Three-parameter corresponding-states correlations for Joule-Thomson inversion curves

被引：2

作者：

Castillo, MG ^{[1
]}

Colina, CM ^{[1
]}

Dubuc, JE ^{[1
]}

Olivera-Fuentes, CG ^{[1
]}

机构：

[1] Univ Simon Bolivar, TAPiD Grp, Thermodynam & Transport Phenomena Dept, Caracas 1086A, Venezuela

来源：

INTERNATIONAL JOURNAL OF THERMOPHYSICS | 1999年 / 20卷 / 06期

关键词：

correlation; corresponding-states; inversion curve; Joule-Thomson;

D O I：

10.1023/A:1022662030434

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Tn the present work, the Lee-Kesler (LK) and Boublik-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-stares 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)less than or equal to 4.0, giving an average absolute deviation (AAD) of 4.5 % for pressures. The BACK-based correlations ale 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.

引用

页码：1737 / 1751

页数：15

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