Analisis Unjuk Kerja Mesin Dengan Bahan Bakar Kombinasi Bioetanol Dan Pertalite Pada Sepeda Motor 4 Langkah

Abstract

The petroleum sourced fuel continue running low so people find technology to make efficient of the machine performance, the research is also conducted to find out the alternative fuels besides petroleum. Materials not considered before for the fuel was tested and assessed the feasibility as the fuel. Ethanol is one of the feasible fuels to be used as an alternative fuel. It is included in the alcohol derivatives by the simplest chemical formula (C2H5OH). The benefits of Ethanol use are good performance and non-flammable compared to gasoline. Besides, it is also easily produced from the mining products such as natural gas, coal, even from biomass like wood. Nevertheless, there are several things need to be considered to using Ethanol as the fuel, in which it is not recommended to be used to motor vehicle engines still in standard conditions. In addition that the characteristic of alcohol and its derivative is relatively corrosive when mixed to rubber, plastic, copper, brass, and aluminum. Then, the testing conducted will utilize a mixture composition of 15% Pertalite and 20% Ethanol by using Dyno Dynamics Chassis Dynamometer, where the machine tested must be installed on the vehicle frame complete with all vehicle accessories. The result obtained that the PertaliteEthanol mixture can increase torque, machine power, and efficiency. There was 20% in Ethanol fuel mixture compared to 15% mixture; this showed that E-20 fuel is higher in generating power compared to E-15. As a result, there are still losses, namely increasing fuel consumption