EFEK PEMANASAN TERHADAP VISKOSITAS DAN DENSITAS BIODIESEL

Abstrak

B20 biodiesel fuel is a mixture of petroleum diesel mixed with 20% vegetable (palm) oil. The composition of the mixture affects its properties, especially viscosity, density, surface tension and sauter mean diameter. The research was conducted to determine
the impact of increasing temperature on these properties. By applying several experimental methods including the ASTM D 445-95 method, the Pycnometer method, the Du Noüy Ring method, and the calculation with the Sauter Mean Diameter (SMD) formula. The biodiesel test was carried out with variations in temperature of 30oC, 40oC, 50oC, 60oC and 70oC at room conditions of 24.0oC temperature and 71% humidity. The results of the study prove that the increase in biodiesel temperature affects the decrease in viscosity, density, surface tension and sauter mean diameter.