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Velocity of sound for R125, R134a, R143A, and their mixtures in the saturated vapour phase. Theoretical calculations in comparison with experimental data.

Author(s) : AVSEC J., MARCIC M., LEIPERTZ A., et al.

Summary

The Johnson-Zollweg-Gubbins (JZG) model, which is based on the modified Benedict-Webb-Rubin (BWR) equation of state, and the Lennard-Jones intermolecular potential have been applied. Additionally, multipolar interactions have been taken into account up to octopole term. The velocity of sound has also been theoretically calculated with the help of classic thermodynamics. For refrigerants R125, R134a, and R143a the extended model is compared with results for the velocity of sound from classical thermodynamics over a temperature range 200 to 340 K for the binary and ternary refrigerant mixtures R507 and R404A, respectively. Verification of the different theoretical approaches for R507 and R404A, have been carried out by dynamic light scattering.

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Pages: 2001-5

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Details

  • Original title: Velocity of sound for R125, R134a, R143A, and their mixtures in the saturated vapour phase. Theoretical calculations in comparison with experimental data.
  • Record ID : 2003-0052
  • Languages: English
  • Source: Thermophysical Properties and Transfer Processes of New Refrigerants.
  • Publication date: 2001/10/03

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