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
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