In my book, there's a question about the actual internal volume of an 80 cf cylinder and they refer to it as "water volume." I thought the actual internal volume was 80 cf???
The formula shown is:
P1V1 = P2V2
3014.7psi x V1 = 14.7psi x 80 ft^3
V1 = 0.39 cf
I don't understand the way the formula is set up...? I don't have an actual tank in front of me but taking some guesstimate measurements, 3.14 x (.33')^2 x 2.5' = 85 cf. Pretty close to the standard 80 so the actual volume of an 80 cf tank should be 80 cf...? Not 0.39 cf. Maybe my made up numbers threw me off... I don't know the wall thickness of an alum tank.
Is the actual volume of an 80 cf tank only .39 cf? The 80 is the volume of the air before being compressed?
Thanks
The formula shown is:
P1V1 = P2V2
3014.7psi x V1 = 14.7psi x 80 ft^3
V1 = 0.39 cf
I don't understand the way the formula is set up...? I don't have an actual tank in front of me but taking some guesstimate measurements, 3.14 x (.33')^2 x 2.5' = 85 cf. Pretty close to the standard 80 so the actual volume of an 80 cf tank should be 80 cf...? Not 0.39 cf. Maybe my made up numbers threw me off... I don't know the wall thickness of an alum tank.
Is the actual volume of an 80 cf tank only .39 cf? The 80 is the volume of the air before being compressed?
Thanks