Authors: A.A. Ryabinin

Title of the article: Research of the influence of preliminary thermostating of partially synthetic motor oil Lukoil Super 10W - 40 SG/CD on thermal energy absorbed by oxidation products

Year: 2025, Issue: 4, Pages: 50-55

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

Index UDK: 621.892.2

DOI: 10.26730/1999-4125-2025-4-50-55

Abstract: The results of testing pre-thermostatic partially synthetic motor oil Lukoil Super 10W–40 SG/CD for temperature resistance, taking into account the thermal energy absorbed by oxidation products, are presented Linear relationships were established between the decimal logarithms of the thermal energy absorbed by oxidation products from the decimal logarithm of the thermostatting time of the oil under study. Then the decimal logarithm of the thermal energy absorbed by oxidation products was determined, which determines the time of the onset of oxidation processes and the necessary accumulated potential energy. determined the decimal logarithm of thermal energy, which allows us to identify the time when the oxidation process begins. This is critically important, since accurate determination of the onset of the oxidation reaction allows us to predict the stability of the oil and its use in various applications. Using the data obtained, regression equations were established that describe the rate of onset of oxidation processes in commercial and thermostatatized oils. Regression analysis provided quantitative data on how the oxidation rate depends on thermostatting conditions and other factors such as pre-thermostat temperature and the concentration of oxidizers (degradation products) present in the system. As a result of the work, valuable analytical data was collected and analyzed, which provides important knowledge for the study of oils of various base stocks. The data is based on the results of studying the thermodynamic processes that occur in oils during thermostatting, as well as the interaction between oils and their oxidation products.

Key words: optical density thermal energy common logarithm of thermal energy thermostatting temperature energy capacity potential energy

Receiving date: 09.12.2024

Approval date: 22.06.2025

Publication date: 28.08.2025

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