Analisa Performansi Mesin 1 Silinder 4 Langkah dengan Bahan Bakar Biogasoline dari Limbah Plastik LDPE Menggunakan Perbandingan Konsentrasi B10, B20, B30 dan B40

Abstract

The increasing population and economic growth in Indonesia have significantly raised the amount of plastic waste, posing a substantial environmental problem. Various types of plastics, including LDPE, are commonly used in everyday items such as packaging and containers. The uncontrolled disposal and burning of plastic waste contribute to environmental pollution and health hazards. One promising solution to mitigate the impact of plastic waste is pyrolysis, a process that thermally decomposes polymer materials in the absence of oxygen, yielding valuable products like oil, gas, and charcoal.This study investigates the performance of a single-cylinder, four-stroke engine using biogasoline derived from LDPE plastic waste through pyrolysis. The research compares different concentrations of biogasoline blends (B10, B20, B30, and B40) with pure gasoline. Key performance metrics analyzed include power, torque, specific fuel consumption, thermal efficiency, and exhaust emissions (HC, CO, CO2, and O2).The results show that the pyrolysis process effectively converts LDPE plastic waste into biogasoline. The performance tests indicate that biogasoline blends can serve as a viable alternative fuel, with varying impacts on engine efficiency and emissions depending on the blend ratio. The study provides insights into the potential of using plastic waste-derived biogasoline to reduce plastic pollution and dependence on conventional fuels.