Springer Online Journal Archives 1860-2000
Abstract In the present work, the Lee–Kesler (LK) and Boublík–Alder–Chen–Kreglewski (BACK) equations of state were used to compute Joule–Thomson inversion curves for nonsimple fluids. Comparisons with available data showed that predictions were quite reliable and could be used in place of experimental values. Two sets of corresponding-states correlations were developed, giving reduced inversion pressures and densities as functions of reduced temperature and acentric factor. The LK-based correlations are valid for T r≤4.0, giving an average absolute deviation (AAD) of 4.5% for pressures. The BACK-based correlations are valid up to the maximum inversion temperature and give a 6.7% AAD for pressures. Respective volume AADs are 12.0 and 8.0% in the high-density region.
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