Helpful Android Mobile Phone App

AZZA1984

Just found this and thought I should share with the rest of you: StillMate @ Google Play

crozdog

been using it for a couple of years - my go to app when calculating dilutions

AZZA1984

Nice,

richard

Any formula for easy presentation and use is great.

Just saw the App calculation for wash at 10% ABV which they gave as 53.114 % alcohol in vapour.

I got off the Internet a calculation the other day which gives in my Excel formala calculation a slightly different answer i.e. a bit higher.

Not sure if this is efficiency related or mine is wrong.

Does anyone have a more exacting calculation. ..... Also the temperature addition was of interest.

jacksonbrown

Most of these things are just a polynomial curve fitting to a data set so none are spot on.
The real world won't match the data sets anyway as even the walls of a pot still provide reflux and a reasonable ABV bump.
It's interesting stuff to explore but there's little point chasing acuracy to the 'nth degree in a practical sense.

Smaug

@jacksonbrown said: Most of these things are just a polynomial curve fitting to a data set so none are spot on.
The real world won't match the data sets anyway as even the walls of a pot still provide reflux and a reasonable ABV bump.
It's interesting stuff to explore but there's little point chasing acuracy to the 'nth degree in a practical sense.

+1 What with having to factor in ambient room and coolant Temps etc.....

jacksonbrown

Room temp is a huge one (coolant temp less so in a pot IMO).
I remember I was running outside one day with an VM and taking off at a slight trickle.
A front came through and the temp plummeted.
The take off slowed which brought the RR closer to 100% and the ABV shot up.
Had I been operating as an LM (like at the start of the run) the RR would have gone the other way.
Then a drizzle started and it went into 100% RR because I didn't have any insulation and the whole column was acting like an RC.
A very similar effect happens on the dome and lyne of a pot. Surface area plus a bit of passive reflux falling back to the boiler equals a bump in ABV.
For the data to be 'true' you need zero reflux flowing back to the boiler which is practically impossible.

Tombstone

StillMate sounds good will give it ago.

TheMechWarrior

Best apps are: Spirit Calc and Moonshine Calculator

richard

I inserted an efficiency and it nows seems to behave and now corresponds with other examples I have.

The base formula that I use before percentage is applied ....is ... =-(31.065POWER(D28;6))+(116.08POWER(D28;5))-(169.95POWER(D28;4))+(123.99POWER(D28;3))-(47.195POWER(D28;2))+(9.1938D28)