Measurement and Correlation of the Liquid Density and Viscosity of HFO-1336mzz(Z) (<i>cis</i>-1,1,1,4,4,4-Hexafluoro-2-butene) at High Pressure

Sun, Yukun; Li, Xiaojing; Meng, Xianyang; Wu, Jiangtao

doi:10.1021/acs.jced.8b00713

Cited by 18 publications

(8 citation statements)

References 25 publications

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“…R1336mzz(Z): since 2018 a total of 3 data sets (219 data) have been published in the peer-reviewed literature, two of them including data in the compressed liquid [97] are in line with those obtained by [168] for the compressed liquid (AAD% = 0.78), while data in the superheated vapor showed much higher deviations, with AAD% = 4.42 and MAD% = 28.56 (not shown in Fig. 13c).…”

Section: Viscositymentioning

confidence: 60%

“…Compressed liquid: the Sun et al (2019) [97] paper contains 137 density data distributed in the medium temperature range T r = 0.64 to 0.84 and a much wider pressure range P r = 0.035 to 34.55; the maximum reported pressure is 100 MPa, exceeding the validity range of the EoS used in REFPROP (P max = 46 MPa), so 40 points were excluded from the analysis. The data showed good agreement with REFPROP, with AAD% = 0.03% and MAD% = 0.11%.…”

Section: Pvt Propertiesmentioning

confidence: 99%

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Thermophysical Properties of Low GWP Refrigerants: An Update

et al. 2023

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In the last decades, the industry of HVAC&R has faced continuous changes trying to identify environmentally friendly refrigerants for the numerous applications of the sector. However, the amount of low GWP fluids still available as potential refrigerants is limited to some natural fluids and, among synthetic chemicals, to hydrofluoroolefins (HFO). The knowledge of the thermophysical properties of these compounds and the evaluation of their energy efficiency in experimental apparatuses is essential to properly address the selection of the most suitable fluids. However, regarding the wide majority of HFOs, the information on the thermophysical properties, especially for the blends, are still scarce and require further research. In this work, an analysis of the possible substitutes and the available experimental data sets on their thermophysical properties was carried out to find out for which fluids further studies are needed to obtain an accurate representation of their thermophysical properties. Specifically, for 21 pure refrigerants, an overview of the thermodynamic (critical point, psat, PVT, heat capacity and speed of sound) and transport properties (λ, μ, σ) data published in the peer reviewed literature was provided. In addition, a more comprehensive analysis was carried out for four fluids (R1243zf, R1233zd(E), R1336mzz(Z), and R1224yd(Z)), for which major efforts have been made in the last 4 years to investigate the above thermophysical properties. Although an increasing amount of data sets on thermophysical properties have been compiled in recent years, the present study indicates that research efforts are still needed, especially on transport properties, as only 4 of the fluids of interest for the present research have been fully investigated (R1234yf, R1234ze(E), R1233zd(E), R1243zf), while other 4 (R1234ze(Z), R1336mzz(Z), R1224yd(Z), R1336mzz(E)) have been almost completely characterised.

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Section: Viscositymentioning

confidence: 60%

Section: Pvt Propertiesmentioning

confidence: 99%

Thermophysical Properties of Low GWP Refrigerants: An Update

et al. 2023

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“…A total of 15,122 experimental values of the pure fluids were available from NIST ThermoData Engine (TDE) database version 10 and the latest publications. − For these pure fluids, the TDE database contains more than 400 literature sources, details of which are provided in the Supporting Information. The number of the literature sources for each pure fluid are listed in Table , varying from 1 for CF 3 I to 111 for n -hexane.…”

