@wikipedia
One of the cubic equations of real gas state defining the Compressibility factor
as a function of fluid pressure and fluid temperature :| LaTeX Math Block |
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| Z^3 - (1-B) \, Z^2 +(A-2B-3B^2) \, Z -(AB-B^2-B^3) = 0 |
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| B=0.07780 \cdot \frac |
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| LaTeX Math Block |
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| \alpha = \left( 1 + \kappa \, (1-T_r^{0.5}) \right)^2
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mathinlinebody| Z | Compressibility factor | | LaTeX Math Inline |
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body | --uriencoded--\displaystyle a = 0.45724 \cdot \frac%7BR%5e2 \, T_c%5e2%7D%7Bp_c%7D | \kappa = 0.37464 + 1.54226 \, \omega -0.26992 \, \omega^2
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where
| M | Gas molar massGasR | Gas constantGas--uriencoded--\displaystyle A=\frac%7Ba \, \alpha \, p%7D%7B R%5e2 \, T%5e2%7D--uriencoded--\displaystyle B=\frac%7Bb \, p%7D%7B \, T%7D...
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Once compressibility Z-factor
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is known the fluid density ...
can be calculated as:| LaTeX Math Block |
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\rho(p, T) = \frac{1}{Z(p,T)} \cdot \frac{M}{R} \cdot \frac{p}{T} |
where
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See also
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Natural Science / Physics / Thermodynamics / Real Gas[ State of matter ] [ PVT ] [ Ideal Gas ] Equation of State / Real Gas EOS @model
[ Real Gas EOS @model ] [ Ideal Gas EOS @model ] ]
Reference
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