Authors: A.A. Ryabinin, N.V. Geil, K.A. Bolshakov

Title of the article: Method of predicting indicators of thermal-oxidative stability of motor oils

Year: 2023, Issue: 1, Pages: 42-51

Branch of knowledge: 2.5.9. Methods and devices for monitoring and diagnosing materials, products, substances and the natural environment

Index UDK: 550.8.05

DOI: 10.26730/1999-4125-2023-1-42-51

Abstract: The article presents a method for predicting indicators of thermal-oxidative stability, including the optical density and volatility of motor oils based reduced temperature information. An analytical model is proposed for calculating the indicators of thermal-oxidative stability based on data from two temperatures for the third temperature, as well as determining the temperature range of engine oil performance, including the temperatures of the onset of oxidation and evaporation processes and the critical temperatures of these processes, making it possible to compare the oils and to select more heat-resistant ones. This method will expand the information content of the use in the processing of geo-resources, as the service life of motor oils increases, thereby increasing the environmental component when using geo-resources, it is possible to use motor oil for a longer time without losing its declared properties. It provides as well for the use of temperature control device, photometric devices and electronic scales, allows you to expand information about the quality of motor oils, including the temperature of the start of evaporation processes, the critical temperatures of these processes and the temperature range of application. A linear dependence of the decimal logarithm of the temperature control time during oxidation and evaporation of the studied engine oil on temperature has been established, which makes it possible to predict the decimal logarithms of the temperature control time of the oxidation and evaporation processes for any temperature, and the calculation of antilogarithms determines the temperature control time.

Key words: temperature control optical density volatility analytical calculation model temperatures of the beginning of oxidation and evaporation processes critical temperatures of oxidation and evaporation processes temperature range of lubricating oil performance georesources ecological component of georesources

Receiving date: 03.11.2022

Approval date: 15.01.2023

Publication date: 30.03.2023

CITE DOWNLOAD