Department of Mechanical Engineering, Dhanalakshmi College of Engineering, Manimangalam, Chennai - 601 301, Tamil Nadu, India.
Research Scholar, Department of Automobile Engineering, Madras Institute of Technology Campus, Anna University, Chennai, Tamil Nadu, 6000 44, India.
Environ Sci Pollut Res Int. 2019 Sep;26(26):27362-27371. doi: 10.1007/s11356-019-05773-z. Epub 2019 Jul 19.
In the present scenario, the utilization of petroleum fuel is expanding forcefully worldwide in the vitality store and plays a highly hazardous role in the ecological system. Biofuel stands out among the most tenable keys for this issue. The lemongrass oil is used as a biofuel because of low density and viscosity when compared with diesel. The lemongrass oil is extracted by steam distillation process. In the present investigation, partially stabilized zirconium, due to its higher thermal conductivity, is selected as coating material. The top surface of the piston and the inlet and exhaust valves are coated up to the preferred thickness of 500 μm by the plasma spray technique. The lemongrass emulsion fuel is prepared in the proportion of 94% of lemongrass oil, 5% of water, and 1% of surfactant span 80. The nanoparticles of cerium oxide were used with lemongrass oil (LGO) nano-emulsion in the measurement of 30 ppm. The four-stroke diesel engine execution, ignition, and the outflow extent were contrasted in the diesel and lemongrass oil (LGO) compared with the base diesel engine. The performance characteristic curves of lemongrass-cerium oxide nano-emulsion fuel show the increase in brake thermal efficiency of 17.21% when compared with the mineral diesel fuel. The emission characteristics of lemongrass-cerium oxide nano-emulsion fuel show a drop in hydrocarbon and carbon monoxide emission by 16.21% and 15.21%, respectively, when compared with base diesel fuel and also there is a decrease in oxides of nitrogen and smoke emission by 24.1% and 6.3%, respectively, when compared to mineral diesel fuel.
在当前的情况下，全球范围内对石油燃料的利用正在大力扩展，对生态系统造成了高度危害。生物燃料是解决这个问题的最可行的方案之一。与柴油相比，柠檬草油的密度和粘度较低，因此可用作生物燃料。柠檬草油是通过蒸汽蒸馏工艺提取的。在本研究中，由于其较高的导热性，部分稳定的氧化锆被选为涂层材料。等离子喷涂技术将活塞顶部表面、进气阀和排气阀涂覆至优选的 500μm 厚度。通过将柠檬草油（LGO）纳米乳液中的纳米氧化铈与柠檬草油（LGO）纳米乳液混合，制备柠檬草乳液燃料，其中柠檬草油占 94%，水占 5%，表面活性剂占 1%。在测量中使用了 30ppm 的纳米氧化铈。与基础柴油发动机相比，在柴油和柠檬草油（LGO）中比较了四冲程柴油发动机的执行、点火和排放程度。柠檬草-氧化铈纳米乳液燃料的性能特性曲线显示，与矿物柴油相比，制动热效率提高了 17.21%。与基础柴油燃料相比，柠檬草-氧化铈纳米乳液燃料的排放特性显示出碳氢化合物和一氧化碳排放量分别降低了 16.21%和 15.21%，而氮氧化物和烟尘排放量分别降低了 24.1%和 6.3%。
