Ultrasonic Speed of Sound and Derived Thermodynamic Properties of Liquid 1,1,1,2,3,3,3-Heptafluoropropane (HFC227ea) from 248 K to 333 K and Pressures up to 65 MPa

Ultrasonic Speed of Sound and Derived Thermodynamic Properties of Liquid 1,1,1,2,3,3,3-Heptafluoropropane (HFC227ea) from 248 K to 333 K and Pressures up to 65 MPa

This work reports experimental data of the speed of sound in liquid 1,1,1,2,3,3,3-heptafluoropropane (HFC227ea) from 248 K to 333 K and pressures up to 65 MPa, measured with a pulse−echo method. The results are fitted with a rational approximant. Derived thermodynamic properties are calculated, comb...

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Veröffentlicht in:Journal of chemical and engineering data 2000-05, Vol.45 (3), p.496-501
Hauptverfasser: Pires, P. F, Esperança, J. M. S. S, Guedes, H. J. R
Format: Artikel
Sprache:eng
Schlagworte:
AIR CONDITIONERS
CHLOROFLUOROCARBONS
ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
FLUORINATED ALIPHATIC HYDROCARBONS
MATERIAL SUBSTITUTION
REFRIGERANTS
REFRIGERATING MACHINERY
THERMODYNAMIC PROPERTIES
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Zusammenfassung:This work reports experimental data of the speed of sound in liquid 1,1,1,2,3,3,3-heptafluoropropane (HFC227ea) from 248 K to 333 K and pressures up to 65 MPa, measured with a pulse−echo method. The results are fitted with a rational approximant. Derived thermodynamic properties are calculated, combining our experimental data with density and isobaric heat capacity values published by other authors. The results were compared with the data available in the literature.
ISSN:0021-9568
1520-5134
DOI:10.1021/je9902950