
IIR document
Prediction of refrigerant-lubricant viscosity using the general PC-SAFT friction theory.
Author(s) : MARCELINO NETO M. A., BARBOSA J. R. Jr
Type of article: Article, IJR article
Summary
In this work, a friction theory (f-theory) viscosity model founded on the perturbed-chain statistical associating fluid theory (PC-SAFT) equation of state (EoS) was used to calculate the viscosity of refrigerant-oil mixtures. The model, which links viscosity to the repulsive and attractive pressure terms of the PC-SAFT EoS, can provide satisfactory viscosity predictions of mixtures of carbon dioxide (R-744) and two synthetic lubricants, namely, a polyolester (POE) ISO VG 68 and an alkylbenzene (AB) ISO VG 32, as well as mixtures of isobutane (R-600a) and two other synthetic lubricants, a POE ISO VG 7 and an AB ISO VG 5. The root-mean square (RMS) deviations related to the viscosity prediction were 0.69% (R-600a/POE ISO 7), 0.99% (R-600a/AB ISO VG 5), 3.16% (R-744/POE ISO VG 68) and 3.18% (R-744/AB ISO VG 32).
Available documents
Format PDF
Pages: 92-99
Available
Public price
20 €
Member price*
Free
* Best rate depending on membership category (see the detailed benefits of individual and corporate memberships).
Details
- Original title: Prediction of refrigerant-lubricant viscosity using the general PC-SAFT friction theory.
- Record ID : 30011936
- Languages: English
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 45
- Publication date: 2014/09
Links
See other articles in this issue (23)
See the source
Indexing
-
Themes:
Thermodynamics and changes of state;
CO2;
Hydrocarbons;
Lubricants;
Blends - Keywords: Viscosity; Isobutane; Friction; Thermodynamic property; Prediction; Phase; Mixture; Oil; Refrigerant; CO2
-
Thermophysical Properties of Refrigerants
- Author(s) : IIF-IIR
- Date : 2002
- Languages : English
- Formats : CD-Rom
View record
-
Prediction of phase and volumetric behaviour of...
- Author(s) : NETO M. A. M., BARBOSA J. Jr
- Date : 2009/06/23
- Languages : English
- Source: 3rd Conference on Thermophysical Properties and Transfer Processes of Refrigerants
- Formats : PDF
View record
-
Experimental studies of thermodynamic propertie...
- Author(s) : FEJA S., HANZELMANN C.
- Date : 2015/12
- Languages : English
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 60
- Formats : PDF
View record
-
Properties of lubricants and oil-freon solution...
- Author(s) : TSVETKOV O. B., TSVETKOV O. N., LAPTEV Y.
- Date : 2010
- Languages : Russian
View record
-
A departure-function approach to calculate ther...
- Author(s) : MARCELINO NETO M. A., BARBOSA J. R. Jr
- Date : 2013/05
- Languages : English
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 36 - n. 3
- Formats : PDF
View record