COMBUSTION VELOCITY CONSTANT OF GASOLINE - METANOL - (ETHANOL) MIXTURE USING THE SINGLE DROPLET COMBUSTION METHOD Alvin Damara (a), Budi Waluyo(b), Saifudin(b)
a) Student of Automotive Department, Engineering Faculty Universitas Muhammadiyah Magelang
b) Engineering Faculty of Universitas Muhammadiyah Magelang
Abstract
Methanol was one of candidates to blend or substitute the fossil fuel. The problem of separating the mixture of gasoline and methanol fuel has been solved by adding a certain amount of ethanol. However, the combustion speed characteristics have not been disclosed which is one of the important properties of SI Engine fuel. This study aims to measure the combustion velocity constant in a homogeneous mixture of gasoline - methanol - (ethanol) from previous studies. The method used in this study is the single droplet combustion method. From the test results, the burning speed of gasoline - methanol - (ethanol) fuel is faster than pure gasoline, one of which is due to the Micro-explosion phenomenon which speeds up the combustion rate. The more methanol-(ethanol) mixture causes the flame to become smaller and the micro-explosion phenomenon also easily occurs.
