Many years ago, I needed to move the filler hole on
a fuel tank and my local welder wouldn't touch it.
The idea I came up with to totally eliminate the fuel
residue was to use a model-rocket ignitor and ignition
system, and just light the tank up from afar in a big
open space to burn off any traces of fuel.

Of course I'm not stupid enough to try this, but wonder
if it would be practical with some form of inert gas to
slow down the burn rate and make it burn rather than
explode.

Usual disclaimers, etc apply to anything stated here.

Cheers,
-Neil.




-----Original Message-----
From: pic microcontroller discussion list
[mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of Andrew Warren
Sent: Tuesday, June 25, 2002 5:48 PM
To: PICLIST@MITVMA.MIT.EDU
Subject: Re: [OT]: RE: [EE]: Fuel tank sensor / real world solutions


Spehro Pefhany <PICLIST@mitvma.mit.edu> wrote:

> > Don't think I will try, but according to the instructor,
> > you can weld tanks which have already had fuel in them,
> > by filling them with water.
>
> I've heard of steam cleaning plus filling them with CO2.

    Seems like a lot of trouble; the only method I've ever seen is
    the one previously mentioned (filling the tank with water).

    I've never met ANYONE who likes welding on fuel tanks, even when
    the tanks are filled with water; I can't imagine a welder being
    comfortable working on a tank filled with an invisible gas.

    -Andy

=== Andrew Warren -- aiw@cypress.com
=== Principal Design Engineer
=== Cypress Semiconductor Corporation
===
=== Opinions expressed above do not
=== necessarily represent those of
=== Cypress Semiconductor Corporation

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