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Improving the Precision of High Temperature High Shear Rate Viscosity Measurements
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Abstract
Capillary viscometers provide a convenient method of measuring the viscosity of polymer containing lubricants at 150°C and 106 sec-1 shear rate as specified in ASTM D4624 Procedure. The commercial Cannon HTHS viscometer and the Penn State HTHS viscometer were used in this study.
Improved calibration of the capillaries in the commercial viscometer provided an order of magnitude improvement of the HTHS repeatable values from 4.47% to 0.39% for a typical polymer containing lubricant. The viscosities of seven polymer containing lubricants at 106 sec-1 and 150°C gave an absolute mean percentage difference of 0.62% from measurements made with both capillary viscometers used in this study. The data suggests that substantial improvements can be made in the repeatability of ASTM D4624 HTHS viscosity measurements without changing the design of the current commercial viscometer.
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Citation
Bala, V., Klaus, E., and Duda, J., "Improving the Precision of High Temperature High Shear Rate Viscosity Measurements," SAE Technical Paper 932688, 1993, https://doi.org/10.4271/932688.Also In
Tribological Insights and Performance Characteristics of Modern Engine Lubricants
Number: SP-0996; Published: 1993-10-01
Number: SP-0996; Published: 1993-10-01
References
- Stewart R. M. Selby T. W. “The Relationship Between Oil Viscosity and Engine Performance -- A Literature Search,” SAE Paper No. 770372 , SAE SP416 and ASTM STP621 1977
- Hart W. Klaus E. E. “Laboratory Testing of Fuel Efficient Oils,” SAE Paper No. 790731 1979
- Klaus E. E. Shah P. Krishnamachar V. “Development and Use of the Microoxidation Test with Crankcase Oils,” Proceedings of the Conference on Measurements and Standards for Recycled Oil NBS SP674 155 168 1982
- Perez J. M. Kelly F. A. Klaus E. E. Bogrodia V. “Development and Use of the PSU Microoxidation Test for Diesel Engine Oils,” SAE Paper No. 872028 1987
- Klaus E. E. Angeloni F. M. Fenske M. R. “Development and Application of the PRL Single-Pass Capillary Viscometer,” ASTM Sp. Tech. Publication No. 299 28 48 1961
- Lee F. L. Ph.D. Thesis “Measurement and Analysis of High Shear Viscosities of Polymer-Containing Lubricants,” The Pennsylvania State University 1985
- Lin S. C. Ph.D. Thesis “Rheological Studies of Polymer Solutions at High Shear Rates,” The Pennsylvania State University 1988
- Operating Manual for Cannon Multicell HTHS Viscometer Cannon Instrument Co., State College, PA
- Manning R. E. Lloyd W. A. “Multicell High-Temperature High-Shear Capillary Viscometer,” SAE Paper No. 861562 1986
- Fenske M. R. Klaus E. E. Dannenbrink R. W. “Viscosity-Shear Behavior of Two non-Newtonian Polymer-Blended Oils,” ASTM Sp. Tech. Publication No. 111 Symposium on Methods of Measuring Viscosity at High Rates of Shear 3 23 1950
- Fenske M. R. Klaus E. E. Dannenbrink R. W. “The Comparison of Viscosity-Shear Data Obtained with the Kingsbury Tapered Plug Viscometer and the PRL High Shear Capillary Viscometer,” ASTM Sp. Tech. Publication No. 111 Symposium on Methods of Measuring Viscosity at High Rates of Shear 45 47 1950
- Balasubramaniam (Bala) V. Ph.D. Thesis “High Shear Rhelogy of Multigrade Lubricants,” The Pennsylvania State University 1992
- Duda J. L. Klaus E. E. Lin S. L. Lee F. L. “High Shear Viscosity Studies of Polymer Containing Lubricants,” Proceedings Leeds-Lyons Conference, Leeds England 1986
- Duda J. L. Klaus E. E. Lin S. C. “Capillary Viscometry Study of non-Newtonian Fluids: Influence of Viscous Heating,” Ind. Eng. Chem. Res. 27 2 352 361 1988
- Lee F. L. Klaus E. E. Duda J. L. “Measurement and Analysis of High Shear Viscosities of Polymer-Containing Lubricants,” SAE Paper No. 881663 1988
- Melodick T. Thesis M.S. “High Shear Behavior of Polymer Containing Lubricants,” The Pennsylvania State University 1988
- Wu C. S. Melodick T. Lin S. C. Duda J. L. Klaus E. E. “The Viscous Behavior of Polymer-Modified Oils Over a Broad Range of Temperature and Shear Rate,” J. of Tribology 112 417 425 1990
- Klaus E. E. Duda J. L. Bala V. “Prediction of High Temperature Viscosities of Polymer Solutions up to 10 7 sec -1 Shear Rates,” SAE Paper No. 912411 1991
- Kestin J. Sokolov M. Wakeham W. “Theory of Capillary Viscometers,” App. Sci. Res. 27 241 1973
- Kaye S. E. Rosen S. L. “The Dependence of Laminar Entrance Loss Coefficients on Contraction Ratio for Newtonian Fluids,” AIChE J. 17 1269 1270 1971
- Sylvester N. D. Rosen S. L. “Laminar Flow in the Entrance Region of a Cylinder Tube Parts I and II,” AIChE J. 16 965 972 1970