Affiliation:
1. Applied Chemicals and Materials Division, National Institute of Standards and Technology , Boulder, Colorado 80305, USA
Abstract
In this work, thermodynamic models based on the corresponding states framework with departure terms are developed for the refrigerant pairs R-32/1234yf, R-32/1234ze(E), R-1234ze(E)/227ea, R-1234yf/152a, and R-125/1234yf. These models are based on new measurements of density, speed of sound, and phase equilibria, combined with the data available in the literature. The model for R-32/1234yf is most comprehensive in its data coverage, with speed of sound deviations within 1%, density deviations within 0.1%, and bubble- and dew-point pressure deviations within 1%. The other mixtures have generally more limited data availability but a similar goodness of fit.
Funder
U.S. Department of Energy
Subject
Physical and Theoretical Chemistry,General Physics and Astronomy,General Chemistry
Reference56 articles.
1. (R)Evolution of refrigerants;J. Chem. Eng. Data,2020
2. Mixture models for refrigerants R-1234yf/134a, R-1234yf/1234ze(E), and R-134a/1234ze(E) and interim models for R-125/1234yf, R-1234ze(E)/227ea, and R-1234yf/152a;J. Phys. Chem. Ref. Data,2022
3. Equations of state for mixtures of R-32, R-125, R-134a, R-143a, and R-152a;J. Phys. Chem. Ref. Data,2004
4. A Helmholtz energy equation of state for calculating the thermodynamic properties of fluid mixtures;Fluid Phase Equilib.,1999
5. Implementing an equation of state without derivatives: teqp;Ind. Eng. Chem. Res.,2022
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