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'[PICLIST] [OT] Gas was: [EE]: high efficiency feed'
|On 14 Mar 2001 17:10:06 -0800, John Gardner wrote:
> Don't know what's std in the UK, but small cylinders designed to
> supply vapor CAN be inverted to draw off liquid - I fill portable
> bottles this way.
> Caveat - Imperative that bottles not be over-filled.
> For those unacquainted with LPG, it is stored as a liquid under
> pressure. While the fire danger is nominal, dangerous pressures
> can evolve in an improperly designed, constructed, or OVER-FILLED
> system. Nothing to fool around with if you don't know what you're
> about, so make sure you do...
Just to add my $0.02 to this discussion - what is said above is
absolutely critical. If you fill the container with no headspace, you
build a *powerful* bomb. You can experience a BLEVE - Boiling Liquid
Expanding Vapour Explosion. Having seen what a 9Kg LPG cylinder can do
in a BLEVE situation, I'd urge extreme conservatism! Contact your local
fire brigade for information on BLEVEs if you feel uncertain, most
brigades have at least one training video showing a BLEVE. Quite
disturbing. Here in Australia, we have LPG powered vehicles and they
are designed for a maximum 80% fill, to permit enough headspace. They
also have over-pressure valves etc etc.
Kevin J. Maciunas Net: cs.adelaide.edu.aukevin
Dept. of Computer Science Ph : +61 8 8303 5845
University of Adelaide Fax: +61 8 8303 4366
Adelaide 5005 SOUTH AUSTRALIA Web: http://www.cs.adelaide.edu.au/~kevin
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