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Monitoring Moisture and Wear Particles in PAG and POE Synthetic Lubricants for R-134a Compressors Using Portable Oil Analyzer
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Abstract
Polyalkalene glycols, or PAG, and polyol esters, or POE, are two synthetic lubricants commonly used in refrigerant compressors. They are both hygroscopic. Moisture which is picked up can lead to chemically weakened load bearing surfaces and to corrosion, thereby accelerating mechanical wear.
PAG and POE lubricant samples having from 0.00% to 1.28% water were tested using a portable oil analyzer. Minimum detectibility was found to begin at 0.04% (400 ppm) moisture. Increasing amounts of moisture above this amount yielded proportional output response. Additional samples were contaminated with known concentrations of metal particles representative of common wear debris. Minimum detectability was found to begin at approximately 15 ppm for 4 to 6 micron size iron particles and <100 ppm for 0 to 60 micron size tin particles.
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Garvey, R. and Obioha, C., "Monitoring Moisture and Wear Particles in PAG and POE Synthetic Lubricants for R-134a Compressors Using Portable Oil Analyzer," SAE Technical Paper 942029, 1994, https://doi.org/10.4271/942029.Also In
References
- OilVieW Computational Systems Incorporated
- Culpon, D. H. Mead, T. C. Lubrication 78 4 1992 A Technical Publication Devoted to the Selection and Use of Lubricants Texaco, Inc.
- Kirkpatrick, J. F. et. al. “Portable Oil Analyzer for Predictive and Proactive Maintenance,” National Meeting of the Vibration Institute Williamsburg June 1992
- Garvey, R. E. Shinn, R. C. “Technical Training Video for the OilView Model 5100 Portable Oil Analyzer,” RCS Productions November 1992
- Peters, H. J. “Users Manual for OilView Model 5100, Portable Oil Analyzer” Computational Systems Incorporated May 1993
- Lang, F. Garvey, R. E “Diesel Engine Oil Condition Monitor - Concept and Validation,” International Meeting of the Joint Oil Analysis Program Pensacola November 1992 Penglelski, A. Creative Technical Sales N. J.
- Motorcraft YN12A, Lot number 010493, F2A2-19577-AB, PAG refrigerant compressor lubricant Motorcraft is a trademark of Ford Motor Company
- “overall index”
- Kirkpatrick, J. F. et. al. “Portable Oil Analyzer for Predictive and Proactive Maintenance,”
- Icematic™ 68 polyol ester lubricant Castrol