Propriétés thermodynamiques des mélanges de frigorigènes hydrofluoro-oléfines (R1234yf et R1234ze (E)): données et modélisation de la densité de l'équilibre vapeur-liquide et de la capacité thermique

Translated title of the contribution: Thermodynamic properties of hydrofluoroolefin (R1234yf and R1234ze(E)) refrigerant mixtures: Density, vapour-liquid equilibrium, and heat capacity data and modelling

Saif ZS Al Ghafri, Darren Rowland, Masoumeh Akhfash, Arash Arami-Niya, Martin Khamphasith, Xiong Xiao, Tomoya Tsuji, Yukio Tanaka, Yoshio Seiki, Eric F. May, Thomas J. Hughes

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

Liquid-phase and vapour-phase densities are reported for the binary refrigerant mixtures (R125 + R1234ze(E)), (R134a + R1234ze(E)), (R143a + R1234ze(E)), (R1234ze(E) + R1234yf), (R125 + R1234yf), (R143a + R1234yf) and (R125 + R152a). The measurements span temperatures from (252 to 294) K and pressures from (0.8 to 4.2) MPa. Vapour-liquid equilibria (VLE) and liquid isobaric heat capacities are also reported for some mixtures. These measurements and previously published data were used to tune binary interaction parameters in existing Helmholtz energy models. Significant improvements in the predicted densities were achieved, for example the root mean squared relative deviation decreased from 0.33% to 0.021% for (R143a + R1234yf). The most significant improvement in the description of VLE occurred for (R1234yf + R1234ze(E)) where the root mean squared deviation in the predicted vapour phase compositions decreased from 0.010 to 0.00084 (a factor of 12).

Translated title of the contributionThermodynamic properties of hydrofluoroolefin (R1234yf and R1234ze(E)) refrigerant mixtures: Density, vapour-liquid equilibrium, and heat capacity data and modelling
Original languageFrench
Pages (from-to)249-260
Number of pages12
JournalInternational Journal of Refrigeration
Volume98
DOIs
Publication statusPublished - 1 Feb 2019

Fingerprint Dive into the research topics of 'Thermodynamic properties of hydrofluoroolefin (R1234yf and R1234ze(E)) refrigerant mixtures: Density, vapour-liquid equilibrium, and heat capacity data and modelling'. Together they form a unique fingerprint.

Cite this