Thermal conversion of aviation oils
These days, strict requirements to aeronautical equipment are imposed to enhance reliability, durability, and environmental compatibility. Aeronautical equipment operation reliability depends not only on its structural and technologic abilities, but also on the fact how aviation oils, fuels and tech...
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| Format: | Article |
| Language: | Russian |
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Moscow State Technical University of Civil Aviation
2023-10-01
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| Series: | Научный вестник МГТУ ГА |
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| Online Access: | https://avia.mstuca.ru/jour/article/view/2235 |
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| author | E. A. Shaporova S. V. Vasilevich S. O. Stoiko V. V. Shchur |
| author_facet | E. A. Shaporova S. V. Vasilevich S. O. Stoiko V. V. Shchur |
| author_sort | E. A. Shaporova |
| collection | DOAJ |
| description | These days, strict requirements to aeronautical equipment are imposed to enhance reliability, durability, and environmental compatibility. Aeronautical equipment operation reliability depends not only on its structural and technologic abilities, but also on the fact how aviation oils, fuels and technical fluid meet quality requirements during operation. During the aircraft engine operation, oils are subjected to the thermal impact. As a consequence, their properties and composition change which can affect the engine operation, on the whole. The most promising means of improving thermal resistance of aviation oils is developing new ones and improving available oil compositions. Therefore, it is feasible to analyze the kinetic properties of the oil thermal conversion which will make it possible to predict their resistance within the extensive temperature range. The paper investigates thermal decomposition kinetics of aviation oils MS-8P, TN-98 and TN-600 used on different types of aircraft in civil aviation of the Republic of Belarus by the method of a thermo-gravimetric analysis. The composition of oil samples has been researched into by IR spectroscopy, chromatography-mass spectroscopy methods. A comparative analysis of research results of new oils and oils drained from aircraft engines indicates that even under insignificant overheat during the operation, a change in the hydrocarbon composition occurs, and the hydrocarbon content of basic types varies to some extent. The oil thermolysis research reveals that potential overheat after engine shutdown complies with the temperatures at which the decomposition commences. Thermal conversion products of oil carbohydrates will contribute to the defect formation in friction subunits. As a result of test data processing of thermal conversion of aviation oils MS-8P, TN-98, TN-600, the principles of their decomposition as well as macrokinetic parameters, allowing us to precisely evaluate the effect of oils operation temperature conditions on their conversion rate, have been specified. It is essential while simulating the aircraft engine operation and predicting variations of oil quality properties during their operation. |
| format | Article |
| id | doaj-art-e567a9f9c5e94692acd809af7c2f7548 |
| institution | Kabale University |
| issn | 2079-0619 2542-0119 |
| language | Russian |
| publishDate | 2023-10-01 |
| publisher | Moscow State Technical University of Civil Aviation |
| record_format | Article |
| series | Научный вестник МГТУ ГА |
| spelling | doaj-art-e567a9f9c5e94692acd809af7c2f75482025-08-20T03:35:41ZrusMoscow State Technical University of Civil AviationНаучный вестник МГТУ ГА2079-06192542-01192023-10-01265658010.26467/2079-0619-2023-26-5-65-801496Thermal conversion of aviation oilsE. A. Shaporova0S. V. Vasilevich1S. O. Stoiko2V. V. Shchur3Belarusian State Aviation AcademyBelarusian State Aviation AcademyBelarusian State Aviation AcademyInstitute of Bioorganic Chemistry of the Belarusian National Academy of SciencesThese days, strict requirements to aeronautical equipment are imposed to enhance reliability, durability, and environmental compatibility. Aeronautical equipment operation reliability depends not only on its structural and technologic abilities, but also on the fact how aviation oils, fuels and technical fluid meet quality requirements during operation. During the aircraft engine operation, oils are subjected to the thermal impact. As a consequence, their properties and composition change which can affect the engine operation, on the whole. The most promising means of improving thermal resistance of aviation oils is developing new ones and improving available oil compositions. Therefore, it is feasible to analyze the kinetic properties of the oil thermal conversion which will make it possible to predict their resistance within the extensive temperature range. The paper investigates thermal decomposition kinetics of aviation oils MS-8P, TN-98 and TN-600 used on different types of aircraft in civil aviation of the Republic of Belarus by the method of a thermo-gravimetric analysis. The composition of oil samples has been researched into by IR spectroscopy, chromatography-mass spectroscopy methods. A comparative analysis of research results of new oils and oils drained from aircraft engines indicates that even under insignificant overheat during the operation, a change in the hydrocarbon composition occurs, and the hydrocarbon content of basic types varies to some extent. The oil thermolysis research reveals that potential overheat after engine shutdown complies with the temperatures at which the decomposition commences. Thermal conversion products of oil carbohydrates will contribute to the defect formation in friction subunits. As a result of test data processing of thermal conversion of aviation oils MS-8P, TN-98, TN-600, the principles of their decomposition as well as macrokinetic parameters, allowing us to precisely evaluate the effect of oils operation temperature conditions on their conversion rate, have been specified. It is essential while simulating the aircraft engine operation and predicting variations of oil quality properties during their operation.https://avia.mstuca.ru/jour/article/view/2235aviation oilsthermal impactconversion degreecomposition |
| spellingShingle | E. A. Shaporova S. V. Vasilevich S. O. Stoiko V. V. Shchur Thermal conversion of aviation oils Научный вестник МГТУ ГА aviation oils thermal impact conversion degree composition |
| title | Thermal conversion of aviation oils |
| title_full | Thermal conversion of aviation oils |
| title_fullStr | Thermal conversion of aviation oils |
| title_full_unstemmed | Thermal conversion of aviation oils |
| title_short | Thermal conversion of aviation oils |
| title_sort | thermal conversion of aviation oils |
| topic | aviation oils thermal impact conversion degree composition |
| url | https://avia.mstuca.ru/jour/article/view/2235 |
| work_keys_str_mv | AT eashaporova thermalconversionofaviationoils AT svvasilevich thermalconversionofaviationoils AT sostoiko thermalconversionofaviationoils AT vvshchur thermalconversionofaviationoils |