Abstract
There are three main fuel brands for jet engines of civil aviation used: domestic TS-1 and RT and foreign, produced in relatively small volumes in Russia, JET A-1 (JET A-1). Since the end of the 2000s, foreign manufacturers have made claims to the quality of the mass-used domestic fuel brand TS-1, and these claims have not been specified. However, the service life of a number of foreign engines operating on TS-1 fuel has been reduced by 50%. This circumstance can be caused by both subjective reasons – commercial and political interests of equipment manufacturers, and the objective ones. The main objective reason may be that recently several Russian plants producing TS-1 fuel have begun to produce composite propellant under the same name, where products of secondary oil refining processes are added to the straight-run fractions. These fuels meet the requirements of the standard (GOST 10227-86), which does not contain an indicator that characterizes the anti-wear properties of jet fuels. In the standard for JET A-1 fuel, anti-wear properties are normalized, and they are also normalized in the standard for domestic fuels for supersonic aviation. The article presents comparative tests of anti-wear properties of samples of jet fuels used in the civil aviation. The article substantiates the relevance of the anti-wear properties indicator in the standard for domestic brands of jet fuels for subsonic aircraft introduction, as well as the comparative analysis of the anti-wear properties of fuels produced by various Russian oil refineries. Indicators and methods for assessing the anti-wear properties of aviation fuels can be different. As such an indicator, it is proposed to use the anti-wear properties indicator calculated after testing fuel samples on a four-ball friction machine.
Highlights
Jet fuels are used in all the jet engines, providing us with a set of functions, one of which is lubrication [1,2,3,4,5,6,7] on which the operational reliability of fuel system friction pairs depends on
The jet fuels of the TS-1, RT domestic brands by the GOST 10227-861 and of the foreign one JET A-1 by the GOST 32595–20132 are produced for the civil aviation on the Russian petroleum processing plants
The further development of the study is the solution of the following problems: comparison of the anti-wear properties of the commercial fuel, which is produced at the different Russian oilprocessing plants using different technologies; determination of the relevant indicator, characterizing the jet fuel anti-wear properties; determination of the indicator permissible limits for the civil aviation fuel; display of the initiative for the implementation of the indicator in the standard for the jet fuel
Summary
ТРАНСПОРТ 05.22.01 – Транспортные и транспортно-технологические системы страны, ее регионов и городов, организация производства на транспорте; 05.22.08 – Управление процессами перевозок; 05.22.13 – Навигация и управление воздушным движением; 05.22.14 – Эксплуатация воздушного транспорта. The main objective reason may be that recently several Russian plants producing TS-1 fuel have begun to produce composite propellant under the same name, where products of secondary oil refining processes are added to the straight-run fractions. These fuels meet the requirements of the standard (GOST 10227-86), which does not contain an indicator that characterizes the anti-wear properties of jet fuels. The article substantiates the relevance of the anti-wear properties indicator in the standard for domestic brands of jet fuels for subsonic aircraft introduction, as well as the comparative analysis of the anti-wear properties of fuels produced by various Russian oil refineries.
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