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首页> 外文期刊>Energy Conversion & Management >Experimental investigation on combustion-performance-emission characteristics of nanoparticles added biodiesel blends and tribological behavior of contaminated lubricant in a diesel engine
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Experimental investigation on combustion-performance-emission characteristics of nanoparticles added biodiesel blends and tribological behavior of contaminated lubricant in a diesel engine

机译：纳米粒子燃烧 - 性能排放特性的实验研究柴油机中污染润滑剂的生物柴油混合物和摩擦学行为

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摘要

This present investigation focuses on combustion-performance-emission characteristics of cerium oxide (CeO2) added palm biodiesel blends in a single cylinder diesel engine. Experiments are conducted in a natural aspirated single cylinder diesel engine at constant speed and varying load (low, medium and full). The experimental result reveals that the addition of CeO2 nanoparticles (50, 100, and 150 ppm) to palm biodiesel blends enhanced brake thermal efficiency (BTE) with reduction in brake specific energy consumption (BSEC) due to improved ignition characteristics of the modified blends. Maximum reduction of CO, HC and NOx emissions have been observed 50, 48.45, and 11.1% at full load respectively. Later on, friction and wear study has been conducted to investigate tribological behavior of cylinder liner-piston materials under lubrication (using contaminated lubricant). The whole friction and wear study has been performed on pin-on-disc tribometer at different speed (300, 400, and 500 rpm) and load (10, 30, and 50 N). The dilution of CeO2 added biodiesel blends with the lubricant resulted low coefficient of friction (COF) and specific wear rate. At varying speed of 300, 400, and 500 rpm: 6.07, 8.5, and 10.9%; and at varying load of 10, 30, and 50 N: 6.07, 10.96, and 11.77% lower average COF have been observed respectively for nanofuels contaminated lubricant compared to diesel contaminated lubricant. Similarly, 7.94, 30, & 28.06% and 7.94, 30.33, & 17.04% lower specific wear rate at varying speed and load have been observed respectively for nanofuels contaminated lubricant.
机译：本现有研究侧重于氧化铈（CEO2）在单个汽缸柴油发动机中添加棕榈生物柴油混合物的燃烧 - 性能 - 排放特性。实验在天然吸气的单缸柴油发动机中以恒定的速度和不同的负载（低，介质和满）进行。实验结果表明，由于改进的共混物的改善的点火特性，将CeO2纳米颗粒（50,100和150ppm）与棕榈生物柴油添加到棕榈生物柴油中的增强的制动热效率（BTE）增强了增强的制动热效率（BSEC）。在满负荷分别观察到50,48.45和11.1％的最大减少CO，HC和NOx排放。后来，已经进行了摩擦和磨损研究，以研究润滑下圆柱衬里 - 活塞材料的摩擦学行为（使用污染的润滑剂）。在不同速度（300,400和500 rpm）和负载（10,30和50n）的销上盘式摩擦计上进行了整个摩擦和磨损研究。 CeO 2的稀释性与润滑剂的生物柴油共混物导致低摩擦系数（COF）和特定磨损率。在300,400和500 rpm的不同速度下：6.07,8.5和10.9％;对于纳福尔斯污染的润滑剂，分别观察到10,30和50n：60.6.07,10.96和11.77％的下层平均COF的不同负载。同样，对于纳米纺丝污染的润滑剂，分别观察到7.94,30和28.06％和7.94,30.33和7.94,30.33和17.04％较低的特定磨损率。

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