Middle East Technical University (Turkey) New Study of METU to Determine End-of-Life of Machine Oils

Department of Chemistry Asst. Prof. Hasan Tarık Baytekin and his team, engine oil, which is important for the smooth and long-lasting operation of machines developed a technique that measures its oxidation online. Applied Surface “Online lubricant degradation monitoring using contact charging of polymers/Online using contact electrification of polymers lubricant degradation monitoring” and reducing environmental pollution as well as offering an economical control technique.


Machines with moving parts, such as engines, for a long time and to prevent friction and wear during operation in order to work effectively In order to fatten. But oxidation of oils during use, change of chemical and physical properties, lubrication performance deterioration. On the other hand, the recommendations of engine oil manufacturers “change time” is usually used to help estimate the life of oil products is based. This predictive calculation is based on the engine changing, especially when driving in the city. their temperature and speed are often inaccurate. Although the oils for various chemical and physical properties that change during operation for monitoring oil status, although different analysis methods have been developed to a cost-effective, easy-to-manufacture, machine-applicable method the need for it continues.


It is more accurate to monitor the condition of the oil as the oil is used. will be an economical and environmentally friendly method, and timely detection of oil deterioration The need for new methods that are more practical than the existing methods Dr. Baytekin and his team for monitoring fat degradation developed a simple method. The analyzes made by this method are not allowed to be applied to other analyzes. it shows that the oil begins to oxidize without the need. Dr. Baytekin and The team’s TÜBİTAK-supported research shows that the oxidation of motor oils is not affected by the friction produced by weaving contact cellulose into common synthetic polymers that changes in electrification signals can be monitored by following reveals. This new online fat oxidation monitoring method is economical, in addition to preventing losses, 100 liters of clean water from a drop of waste oil because of its pollution, it has the potential to help protect the environment.

Together with his team, Dr. Hasan Tarık Baytekin, Assistant Professor at the Department of Chemistry, has developed a new technique that monitors the oxidation of engine oils online, which is essential for the proper and long-lasting operation of machines. The study, published in Applied Surface Science with the title “Online Lubricant Degradation Monitoring Using Contact Charging of Polymers,” presents an economical tracking method that also reduces environmental pollution.


For machines with moving parts to work effectively for a long time, they must be lubricated to decrease friction and reduce wear. However, oxidation of oils and changes in their chemical and physical properties during their use cause deterioration in lubrication performance. Furthermore, the recommended “change time” for the lubricant provided by the lubricant manufacturers is usually based on a vague estimate of the end-of-life of the oils. This estimation is often inaccurate, especially with varying engine temperatures and speeds, such as driving in a city. Although various analysis methods have been developed focusing on the different chemical and physical properties of oils changing during operation, there is still a need for a cost-effective, easy-to-manufacture, and machine-applicable method to monitor the condition of oils.


Based on the fact that it would be more accurate, more economical, and more eco-friendly to be able to track the condition of the oil as it is used, and also considering the need for new and more practical methods to detect oil deterioration in time, Dr. Baytekin and his team developed a simple technique to monitor degradation. The analyses based on this method successfully indicate when the oil begins to oxidize without needing further analysis. The Facility TÜBİTAK-funded research study of Dr. Baytekin and his team reveals that the oxidation of engine oils can be monitored by tracking the changes in the triboelectric signals produced by tapping the oil-wet cellulose to common synthetic polymers. In addition to preventing economic losses, this new online oil oxidation monitoring technique also has the potential to help protect the environment since a single drop of lubricant oil can contaminate 100 liters of water.


The full article can be accessed at https://doi.org/10.1016/j.apsusc.2022.152593.