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Thermodynamic Properties of high pressure gases 
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#1
Oct2809, 06:56 AM

P: 6

Hi,
Anyone know where I can find thermodynamic properties of gases at high pressure? More specifically I need to find the kinematic viscosity or the absolute viscosity of air at around 300 degrees Kelvin and 330 bar. Cheers 


#2
Oct2809, 08:00 AM

Sci Advisor
P: 1,498

It depends on what gas and who you talk to. All the major aerospace companies for example have their own version of air tables (for high temp/high pressure). They can vary quite significantly.



#3
Oct2809, 12:20 PM

Sci Advisor
PF Gold
P: 2,242

NIST Thermophysical Properties of Fluid Systems should have the data you're after. Otherwise, a thermodynamic properties of air table at the local school library would have it too. You might even be able to find a table online if you search in google for "themodynamic properties of air."



#4
Oct2909, 02:27 PM

Sci Advisor
P: 2,283

Thermodynamic Properties of high pressure gases
Kin. Viscosity = 0.00000090477 (ft²/s) CS 


#5
Oct3009, 04:39 AM

P: 6

Thankyou for this, could you tell me how you calculated/where you found this data? Just so I can do it for myself in future as I reckon I will have a range of other pressures and temps to calculate kinematic viscosity for in future. Thanks 


#6
Oct3009, 07:52 AM

Sci Advisor
P: 2,283

CS 


#7
Jul2411, 06:39 AM

P: 1

Hi
I used ASPEN to find the answer At 300K and 330 bar Dynamic Viscosity=0.0299 cp =2.99e5 Pa.sec Kinematic Viscosity=8.566e8 m^2/sec 


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