Implicit Implicit Z-factor Correlations correlation @model for the natural gas in the wide range of pseudo-reduced temperature
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body | --uriencoded--1.0 < T_%7Bpr%7D \leq 3.0 |
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and
pseudo-reduced pressure LaTeX Math Inline |
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body | --uriencoded--0.2 \leq P_%7Bpr%7D \leq 30 |
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and also a specific range of
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body | --uriencoded--0.7 < T_%7Bpr%7D \leq 1.0 |
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and
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body | --uriencoded--P_%7Bpr%7D < 1.0 |
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:
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| Z = \frac{0.27 \, P_{pr}}{y \, T_{pr}} |
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| 1 + T_1 \, y +T_2 \, y^2 + T_3 \, y^5 + T_4 \, y^2 \, (1+ A_8 \, y^2) \cdot \exp \left( - A_8 \, y^2 \right) - \frac{T_5}{y} = 0 |
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| T_1 = A_1 + \frac{A_2 }{ T_{pr} } + \frac{A_3 }{ T_{pr}^3 } |
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| T_2 = A_4 + \frac{A_5 }{ T_{pr} } |
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| T_3 = \frac{A_5 \, A_6 }{T_{pr}} |
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| T_4 = \frac{A_7 }{T_{pr}^3} |
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| T_5 = \frac{0.27 \, P_{pr} }{T_{pr}} |
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where
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See also
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Natural Science / Physics /Thermodynamics / Z-factor / Z-factor Correlations @model
Reference
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Dranchuk, P.M., Purvis, R.A., and D.B. Robinson. "Computer Calculation Of Natural Gas Compressibility Factors Using The Standing And Katz Correlation." Paper presented at the Annual Technical Meeting, Edmonton, May 1973. doi: https://doi.org/10.2118/73-112https://rdrr.io/github/f0nzie/zFactor/man/Dranchuk-Purvis-Robinson.html