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The speed of sound of the liquid refrigerants R125, R218 and mixture of R134a and R152a (68% molar of R134a).

[In Russian. / En russe.]

Author(s) : BELJAEVA O. V., GREBEN'KOV A. Z., TIMOFEEV B. D.

Type of excerpt: Book chapter

Summary

The speed of sound in the liquid phase of the ozone-safe refrigerants R125, R218 and mixture of R134a-R152a (68.8 molar of R134a) are measured. The measurements were performed by impulse method at 2.1 megahertz. The maximal uncertainty of measurements is 0.25%. The experimental data were correlated by polynomials.

Details

  • Original title: [In Russian. / En russe.]
  • Record ID : 1999-2130
  • Languages: Russian
  • Source: Thermophysical properties of refrigerants and heat and mass transfer.
  • Publication date: 1995
  • Document available for consultation in the library of the IIR headquarters only.

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