Liquid density of LNG at cargo-tank temperature using the Klosek-McKinley corresponding-states method - the custody-transfer default for LNG cargo measurement.
Formula
$$ \rho_L = \frac{\sum x_i M_i}{\sum x_i V_i - k_1 x_{N_2}} $$Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| $x_i$ | Component mole fraction | mol/mol | GC composition |
| $M_i$ | Component molar mass | g/mol | NIST REFPROP |
| $V_i$ | Component pure liquid molar volume | cm³/mol | Klosek & McKinley 1968 |
| $k_1$ | Binary correction term | cm³/mol | GIIGNL handbook |
Sources
- GIIGNL LNG Custody Transfer Handbook v6.0.
- Klosek & McKinley - Proc. LNG-1 (1968).