STUDI EKSPERIMEN PENGARUH CAMPURAN PERTALITE DENGAN BIOETANOL DARI KULIT PISANG RAJA (MUSA PARADISIACA) TERHADAP KADAR GAS BUANG SEPEDA MOTOR HONDA VARIO 125CC TAHUN 2021

Abstract

In this modern era, the amount of transportation in the world, especially motorized vehicles in Indonesia, is increasing, which results in high exhaust gas levels, so environmentally friendly fuel is needed. Therefore, alternative fuels are needed whose characteristics are similar to gasoline fuel and have low exhaust gas levels, namely vegetable fuels or bioethanol. It is hoped that the use of bioethanol can replace or be a mixture of fossil fuels and reduce environmental pollution. The aim of this research is to analyze the effect of using a mixture of pertalite and bioethanol from plantain peels on exhaust gas levels on the 2021 Honda Vario 125cc motorbike. This type of research is experimental research. The fuel used is pertalite (E0) and a mixture of bioethanol from plantain peel (Musa Paradisiaca) (E10, E20, E30, E40, E50, E60, and E70). Exhaust gas levels tested include: O₂, CO₂, CO, and HC. Testing of engine exhaust gas levels is guided by SNI 19-7118.3-2005 (idle conditions) and is continued with experimental testing starting at engine speed (2500rpm-8500rpm) with a range of 1000rpm. Data analysis uses quantitative descriptive methods. The results of exhaust gas emission testing of a mixture of pertalite fuel and plantain peel bioethanol showed that the lowest O₂ exhaust gas content was at lambda 0.94, amounting to 0.86% vol. The highest CO₂ gas content was at lambda 1.03 at 14.49%vol. The lowest CO exhaust gas content at lambda 1.10 was 0.64%vol. The lowest HC exhaust gas level was 1.11 at 176 ppm. So, it can be concluded that the best emission levels are in the E50 fuel mixture with the highest average reduction in CO emission levels of 30.43% and HC at 30.82%, while the highest increase in CO₂ exhaust gas levels is 11.42% and O₂ the lowest was 2.32% in the E10 mixture when compared to pure pertalite.

Keywords: plantain peel, bioethanol, biopertalite, exhaust gas levels