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Effects of High Temperature and Pressure on Fuel Lubricated Wear
Technical Paper
2001-01-3523
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Event:
Spring Fuels & Lubricants Meeting & Exhibition
SAE International Fall Fuels & Lubricants Meeting & Exhibition
Language:
English
Abstract
While standardized laboratory-scale wear tests are available to predict the lubricity of liquid fuels under ambient conditions, the reality is that many injection systems operate at elevated temperatures where fuel vaporization is too excessive to perform the measure satisfactorily. The present paper describes a High Pressure High Frequency Reciprocating Rig (HPHFRR) purposely designed to evaluate fuel lubricity in a pressurized environment at temperatures of up to 300°C. The remaining test parameters are identical to those of the widely standardized High Frequency Reciprocating Rig (HFRR). Results obtained using the HPHFRR indicate that wear rate with poor lubricity fuels is strongly sensitive to both temperature and oxygen partial pressure and may be orders of magnitude higher than at ambient conditions. Surprisingly however, wear rate was found to decrease dramatically at temperatures above 100°C, possibly due to evaporation of dissolved moisture. Better lubricity fuels, such as those containing additives, are largely insensitive to the effects of changing either temperature or oxygen partial pressure.
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Authors
Citation
Lacey, P., Gunsel, S., De La Cruz, J., and Whalen, M., "Effects of High Temperature and Pressure on Fuel Lubricated Wear," SAE Technical Paper 2001-01-3523, 2001, https://doi.org/10.4271/2001-01-3523.Also In
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