Mohammad Ashraful Alam
University of Malaya, Malaysia
Title: Nanoparticles characterization for biodiesel in internal combustion engine
Biography
Biography: Mohammad Ashraful Alam
Abstract
A comparative morphological analysis was performed on the exhaust particles emitted from a DI diesel engine using different blending-ratios of palm biodiesel. In this study, several operating condition modes have been set under two constant loads 25% and 50% and constant speed of 2420 rpm. Biodiesel has selected due to its properties to reduce the amount of particulate matter from the exhaust emission of the engine. It has been observed by this experiment that particulate matter & particulate matter concentration are reduced with respect to diesel fuel at 25% load condition. The particle size for each fuel blends increased with an increasing the engine load. Palm biodiesel are less effective for formation of soot precursors than the diesel fuel combustion. The amount of volatile material produced from the biodiesel samples is slightly less than the volatile material produce from the diesel fuel sample. Thermogravimetric Analysis (TGA) showed that the amount of volatile material in the soot from biodiesel fuels was slightly lower (10.8%) than that of diesel fuel. On the other hand, the amount of fixed carbon from the biodiesel samples was slightly higher than that of diesel fuel. Similarly, Ash content increased with the increasing biodiesel content in the fuel blends. The amount of carbon percentage emitted from the diesel engine exhaust using bodiesel increased (by 0.85% to 10% respectively) with an increasing ratio of biodiesel to diesel fuel, while the metal composition of the exhaust gases was increasing at between 4.8% to 26.5% respectively. Finally, comparing between SEM images of diesel, B20 and B40, was found more particles in diesel exhaust and it was gradually decreased with an increasing biodiesel concentration in the diesel fuel.