Spectrofluorimetric characteristics of used lubricating oil
 
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Gdynia Maritime University, Faculty of Marine Engineering, Department of Physics Morska Street 81-87, 81-225 Gdynia, Poland
Publication date: 2017-12-20
 
Diagnostyka 2014;15(4):65–71
 
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ABSTRACT
Deterioration of lubricate oil in combustion engines enforces measurements of parameters essential for proper operation of define driving system or to certain engine malfunctions indicate. Since the fluorescence phenomenon is known for oil excited by ultraviolet light – the question arises whether fluorescence spectra evolving with the time of exploitation of oil in the engine. In this paper the introductory studies of excitation-emission spectra (EEMs) for chosen lubricate oil are described. Both fresh and used oil (after 593 h of work in a ship engine), was used to measure EEMs. As a result of comparison of EEMs for both fresh and used lubricate oils more significant transformations in fluorescence spectra of oil caused by their exploitation are indicated. Obtained results allow to predict that spectrofluorimetry method could supplement present methods of used lubricating oil testing.
eISSN:2449-5220
ISSN:1641-6414