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Two-constant equation of state for accurate prediction of the Joule-Thomson inversion curve for air in cryogenic applications.

Author(s) : NAJJAR Y. S. H., BEIRUTTY M. H. al-, ISMAIL M. S.

Type of article: Article

Summary

In the paper, the Joule-Thomson inversion curve is predicted and compared with experimental data for air. Many equations of state such as Van der Waals, Redlich-Kwong, Soave-Redlich-Kwong and Peng-Robinson fail to obtain accurate prediction. Therefore, using numerical analysis, a simple two-constant equation of state is developed, which gives very favourable comparison with experiment, namely 2% maximum error in predicting thermodynamic properties, and 0.18 as average standard deviation for the Joule-Thomson curve.

Details

  • Original title: Two-constant equation of state for accurate prediction of the Joule-Thomson inversion curve for air in cryogenic applications.
  • Record ID : 1993-2417
  • Languages: English
  • Source: Cryogenics - vol. 33 - n. 2
  • Publication date: 1993

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