Experimental analysis of C.I. engine using pyrolyzed plastic oil blended with alumina nano additive

Abstract

The aim of the research work is to study the efficiency of Al2O3 nanoparticle as a blending agent and to test the performance characteristics of pyrolyzed plastic oil in an IC engine at EGR conditions. Al2O3 nanoparticle was synthesized, and discarded plastic was pyrolyzed to prepare plastic oil. Different blends of plastic pyrolyzed oil (P10 to P40) blended using the synthesized nano Al2O3 with commercial diesel were employed in the study. Various factors like Brake Thermal Efficiency (BTE), Brake Mean Effective Pressure (BMEP), Indicated Thermal Efficiency, Mechanical Efficiency, emissions of Carbon Monoxide (CO), Carbon-di-oxide (CO2) and Nitrogen Oxide (NOx) are analyzed and reported herein. A notable reduction in emission was observed with the application of nano additive blended fuel. The results confirmed that the emission of CO was reduced using the P40 blend with 50 ppm of nano additive. In the P30 + EGR blend, a drastic reduction in NOx emission was also observed with the same amount of Al2O3 nano additive. CO2 has been cut down when P30 blend with 50 ppm of Al2O3. The remarkable calorific value, density and viscosity of P30 blend had resulted in highest Brake thermal efficiency (32.11%) and Brake Mean Effective Pressure (6.3 Bar). The P30 + EGR blend resulted in high indicated thermal efficiency in comparison with other blends because of the reduced heat loss in the blend. Diesel showed the highest Mechanical efficiency because of the high ignition delay when compared with the other blends.