| dc.description.abstract | This study aims to utilize LDPE plastic waste, such as gallon caps, through
pyrolysis to reduce waste, manage environmental pollution, and produce
biogasoline as a fuel mixture for stationary Otto engines. The specific objectives
include: (1) analyzing the pyrolysis results of LDPE plastic with pure gasoline at
ratios of B0 (100% Pertalite), B5 (95% Pertalite: 5% Biogasoline), B15 (85%
Pertalite: 15% Biogasoline), and B25 (75% Pertalite: 25% Biogasoline); (2)
evaluating the performance of the Otto engine, including torque, power, specific
fuel consumption, thermal efficiency, air-fuel ratio, and temperature; and (3)
measuring exhaust gas emissions (CO, CO2, O2, HC). The study results show that
B25 fuel has the best density of 0.753 g/ml (1.5% higher than Pertalite), the best
viscosity of 0.606 mm²/s (50% higher), and the highest calorific value of 50,872
J/g (8.4% higher). The highest power was achieved with B15 at a load of 500
watts, producing 415 watts, while the best thermal efficiency was found with B5,
which decreased by 2.2% compared to pure Pertalite (B0). The lowest carbon
monoxide (CO) emission, 0.31%, was produced by B25 at a load of 400 watts,
whereas the highest carbon dioxide (CO2) emission, 12.0%, was produced by B15
at the same load. Biogasoline from LDPE pyrolysis has the potential to be an
alternative fuel with good performance and lower environmental impact. This
research provides an innovative solution for managing plastic waste. | en_US |
