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Prediction and correction of the PVT-data of various substances along the saturation line

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Journal of Engineering Physics and Thermophysics Aims and scope

Abstract

The occurrence of three similarity points (T mel , T m , T cr ) in vapors at saturation has allowed one to develop, along with polynomial expansions, a method for predicting and correcting the PVT-data of the vapor phase.

The curve of the vapor branch of saturation was described by the function y(x)=PsVs(2/3RTcr)-1.

Theoretical values of y(x) were determined with the aid of Legendre polynomials.

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Abbreviations

P:

pressure

V:

volume

T:

temperature, K

Ps :

pressure at saturation

Vs :

volume at saturation

Pm :

pressure at the point of the maximum of Ps/Vs

Vm :

volume at the point of the maximum of the product Ps/Vs

Tm :

temperature at the point of the maximum of the product Ps/Vs

Tcr :

critical temperature

τ:

reduced temperature

A:

critical compressibility factor

R:

universal gas constant

References

  1. L. P. Filippov, Methods of Calculation and Prediction of the Properties of Substances [in Russian], Moscow (1988).

  2. R. Reed, J. Prausnitz, and T. Sherwood, Properties of Gases and Liquids [Russian translation], Leningrad (1982).

  3. V. V. Derman, Thermophysical Properties of Liquids [in Russian], Moscow (1973).

  4. N. M. Putintsev, Inzh.-Fiz. Zh.,54, No. 3, 515–516 (1988).

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  5. N. M. Putintsev, “Interpretation of the critical state of a substance”. Deposited at VINITI, No. 3245, June 24, 1982.

  6. E. S. Rudakov, Thermodynamics of Intermolecular Interaction [in Russian], Novosibirsk (1968).

  7. S. A. Rivkin and A. A. Aleksandrov, Thermophysical Properties of Water and Steam [in Russian], Moscow (1980).

  8. N. B. Vargaftik, Reference Book on the Thermophysical Properties of Gases and Liquids [in Russian], Moscow (1972).

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Authors
  1. N. M. Putintsev
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Additional information

Murmansk Higher Engineering Naval College, Murmansk. Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 64, No. 4, pp. 433–439, April, 1993.

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Putintsev, N.M. Prediction and correction of the PVT-data of various substances along the saturation line. J Eng Phys Thermophys 64, 345–351 (1993). https://doi.org/10.1007/BF00859218

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  • DOI: https://doi.org/10.1007/BF00859218

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