Re: [TCML] Subject: Overheated Secondary

["Brian Foley" <ka1bbg@xxxxxxxxxxx>]

Hi, Hey Folks, this guy spent 4 years in the Navy on a cargo oiler, the info
provided is accurate, please read and heed the Dr.'s warning....Brian F.


      www.genapro.com
----- Original Message -----
From: <resonance@xxxxxxxxxxxx>
To: "Tesla Coil Mailing List" <tesla@xxxxxxxxxx>
Sent: Saturday, January 05, 2008 1:27 PM
Subject: Re: [TCML] Subject: Overheated Secondary


>
>
>
>
> David is dead on here.  A long time ago, outdoors, I poured some gasoline
> on a pile of old rubbish we stacked up to burn.  It was a hot day, around
> 88 degrees.
>
> I stood about 10 feet away from the pile --- which I thought was a safe
> distance, and threw a match at the pile.  What I didn't know what that the
> invisible gas/air vapor mixture, within a period of 60 seconds, had spread
> out to within 1 foot of where I was standing.  When the match struck the
> pile there was a huge "woof" sound and the flame front blasted out to
> within 1 ft. of where I was standing.  It scared the H out of me but
> fortunately didn't burn me.
>
> This incident ingrained forever in my head the serious nature of gasoline
> vapors --- especially how they can spread to great distances.
>
> The bottom line is NEVER EVER USE GASOLINE for any type of solvent work.
>
> The few dollars you save per gallon will in no way equal the pain of the
> slowly healing burns.  A burn lasts a long time and it's just simply not
> worth the risk.
>
> USE KEROSINE ---- ALWAYS!
>
> Dr. Resonance
>
>
>
>
>
> > Hi Marko, all,
> >
> > Yes, I would agree that gasoline has gotten quite expensive
> > as a primary fuel source, but at ~$3/ gallon in the US, it's pro-
> > bably still one of the most economical choices as a *solvent*.
> > I recently had to purchase a one gallon jug of plain, off-brand
> > mineral spirits from Wal-Mart and it was over $6! The cheapest
> > current source of kerosene that I've been able to locate is at the
> > local Exxon station where I pump my own. I just purchased
> > some about a week ago and it cost about $4.70/ gallon. Kero-
> > sene runs considerably higher than this in the prepackaged jugs
> > at the depratment stores. Examples: 2.34 gallon jug at local
> > Wal-Mart - $15 and some change. 5 gallon can of kerosene
> > at Home Depot - ~ $36. Non-petroleum based solvents (ace-
> > tone, toluene, MEK, ect) tend to run even higher at Home
> > Depot or Lowes (generally $10 to $12 for a gallon).
> >
> > As a professional firefighter for nearly 20 years now my obvious
> > main concern with gasoline is not its economic feasability as a
> > solvent but its high volatility and flammability when handled care-
> > lessly. Although nearly everyone is well aware of the flammability
> > of gasoline, some people tend to forget that the heavier-than-air
> > fumes can spread out a considerable distance from the liquid fuel
> > source and can find any source of ignition that could have easily
> > been overlooked (i.e. water heater pilot light), and ignite explo-
> > sively. Remember, gasoline has a flashpoint of -45*F, so it will
> > produce very ignitable vapors at virtually any ambient operational
> > temperature. And once gasoline is ignited, it burns with a thermal
> > yield of approximately 34 MegaJoules/ liter (which is actually
> > LESS thermal yield than that of less refined petroleum products
> > like kerosene, heating oil, or diesel) but since gasoline ignites so
> > readily, thanks to its very low flashpoint temperature, and since it
> > burns so rapidly once ignited, this makes it a solvent choice of
> > considerable danger, from a fire safety point of view. Sorry for
> > the run-on sentence but the bottom line is that if you do choose to
> > use gasoline for this purpose (I've been guilty of doing it myself),
> > then please be very fire safety conscious!
> >
> > David Rieben
> >
> >
> >
> >
> >   I have been a mechanic
> >> of one kind or another for most of 50 years, so gasoline is no strange
> >> solvent for me, but it is rather expensive.
> >>
> >> later later,
> >>
> >> Marko
> >>
> >
> >
> > _______________________________________________
> > Tesla mailing list
> > Tesla@xxxxxxxxxxxxxx
> > http://www.pupman.com/mailman/listinfo/tesla
> >
>
>
> Dr. Resonance
>
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>
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