An equation of state for a new working fluid HCFC-123

Chun cheng Piao, Haruki Sato, Koichi Watanabe

Research output: Contribution to journalArticle

Abstract

An equation of state for environmentally acceptable refrigerant, HCFC-123, has been developed, based on the available thermodynamic property data. It is a non-dimensionalized virial equation of state which has 21 coefficients and effective in the entire fluid phase of pressures up to 15 MPa, temperatures from 270 K to 550 K, and densities from 0 to 1600 kg m3, respectively. The equation represents the reliable PVT measurements within ± 0.5 % in pressure for the superheated gaseous and supercritical fluid phase, while within ± 0.5 % in density for the compressed liquid phase. The vapor pressures and other essential thermodynamic properties have been derived from the present modeling. Detailed discussions on the results compared with other measured data are also reported. As a typical example, the isobaric specific heat data(Nakagawa et al., 1991)in the liquid phase have been reproduced within ± 3 % by the present equation of state, while the existing best equation of state has reproduced them with the maximum deviation of 12 %.

Original languageEnglish
Pages (from-to)87-98
Number of pages12
JournalFluid Phase Equilibria
Volume80
Issue numberC
DOIs
Publication statusPublished - 1992 Nov 30

Fingerprint

working fluids
Equations of state
equations of state
Fluids
liquid phases
Thermodynamic properties
thermodynamic properties
Supercritical fluids
supercritical fluids
refrigerants
fluids
Liquids
Refrigerants
Vapor pressure
vapor pressure
Specific heat
specific heat
deviation
2,2-dichloro-1,1,1-trifluoroethane
coefficients

Keywords

  • alternative refrigerant.
  • equation of state
  • HCFC-123
  • thermodynamic properties

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes
  • Physical and Theoretical Chemistry

Cite this

An equation of state for a new working fluid HCFC-123. / Piao, Chun cheng; Sato, Haruki; Watanabe, Koichi.

In: Fluid Phase Equilibria, Vol. 80, No. C, 30.11.1992, p. 87-98.

Research output: Contribution to journalArticle

Piao, Chun cheng ; Sato, Haruki ; Watanabe, Koichi. / An equation of state for a new working fluid HCFC-123. In: Fluid Phase Equilibria. 1992 ; Vol. 80, No. C. pp. 87-98.
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