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Summary
Liquid density and viscosity of alternative refrigerants R513A were measured with a vibrating-wire viscosimeter in the temperature of 253 K to 363 K when pressure changes from 1 MPa to 12 MPa. The combined expended uncertainties with a confidence level of 0.95 (k = 2) of density and viscosity are 0.2 % and 2 %, respectively. In addition, a viscosity model of HFCs (fluorocarbons)/, HFOs (hydro-fluoroolefins) and their mixtures was provided by coupling the Perturbed-Chain Statistical Associating Fluid Theory (PC-SAFT) equation of state and a modified residual entropy scaling (RES) method. Obvious quasi-linear relation between the proposed entropy variable and the modified residual viscosity has been confirmed. The overall average absolute percentage deviations between the calculated results with the proposed RES model and the literature experimental data of pure and mixture refrigerants are 2.63 % and 2.05, respectively.
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Details
- Original title: Density and viscosity measurement of R513A and a modified residual entropy scaling model for predicting the viscosity of HFC/HFO refrigerants.
- Record ID : 30032342
- Languages: English
- Subject: Technology
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 162
- Publication date: 2024/06
- DOI: http://dx.doi.org/10.1016/j.ijrefrig.2024.04.008
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Indexing
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Themes:
HFCs;
HFO et HCFO;
Thermodynamic measurements;
Blends - Keywords: Density; Viscosity; R513A; Expérimentation; Model; Thermodynamic property; HFC; HFO; Calculation
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Measurement and modelling of the thermodynamic ...
- Author(s) : ARAMI NIYA A., XIAO X., AL GHAFRI S. Z. S., JIAO F., KHAMPHASITH M., SADEGHI POUYA E., SADAGHIANI M. S., YANG X., TSUJI T., TANAKA Y., SEIKI Y., MAY E. F.
- Date : 2020/10
- Languages : English
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 118
- Formats : PDF
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Analysis of refrigerant R452B in use-phase vers...
- Author(s) : GUNASEKARA S. N., PALM B., IGNATOWICZ M., HILL P.
- Date : 2023/08/21
- Languages : English
- Source: Proceedings of the 26th IIR International Congress of Refrigeration: Paris , France, August 21-25, 2023.
- Formats : PDF
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Viscosity of binary refrigerant mixtures of R32...
- Author(s) : YANG X., LIU H., CHEN S. H., KIM D., YANG F., ARAMI NIYA A., DUAN Y. Y.
- Date : 2021/08
- Languages : English
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 128
- Formats : PDF
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Measurement of kinematic viscosity of refrigera...
- Author(s) : MOROTOMI S., KARIYA K., MIYARA A.
- Date : 2021/05
- Languages : English
- Source: 2021 Purdue Conferences. 18th International Refrigeration and Air-Conditioning Conference at Purdue.
- Formats : PDF
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Searching for suitable lubricants for low globa...
- Author(s) : ALBA C. G., LLOVELL F., VEGA L. F.
- Date : 2021/08
- Languages : English
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 128
- Formats : PDF
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