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

被引：15
|
作者：
Bell, Ian H. [1 ]
机构：
[1] NIST, Appl Chem & Mat Div, Boulder, CO 80305 USA
来源：
JOURNAL OF PHYSICAL AND CHEMICAL REFERENCE DATA | 2022年 / 51卷 / 01期
关键词：
equation of state; mixture models; refrigerants; thermodynamics; VAPOR-LIQUID-EQUILIBRIUM; THERMODYNAMIC PROPERTIES; BINARY-MIXTURES; PHASE; STATE; PARAMETERS; EQUATIONS; R1234YF; SPEED; R152A;
D O I：
10.1063/5.0086060
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
In this work, new thermodynamic models for refrigerant mixtures are provided for the binary pairs R-1234yf/134a, R-1234yf/1234ze(E), and R-134a/1234ze(E) based on new reference measurements of speed of sound, density, and bubble-point pressures. Fitting the very accurate liquid-phase speed of sound and density data reproduces the bubble-point pressures to within close to their uncertainty, yielding deviations in density less than 0.1% and speed of sound deviations less than 1% (and less than 0.1% for R-1234yf/134a). Models are also presented for the binary pairs R-125/1234yf, R-1234ze(E)/227ea, and R-1234yf/152a based solely on bubble-point measurements. (c) 2022 by the U.S. Secretary of Commerce on behalf of the United States.
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页数：19
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