STUDI EKSPERIMEN PENGARUH CAMPURAN PERTALITE DENGAN BIOETANOL NIRA SIWALAN (BORASSUS FLABELLIFER LINNAEUS) TERHADAP UNJUK KERJA MESIN YAMAHA AEROX 2019

Abstract

The increase in the number of motorized vehicles as public transportation has resulted in increased fuel needs while oil reserves have decreased every year. It is necessary to use sustainable new renewable fuels to reduce dependence on the use of petroleum, one of which is bioethanol. This study aims to analyze the characteristics (density, viscosity, calorific value, and flash point) of pertalite fuel (E0) and a mixture of pertalite with a mixture of siwalan sap bioethanol (E10, E20, E30, E40, E50, E60), and to analyze the effect of pertalite fuel (E0) and pertalite mixture with siwalan sap bioethanol (E10, E20, E30, E40, E50, and E60) on engine performance (torque, power, fuel consumption, average effective pressure, and thermal efficiency) . The Yamaha Aerox 2019 experimental test machine uses a dynamometer chassis. The engine performance test uses the SAE J1349 test standard with the full open throttle valve testing method with variations in engine speed from 3000rpm to 9000rpm. Meanwhile, the fuel consumption test uses SNI 7554:2010 with variations in engine speed from 2000rpm to 9000rpm. Testing the characteristics of the fuel using the standard density D1298, calorific value IKA/LEL-ITS/BK, viscosity D445, and flash point D93). Data analysis used a quantitative descriptive method. The results of testing the characteristics of the fuel (viscosity, density, and flash point) increased, but the heating value decreased. Meanwhile, the performance test results obtained the highest results on the E50 (13.19Nm torque at 6000rpm, 11.20kW power at 7000rpm, an average effective pressure of 20.13kgf/cm2 at 3000rpm, and 28.1% thermal efficiency at 4000rpm). Meanwhile, the highest fuel consumption rate is 2.69 liters/hour at 9000rpm using the E60.

Keywords: bioethanol, pertalite, biopertalite, engine performance