Performance test of dual fuel engine using octagonal with algae biodiesel

Abstract

In comparison to internal combustion engines, diesel engines are high thermal-efficient. However, the application of diesel engines is still dependent on fossil fuels. This fuel has limited availability and the effects are also very dangerous, especially its emission. Octagonal has been used as an alternative fuel to replace fossil-based diesel fuel. The purpose of this work is to explore the performance of the dual fuel engine-octagonal diesel. The performance test has been carried out by running the indirect injection engine that is modified to direct injection at 1500 rpm using four types of like diesel fuel, and diesel mixed with octagonal 2.5, 5 and 10%. The results show that there was an increasing effect of engine-indicated mean effective pressure (IMEP) value and brake-specific fuel consumption (BSFC) reduction when the engine is operated using octagonal diesel fuel blends. The emission of hydrocarbon (HC) tended to increase, while the emission of smoke and carbon monoxide (CO) decreased when the engine is operated using dual fuel-octagonal diesel.