Investigation on the Vapor–Liquid Equilibrium for the Ternary Mixture HFC-32 + HFC-125 + HFC-161 at Temperatures from 265.15 K to 303.15 K

Abstract

The ternary mixture HFC-32 + HFC-125 + HFC-161 was considered as a potential alternative refrigerant to HCFC-22 and HFC-410A for the environmentally friendly and excellent thermodynamic properties. Vapor−liquid equilibrium data are necessary for the mixed refrigerant to evaluate its optimal composition and the cycle performance in the refrigeration cycles. On the basis of this, the vapor−liquid equilibrium data for the mixture HFC-32 + HFC-125 + HFC-161 were investigated by the experiment. The vapor−liquid equilibrium data were correlated with the Peng−Robinson (PR) equation-of-state combined with the LCVM (linear combination of Vidal and Michelsen) mixing rule and the NRTL (nonrandom two liquid) excess free energy model. The correlated results revealed a good agreement with the experimental data. The average value of the absolute relative pressure deviations was 0.9 %, and the average values of the absolute composition deviations (abs (y 1 − y 1,cal ), abs(y 2 − y 2,cal )) were 0.0098 and 0.0105, respectively. The results further suggested that there was no azeotrope for the ternary mixture. In addition, on the basis of the interactive parameters obtained by correlating the ternary mixture, the predictions for the binary mixtures HFC-32 + HFC-161, HFC-32 + HFC-125 and HFC-161 + HFC-125 at temperatures of 283.15 K, 293.15 K were conducted. The predicted results were analyzed and discussed by comparison with experimental data from the literature.

Measurement and Correlation of Gaseous pvT Property for 1,1,1,3,3,3-Hexafluoro-2-methoxypropane (HFE-356 mmz)

“…where the V T is volume of the cell and the unit of it is cm 3 . The mass of empty cell (m 2 ) and the mass of the cell containing the sample (m 1 ) were measured by the precision analytical balance with a resolution of 0.5 mg.…”

“…Recently, much research on alternative fluids was published. Mixed refrigerants including binary mixtures, ternary mixtures, and even quaternary mixtures were proposed to meet the requirements of thermal efficiency, safety, and low toxicity. , It was reported that some of the mixed refrigerants had favorable characteristics with respect to the environment . Sheng et al reported the pρTx and specific heat capacity of the (R290+R1243zf) mixture .…”

Toprak Kaynaklı Bir Isı Pompasında R410A’ya Alternatif Soğutucu Akışkanların ASHRAE Sınıflandırmasına Göre Teorik Olarak İncelenmesi

“…For use in residential and lowcapacity commercial air conditioning and heat pumps, the EPA lists R452B, R454B, R454C as acceptable alternatives in addition to R32 [22]. Apart from these refrigerants, R290 [25,32], R161 [33], R152a [34], R466A [35] and R1234yf [25,34] are also specified as alternatives for R410A and R404. The properties of the refrigerants mentioned in Tab.…”

Prospect of solar-driven ejector-compression hybrid refrigeration system with low GWP refrigerants in summer of Guangzhou and Beijing

“…Over the past decades, many brilliant investigations have been reported on the performance of ejector refrigeration systems and most of them were tested with hydrofluorocarbons (HFC) refrigerants, such as HFC-134a, HFC-245fa, HFC-236fa, HFC-141b and HFC-152a. However, due to their high GWPs [12] , they will be surely substituted by more environment-friendly refrigerants in the coming future [13] . Recently, some new fourth-generation refrigerants are proposed, such as hydrofluoroolefin (HFO)/ hydrochlorofluoroolefin (HCFO) refrigerants.…”