Comparative Evaluation of Diesel and Diesel/WPO (Waste Plastic Oil) for Investigating Optimum Blend to Maximize Performance and Emission Characteristics in CI Engine

This study explores the feasibility of using blends of Waste Plastic Oil (WPO) with diesel fuel as sustainable options for compression ignition (CI) engines. Through Gas Chromatography-Mass Spectrometry (GC-MS) and Fourier-Transform Infrared Spectroscopy (FTIR) analyses, diverse chemical compositions in WPO and diesel are revealed, suggesting their potential as viable fuel sources when combined in varying proportions. Experimental analysis, with a focus on diesel/WPO blends, shows significant improvements in engine performance metrics. For instance, blend W106 exhibits a remarkable 31.15% increase in peak pressure, while blend fuel 111 shows a notable 20.56% increase, both at a crank angle range of 360-364. Additionally, blending diesel with WPO leads to substantial reductions in emissions, with B30 blend demonstrating notable reductions in NOx emissions by 57% and remarkable decreases in CO emissions, registering values of 0.04 at medium and high load conditions. Under medium load conditions, B30 also shows a substantial reduction in UHC emissions, with a recorded value of

17. These findings emphasize the effectiveness of diesel/WPO blends in optimizing engine performance  while  reducing  harmful  emissions,  suggesting  promising  prospects  for environmentally friendly transportation solutions. The study underscores the importance of identifying optimal blend ratios to maximize performance and minimize emissions, contributing to the development of more efficient and sustainable fuel alternatives for CI engines.