Posted by Vince on 1/13/2009, 11:10 am, in reply to "Re: Ah, there's something"
68.144.14.16
and only the fumes actually explode, so it presents less explosivedanger than propane, even though gas has far more btu's/volume.
Natural gas is probably one of the more "interesting" explosives in that ...... it all explodes almost instantly when it catches. You hear lots of stories where a gas leak in a house ignited, blowing the house into a pile of splinters and yet the occupant who was sitting in the living room watching TV, merely finds himself sitting on the lawn looking at his pile of rubble ...... pretty well unhurt and wondering how he got there.
The danger of a capacitor is it's lack of internal resistance so that when it's shorted, the entire charge is converted into heat instantly. It's a problem on wheel chairs, for example because they use a low voltage 'super cap' to filter the pulses from the variable ratio generators (which gives the operator his speed control). When those caps are accidentally shorted, the heavy connection lugs are often instantly vaporized.
I can't begin to imagine what a 45kw-hour capacitor would do if it was shorted out. I'm sure it would blow buildings away.
-Vince
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