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Sound-velocity measurements for HFC134a and HFC152a with a spherical resonator.

Author(s) : HOZUMI T., KOGA T., SATO H., WATANABE K.

Type of article: Article

Summary

The authors measured 23 sound velocities in gaseous R134a at temperatures of 273 and 298 K and pressures from 10 to 250 kilopascals and 92 sound velocities in gaseous R152a at temperatures from 273 to 348 K and pressures from 10 to 250 kilopascals by means of a spherical acoustic resonator. Not only the ideal-gas specific heats, but also the second acoustic virial coefficients have been derived from the present sound-velocity measurements. The correlation of the second virial coefficient was developed for R152a.

Details

  • Original title: Sound-velocity measurements for HFC134a and HFC152a with a spherical resonator.
  • Record ID : 1995-0758
  • Languages: English
  • Source: Int. J. Thermophys. - vol. 14 - n. 4
  • Publication date: 1993/07
  • Document available for consultation in the library of the IIR headquarters only.

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