Pengaruh Variasi Penambahan Bahan Bakar Pertalite dengan Ethanol terhadap Performa Mesin SI (Spark Ignition) Fi-125cc 4 Langkah 1 Silinder
Abstract
Ethanol fuel has similarities with Pertalite which has a value of RON (Research Octane Number) are 90. It research the performance characteristics of torque, power, specifi c fuel consumption and eff ective pressure on Spark Ignition Engine FI-125cc 4 step 1 cylinder which it uses the mixture of Ethanol and Pertalite. The fuel mixture characteristics of Pertalite and Ethanol will perform the test of machine with the variation of ethanol mixture by 5%, 10%, 15%, and 20% and engine rotation 2000, 2500, 3000, 3500, 4000, 4500 , 5000, 5500 rpm. From this case shows that the larger the addition of ethanol at 15% Pertalite it will produce a good engine performance such as torque, power, specifi c fuel consumption, eff ective pressure and thermal effi ciency and optimal thermal effi ciency of 8.7% Pertalite on engine rotation 3000-3500rpm, otherwise if the larger addition of ethanol at 20% will reduce the calorifi c value so that the energy that can be released the fuel also decreased, resulting in the resulting engine performance also decreased.
Moraref