A review on thermal barrier coating for diesel engine and its characteristics studies

Abstract

Thermal Barrier Coating (TBC) on diesel engine performance was studied with a purpose of improving the thermal efficiency by decreasing Specific fuel consumption (SFC) and reducing exhaust emissions. This review paper gives a comparison of a standard diesel engine over a Low heat rejection engine. The experimental results from the various researchers show a gradual improvement in efficiency and specific fuel consumption rate. Higher operating temperature in combustion chamber gives higher efficiency which by using temperature resistant materials. Yttria-stabilized zirconia (YSZ) ceramic, ZrO2, Al2O3, Aluminium titanium are the coatings used on piston crown, cylinder liners, valves by adopting plasma spray technique. The results of LHR engine shows that, NOx emission is increased, whereas the efficiency and SFC are closer to standard engines at Low loads and noticeable improvements are seen at higher loads.