Experimental analysis and investigation of the performance of 3Al2O3·2Sio2·La2O3 ceramic-coated piston
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In IC – Internal Combustion engines, two third of the useful energy produced is lost due to inefficient cooling and exhaustsystems. Thus the efficiency of any IC engine can be effectively improved by reducing the energy lost in exhaust and cooling. Thermal Barrier Coatings -TBC of engine components has been reported to the best alternative to improve the emission,performance and combustion characteristics. In this study, Mullite - Lanthanum oxide (ML) ceramic composite has beenproposed as TBC coatings in IC engine. In addition, Nickel – Chromium (NiCr) ceramic composite as adhesive layer has beenused. The microstructural study – SEM and FTIR of the ceramic coatings were evaluated. The performance characteristicslike BTE and emission characteristics like HC, CO, smoke emission of the engine at various operating loads were studied ina single cylinder. The results indicate that the ppm values reduced by 23% for HC; CO emission reduced by 50%; reducedsmoke emission values by 23% and augmented BTE values.
Abstract
In IC – Internal Combustion engines, two third of the useful energy produced is lost due to inefficient cooling and exhaustsystems. Thus the efficiency of any IC engine can be effectively improved by reducing the energy lost in exhaust and cooling. Thermal Barrier Coatings -TBC of engine components has been reported to the best alternative to improve the emission,performance and combustion characteristics. In this study, Mullite - Lanthanum oxide (ML) ceramic composite has beenproposed as TBC coatings in IC engine. In addition, Nickel – Chromium (NiCr) ceramic composite as adhesive layer has beenused. The microstructural study – SEM and FTIR of the ceramic coatings were evaluated. The performance characteristicslike BTE and emission characteristics like HC, CO, smoke emission of the engine at various operating loads were studied ina single cylinder. The results indicate that the ppm values reduced by 23% for HC; CO emission reduced by 50%; reducedsmoke emission values by 23% and augmented BTE values.
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