Post
by gti1x » Wed Jun 02, 2010 10:17 pm
OK, back to the original post:
pressure = force*area
Now the hole in the top has a diameter of about 7mm
The post of the "mushroom" has diameter about 5mm
Area of residual "hole" = Pi * (7^2 - 5^2) /4 = 18.8 mm^2 (approx) = 0.029 sq inches
To hold back 10psi this needs a force of 0.029*10 = 0.29 lbs or just about 4.7 oz
Quite small, eh!
Anyway my kegs
Boots wk 46 yr 1985
Boots wk 29 yr 1985
Brewmaker month 12, year 1981
So I win neither the oldest, not he youngest, and I never was any good at top trumps, either!
Drinking: Kriek (cherry beer); prohibition coconut rum; Davey's Best Bitter 2 (AG); TC; Mead; Gorse Wine; Darwin's summer ale; Apple wine
Conditioning: Grape wine 2009 & 2010; Pomegranate and cherry wine
Brewing: Vinojay (orange wine); Vino de tavola - rosso
Planning: Newton's Porter
Gone but not forgotten: Mead; Framboos (Kit); Gorse wine;