CONCLUSION
Experimental investigation of the effect of ceramic coating on petrol engine performance and exhaust emissions was conducted.
œ The TBC, using ZrO2 and TiO2 applied on the piston crown of internal combustion engine showed some improvement in fuel economy
œ The unburned hydrocarbon concentration was increased mostly at low engine speed or low engine power output with a TBC piston engine.
œ CO emission and HC were lower in the coated engine.
œ The specific fuel consumption shows a 1% decrease in the engine with TBC
œ Significant increase in engine performance was observed.
œ The performance of thermally coated engine was found to be satisfactory.
œ The NOX and CO2 can be reduced by using catalytic converter or EGR systems.