Okay, so I've just cold crashed the vanilla chocolate stout and am going to get it under pressure with 25/75 beer gas.
By my calculations using the Draft Beer Quality Manual, to obtain 1.9 volumes of CO2 at 38*F I will need to put it under pressure at 63.7psi.
a = (b + 14.7)/c – 14.7
a = gauge pressure of the blended gas; in this case, a is our unknown
b = ideal gauge pressure of straight CO2, in this case, b = 4.9
c = %ofCO2 intheblend;inthiscase,c=0.25
a = (4.9 + 14.7)/0.25 - 14.7û
a = 19.6/0.25 - 14.7
a = 78.4 - 14.7
a = 63.7
Okay Spider and Oz, take a break here cause I can't talk too slow and that pisses off the rest of the soldiers. Get a few big breaths and we're off.
So, now that I have the ideal serving pressure I need to make sure that the kegging system lines are balanced. Careful, y'all,here come some more numbers.
3/16 vinyl tubing - 3 lbs resistance
Approx. 4 feet raise - 1/2
L = (P – (H * .5) – 1)3
L= (63.7 - (4*0.5) -1)36
L = (63.7 - 2 -1)/3
L =. 20.2 feet of beer line needed to tap from corney
That just seems like a very long beer cable IMO. Thoughts??
This post was brought to you by the fine makers of Ambien so, if all fucked, well suck it JP
