitrous explodes?
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12-12-2011, 08:13 PM | #40 | ||||
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Don’t believe everything you see in the movies.
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12-12-2011, 08:21 PM | #41 | ||||
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Quote:
One of the biggest problems with acetylene is the very wide flammable range. This is why these types of explosions happen. The flammable range of acetylene is 2.5% to 85% vapour in air. Quote:
During our dangerous goods training, we are shown in great detail these types of explosions, why they occur and the damage they can cause. There was a case in the early nineties where a plumber lit a smoke in his van when it was parked at the Slough industrial estate in Altona. He didn’t turn the acetylene bottle off at the tap, only at the end of the torch and there was a leak. The van looked liked it had been taken apart with the jaws of life but surprisingly, the plumber survived with minor injuries and blown eardrums. The reason he survived is because of the trajectory of the expanding gases. And for those out there who say that what happened to the Toyota is fake, tell us how you can do this to a vehicle? Explosions are a bit like fires, they are not constant. There are many examples of buildings that have been burned to the ground only for people to find a book or something under the rubble untouched. The same goes for explosions where buildings have been flattened and someone finds a crystal vase.[/QUOTE] I guess I have it wrong about the gas in a way but we do not know if the cylinder was upright or laying on its side I have just looked at my trade school stuff and have to agree on the Acetylene (ethyne) - C2H2 SG = 0.90 so the gas is lighter than air but it is the acetone that makes it heavy so in part we are both right as a gas the acetylene is light but with the acetone it is heavy and will sit in the lower parts of the vehicle I also had a chat with an old trade school teacher tonight and he will send me a few vids of stuff asap for me to post up I also sent him a link to the pics and he called me a about an hour ago and he thinks it is very probable that it could be an acetylene explosion as he thinks due to the windows being blown out would direct the blast in that direction and in saying that he also mentioned that you could very well survive that due to the change in blast flow towards the easiest path Jason
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12-12-2011, 09:22 PM | #42 | |||
Peter Car
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But only if your granny shifting, not double clutching like you should. |
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12-12-2011, 11:46 PM | #43 | ||||||
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Quote:
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13-12-2011, 11:54 AM | #44 | |||
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Quote:
The two local examples I've seen have left the vehicle a burning mess, the vehicle in the OP's post has no sign of ignition or fire damage at all..? |
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13-12-2011, 12:28 PM | #45 | ||
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I reckon a small enough explosion would cause enough of a blast to do the damage shown, but leave very little, to no, burn marks.
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