Changes of optical properties of lubricating oil during its use

• Autorzy: Stelmaszewski A. , Król K.
• Języki publikacji: EN

Abstrakty

EN

The paper presents optical properties of mineral motor oil tested during its service in a car engine. The test was carried out in the question of oil detection and identification in water environment by means of optical methods. The light refraction and absorption coefficients were measured for the fresh oil and in particular state of its use. Light absorption as well as refractivity of oil increase during its use. The contrast, which the oil layer creates on the sea surfaces, slightly increases with oil use and this effect does not practical influence on the detection. Variations of light absorption disallow precise determination of the thickness of an oil layer. Furthermore, fluorescence spectra excited with ultraviolet radiation were measured. Both fresh and used oil has the greatest ability to photoluminescence in the range of wavelength between 300 to 400 nm. For all investigated wavelengths fluorescence increases with the time of oil use. Also shapes of spectra change. These changes disallow to determine the kind of oil by means of fluorescence methods.

Słowa kluczowe

EN

oil; sea; identification; absorption; fluorescence; refraction

• Wydawca: Faculty of Ocean Engineering and Ship Technology, Gdańsk University of Technology
• Czasopismo: Journal of Polish CIMAC
• Rocznik: 2012
• Tom: Vol. 7, no 2
• Strony: 197--204
• Opis fizyczny: Bibliogr. 22 poz., rys.

Twórcy

autor

Stelmaszewski A.

autor

Król K.

• Gdynia Maritime University ul. Morska 83-87, 81-225 Gdynia tel.: [phone],

Bibliografia

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