One of the cubic equations of real gas state defining the Compressibility factor as a function of fluid pressure and fluid temperature :
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where
Compressibility factor | |||
Fluid pressure | Сritical temperature | ||
Fluid temperature | Reduced pressure | ||
Gas constant | Reduced Temperature | ||
Acentric factor |
Once compressibility Z-factor is known the fluid density can be calculated as:
\rho(p, T) = \frac{1}{Z(p,T)} \cdot \frac{M}{R} \cdot \frac{p}{T} |
where
fluid molar mass |
See also
Natural Science / Physics / Thermodynamics / Equation of State / Real Gas EOS @model
[ Real Gas ]
Ding-Yu Peng and Donald B. Robinson, A New Two-Constant Equation of State, Industrial & Engineering Chemistry Fundamentals , 1976, 15 (1), 59-64, doi.org/10.1021/i160057a011 |