Implicit Z-factor correlation @model for the natural gas in the wide range of pseudo-reduced temperature 1.0 < T_{pr} \leq 3.0 and pseudo-reduced pressure 0.2 \leq P_{pr} \leq 30
and also a specific range of 0.7 < T_{pr} \leq 1.0 and P_{pr} < 1.0:
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where
Z | Z-factor | ||||
T | fluid temperature | T_{pr} = T/T_{pc} | pseudo-reduced temperature | T_{pc} | pseudo-critical temperature |
P | fluid pressure | P_{pr} = P/P_{pc} | pseudo-reduced pressure | P_{pc} | pseudo-critical pressure |
and
A_1 = 0.3265 | A_2 = -1.070 | A_3 = - 0.5339 | A_4 = 0.01569 | A_5 = - 0.05165 | A_6 = 0.5475 |
A_7 = -0.7361 | A_8 = 0.1844 | A_9 = 0.1056 | A_{10} = 0.6134 | A_{11} = 0.7210 |
See also
Natural Science / Physics /Thermodynamics / Z-factor / Z-factor Correlations @model
Reference