Towards the viscosity of refrigerant/oil mixtures
Towards the viscosity of refrigerant/oil mixtures
The paper describes the current status of knowledge of the viscosity of refrigerants R32, R124, R125, R134a, R141b and R152a and their mixtures, in the liquid and vapour states along the saturation line and as a function of pressure. The analysis reveals that there remain significant discrepancies between the results of measurements of the viscosity of pure refrigerants by different authors. These differences are particularly marked when different techniques are employed but almost always exceed the claimed mutual uncertainties. The theoretically-based scheme of Vesovic and Wakeham (VW) for the prediction of the viscosity of mixtures from their pure components is used in a modified form to examine predictions of the behaviour of refrigerant mixtures.
measurements, prediction, refrigerants, viscosity
5-19
Assael, Marc J.
3560e556-765a-43a5-941b-b8d7727789c8
Oliveira, Carla M.B.P.
2eaaaa28-0dfd-4a9b-9b0f-cbe7fced80b5
Wakeham, William A.
88549729-a39a-497f-b112-feaa6be2c449
2003
Assael, Marc J.
3560e556-765a-43a5-941b-b8d7727789c8
Oliveira, Carla M.B.P.
2eaaaa28-0dfd-4a9b-9b0f-cbe7fced80b5
Wakeham, William A.
88549729-a39a-497f-b112-feaa6be2c449
Assael, Marc J., Oliveira, Carla M.B.P. and Wakeham, William A.
(2003)
Towards the viscosity of refrigerant/oil mixtures.
Fluid Phase Equilibria, 210 (1), .
(doi:10.1016/S0378-3812(03)00157-2).
Abstract
The paper describes the current status of knowledge of the viscosity of refrigerants R32, R124, R125, R134a, R141b and R152a and their mixtures, in the liquid and vapour states along the saturation line and as a function of pressure. The analysis reveals that there remain significant discrepancies between the results of measurements of the viscosity of pure refrigerants by different authors. These differences are particularly marked when different techniques are employed but almost always exceed the claimed mutual uncertainties. The theoretically-based scheme of Vesovic and Wakeham (VW) for the prediction of the viscosity of mixtures from their pure components is used in a modified form to examine predictions of the behaviour of refrigerant mixtures.
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Published date: 2003
Keywords:
measurements, prediction, refrigerants, viscosity
Identifiers
Local EPrints ID: 39566
URI: http://eprints.soton.ac.uk/id/eprint/39566
PURE UUID: 6fa0fc2d-bc90-4dec-81b0-8a326f874964
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Date deposited: 30 Jun 2006
Last modified: 15 Mar 2024 08:14
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Contributors
Author:
Marc J. Assael
Author:
Carla M.B.P. Oliveira
Author:
William A. Wakeham
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