基于先进的ML算法,使用油纳米颗粒与尼姆油生物柴油预测柴油发动机的性能和排放特征
M S Aswathanrayan1, N Santhosh2, Srikanth Holalu Venkataramana3
1Department of Mechanical Engineering, ICEAS, Bangalore, Karnataka, India.
Scientific reports
|April 12, 2025
概括
这项研究优化了尼姆油生物柴油与柴油发动机的纳米颗粒混合,实现了提高燃油效率和性能. 最好的混合物 (89.85%柴油,30%生物柴油,100ppm) 显著降低了燃料消耗,提高了制动热效率.
科学领域:
- 可持续的能源和燃料
- 燃烧工程 燃烧工程
- 纳米材料在能源中的作用
背景情况:
- 可持续能源的需求不断增长和更严格的环境法规推动了对替代燃料的需求.
- 尼姆油生物柴油提供一种不可食用的原料选择,避免与粮食资源竞争.
- 纳米颗粒由于具有催化性质,显示出作为燃烧增强剂的潜力.
研究的目的:
- 优化单柴油发动机的性能和排放特性,使用与纳米颗粒增强的尼姆油生物柴油混合物.
- 确定柴油和尼姆油生物柴油的理想混合比率,以及最佳的纳米颗粒度.
- 用先进的机器学习模型验证实验发现.
主要方法:
- 使用实验设计方法对生物柴油混合物 (B10,B20,B30) 与纳米颗粒 (100,150,200 ppm) 的实验性评估.
- 基于可取性的优化,以确定最佳的燃料组成和纳米粒子度.
- 实验结果与线性回归,决策树和随机森林模型的预测进行比较.
主要成果:
- 最佳的燃料组合被确定为89.85%的柴油和30%的生物柴油,含有100ppm纳米颗粒.
- 实现了0.45公斤/千瓦时的最低车特定燃油消耗 (BSFC) 和最大化的车热效率38.18% (3.33%的差异与验证).
- 随机森林模型显示了BSFC (测试R2=0.9620) 和排放 (测试R2=0.9826) 的最高预测准确度.
结论:
- 用纳米颗粒增强的尼姆油生物柴油混合物为提高柴油发动机性能和减少排放提供了可持续的解决方案.
- 综合实验和预测方法为优化生物柴油配方提供了一个强大的框架.
- 纳米颗粒通过改进的原子化和氧化来增强燃烧,从而提高燃料效率.
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