Abstract
Investigation of the thermal analysis of a conventional (uncoated) diesel piston made up of Aluminum silicon alloy was carried out in this present study. Secondly, thermal analysis was performed on piston crown, coated with 20% Al2O3 & 80% Yttria Stabilized Zirconia material. TBC comes with two layers; the first layer is a bond coating with NiCoCrAlY compound. The second layer with TBC material (20% Aluminum oxide & 80% Yttria Stabilized Zirconia). The method of multilayer coating was achieved through the Air Plasma spraying technique. Using the coated piston the required temperature in the combustion chamber will be maintained. This will reduce the heat loss to the piston. This reduction in the heat loss will be used to burn the un-burnt gases thereby reducing the polluted exhaust gases. Result will be shown as the thermal efficiency of the coated piston at full load will be increased than uncoated piston and the oxides of nitrogen will be increased.
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