ANALYSIS OF EMISSION OF COMPRESSION IGNITION ENGINE USING BIODIESEL AS ADDITIVE

Compression ignition (CI) engines are widely utilized in light, medium, and heavy-duty vehicles, as well as in load transport and power generation, due to their superior fuel efficiency and capability to operate under lean burn conditions. This lean burn feature significantly reduces particulate matter and noise emissions when using waste cooking biodiesel blended with diesel fuel. However, CI engines also emit harmful pollutants, including noise and particulate matter (PM), which can react with other substances, contributing to environmental issues such as ozone depletion, global warming, photochemical smog, and acid rain, ultimately disrupting the ecological balance. Meeting stringent emission regulations for CI engines poses challenges due to elevated levels of particulate matter and noise emissions. High combustion chamber temperatures and dissociation during diffusive combustion processes contribute to substantial particulate emissions. Results indicate that the noise emissions from compression ignition engines are reduced when operating on biodiesel-blended fuels compared to traditional diesel fuel. Further analysis of particulate matter emissions reveals that blending biodiesel with diesel fuel significantly decreases PM emissions in CI engines.