ANALISIS PERFORMA MESIN SEPEDA MOTOR HONDA VARIO 125CC BERBAHAN BAKAR CAMPURAN BIOETANOL KULIT PISANG RAJA DAN PERTALITE

Abstract

Over time, the number of motor vehicles in Indonesia has been increasing. This has led to a rise in the consumption of fossil fuels, while the reserves of crude oil diminish each year. Therefore, there is a need for renewable alternative fuels to replace or blend with fossil fuels, such as bioethanol. This study aims to analyze the impact of pertalite fuel (E0) and pertalite blended with bioethanol from banana peel on the performance of a 2021 Honda Vario 125cc motorcycle engine (torque, power, fuel consumption, and brake mean effective pressure). The research employed an experimental method with variations in pure pertalite fuel (E0) and blends of pertalite with bioethanol from banana peel (E10, E20, E30, E40, E50, E60, and E70). The experimental engine test used a 2021 Honda Vario 125cc with a chassis dynamometer instrument. The testing of fuel characteristics is based on (ASTM D1298 for density, ASTM D1343 for viscosity, ASTM D93 for flash point, ASTM D240 for calorific value). Engine performance testing followed the SAE J1349 testing standards, using the full open throttle valve testing method with engine speed variations from 3000rpm to 9000rpm. Engine performance testing revealed that E40 had the most significant impact. This was evidenced by a torque of 10.54 Nm at an engine speed of 5000rpm, effective power of 10 HP at an engine speed of 8000rpm, and an average effective pressure of 10.61 bar at an engine speed of 5000rpm. The lowest fuel consumption rate was observed with E0, yielding 0.49 liters/hour at 3000rpm. The highest thermal efficiency is achieved with E40 fuel at 30.33% at 6000 rpm.

Keywords: banana peel, bioethanol, pertalite, engine performance