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Thermodynamic properties of trans-1,3,3,3-tetrafluoropropene [R1234ze(E)]: measurements of density and vapor pressure and a comprehensive equation of state.

Number: pap. n. R12, 2189

Author(s) : MCLINDEN M., THOL M., LEMMON E. W.

Summary

The thermodynamic properties of a hydrofluoro-olefin (HFO) refrigerant are presented. The p-?-T behavior of highpurity (99.993 %) R1234ze(E) was measured from 240 K to 420 K with pressures to 15 MPa by use of a two-sinker densimeter. The measurements extend from low-density vapor to compressed-liquid states. Vapor pressures were measured in the densimeter from 261 K to 380 K. The equation of state (EOS) for R1234ze(E) is expressed in terms of the Helmholtz energy as a function of temperature and density, and it is valid over the entire fluid surface. The formulation can be used for the calculation of all thermodynamic properties. Comparisons to experimental data are given to establish the accuracy of the EOS.

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Pages: 8 p.

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Details

  • Original title: Thermodynamic properties of trans-1,3,3,3-tetrafluoropropene [R1234ze(E)]: measurements of density and vapor pressure and a comprehensive equation of state.
  • Record ID : 30000760
  • Languages: English
  • Source: 2010 Purdue Conferences. 13th International Refrigeration and Air-Conditioning Conference at Purdue.
  • Publication date: 2010/07/12

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