(Vapour + liquid) equilibrium data for the binary system of {trifluoroiodomethane (R13I1) + trans-1, 3, 3, 3-tetrafluoropropene (R1234ze (E))} at various temperatures from (258.150 to 298.150) K
Highlights
► VLE data for {R13I1 + R1234ze (E)} systems were measured. ► This work was based on the static-analytic method. ► The VLE data were correlated using the PR-HV-NRTL model. ► Obviously azeotropic behavior can be found.
Introduction
According to the Montreal protocol, traditional chlorofluorocarbon (CFC) and hydrochlorofluorocarbon (HCFC) refrigerants have already been or will be phased out owing to their ozone depletion potential (ODP) and high global warming potential (GWP). Hydrofluorocarbons (HFCs), hydrocarbons (HCs) and their mixtures are promising alternative refrigerants to replace those CFCs and HCFCs. Besides, there are a great variety of potential applications of HFCs, HCs and their mixtures in the organic Rankine cycle (ORC) [1]. Since it is very hard to find appropriate pure substance to replace the traditional refrigerants or ORC working fluids, mixtures especially azeotropic mixtures may be potential alternative working fluids. (Vapour + liquid) equilibrium data are one of the most important parameters used to calculate the performance of refrigeration cycle or organic Rankine cycle and optimize proportion.
In this work, VLE data for the binary system of {trifluoroiodomethane (R13I1) + trans-1, 3, 3, 3-tetrafluoropropene (R1234ze (E))} were measured by a static-analytic method and correlated using the Peng–Robinson [2] equation of state (PR EoS) with the Huron–Vidal (HV) mixing rule [3] involving the NRTL [4] activity coefficient model (PR-HV-NRTL model). The azeotropic behaviour was found within the experimental temperature range of (258.150 to 298.150) K.
Section snippets
Materials
The R13I1 and R1234ze (E) were supplied by Nanjing Yuji Tuohao Co. Ltd with a declared mole fraction purity of 0.990 and 0.995, respectively. Both of the materials were used without any further purification.
Experimental apparatus
All of the VLE data were determined by the same apparatus described by Dong et al. [5], [6]. The measurements in this work were conducted based on a static-analytic method by turning off the self-designed electromagnetic pump.
The equilibrium cell with two glasses was immersed in an
Results and correlation
The VLE data for the {R13I1 + R1234ze (E)} system were determined at various temperatures from (258.150 to 298.150) K. The experimental VLE data were correlated with the PR-HV-NRTL model. The critical temperature, critical pressure, and acentric factor for each pure component are listed in table 1 [7], [8], [9].
The PR EoS [2] is expressed as follows:where p is the pressure, R is the gas constant (R = 8.314 J · K−1 · mol−1), v is the molar volume, T is the temperature, while a
Conclusions
In this work, (vapour + liquid) equilibrium data for the binary system of {trifluoroiodomethane (R13I1) + trans-1, 3, 3, 3-tetrafluoropropene (R1234ze (E))} were determined by a static-analytic method within the temperature range of (258.150 to 298.150) K. All of the experimental data were correlated using the PR EoS with the HV mixing rule involving the NRTL activity coefficient model (PR-HV-NRTL model). The results show good agreement between experimental and calculated data at each temperature.
Acknowledgements
This work was financially supported by the National Basic Research Program of China under the contract number of 2011CB710701 and the National Natural Sciences Foundation of China under the contract number of 50890183.
References (10)
- et al.
Renew. Sustain. Energ. Rev.
(2010) - et al.
Fluid Phase Equilib.
(1979) - et al.
J. Chem. Thermodyn.
(2011) - et al.
J. Int. J. Refrigerat.
(2011) Int. J. Refrigerat.
(2010)
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2023, Fluid Phase EquilibriaCitation Excerpt :In this study, the PC-SAFT equation was chosen as a thermodynamic model for determining the azeotropic position for binary mixtures of new refrigerants. The method is verified with 8 binary systems, which are: R13I1 + R152a [16], R13I1 + R1234ze [17], R13I1 + R134 [18], R134 + R1234ze [19], R152a + R134 [20], R1234ze + R600a [21], R600 + R245fa [22] and R1234ze + R290 [23]. First, the thermodynamic model is described.