基于机器学习的柴油发动机性能分析,使用Fe3O4纳米添加剂在sterculia foetida生物柴油混合物中
Srinivasarao Mylapalli1, Yaswanth Kumar Reddy Maddi1, Joga Rao Bikkavolu2
1Department of Mechanical Engineering, Sanketika Vidya Parishad Engineering College, Visakhapatnam, Andhra Pradesh, India.
Scientific reports
|November 7, 2025
概括
将磁石纳米颗粒添加到sterculia foetida methyl ester (SME) 柴油混合物中,可以提高发动机效率并减少有害排放. 机器学习模型准确地预测了这些性能改进,支持可持续燃料技术.
科学领域:
- 可持续燃料技术 可持续燃料技术
- 纳米粒子在发动机中的应用.
- 燃烧科学 燃烧科学
背景情况:
- 斯特尔库利亚叶酸甲基 (SME) 是柴油发动机的潜在生物燃料.
- 纳米粒子添加剂可以改变燃料特性和发动机性能.
- 优化纳米粒子分散对于有效的燃料增强至关重要.
研究的目的:
- 研究Fe3O4 (磁铁) 纳米粒子添加剂与SME混合时对柴油发动机性能,燃烧和排放的影响.
- 为了评估不同Fe3O4度 (50,75,100 ppm) 在SME-柴油混合物中的有效性.
- 开发和验证一种机器学习模型,用于预测这些纳米燃料混合物的发动机性能和排放特性.
主要方法:
- 中小企业是通过转化生产的.
- 表面修饰的Fe3O4纳米粒子 (NP) 用超声波在SME中分散.
- 发动机测试使用纯柴油,SME25 (25%SME,75%柴油) 和不同度Fe3O4的SME25进行.
- 开发了一个机器学习模型来预测性能和排放.
主要成果:
- 制动热效率 (BTE) 提高了6.69%,特定燃油消耗 (SFC) 减少了7.23%,增加了100ppmFe3O4.
- 气压力 (CP) 和热释放率 (HRR) 等燃烧参数分别增加了4.46%和24.21%.
- 通过SME + 100Fe混合物观察到CO (23.92%),HC (22.42%),NOx (5.38%) 和烟雾排放 (3.61%) 的显著减少.
- 机器学习模型显示了高的预测准确性 (R值从0.9973到0.99995).
结论:
- 中小企业混合物中的Fe3O4纳米添加剂明显提高了柴油发动机的性能并减少了排放.
- 机器学习的整合为建模燃料性能提供了准确和数据效率高的方法.
- 这种方法显示了推进可持续燃料技术的巨大潜力.
相关概念视频
Turnover Number and Catalytic Efficiency
19.9K
The turnover number of an enzyme is the maximum number of substrate molecules it can transform per unit time. Turnover numbers for most enzymes range from 1 to 1000 molecules per second. Catalase has the known highest turnover number, capable of converting up to 2.8×106 molecules of hydrogen peroxide into water and oxygen per second. Lysozyme has the lowest known turnover number of half a molecule per second.
Chymotrypsin is a pancreatic enzyme that breaks down proteins during digestion....
Chymotrypsin is a pancreatic enzyme that breaks down proteins during digestion....
19.9K
Internal Combustion Engine
2.5K
The internal combustion engine is a heat engine that uses the byproducts of combustion as the working fluid instead of using a heat transfer medium to transfer heat. The combustion is done in a way that produces high-pressure combustion products that can be expanded through a turbine or piston to create work. Internal combustion engines can again be categorized into three kinds: (1) spark ignition gasoline engines, most commonly used in automobiles, (2) compression ignition diesel engines that...
2.5K
Otto and Diesel Cycle
3.5K
An Otto engine is a four-stroke engine that uses a mixture of gasoline and air as the working fuel. The fuel is injected into the cylinder, and the piston is moved completely down so that the cylinder is at maximum volume. By moving the piston up, adiabatic compression takes place. The spark plug ignites the gasoline-air mixture, and the burning fuel adds heat to the system at a constant volume. The heated mixture expands adiabatically and gets further cooled by exhausting heat, and this cyclic...
3.5K


