Emission Characteristic in CI Engines Using Zirconium Porous Medium In Piston Head

The present heterogeneous combustion engine results in incomplete combustion and uneven heat distribution of the engine cylinder. This results in high NOx formation, CO and unburned hydrocarbon emissions (UHC). The emissions can only be improved by catalytic treatments but it results in a high cost. So, we have introduced Porous Medium (PM) to overcome this above problem. The main objective of using porous medium in IC engines is to achieve homogeneous combustion, it leads to lean burn combustion due to increased heat transfer co efficient, high heat capacity and large surface area of porous medium. So that the temperature inside the cylinder decreases resulting in drop of nitrogen oxides and carbon monoxides formation.