The Z-factor
correlations for fluid mixtures provide fast computational procedures using the
fluid mixture properties rather than multi-component procedures of
Equation of State.
They These correlations are usually modelled through the pseudo-reduced fluid properties LaTeX Math Inline |
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Reduced p ppReduced p
Charts
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Explicit Correlations
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These correlations are quite accurate and work in a wide range of pressures and temperatures but computationally expensive and may have problems with convergence when approaching the critical temperature.
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The explicit correlations do not have convergence issues, generate smooth derivatives for compressibility calculations and provide fast computing.
See also
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Natural Science / Physics /Thermodynamics / Equation of State / Z-factor
[ Pseudo-Critical Point Correlations @model ]
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| Gaganis, An Efficient Method to Predict Compressibility Factor of Natural Gas Streams, energies-12-02577-v2, 2019.pdf Moiseeva, Malyshev, Compressibility factor of natural gas determination by means of molecular dynamics simulations, AIP Advance, 2019, doi.org:10.1063:1.5096618.pdf Kareem, New explicit correlation for the compressibility factor of natural gas, JPEPT, 2016, doi.10.1007:s13202-015-0209-3.pdf wareem Univ Leeds [pdf] Okoro Emeka Emmanuel ,Measurement of the Best Z-Factor Correlation Using Gas Well Inflow Performance Data in Niger-Delta, International Journal of Applied Engineering Research ISSN 0973-4562 Volume 12, Number 12 (2017) |
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