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compressibility of Oxygen

compressibility of Oxygen

compressibility of Oxygen

(OP)
I need to determine the compressibility of Oxygen at 100psig and 100F.  Where can I find this information?

RE: compressibility of Oxygen

At this temperature and pressure Oxygen can pretty much be taken as an ideal gas. I suppose it all depends on what you are trying to calculate and how accurate you want to be.

I have written a units conversion program called Uconeer (which is freeware) that will estimate the compressibilty of several common gases using Peng-Robinson. This is often accurate enough for day-to-day calcs like pipe sizing. You can download the program for free from http://katmarsoftware.com

An alternative is to use the NIST page at http://webbook.nist.gov/chemistry/   This will calculate the density of your gas at the stated temperature and pressure, and you can back-calculate the compressibility from that if you need it.

Harvey

Katmar Software
Engineering & Risk Analysis Software
http://katmarsoftware.com

RE: compressibility of Oxygen

Confirming that assumption of ideal gas, using SRK I get Z=0.9967.

RE: compressibility of Oxygen

And with Peng Robinson I get Z = 0.993.  Just curious, why do you need to know the compressibility?  Relief valve sizing?

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