Re: [CAD_CAM_EDM_DRO] OT: Cubic Feet in a Compressed Gas Cylinder?

In a message dated 8/13/00 12:11:52 AM Central Daylight Time,
timg@... writes:

<< If I know the internal volume of a cylinder how can I calculate the
capacity
in cubic feet at 100 psi? As an example, if I have a cylinder that has a
calculated internal volume of 3.5 cubic feet, how much gas can it hold at
100 psi. >>

Lemme try to put my foot in it, again: (I'm trying to be helpful!) Assuming
we are talking "gage pressure" (not "absolute pressure"), then the tank is
"empty" at atmospheric pressure, which is about 14.7 psi "absolute". So, 100
psi is 6.8 atmospheres. 6.8 x 3.5 cu.ft. is 23.8 cu.ft. I THINK that would
be the content of a 3.5 cu.ft. bottle at 100 psi. Not sure! I am an OLD
flatulent, and it's been a a lotta years since I did H.S. physics!!!