EFEK PEMANASAN CAMPURAN BIODIESEL DAN MINYAK SOLAR TERHADAP KONSUMSI BAHAN BAKAR PADA BOILER

Abstract

Along with the government’s mandatory regardings biofuel utilization in industrial equipments, the testing of biodiesel use in the boiler is developed. In anticipation of physical properties of biodiesel such as higher viscosity and density and lower calorific value than diesel fuel, it is important to make several attempts, one of them is by heating the fuel blends. Beside emissions and efficiency, one important performance indicators which considered in boiler operations is the fuel consumption. This study examined the use of biodiesel - diesel oil blends from the composition of biodiesel 10%, 20%, 30%, and 100 % in a fire tube boiler with pressure of 3 bars. Temperature variation is conducted by installing a oil heater in the fuel tank, which temperature set at intervals of 40-70 ^oC. The results showed fuel consumption is not linear with the increase of  heating temperature. For all the fuel blend compositions, the lower fuel consumption occured at 60 ^oC of heating.

Keywords :  biodiesel, fuel consumption,  heating fuel, viscosity, water content