Monitoring of aging processes in motor oils by changing their optical properties
https://doi.org/10.26896/1028-6861-2019-85-11-41-44
Abstract
Mileage is one of the main criteria for replacing engine oil during car operation. At the same time, the problem of timely monitoring the state of working oil due to the lack of control at enterprises and service stations remains an urgent challenge. The results of studying Ravenol 5W-40 SN/CF and Mobil 1 New Life 0W-40 SN/SM/SL/SJ synthetic motor oils using a photometric device which allows direct photometric measurements of samples are presented. A method intended for control of the intensity of aging processes is proposed, including determination of the increment in the rate of change in the absorption coefficient of the light flux as a function of the vehicle mileage. Aging of the oil is shown to be an unstable process which is attributed to the formation of aging products of different optical density and energy intensity. It is also shown that the intensity of aging depends on conditions and operating modes of the engine, technical condition and performance of the cleaning system. The proposed method for monitoring the condition of motor oils during engine operation is proved to be effective. The individual character of aging processes is proved, the intensity of aging can be estimated by the incrementing rate of change of the light flux absorption coefficient depending on the vehicle mileage.
About the Authors
B. I. Kovalsky
Siberian Federal University, Institute of Oil and Gas
Russian Federation
Russian Federation
Boleslav I. Kovalsky
Pr. Svobodny 82, str. 6, Krasnoyarsk, 660041
V. I. Vereshchagin
Siberian Federal University, Institute of Oil and Gas
Russian Federation
Russian Federation
Valery I. Vereshchagin
Pr. Svobodny 82, str. 6, Krasnoyarsk, 660041
V. G. Shram
Siberian Federal University, Institute of Oil and Gas
Russian Federation
Russian Federation
Vyacheslav G. Shram
Pr. Svobodny 82, str. 6, Krasnoyarsk, 660041
Yu. N. Bezborodov
Siberian Federal University, Institute of Oil and Gas
Russian Federation
Russian Federation
Yury N. Bezborodov
Pr. Svobodny 82, str. 6, Krasnoyarsk, 660041
A. N. Sokolnikov
Siberian Federal University, Institute of Oil and Gas
Russian Federation
Russian Federation
Alexander N. Sokolnikov
Pr. Svobodny 82, str. 6, Krasnoyarsk, 660041
References
1. Koval’skii B. I., Vereshchagin V. I., Runda M. M., Yanovich Ya. S., Shram V. G. Influence of climatic conditions of engine operation on the process of engine oil aging / Mir Nefteprod. Vestn. Neft. Komp. 2013. N 12. P. 8 – 10 [in Russian].
2. Vereshchagin V. I., Koval’skii B. I., Runda M. M. The results of the study of the state of engine oil during engine operation / Izv. Tom. Politekhn. Univ. (TPU). 2013. Vol. 322. N 2. P. 157 – 159 [in Russian].
3. CEC L-48-A00: Oxidation stability of lubricating oils used in automotive transmissions by artificial ageing. Coordinating European Council for the Development of Performance Tests for Fuels, Lubricants and Other Fluids. — West Conshohocken (PA, USA), 2007. P. 12.
4. ASTM D.4742-08e1. Standard test method for oxidation stability of gasoline automotive engine oils by thin-film oxygen uptake (TFOUT). — West Conshohocken (PA, USA): ASTM International, 2008. P. 11.
5. ASTM D.6335-09. Standard test method for determination of high temperature deposits by thermo-oxidation engine oil simulation test. — West Conshohocken (PA, USA): ASTM International, 2009. P. 7.
6. Gracia N., Thomas S., Bazin P., Duponchel L., Thibault-Starzyk F., Lerasle O. Combination of mid-infrared spectroscopy and chemometric factorization tools to study the oxidation of lubricating base oils / Catalysis Today. 2010. Vol. 155. P. 255 – 260.
7. Koval’skii B. I., Bezborodov Yu. N., Abazin D. D., Petrov O. N., Shram V. G. Optical density as an indicator of thermal oxidative stability of motor oils / Izv. TulGU. 2017. Issue 12. P. 156 – 168 [in Russian].
8. Kovalski B. I., Shram V. G., Sokolnikov A. N., Petrov O. N., Kravtsova E. G. Photometric monitoring of thermal stability of motor oils and effect of thermal degradation products on antiwear properties / Chemistry and Technology of Fuels and Oils. 2016. Vol. 52. N 3. P. 318 – 324.
9. Shram V. G., Kowalski B. I., Sokolnikov A. N., Bezborodov Yu. N., Petrov O. N. Control thermal oxidative stability and anti-wear properties of engine oils / Journal of Mechanical Engineering. 2015. Vol. 6. P. 17.
10. Petrov O. N., Shram V. G., Kowalski B. I., Sokolnikov A. N. A method for improving the lubricity of motor oils / Journal of Mechanical Engineering. 2015. Vol. 4. P. 37.
11. Shram V. G., Lysyannikov A. V., Kovaleva M. A. The Mechanism of Lubricants Protective Layers Formation in Friction Sliding / Procedia Engineering. 2016. Vol. 150. P. 458 – 463.
12. Koval’skii B. I., Sokolnikov A. N., Petrov O. N., Agrovichenko D. V., Shram V. G. Influence of oxidation processes on temperature resistance and antiwear properties of mineral oil / Izv. TulGU. 2014. N 11 – 2. P. 185 – 192 [in Russian].
13. Lysyannikova N. N., Kovalski B. I., Bezborodov Yu. N., Lysyannikov A. V., Shram V. G., Kravtsova E. G. Control Methods of Operational Properties of Lubricants / IOP Conference Series: Materials Science and Engineering. Vol. 132. N 1.
14. Koval’skii B. I., Pustovit P. Yu., Shram V. G., Petrov O. N. Method of monitoring temperature parameters of engine oil performance / Mir Nefteprod. Vestn. Neft. Komp. 2018. N 3. P. 34 – 36 [in Russian].
15. Koval’skii B. I., Abazin D. D., Petrov O. N., Sokolnikov A. N., Shram V. G. The use of photometry in the control of thermal-oxidative stability of lubricating oils / Izv. TulGU. 2017. Issue 12. P. 232 – 245 [in Russian].
Review
For citations:
Kovalsky B.I., Vereshchagin V.I., Shram V.G., Bezborodov Yu.N., Sokolnikov A.N. Monitoring of aging processes in motor oils by changing their optical properties. Industrial laboratory. Diagnostics of materials. 2019;85(11):41-44. (In Russ.) https://doi.org/10.26896/1028-6861-2019-85-11-41-44
Views:
583
Email this article 