Evaluating the combustion performance of plastic oil in an Otto engine: A comparative analysis with premium fuel

Abstract

This study examines the performance evaluation of plastic oil combustion compared to premium fuel in an Otto engine, focusing on the application of pyrolysis technology for converting plastic waste into oil. The analysis considers parameters such as the lower heating value (LHV) of the fuels, combustion characteristics observed through spark plug electrode examination, RPM requirements for power output, torque generation, and specific fuel consumption (SFC). The results show that plastic oil derived from PP has a slightly lower LHV compared to premium fuel. Visual inspection reveals cleaner combustion with plastic oil, indicating potential advantages in terms of reduced carbon build up. The engine requires a higher RPM to achieve the same power output with plastic oil compared to premium fuel. However, plastic oil generates higher torque at the same power output, suggesting better combustion efficiency. The SFC is highest for premium fuel under low-load conditions. The findings underscore the potential of plastic oil as a sustainable and environmentally friendly alternative fuel, derived from the conversion of plastic waste using pyrolysis technology. Further research and optimization are needed to enhance the fuel quality and overall performance of plastic oil.