Section: Resultsmentioning

confidence: 99%

Entropy Scaling of Viscosity—III: Application to Refrigerants and Their Mixtures

et al. 2021

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The residual entropy scaling of viscosity was applied to pure refrigerants, including natural refrigerants, hydrofluoroolefins, hydrochlorofluoroolefins, perfluorocarbons, hydrofluorocarbons, chlorofluorocarbons, and hydrochlorofluorocarbons and their mixtures. Experimental temperature, pressure, and viscosity data of 39 pure refrigerants, including more than 15,000 experimental data values from more than 400 literature sources, were used to build a univariate correlation function between the reduced residual viscosity and the dimensionless residual entropy. The correlation function contains only four fitted parameters and a fluid-specific scaling factor. Approximately, 80.0% of the experimental data are predicted within 5.0% when the fluid-specific fitted parameters are used. About 80.0% of the experimental data collapse onto one single curve within 7.9% when the global fitted parameters and the fluid-specific scaling factor were adopted for the correlation function. The correlation function is able to predict mixture viscosity without any additional empirical parameters. Approximately, 80.0% of the experimental data of 27 binary or multi-component mixtures composed by the investigated pure components, encompassing 2890 experimental values from more than 20 literature sources, agree with the correlation function within 7.9%, which is as good as the comparison for pure fluids. The commonly used extended corresponding states model has as many as four more parameters for each pair of components and has been optimized for some of the binaries; therefore, it generally yields better agreement than the proposed correlation function for binary mixtures but similar performance for multi-component mixtures.

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“…In addition, we adopt the critical temperature, pressure, and density consistent with this EOS, namely 444.5 K, 2.903 MPa, and 3.044 mol•l −1 (499.386 464 kg•m −3 ). The viscosity of R-1336mzz(Z) was investigated by Miyara et al [9] and Alam et al [10] and most recently by Sun et al [11] In a separate study, Alam et al [12] presented measurements of the thermal conductivity of R-1336mzz(Z) of the liquid and the gas phase at pressures to 4 MPa and also included simplified correlations for the thermal conductivity of both the saturated liquid and vapor. The data of Alam et al [12] were used to develop a corresponding-states-based model for the full thermal conductivity surface, [13] but the lack of adequate data over a wide range of temperatures and pressures limits model development.…”

Section: Introductionmentioning

confidence: 99%

Measurement and Correlation of the Thermal Conductivity of cis-1,1,1,4,4,4-hexafluoro-2-butene

Perkins

Huber

2020

Int J Thermophys

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New experimental data for the thermal conductivity of cis-1,1,1,4,4,4-hexafluoro-2-butene (R-1336mzz(Z)) are reported for vapor, liquid and supercritical states. These data were obtained with transient hot-wire apparatus over the temperature range from 192 K to 498 K and at pressures from 0.05 MPa to 69 MPa. These data were used to develop a wide-range correlation for the thermal conductivity of the vapor, liquid, and supercritical fluid. The experimental data reported here have an uncertainty of 1 % for the liquid and supercritical regions (densities above 600 kg•m −3 ), 1.5 % for vapor and supercritical regions (pressures greater than or equal to 1 MPa and densities less than 200 kg•m −3 ), 3 % for supercritical states (densities between 200 kg•m −3 and 600 kg•m −3 ), and 3 % for vapor and supercritical states (pressures below 1 MPa). The thermalconductivity correlation developed in this work is estimated to have an expanded relative uncertainty, at a 95 % confidence level, ranging from approximately 1.4 % to 4.2 % depending on the temperature and pressure, with larger uncertainties in the critical region.

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Measurement and Correlation of the Liquid Density and Viscosity of HFO-1336mzz(Z) (cis-1,1,1,4,4,4-Hexafluoro-2-butene) at High Pressure

Cited by 18 publications

References 25 publications

Thermophysical Properties of Low GWP Refrigerants: An Update

Thermophysical Properties of Low GWP Refrigerants: An Update

Entropy Scaling of Viscosity—III: Application to Refrigerants and Their Mixtures

Measurement and Correlation of the Thermal Conductivity of cis-1,1,1,4,4,4-hexafluoro-2-butene

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