Abstract The present work is dedicated to the experimental analysis on the influence of fuel borne additives on ternary fuel blend operated in a single cylinder DI diesel engine. Alumina (Al2O3) nanoparticles were chosen as fuel additives at dosing levels of 10 ppm, 20 ppm and 30 ppm respectively and the ternary fuel (TF) is prepared by blending 70% diesel, 20%Jatropha biodiesel and 10% ethanol. Performance characteristics like brake thermal efficiency (BTE) and brake specific energy consumption (BSEC), emission characteristics like HC, CO, NOx and smoke along with combustion characteristics like cylinder pressure, HRR (Heat release rate) and CHRR (Cumulative heat release rate) were considered for analysis. Based on experimentation, it is observed that, TF blended with 20 ppm alumina nano additive (TF20) resulted in higher BTE and lowered BSEC by 7.8% and 4.93%, lowered HC, CO, NOx and smoke emissions by 5.69%, 11.24%, 9.39% and 6.48% in comparison with TF. Moreover, TF20 resulted in higher cylinder pressure, HRR and CHRR of about 72.67 bar, 76.22 J/oCA and 1171.1 J respectively which are higher than diesel and TF. Hence, it is concluded that addition of 20 ppm alumina nano additive in TF can enhance the engine performance and combustion as well as lower the exhaust pollutants simultaneously.

中文翻译：

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Al2O3nano 添加剂在单缸柴油发动机运行的三元燃料（柴油-生物柴油-乙醇）混合物中的影响：性能、燃烧和排放特性

摘要 目前的工作致力于燃料添加剂对单缸DI柴油机运行的三元混合燃料影响的实验分析。选择氧化铝 (Al2O3) 纳米颗粒作为燃料添加剂，剂量分别为 10 ppm、20 ppm 和 30 ppm，三元燃料 (TF) 是通过混合 70% 柴油、20% 麻风树生物柴油和 10% 乙醇制备的。制动热效率 (BTE) 和制动比能耗 (BSEC) 等性能特征，HC、CO、NOx 和烟雾等排放特征以及气缸压力、HRR（放热率）和 CHRR（累积放热率）等燃烧特征被考虑进行分析。根据实验，观察到，与 TF 相比，TF 与 20 ppm 氧化铝纳米添加剂 (TF20) 混合可产生更高的 BTE，并将 BSEC 降低 7.8% 和 4.93%，将 HC、CO、NOx 和烟雾排放量降低 5.69%、11.24%、9.39% 和 6.48% . 此外，TF20 导致更高的气缸压力、HRR 和 CHRR，分别约为 72.67 bar、76.22 J/oCA 和 1171.1 J，高于柴油和 TF。因此，可以得出结论，在TF中添加20 ppm氧化铝纳米添加剂可以提高发动机性能和燃烧，同时降低尾气污染物。