Department of Mechanical Engineering, SRM University, Kattankulathur, 603203, India.
Department of Automobile Engineering, SRM University, Kattankulathur, 603203, India.
Environ Sci Pollut Res Int. 2020 Aug;27(24):29703-29716. doi: 10.1007/s11356-019-06097-8. Epub 2019 Aug 13.
Stringent emission norms impose challenges to original equipment manufacturer (OEM) in reducing diesel engine emissions. Implementing renewable fuels as alternative energy sources in diesel engines leads to increased emission levels particularly NO. In this work, performance, combustion, and emission parameters from a diesel engine powered with grapeseed oil biodiesel (GSBD) was investigated. Nano additive emulsions of cerium oxide (CeO) and zinc oxide (ZnO) at 100 ppm each were added to grapeseed oil biodiesel. To enhance the NO reduction task further, an advanced technology called selective catalytic reduction (SCR) system was used. With easy availability of aqueous urea, careful injection, and distribution of the reductant solution, a paradigm change was brought about in NO reduction technology. The experiments were carried out with and without SCR for better understanding and investigation. The percentage reduction of NO emission by adding cerium oxide and zinc oxide emulsion blends were 4.19% and 13.13%, respectively. The overall reduction in NO emission were 74.16% and 80.06% with SCR for cerium oxide and zinc oxide emulsion blends. The research conclusions make grapeseed oil biodiesel conceivable as an effective alternate fuel for diesel engines without any engine modifications.
严格的排放标准给原始设备制造商（OEM）在降低柴油机排放方面带来了挑战。在柴油机中使用可再生燃料作为替代能源会导致排放水平特别是 NO 增加。在这项工作中，研究了由葡萄籽油生物柴油（GSBD）驱动的柴油机的性能、燃烧和排放参数。在葡萄籽油生物柴油中添加了 100ppm 氧化铈（CeO）和氧化锌（ZnO）纳米添加剂乳液。为了进一步提高 NO 还原任务的效率，采用了一种称为选择性催化还原（SCR）系统的先进技术。由于水合尿素的易得性，还原剂溶液的仔细注入和分配，NO 还原技术发生了范式转变。进行了有和没有 SCR 的实验，以进行更好的理解和研究。添加氧化铈和氧化锌乳液混合物可将 NO 排放量减少 4.19%和 13.13%。使用 SCR 时，氧化铈和氧化锌乳液混合物的 NO 排放量总体减少了 74.16%和 80.06%。研究结论表明，葡萄籽油生物柴油可以作为柴油机的有效替代燃料，而无需进行任何发动机改装。
