Presentation Profile
Detailed analysis of lubricant deterioration using multiple analyzers
Currently Scheduled: 10/15/2019 - 11:50 AM - 12:10 PM
Room: South Lobby
Main Author
Andrew Fornadel - Shimadzu Scientific Instruments
- Ryo Kubota - Shimadzu Corporation
- Ayaka Miyamoto - Shimadzu Corporation
- Risa Fuji - Shimadzu Corporation
- Yasushi Suzuki - Shimadzu Corporation
- Tadashi Taniguchi - Shimadzu Corporation
Abstract:
Lubricants are a critical component of combustion engines and serve to lubricate, cool, protect, and clean the internal components of engines. Through use, lubricants degrade due to thermal, physical, and chemical stresses, causing their properties to change. Such degradation of lubricants can lead to a decrease in their utility, excess wear on engine components, and an increase in the potential for malfunction. As such, it is critical to assess the deterioration of a lubricant through its lifespan.
Here, we present results of the use of three analyzers used for condition monitoring of lubricants, including FTIR, GC, and ICP-OES. FTIR is used to assess changes in the molecular composition of lubricants, including oxidation and nitration throughout use, as well as the breakdown of protective compounds, such as anti-oxidants throughout use. Gas chromatography is used to assess fuel dilution, or the incorporation of unburnt fuel into the lubricant, which decreases the lubricants viscosity and lubricating abilities. Lastly, we demonstrate the use of ICP-OES for assessing the incorporation of wear metals or degradation of elemental lubricant additives that can be indicative of the need for changing the lubricant.
For the three analysis methods outlined above, we demonstrate compliance with common test methods, such as ASTM E2412, D2425, D7593, D5185, and D4951, ensuring that these analyzers yield results that are widely acceptable for lubricant condition monitoring.
