Performance on multilayered nano-structured thermal barrier-coated compression ignition engine on green diesel
摘要
Compression ignition engines are widely used in various applications; however, conventional fuels contribute significantly to harmful emissions such as nitrogen oxides, particulate matter, unburned hydrocarbons, and carbon monoxide. This research aims to address these environmental challenges by enhancing engine performance and reducing emissions through the application of alumina and yttrium-stabilized zirconia thermal barrier coatings on pistons, combined with green diesel fuel. The objective is to evaluate the combustion characteristics, emissions, and overall engine performance using MATLAB-based analysis in combustion ignition mode. The green diesel fuel proposed is tested against standard fuel blends which include 10% Tucuma + 90% diesel, 10% Tungurahua + 90% diesel, and 20% Tucuma + 80% diesel. The experimental results verify that thermal barrier coatings enhance volumetric efficiency to 85% and minimize brake-specific fuel consumption to 0.33 kg kWh−1. Emissions are minimized as opposed to traditional fuels, with the emission of carbon monoxide reduced to 150 ppm, carbon dioxide to 10.5%, and nitrogen oxides to 300 ppm under different engine loads. These results affirms that the thermal barrier coatings and green diesel in enhancing overall engine efficiency at the expense of environmental degradation.