Abstract
ABSTRACT Dual fueling is a successful model in the engine combustion area which perks up the performance and emission fronts. The combined effect of using biodiesel and gas dual fueling shall address the problem associated with emissions and depletion of fossil fuels. Fuel derived from Annona squamosa seeds is a creditable biofuel, which is resulted from waste seeds. This paper characterizes the gaseous exhaust emission and performance model of a dual-fueled, direct injection diesel engine fueled with ethane as gaseous fuel and Annona squamosa biodiesel as the base and liquid fuel. Ethane is supplied with air in the intake manifold at different flow rates (five lpm and ten lpm). Ethane supply at ten lpm lowered HC emissions by seven ppm, CO by 0.4% and smoke emission by 0.2 BSU for biodiesel. In addition, ethane supply to biodiesel lowered the BSFC by 13 kg/kW-h and enhanced the efficiency by 0.4%. Hence, dual-fueling ethane is an effective technique for improving the usage of biofuels in diesel engine applications.
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