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.

摘要

双燃料是发动机燃烧领域的成功模式，可提升性能和排放前沿。使用生物柴油和天然气双燃料的综合效应应解决与排放和化石燃料消耗相关的问题。来自番荔枝种子的燃料是一种可靠的生物燃料，它是由废弃种子制成的。本文描述了以乙烷为气体燃料和番荔枝生物柴油为基础和液体燃料的双燃料直喷柴油发动机的废气排放和性能模型。乙烷在进气歧管中以不同的流速（5 lpm 和 10 lpm）供应。10 lpm 的乙烷供应使生物柴油的 HC 排放量降低了 7 ppm，CO 排放量降低了 0.4%，烟气排放量降低了 0.2 BSU。此外，向生物柴油供应乙烷使 BSFC 降低了 13 kg/kW-h，并将效率提高了 0.4%。因此，双燃料乙烷是提高生物燃料在柴油发动机应用中使用的有效技术。