纳米技术和LSTM机器学习算法在CI发动机中的先进燃料喷雾动态中,具有不同的碗几何形状
Harish Venu1, Manzoore Elahi M Soudagar2,3,4, Tiong Sieh Kiong1
1Institute of Sustainable Energy, Universiti Tenaga Nasional, Jalan IKRAM-UNITEN, 43000, Kajang, Selangor, Malaysia.
Scientific reports
|January 6, 2025
概括
纳米技术和长短期记忆 (LSTM) 模型通过优化燃料喷雾动态来提高压缩点火发动机的效率. 这种方法改善了燃烧和减少排放,为可持续的发动机设计铺平了道路.
科学领域:
- * 燃烧科学 燃烧科学
- * 纳米技术的使用
- * 机器学习 * 机器学习
背景情况:
- *传统的压缩点火 (CI) 发动机在燃料原子化,燃烧效率和排放控制方面面临着挑战.
- *优化燃料喷雾动态对于提高CI发动机性能和可持续性至关重要.
- *不同的燃烧室几何结构对发动机性能和排放有重大影响.
研究的目的:
- * 研究纳米技术和长短记忆 (LSTM) 机器学习对CI发动机燃料喷雾动态的协同效应.
- * 模拟和预测主要喷雾参数,如透率,滴滴大小和蒸发率.
- * 评估不同活塞碗几何形状对发动机性能和排放的影响.
主要方法:
- *纳米颗粒集成到传统燃料中,以提高燃料性能.
- * LSTM机器学习模型的应用,用于分析和预测燃料喷雾行为.
- *使用Diesel-RK进行模拟,以验证燃烧室几何效应.
- *在相同的操作条件下对模拟结果的实验验证.
主要成果:
- *纳米粒子增强燃料与LSTM预测分析相结合,提高了燃烧性能并减少了污染物形成.
- * 在四元混合物中重新进入的碗形状显示,与传统的HCC碗相比,车热效率 (BTE) 提高了31.3%,车特定燃油消耗 (BSFC) 降低了8.65%.
- * 随着重新进入碗,观察到CO (90.16%),HC (59.95%) 和烟雾 (15.48%) 排放的显著减少,尽管NOx排放量更高.
结论:
- * 结合纳米技术和LSTM的跨学科方法为优化CI引擎提供了一个强大的框架.
- * 特定的活塞碗设计,如重新进入的配置文件,可以显著提高发动机效率和减少某些排放.
- *可能需要进一步的研究,以减轻观察到的氧化物排放量的增加,同时保持效率的提高.
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