Authors: A.A. Ryabinin, N.N. Lysyannikova, Sokolnikov, A.N., M.A. Plakhotnikova

Title of the article: The energy relationship between the products of thermal degradation and evaporation of motor oils

Year: 2022, Issue: 3, Pages: 22-31

Branch of knowledge: 05.02.11 Methods of control and diagnostics in mechanical engineering

Index UDK: 61.51:52.45.19

DOI: 10.26730/1999-4125-2022-3-22-31

Abstract: Of scientific and practical importance are studies of the relationship between the products of thermal degradation and evaporation of motor oils of various basic bases, taking into account the thermal energy absorbed by these products for the processes occurring during the oxidation of the lubricant, anti-wear properties and service life. For this purpose, a set of instruments was used, including: a device for testing the thermal stability of oils in the temperature range from 160 to 300 ° C; photometric device for direct photometry; device for determining thermal-oxidative stability; low-volume viscosimeter; device for testing rubbing materials; digital microscope; laboratory balances that makes it possible to determine the optical properties, kinematic viscosity, volatility and anti-wear properties of oxidized and temperature-controlled oils. This work establishes the general regularities of the energy connection between the processes of destruction and evaporation, which consist in the fact that the evaporation processes begin at the beginning of the temperature control of oils, and the destruction processes after the evaporation of a certain mass of oil, depending on the base, and the rate of thermal destruction processes is higher than the rate of evaporation. The relationship between the amount of thermal energy absorbed by the products of thermal destruction and evaporation is described by linear equations.

Key words: thermal destruction volatility thermal energy absorbed by the lubricant thermostating optical density the beginning of the destruction processes

Receiving date: 12.04.2022

Approval date: 07.06.2022

Publication date: 07.07.2022

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