Re: Threaded Copper adaptor for Standard US Beer Keg
- --- In email@example.com, "tfurey7" <tfurey7@y...>
>Safety is never a non-issue, Tim. That particular scenario pertains
> Harry, This is a non issue if you are using propane .. Right?
to using internal electric elements. Propane is another situation
altogether with it's own set of Do's & Dont's. Leakages, ambient
temperature, strength of distillate, all are things to be mindful
of. Why ambient temp? Read on.
You need to understand the properties of the substance you are
dealing with i.e., alcohol. It has a boiling point (common
knowledge) of about 78C @ 100% purity (rough figures for ease of
explanation). What is NOT commonly known is that it also has a
The flash point is the temperature at which the liquid GIVES OFF
SUFFICIENT VAPOURS TO BE IGNITED. If room temperature is below the
flash point temperature, the liquid will not produce enough vapours
to form a combustible mixture with the air.
However, the LOWER the flash point of the liquid, the EASIER it is
to have a combustible mixture at room temperature, because room
temp. (aka ambient) will be warmer than the flash point of the
Example: gasoline has a flash point of -38C (which is why it is hard
to start your car at -45C) while kerosene has a flash point of +38C.
At ambient temperatures, it is harder to start kerosene on fire than
gasoline, however, both are flammable liquids.
Ethanol is a flammable liquid. At 100% purity ethanol has a flash
point of 13C. An ethanol/water solution that is about 55% (vol/vol)
has a flash point around 21C. As you can see, at ambient
temperatures your once-distilled (stripped) AND your twice-distilled
(keepers) alcohol both would give off vapours. Therefore be very
careful if working with naked flame. Burning alcohol is sometimes
very difficult to see (faint blue flame), until it's too late.
- I use propane, and I seem to have very few problems, compared to the other
members with electric...Dave
At 04:38 AM 11/3/04 +0000, you wrote:
>...but(t)....(we all have one...:>)....you are talking about combustion
>OUTSIDE the boiler...(i doubt anyone would see anything outside an "air
>tight" boiler to indicate its potential demise..if so,they should
>run-like-hell.:>).....I dont think that was the original subject....:>)
>>From: "Harry" <gnikomson2000@...>
>>Subject: [new_distillers] Re: Threaded Copper adaptor for Standard US Beer
> Burning alcohol is sometimes
>>very difficult to see (faint blue flame), until it's too late.
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