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Sound velocity in refrigerants R125, R218 and R134a-R152a.

[In Russian. / En russe.]

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

Type of article: Article

Summary

Values of sound velocity, obtained for the first time in R125, R218 and in the binary mixture R134a-R152a in a liquid phase are presented. Measurements were carried out by a pulse method at a frequency of 2.1 megahertz. Maximum error of acoustic measurement is 0.25% taking into account the errors relating to parameters of state. Experimental mass data on sound velocity are generalized by polynomials.

Details

  • Original title: [In Russian. / En russe.]
  • Record ID : 1999-2133
  • Languages: Russian
  • Source: Vestnik Mezdunarodarnoj Akademii Holoda - n. 1
  • Publication date: 1998
  • Document available for consultation in the library of the IIR headquarters only.

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