Evaluation of the efficiency of using fullerene compositions in engine oils during the operation of internal combustion engines
Abstract
An analysis of the application of fullerenes and fullerene additives to lubricants to improve antiwear and antifriction properties is presented. It was shown that fullerene additives do not dissolve (disperse) in liquid technical oils. To improve the solubility of fullerns, it is necessary to first dissolve them in high oleic vegetable oils, and then add the resulting composition to technical oils (petroleum, semi-synthetic, synthetic). From the analysis of the presented material, it was concluded that the use of fullerene compositions in technical lubricants is a promising direction for the operation of internal combustion engines (ICE). This will reduce friction losses in the tribosystems of the ICE during operation. Reducing friction losses will lead to fuel economy, while reducing the wear rate of tribosystem materials, which will contribute to an increase in resource.
The purpose of this work is an experimental study of the effectiveness of the use of fullerene compositions in engine oils and the degree of their influence on the effective power and specific fuel consumption of a diesel engine. Fullerene composition mass 100 gram per kilogram of engine oil. Fullerene composition - 0,75 gram fullerenes and 99,25 gram vegetable rapeseed oil. The total mass of the fullerene composition 100 gram introduced in 1000 gram base engine oil М-10G2к, (10% masses).
The dependences of the effective power and specific fuel consumption when using a fullerene composition in engine oil have been obtained experimentally (composition - 0,75 gram fullerenes and 99,25 gram vegetable rapeseed oil, 10% masses). It has been experimentally established that the use of motor oil with a fullerene composition makes it possible to obtain the following indicators during testing of the D-243 diesel engine at the stand:
- the effective diesel power has increased from 60 kW to 64.56 kW, which is 7,5%.
- specific fuel consumption decreased from 220 g/kW*hour to 186 g/kW*hour, which is 15,45%.
On the basis of the obtained experimental results, it was concluded that the use of fullerene compositions in motor oils makes it possible to reduce the specific fuel consumption during the operation of vehicles without reducing the effective power.
The verification of the correspondence of the obtained results of bench experiments to the normal distribution law, reproducibility from experiment to experiment and homogeneity. It was found that the results of experiments in determining the effective power and specific fuel consumption from experiment to experiment are reproducible and homogeneous.
