Re: Still Operation
I make a stab at it.
Let's experiment a bit.
place a boiler of water on the eye of a standard stove.
On low to medium setting it will boil. A thermometer in the water
will read 100 deg C.
As long as the water is boiling the temp will always be 100 deg C at
sea level (but let's not get into that right now). Even if the power
is turned back to low or up to high the water will still boil and be
Now it will disappear or gas off faster on high because you are
creating more steam thru more power input but the temp will always
be the same.
That's for the temp issue.
As to the percentage purity. The faster you stir the gas molecules
around in the pot or column the more undesirables get caught in the
fray and get into the condensation phase.
cook the pot slowly for the best results. both beans and alcohol.
--- In firstname.lastname@example.org, Derek Hamlet
> I'm just finishing off my latest run and for some reason my still
> behaving differently on this run.Harry
> Usually I have my variac set at around 82% for the majority of the
> run with water provided by a pond pump forcing water through a
> designed x flow condenser, water periodically cooled by a bigchunk of ice.
> This time the still ran perfectly as usually producing ethanol atthis time.
> 95+% (parrot beak).
> However, I was running the 1500 watt element at almost full (99%)
> power for the entire run.
> The take off has now dropped to around 79% and I will turn it off
> when the product drops to 50% or so.
> Does anyone have an explanation as to why I'm using more power
> It also seems to be producing faster than usual.
> The power thing has me a bit bemused?