Determination of diesel engine performance and emission values using pistons and valves cr2o3 coated and different fuel additives using artificial neural networks

In this thesis study, exhaust emission and performance parameters were determined at the desired engine speed using Artificial Neural Network (YSA). By creating a mathematical model of experimental data obtained with artificial neural network, it is possible to obtain the results without having to repeat the experiments, time, human labor and cost saving. In the experiments, two different diesel engines, namely the Coated Motor (CE) and the Normal Motor (NE), have been studied. The engine, called Coated (CE), has been coated with the surfaces of the combustion chamber elements facing the combustion chamber of the piston and valves. As coating material; (Cr2O3), which is a ceramic material with thermal barrier property, has been applied by Plasma Spray method. Both of the motors are diesel fuel additives; Dibutyl Maleate 3%, 6%, 9%, Diethylene Glycol Dimethyl Ether 3%, 6%, 9%, ethylhexyl nitrate 3%, 6%, 9% and butanol 6%, 12%, 18% and NM as fuel additives, and on emission and performance parameters. Vessel density values, NOx, CO, CO2, HC, exhaust gas temperature (EGT) and specific fuel consumption (SFC), vibration data were taken in the Coated Motor (CE) and Normal Motor (NE). Subsequently, Dibutyl Maleate was mixed with 3%, 6%, 9%, Diethylene Glycol Dimethyl Ether 3%, 6%, 9%, Ethylhexyl Nitrate 3%, 6%, 9% and Butanol 6%, 12%, 18% NOx, CO, CO2, HC, smoke intensity emission values, exhaust gas temperature (EGT) and specific fuel consumption (SFC), vibration, data were obtained from the Coated Engine(KM) and Normal Engine(NM). As a result of the experiments, the obtained data was applied as an input to YSA and a mathematical model was created with the help of MATLAB Program. The validity of the program was checked and the results were compared. The interface design is done in MATLAB GUI so that YSA has a user-friendly and practical use. Chrome oxide (Cr2O3) Coated engine (CE), Uncoated engine (NE); Decrease in emission values such as HC, CO, and smoke intensity and in the values of Emissions, CO2, NOx emissions and EGT. The butanol content decreased CO, NOX, Smoke, EGT values in NE and CE. On the other hand, HC, CO2, Vibration and SFC values increased. Although the dibutyl maleate content of NE and CE showed a decrease in CO, HC, smoke density, EGT, vibration values, other parameters showed an increase. Diethylene Glycol Dimethyl Ether addition showed decrease in CO, HC, smoke density, vibration values in NE and CE, but other parameters showed an increase. Ethylhexyl Nitrate contribution showed an increase in other parameters although NE, and CE showed a decrease in CO2, smoke density, and SFC values. According to the results obtained at the end of the study, it was seen that the emission values could be reduced without the performance loss in the diesel engines with the application of TBC. In addition, it has been shown that exhaust emissions can be reduced by using various diesel fuel additives. In addition, results were obtained at low error rates without the need to re-experiment with the help of the results obtained by mathematical modeling with YSA method. In this way, it can be seen that material losses from experimental work can be saved from time and human labor.