The effect of n-butanol to waste plastic oil fuel blends utilization on engine emissions of a single cylinder diesel engine

This research study measured the engine performance and emissions using fuel blends by pyrolysis of waste plastic oil compared with waste plastic oil mixed with n-butanol. Nitrogen oxide emission is the most harmful emission from the conventional diesel engines. This aims to investigate the effect of n-butanol blended to waste plastic oil on engine emission from a Single-Cylinder Diesel Engine. The 4 sample test fuels are prepared in the ratios of waste plastic oil to n-butanol 60/40, 70/30, 80/20 and 100% waste plastic oil (Bu40, Bu30, Bu20, WPO) and then tested in the engine. Tests were carried out in a single cylinder, unmodified, and difference engine speed (2500-3000 rpm) by using 4 test fuels. The test results demonstrated that the fuel consumption of waste plastic oil blends were higher than waste plastic oil. Amount of nitrogen oxides emissions decreased but CO emission was higher with the rising the content of n-butanol in the fuel blends.