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Re: Europa-List: Fuel fires

Subject: Re: Europa-List: Fuel fires
From: John & Amy Eckel <eckel1@comcast.net>
Date: Mon, 29 Sep 2003 08:50:10

As a further reference the type of cans used in the training film
can be seen in the online McMaster Carr catalog on page 1569.
Note that they have a double-mesh flame arrester screen.

http://www.mcmaster.com/

John
----- Original Message -----
From: "david joyce" <davidjoyce@beeb.net>
Subject: Re: Europa-List: Fuel fires


>
> Sounds like a good idea to me if you can find a good way of fixing it.
> Presumably it's working like the wire mesh on a Davey miner's lamp - by
> conducting sufficient heat away to stop a flame getting through the mesh
> with sufficient temperatrure to propagate the other side, regardless of
> mixture ratio ( which might well be generally high inside the can, but
would
> locally be lower when the can gulps air to replace the poured fuel) David
> Joyce
> ----- Original Message -----
> From: <n3eu@comcast.net>
> To: <europa-list@matronics.com>
> Subject: Re: Europa-List: Fuel fires
>
>
> >
> > > There have been several discussion about the possibility of static
> discharge
> > > causing a fire while refueling.
> > > Many years ago I recall seeing a film on solvent safety cans.  In the
> film
> > > the speaker was lighting a fire at the spout of solvent cans while
> inside
> > > a hanger at Idewild Airport. For you younger guys this is now JFK.  He
> was
> > > able to do this because the spouts on the cans had a wire mesh inside
> the
> > > spout. I am wondering if this would be a viable precaution to take
with
> our
> > > Europas
> > > Any thoughts or experience.
> > >
> > > John, A230
> >
> > Fuel is nonconductive, so I can't see what it has to do with static.
But
> the
> > mesh can aerate the fuel which then creates static inside the tank.  An
> FAA
> > directive on fuel systems discusses aeration and big airplanes planes
> whose
> > pressure-fueling plumbing systems may not be fully conductive.
> >
> > The flame won't ignite the fuel vapor if the mixture ratio is out of a
> > specific range, not that the above stunt was just a parlor trick, but
how
> the
> > mesh can safely alter the ratio isn't intuitive.  Given the product
> liability
> > situation in the U.S., if 10-cents worth of mesh did anything to prevent
> one
> > $10-million judgment for a badly disfiguring, personal injury, you'd
think
> all
> > gas cans would be like that.
> >
> > Regards,
> > Fred F.
> >
> >
>
>




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