New to the forum. I just set up a Brewtech in line oxygen stone. I am moving roughly 2gpm from the brew pot to the fermenter. I installed a liter per minute gauge. So now how do I calculate the liter per minute at 2gpm for the correct oxygen level for something like a 1.052 gravity beer? I have been told turn it on till you barely see the bubbles but is there a more exact method? Is there a formula?
Oxygen flow rates
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chipmunk
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I’ll take a stab... for 10mg/l desired oxygen concentration in your wort... 2 gal/min of wort is a flow rate of 0.126 l/s of wort. So mass oxygen flow rate would be 1.26mg/s. Density of oxygen is around 1.4kg/m3 at 0dC and 101.3 kPa so call it 1.5 kg/m3 since it’s probably at higher pressure at your flow meter. So 1.26*60/1500 = 0.05 l/min. That would assume 100% of your oxygen diffuses into the wort. I have no idea how much of the oxygen doesn’t dissolve and just bubbles out of the wort - so you may need to double that or more.
Nice setup BTW!
Nice setup BTW!
